KR101176500B1 - Image display apparatus, and method for operating the same - Google Patents

Abstract

The present invention relates to an image display apparatus and an operation method thereof. An operation method of an image display apparatus according to an exemplary embodiment of the present invention includes receiving a 33D image, detecting a region having a front depth in the 3D image, and when the region having a front depth is equal to or greater than the first region, And varying the depth to be smaller, and displaying the 3D image having the variable depth. As a result, it is possible to improve the user's convenience in displaying the 3D image.

Description

Image display apparatus, and method for operating the same}

The present invention relates to an image display apparatus and an operation method thereof, and more particularly, to an image display apparatus and an operation method thereof that can improve user convenience in displaying a 3D image.

The image display device is a device having a function of displaying an image that a user can watch. The user can watch the broadcast through the image display device. A video display device displays a broadcast selected by a user among broadcast signals transmitted from a broadcast station on a display. Currently, broadcasting is shifting from analog broadcasting to digital broadcasting worldwide.

Digital broadcasting refers to broadcasting for transmitting digital video and audio signals. Digital broadcasting is more resistant to external noise than analog broadcasting, so it has less data loss, is advantageous for error correction, has a higher resolution, and provides a clearer picture. In addition, unlike analog broadcasting, digital broadcasting is capable of bidirectional services.

SUMMARY OF THE INVENTION An object of the present invention is to provide an image display apparatus and an operation method thereof that can improve user convenience in displaying a 3D image.

Another object of the present invention is to provide an image display apparatus and a method of operating the same, through which the user can comfortably watch the 3D image when the 3D image is displayed.

According to an aspect of the present invention, there is provided a method of operating an image display apparatus, the method including receiving a 3D image, detecting a region having a front depth in the 3D image, and a region having a front depth. In the case of more than one region, the method includes varying the front depth so as to reduce the front depth and displaying the 3D image having the variable depth.

In addition, the operation method of the image display device according to an embodiment of the present invention for achieving the above object, receiving a 3D image, detecting the motion of the 3D image, and the front depth or back depth in the 3D image Detecting an area having a variable; varying a depth of the 3D image based on at least one of a motion or motion variation of the 3D image, a front depth area, or a back depth; and displaying a 3D image having a variable depth; do.

In addition, the image display apparatus according to an embodiment of the present invention for achieving the above object is variable so that the front depth is smaller when the display for displaying the image and the region having the front depth in the received 3D image is greater than or equal to the first region. And a controller for controlling to display a 3D image having a variable depth.

According to an embodiment of the present invention, the depth can be varied according to the front depth of the 3D image, so that the user can comfortably watch the 3D image.

In addition, by varying the depth according to the back depth of the 3D image, the user can comfortably watch the 3D image.

In addition, by varying the depth according to the motion or the amount of motion change of the 3D image, the user can comfortably watch the 3D image.

As a result, it is possible to improve the user's convenience in displaying the 3D image.

1 is a block diagram illustrating an image display apparatus according to an exemplary embodiment of the present invention.
2A to 2B are internal block diagrams of a set-top box and a display device according to an embodiment of the present invention.
3 is an internal block diagram of the controller of FIG. 1.
4 is a diagram illustrating various formats of a 3D image.
5 is a diagram illustrating an operation of a 3D viewing apparatus according to the format of FIG. 4.
6 is a diagram illustrating various scaling methods of 3D video signals according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating an image formed by a left eye image and a right eye image.
8 is a diagram illustrating depth of a 3D image according to a distance between a left eye image and a right eye image.
9 is a flowchart illustrating a method of operating an image display apparatus according to an embodiment of the present invention.
10A to 17B are views referred to for describing various examples of an operating method of the image display apparatus of FIG. 9.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

1 is a block diagram illustrating an image display apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the image display apparatus 100 according to an exemplary embodiment of the present invention includes a tuner unit 110, a demodulator 120, an external device interface unit 130, a network interface unit 135, and a storage unit. 140, a user input interface unit 150, a sensor unit (not shown), a controller 170, a display 180, an audio output unit 185, and a 3D viewing device 195.

The tuner unit 110 selects an RF broadcast signal corresponding to a channel selected by a user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through an antenna. Also, the selected RF broadcast signal is converted into an intermediate frequency signal, a baseband image, or a voice signal.

For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF). If the selected RF broadcast signal is an analog broadcast signal, it is converted into an analog baseband image or voice signal (CVBS / SIF). That is, the tuner 110 may process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal CVBS / SIF output from the tuner 110 may be directly input to the controller 170.

In addition, the tuner unit 110 may receive a single broadcast RF broadcast signal according to an ATSC (Advanced Television System Committee) scheme or a multiple broadcast RF broadcast signal according to a digital video broadcasting (DVB) scheme.

Meanwhile, the tuner unit 110 sequentially selects RF broadcast signals of all broadcast channels stored through a channel memory function among RF broadcast signals received through an antenna in the present invention, and converts them to intermediate frequency signals or baseband video or audio signals. Can be converted to

On the other hand, the tuner unit 110 may be provided with a plurality of tuners in order to receive broadcast signals of a plurality of channels. Alternatively, a single tuner may be used to receive broadcast signals of multiple channels simultaneously.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 110 and performs a demodulation operation.

For example, when the digital IF signal output from the tuner unit 110 is an ATSC scheme, the demodulator 120 performs 7-VSB (7-Vestigal Side Band) demodulation. Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 includes a trellis decoder, a de-interleaver, and a reed solomon decoder to perform trellis decoding, deinterleaving, Solomon decoding can be performed.

For example, when the digital IF signal output from the tuner unit 110 is a DVB scheme, the demodulator 120 performs coded orthogonal frequency division modulation (COFDMA) demodulation. Also, the demodulation unit 120 may perform channel decoding. For this, the demodulator 120 may include a convolution decoder, a deinterleaver, and a reed-solomon decoder to perform convolutional decoding, deinterleaving, and reed solomon decoding.

The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. In this case, the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal. For example, the stream signal may be an MPEG-2 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

On the other hand, the demodulator 120 described above can be provided separately according to the ATSC system and the DVB system. That is, it can be provided as an ATSC demodulation unit and a DVB demodulation unit.

The stream signal output from the demodulator 120 may be input to the controller 170. After performing demultiplexing, image / audio signal processing, and the like, the controller 170 outputs an image to the display 180 and outputs audio to the audio output unit 185.

The external device interface unit 130 may transmit or receive data with the connected external device 190. To this end, the external device interface unit 130 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 130 may be connected to the external device 190 such as a digital versatile disk (DVD), a Blu-ray, a game device, a camera, a camcorder, a computer (laptop), or the like by wire or wireless. . The external device interface unit 130 transmits an image, audio, or data signal input from the outside through the connected external device 190 to the controller 170 of the image display apparatus 100. In addition, the controller 170 may output an image, audio, or data signal processed by the controller 170 to a connected external device. To this end, the external device interface unit 130 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The A / V input / output unit includes a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, an S-video terminal (analog), and a DVI so that video and audio signals of an external device can be input to the video display device 100. (Digital Visual Interface) terminal, HDMI (High Definition Multimedia Interface) terminal, RGB terminal, D-SUB terminal and the like.

The wireless communication unit can perform short-range wireless communication with other electronic devices. The image display apparatus 100 may communicate with Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and Digital Living Network Alliance (DLNA). Depending on the specification, it can be networked with other electronic devices.

In addition, the external device interface unit 130 may be connected through at least one of the various set top boxes and the various terminals described above to perform input / output operations with the set top box.

The external device interface unit 130 may transmit / receive data with the 3D viewing device 195.

The network interface unit 135 provides an interface for connecting the image display apparatus 100 to a wired / wireless network including an internet network. The network interface unit 135 may include an Ethernet terminal for connection with a wired network, and for connection with a wireless network, a WLAN (Wi-Fi) or a Wibro (Wireless). Broadband, Wimax (World Interoperability for Microwave Access), High Speed Downlink Packet Access (HSDPA) communication standards, and the like may be used.

The network interface unit 135 may receive content or data provided by the Internet or a content provider or a network operator through a network. That is, it can receive contents and related information such as movies, advertisements, games, VOD, broadcasting signals, etc., provided from the Internet, a content provider, and the like through a network. In addition, the update information and the update file of the firmware provided by the network operator can be received. It may also transmit data to the Internet or content provider or network operator.

In addition, the network interface unit 135 is connected to, for example, an Internet Protocol (IP) TV, and receives the video, audio, or data signals processed in the set-top box for the IPTV to enable bidirectional communication. The signal processed by the controller 170 may be transmitted to the set-top box for the IPTV.

Meanwhile, the above-described IPTV may mean ADSL-TV, VDSL-TV, FTTH-TV, etc. according to the type of transmission network, and include TV over DSL, Video over DSL, TV overIP (TVIP), and Broadband TV ( BTV) and the like. In addition, IPTV may also mean an Internet TV capable of accessing the Internet, or a full browsing TV.

The storage 140 may store a program for processing and controlling each signal in the controller 170, or may store a signal-processed video, audio, or data signal.

In addition, the storage unit 140 may perform a function for temporarily storing an image, audio, or data signal input to the external device interface unit 130. In addition, the storage 140 may store information on a predetermined broadcast channel through a channel storage function such as a channel map.

The storage unit 140 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), It may include at least one type of storage medium such as RAM, ROM (EEPROM, etc.). The image display apparatus 100 may reproduce and provide a file (video file, still image file, music file, document file, etc.) stored in the storage 140 to a user.

1 illustrates an embodiment in which the storage unit 140 is provided separately from the control unit 170, but the scope of the present invention is not limited thereto. The storage 140 may be included in the controller 170.

The user input interface unit 150 transmits a signal input by the user to the control unit 170 or a signal from the control unit 170 to the user.

For example, the user input interface unit 150 may be powered on / off, channel selection, and screen from the remote controller 200 according to various communication methods such as a radio frequency (RF) communication method and an infrared (IR) communication method. A user input signal such as a setting may be received, or a signal from the controller 170 may be transmitted to the remote controller 200.

In addition, for example, the user input interface unit 150 may transmit a user input signal input from a local key (not shown) such as a power key, a channel key, a volume key, and a set value to the controller 170.

The sensor unit (not shown) may detect the location of the user or the location of the user's gesture, touch, or 3D viewing device 195. To this end, the sensor unit (not shown) may include a touch sensor, a voice sensor, a position sensor, an operation sensor, a gyro sensor, and the like.

The detected user's location, user's gesture, touch, or location signal of the 3D viewing device 195 may be input to the controller 170. Alternatively, unlike the drawing, it may be input to the controller 170 through the user input interface unit 150.

The controller 170 may demultiplex the input stream or process the demultiplexed signals through the tuner unit 110, the demodulator 120, or the external device interface unit 130. Signals can be generated and output.

The image signal processed by the controller 170 may be input to the display 180 and displayed as an image corresponding to the image signal. In addition, the image signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

The voice signal processed by the controller 170 may be sound output to the audio output unit 185. In addition, the voice signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

Although not shown in FIG. 1, the controller 170 may include a demultiplexer, an image processor, and the like. This will be described later with reference to FIG. 3.

In addition, the controller 170 may control overall operations of the image display apparatus 100. For example, the controller 170 may control the tuner 110 to control the tuner 110 to select an RF broadcast corresponding to a channel selected by a user or a pre-stored channel.

In addition, the controller 170 may control the image display apparatus 100 by a user command or an internal program input through the user input interface unit 150.

For example, the controller 170 controls the tuner 110 to input a signal of a channel selected according to a predetermined channel selection command received through the user input interface 150. Then, video, audio, or data signals of the selected channel are processed. The controller 170 may output the channel information selected by the user together with the processed video or audio signal through the display 180 or the audio output unit 185.

As another example, the controller 170 may output an external device 190, eg, a camera, input through the external device interface unit 130 according to an external device image playback command received through the user input interface unit 150. Alternatively, the video signal or the audio signal from the camcorder may be output through the display 180 or the audio output unit 185.

The controller 170 may control the display 180 to display an image. For example, the broadcast image input through the tuner unit 110, the external input image input through the external device interface unit 130, or the image input through the network interface unit 135 or stored in the storage unit 140. The image may be controlled to be displayed on the display 180.

In this case, the image displayed on the display 180 may be a still image or a video, and may be a 2D image or a 3D image.

Meanwhile, the controller 170 may generate and display a 3D object with respect to a predetermined object in the image displayed on the display 180. For example, the object may be at least one of a connected web screen (newspaper, magazine, etc.), an EPG (Electronic Program Guide), various menus, widgets, icons, still images, videos, and text.

Such a 3D object may be processed to have a different depth than the image displayed on the display 180. [ Preferably, the 3D object may be processed to appear protruding from the image displayed on the display 180.

The controller 170 recognizes a user's position based on an image photographed by a photographing unit (not shown). For example, the distance (z-axis coordinate) between the user and the image display apparatus 100 may be determined. In addition, the x-axis coordinates and the y-axis coordinates in the display 180 corresponding to the user position may be determined.

Meanwhile, the controller 170 may perform signal processing to enable viewing of a corresponding video according to the viewing device.

For example, when the sensor unit (not shown) or the photographing unit (not shown) detects the presence, operation, or number of the viewing device 195, the controller 170 performs pairing with the viewing device 195. Signal processing can be performed. That is, the display device 195 may control to output the pairing signal to the viewing device 195 and to receive the response signal from the viewing device 195.

The controller 170 may control the tuner 110 to receive a broadcast image according to the number of detected viewing devices 195. For example, if the number of detected viewing devices is three, the tuner 110 including the plurality of tuners may be controlled to receive broadcast images of different channels. In addition, the controller 170 may control to display each broadcast video at different times in synchronization with each viewing device.

The controller 170 may also receive an input external input image according to the number of detected viewing devices. For example, when the number of detected viewing apparatuses is three, each of the plurality of viewing apparatuses may be controlled to receive an external input image from an optical device such as a broadcast image or a DVD and an external input image from a PC. In addition, the controller 170 may control to display each video (broadcast video, DVD video, PC video) at different times in synchronization with each viewing device.

Meanwhile, the controller 170 may increase the vertical synchronization frequency Vsync of the displayed image and control the corresponding images to be displayed whenever the number of the viewing apparatuses detected during image display increases. For example, for 1/60 seconds, the first image and the second image are displayed in synchronization with the first viewing device and the second 3D viewing device, respectively, and when the third viewing device is used, for 1/60 seconds, The first to third images may be controlled to be displayed in synchronization with the first to third viewing devices, respectively. That is, the first image and the second image may be displayed at 120 Hz, and the first to third images may be displayed at 180 HZ.

On the other hand, the control unit 170 may set different viewing targets, for example, channel searching targets of broadcast images, for each viewing apparatus. For example, a channel search target may be set differently for each age such as an adult and a child, and the search target may be different when the channel is searched. In addition, it is also possible to provide by classification by taste, gender, recent viewing channel, or program grade.

On the other hand, when the first viewing device and the second viewing device select the same image from each other, the controller 170 may control to notify a message indicating that it is a duplicate. Such a message may be displayed in the form of an object on the display 180 or may be transmitted as a wireless signal to each viewing device.

On the other hand, although not shown in the figure, it may be further provided with a channel browsing processing unit for generating a thumbnail image corresponding to the channel signal or the external input signal. The channel browsing processor may receive a stream signal TS output from the demodulator 120 or a stream signal output from the external device interface 130, extract a video from the input stream signal, and generate a thumbnail image. Can be. The generated thumbnail image may be input as it is or encoded to the controller 170. In addition, the generated thumbnail image may be encoded in a stream form and input to the controller 170. The controller 170 may display a thumbnail list including a plurality of thumbnail images on the display 180 by using the input thumbnail image. In this case, the thumbnail list may be displayed in a simple viewing manner displayed in a partial region while a predetermined image is displayed on the display 180 or in an overall viewing manner displayed in most regions of the display 180. The thumbnail images in the thumbnail list may be updated sequentially.

The display 180 converts an image signal, a data signal, an OSD signal, a control signal, or an image signal, a data signal, a control signal received from the external device interface unit 130 processed by the controller 170, and generates a driving signal. Create

The display 180 may be a PDP, an LCD, an OLED, a flexible display, or a 3D display. In order to view the 3D image, the display 180 may be divided into an additional display method and a single display method.

The independent display method may implement a 3D image by the display 180 alone without additional display, for example, glasses, and the like, for example, a lenticular method, a parallax barrier, or the like. Various methods can be applied.

Meanwhile, the additional display method may implement 3D images by using the additional display as the 3D viewing apparatus 195 in addition to the display 180. For example, various methods such as a head mounted display (HMD) type and glasses type may be used. Can be applied.

On the other hand, the spectacle type may be divided into a passive system such as a polarized glasses type and an active system such as a shutter glass type. In addition, the head mounted display can be divided into a passive type and an active type.

The 3D viewing apparatus 195 may be 3D glasses capable of viewing stereoscopic images. The 3D glass 195 may include a passive polarized glass or an active shutter glass, and is described with the concept of including the aforementioned head mount type.

The display 180 may be configured as a touch screen and used as an input device in addition to the output device.

The audio output unit 185 receives a signal processed by the controller 170, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs a voice signal. The voice output unit 185 may be implemented by various types of speakers.

The photographing unit (not shown) photographs the user. The photographing unit (not shown) may be implemented by one camera, but is not limited thereto and may be implemented by a plurality of cameras. Meanwhile, the photographing unit (not shown) may be disposed above the display 180. The image information photographed by the photographing unit (not shown) is input to the controller 170.

The controller 170 may detect a user's gesture by combining or combining an image captured by a photographing unit (not shown) or a detected signal from a sensor unit (not shown).

The remote control apparatus 200 transmits the user input to the user input interface unit 150. To this end, the remote control apparatus 200 can use Bluetooth, RF (radio frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee, or the like. In addition, the remote control apparatus 200 may receive an image, an audio or a data signal output from the user input interface unit 150, and display or output the audio from the remote control apparatus 200.

The video display device 100 described above is a fixed type of ATSC (8-VSB) digital broadcasting, DVB-T (COFDM) digital broadcasting, ISDB-T (BST-OFDM) digital broadcasting, and the like. It may be a digital broadcast receiver capable of receiving at least one. In addition, as a mobile type, digital broadcasting of terrestrial DMB system, digital broadcasting of satellite DMB system, digital broadcasting of ATSC-M / H system, digital broadcasting of DVB-H system (COFDM system) and media flow link only system It may be a digital broadcast receiver capable of receiving at least one of digital broadcasts. It may also be a digital broadcast receiver for cable, satellite communications, or IPTV.

On the other hand, the image display device described in the present specification, a TV receiver, a projector (probjector), a mobile phone, a smart phone (smart phone), a notebook computer (notebook computer), digital broadcasting terminal, PDA (Personal Digital Assistants), PMP (Portable) Multimedia Player) may be included.

Meanwhile, a block diagram of the image display apparatus 100 shown in FIG. 1 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the image display apparatus 100 that is actually implemented. That is, two or more constituent elements may be combined into one constituent element, or one constituent element may be constituted by two or more constituent elements, if necessary. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and apparatuses do not limit the scope of the present invention.

On the other hand, the image display apparatus 100 does not include the tuner 110 and the demodulator 120 shown in FIG. 1, unlike the illustrated in FIG. 1, but the network interface 130 or the external device interface unit ( Through 135, image content may be received and played back.

The image display apparatus 100 is an example of an image signal processing apparatus that performs signal processing of an image stored in an apparatus or an input image. Another example of the image signal processing apparatus is the display 180 illustrated in FIG. 1. And a set top box in which the audio output unit 185 is excluded, the above-described DVD player, Blu-ray player, game device, computer, etc. may be further illustrated. Among these, the set top box will be described with reference to FIGS. 2A to 2B below.

2A to 2B are internal block diagrams of a set-top box and a display device according to an embodiment of the present invention.

First, referring to FIG. 2A, the set-top box 250 and the display apparatus 300 may transmit or receive data by wire or wirelessly. Hereinafter, a description will be given focusing on differences from FIG. 1.

The set top box 250 may include a network interface unit 255, a storage unit 258, a signal processor 260, a user input interface unit 263, and an external device interface unit 265.

The network interface unit 255 provides an interface for connecting to a wired / wireless network including an internet network. It is also possible to transmit or receive data with other users or other electronic devices via the connected network or another network linked to the connected network.

The storage unit 258 may store a program for processing and controlling signals in the signal processing unit 260, and may include an image, audio, or data input from the external device interface unit 265 or the network interface unit 255. It may also serve as a temporary storage of the signal.

The signal processor 260 performs signal processing on the input signal. For example, demultiplexing or decoding of an input video signal may be performed, and demultiplexing or decoding of an input audio signal may be performed. To this end, a video decoder or an audio decoder may be provided. The signal processed video signal or audio signal may be transmitted to the display apparatus 300 through the external device interface unit 265.

The user input interface unit 263 transmits a signal input by the user to the signal processor 260 or transmits a signal from the signal processor 260 to the user. For example, various control signals, such as power on / off, operation input, setting input, etc., which are input through a local key (not shown) or the remote control apparatus 200, may be received and transmitted to the signal processor 260.

The external device interface unit 265 provides an interface for data transmission or reception with an external device connected by wire or wirelessly. In particular, an interface for transmitting or receiving data with the display apparatus 300 is provided. In addition, it is possible to provide an interface for transmitting or receiving data with an external device such as a game device, a camera, a camcorder, a computer (laptop), or the like.

The set top box 250 may further include a media input unit (not shown) for reproducing a separate media. An example of such a media input unit may be a Blu-ray input unit (not shown). That is, the set top box 250 can be provided with a Blu-ray player or the like. The input media such as a Blu-ray disc may be transmitted to the display apparatus 300 through the external device interface unit 265 for display after signal processing such as demultiplexing or decoding in the signal processing unit 260. .

The display device 300 includes a tuner unit 270, an external device interface unit 273, a demodulation unit 275, a storage unit 278, a control unit 280, a user input interface unit 283, a display 290, And an audio output unit 295, as shown in FIG.

The tuner 270, the demodulator 275, the storage 278, the controller 280, the user input interface 283, the display 290, and the audio output unit 295 are described with reference to FIG. 1. The tuner 110, the demodulator 120, the storage 140, the controller 170, the user input interface 150, the display 180, and the audio output unit 185 are described. Omit the description.

The external device interface unit 273 provides an interface for data transmission or reception with an external device connected by wire or wirelessly. In particular, it provides an interface for transmitting or receiving data with the set-top box 250.

Accordingly, the video signal or the audio signal input through the set top box 250 is output through the display 290 or the audio output unit 295 via the control unit 290.

Next, referring to FIG. 2B, the set-top box 250 and the display apparatus 300 are the same as the set-top box 250 and the display apparatus 300 of FIG. 2A, except that the tuner 270 and the demodulator ( The difference is that the position of 275 is located in the set-top box 250 and not in the display apparatus 300. Only the differences are described below.

The signal processor 260 may perform signal processing of a broadcast signal received through the tuner 270 and the demodulator 275. In addition, the user input interface unit 263 may receive an input such as channel selection and channel storage.

Meanwhile, although the audio output unit 185 of FIG. 1 is not illustrated in the set top box 250 of FIGS. 2A to 2B, it is also possible to have separate audio output units.

3 is an internal block diagram of the controller of FIG. 1, FIG. 4 is a diagram illustrating various formats of a 3D image, and FIG. 5 is a diagram illustrating an operation of a 3D viewing apparatus according to the format of FIG. 4.

Referring to the drawings, the control unit 170 according to an embodiment of the present invention, the demultiplexer 310, the image processor 320, the OSD generator 340, the mixer 345, the frame rate converter 350, and a formatter 360. The audio processing unit (not shown) and the data processing unit (not shown) may be further included.

The demultiplexer 310 demultiplexes an input stream. For example, when an MPEG-2 TS is input, it may be demultiplexed and separated into video, audio, and data signals, respectively. Here, the stream signal input to the demultiplexer 310 may be a stream signal output from the tuner 110, the demodulator 120, or the external device interface 130.

The image processor 320 may perform image processing of the demultiplexed image signal. To this end, the image processor 320 may include an image decoder 225 and a scaler 235.

The image decoder 225 decodes the demultiplexed image signal, and the scaler 235 performs scaling to output the resolution of the decoded image signal on the display 180.

The video decoder 225 may include decoders of various standards. For example, the image decoder 225 may include at least one of an MPEG-2 decoder, an H.264 decoder, an MPEC-C decoder (MPEC-C part 3), an MVC decoder, and an FTV decoder.

Meanwhile, the image signal decoded by the image processor 320 may be classified into a case in which only a 2D image signal is present, a case in which a 2D image signal and a 3D image signal are mixed, and a case in which only a 3D image signal is present.

For example, when the external video signal input from the external device 190 or the broadcast video signal of the broadcast signal received by the tuner 110 includes only the 2D video signal, the 2D video signal and the 3D video signal are mixed. , And 3D video signals, the signal may be processed by the controller 170, in particular, the image processor 320, and the like, and thus, mixed signals of 2D video signals, 2D video signals, and 3D video signals, respectively. The 3D video signal may be output.

The image signal decoded by the image processor 320 may be a 3D image signal having various formats. For example, the image may be a 3D image signal including a color image and a depth image, or may be a 3D image signal including a plurality of view image signals. The plurality of viewpoint image signals may include, for example, a left eye image signal and a right eye image signal.

Here, the format of the 3D video signal is a side by side format (FIG. 4A) in which the left eye video signal L and the right eye video signal R are disposed left and right, as shown in FIG. 4, and up and down. Top / Down format (FIG. 4B) to arrange, Frame Sequential format (FIG. 4C) to arrange by time division, Interlaced format which mixes left-eye video signal and right-eye video signal line by line (FIG. 4B) 4d), a checker box format (FIG. 4E) for mixing the left eye image signal and the right eye image signal for each box may be used.

The OSD generator 340 generates an OSD signal according to a user input or itself. For example, a signal for displaying various types of information on a screen of the display 180 as a graphic or text may be generated based on a user input signal. The generated OSD signal may include various data such as a user interface screen, various menu screens, widgets, and icons of the image display apparatus 100. In addition, the generated OSD signal may include a 2D object or a 3D object.

The mixer 345 may mix the OSD signal generated by the OSD generator 340 and the decoded image signal processed by the image processor 320. In this case, the OSD signal and the decoded video signal may each include at least one of a 2D signal and a 3D signal. The mixed video signal is provided to the frame rate converter 350.

The frame rate converter (FRC) 350 converts the frame rate of the input video. For example, a frame rate of 60 Hz is converted to 120 Hz or 240 Hz or 480 Hz. When converting a frame rate of 60 Hz to 120 Hz, it is possible to insert the same first frame or insert a third frame predicted from the first frame and the second frame between the first frame and the second frame. When converting a frame rate of 60 Hz to 240 Hz, it is possible to insert three more identical frames or three predicted frames. When converting a frame rate of 60 Hz to 480 Hz, it is possible to insert seven more identical frames or insert seven predicted frames.

The frame rate converter 350 may output the input frame rate as it is without additional frame rate conversion. Preferably, when the 2D video signal is input, the frame rate can be output as it is. On the other hand, when a 3D video signal is input, the frame rate can be varied as described above.

The formatter 360 may arrange the left eye image frame and the right eye image frame of the frame rate-converted 3D image. In addition, the synchronization signal Vsync for opening the left eye glass and the right eye glass of the 3D viewing apparatus 195 may be output.

Meanwhile, the formatter 360 may receive a mixed signal from the mixer 345, that is, an OSD signal and a decoded video signal, and separate the 2D video signal and the 3D video signal.

Meanwhile, in the present specification, the 3D video signal is meant to include a 3D object. Examples of the object include a picture in picture (PIP) image (still image or a video), an EPG indicating broadcast program information, various menus, widgets, There may be an icon, text, an object in the image, a person, a background, a web screen (newspaper, magazine, etc.).

The formatter 360 may change the format of the 3D video signal. For example, it may be changed to any one of various formats illustrated in FIG. 4. Accordingly, according to the format, as shown in FIG. 5, the operation of the glasses-type 3D viewing apparatus may be performed.

First, FIG. 5A illustrates an operation of the 3D glasses 195, in particular the shutter glass 195, when the formatter 360 arranges and outputs the frame sequential format among the formats of FIG.

That is, when the left eye image L is displayed on the display 180, the left eye glass of the shutter glass 195 is opened and the right eye glass is closed. When the right eye image R is displayed, The left eye glass is closed and the right eye glass is opened.

FIG. 5B illustrates an operation of the 3D glass 195, in particular, the polarization glass 195 when the formatter 360 arranges and outputs the side-by-side format among the formats of FIG. 4. Meanwhile, the 3D glass 195 applied in FIG. 5B may be a shutter glass, and the shutter glass may be operated as a polarized glass by keeping both the left eye glass and the right eye glass open. .

Meanwhile, the formatter 360 may convert the 2D video signal into a 3D video signal. For example, an edge or selectable object may be detected within the 2D image signal according to a 3D image generation algorithm, and an object or selectable object according to the detected edge may be separated into a 3D image signal and generated. Can be. In this case, the generated 3D image signal may be divided into a left eye image signal L and a right eye image signal R, as described above, and may be aligned.

Although not shown in the figure, a 3D processor (not shown) for processing a 3D effect signal may be further disposed after the formatter 360. The 3D processor (not shown) may process brightness, tint, and color adjustment of an image signal to improve 3D effects. For example, signal processing may be performed to sharpen the near distance and blur the far distance. Meanwhile, the functions of the 3D processor may be merged into the formatter 360 or merged into the image processor 320. This will be described later with reference to FIG. 6 and the like.

Meanwhile, the audio processor (not shown) in the controller 170 may perform voice processing of the demultiplexed voice signal. To this end, the audio processor (not shown) may include various decoders.

For example, if the demultiplexed speech signal is a coded speech signal, it can be decoded. Specifically, when the demultiplexed speech signal is an encoded speech signal of MPEG-2 standard, it may be decoded by an MPEG-2 decoder. In addition, when the demultiplexed speech signal is an encoded speech signal of MPEG 4 Bit Sliced Arithmetic Coding (BSAC) standard according to the terrestrial digital multimedia broadcasting (DMB) scheme, it may be decoded by an MPEG 4 decoder. In addition, when the demultiplexed speech signal is an encoded audio signal of the AAC (Advanced Audio Codec) standard of MPEG 2 according to the satellite DMB scheme or DVB-H, it may be decoded by the AAC decoder. In addition, when the demultiplexed speech signal is a encoded speech signal of the Dolby AC-3 standard, it may be decoded by the AC-3 decoder.

Also, the audio processor (not shown) in the controller 170 may process a base, a treble, a volume control, and the like.

The data processor (not shown) in the controller 170 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Progtam Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel. For example, the EPG information may be ATSC-PSIP (ATSC-Program and System Information Protocol) information in the case of the ATSC scheme, and may include DVB-Service Information (DVB-SI) in the case of the DVB scheme. . The ATSC-PSIP information or the DVB-SI information may be information included in the aforementioned stream, that is, the header (2 bytes) of the MPEG-2 TS.

In FIG. 3, the signals from the OSD generator 340 and the image processor 320 are mixed in the mixer 345 and then 3D processed in the formatter 360, but the present invention is not limited thereto. May be located after the formatter. That is, the output of the image processor 320 is 3D processed by the formatter 360, and the OSD generator 340 performs 3D processing together with OSD generation, and then mixes each processed 3D signal by the mixer 345. It is also possible.

Meanwhile, a block diagram of the controller 170 shown in FIG. 3 is a block diagram for one embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specification of the controller 170 that is actually implemented.

In particular, the frame rate converter 350 and the formatter 360 are not provided in the controller 170, but may be provided separately.

6 is a diagram illustrating various scaling methods of 3D video signals according to an embodiment of the present invention.

Referring to the drawings, in order to increase the 3D effect, the controller 170 may perform 3D effect signal processing. Among them, in particular, the size or tilt of the 3D object in the 3D image may be adjusted.

As shown in FIG. 6A, the 3D image signal or the 3D object 510 in the 3D image signal may be enlarged or reduced 512 as a whole at a predetermined ratio, and as shown in FIGS. 6B and 6C. The 3D object may be partially enlarged or reduced (trapezoidal shapes 514 and 516). In addition, as illustrated in FIG. 6D, at least a part of the 3D object may be rotated (parallel quadrilateral shape) 518. Through such scaling (scaling) or tilting, it is possible to emphasize a three-dimensional effect, that is, a three-dimensional effect, of a 3D image or a 3D object in the 3D image.

On the other hand, as the slope becomes larger, as shown in FIG. 6 (b) or 6 (c), the length difference between the parallel sides of the trapezoidal shapes 514 and 516 increases, or as shown in FIG. 6 (d), the rotation angle is increased. It gets bigger.

Meanwhile, the size adjustment or the tilt adjustment may be performed after the 3D video signal is aligned in a predetermined format in the formatter 360. Alternatively, it may be performed by the scaler 235 in the image processor 320. On the other hand, the OSD generation unit 340, it is also possible to create the object in the shape as shown in Figure 6 to generate the OSD to emphasize the 3D effect.

On the other hand, although not shown in the figure, as a signal processing for a three-dimensional effect, in addition to the size adjustment or tilt adjustment illustrated in Figure 6, the brightness (brightness), tint (Tint) and It is also possible to perform signal processing such as color adjustment. For example, signal processing may be performed to sharpen the near distance and blur the far distance. Meanwhile, the signal processing for the 3D effect may be performed in the controller 170 or may be performed through a separate 3D processor. In particular, when performed in the controller 170, it may be performed in the formatter 360 together with the above-described size adjustment or tilt adjustment, or may be performed in the image processor 320.

FIG. 7 is a diagram illustrating an image formed by a left eye image and a right eye image, and FIG. 8 is a diagram illustrating a depth of a 3D image according to an interval between a left eye image and a right eye image.

First, referring to FIG. 7, a plurality of images or a plurality of objects 615, 625, 635, and 645 are illustrated.

First, the first object 615 includes first left eye images 611 and L based on the first left eye image signal and first right eye images 613 and R based on the first right eye image signal. An interval between the first left eye image 611 and L and the first right eye image 613 and R is illustrated to be d1 on the display 180. At this time, the user recognizes that an image is formed at an intersection of an extension line connecting the left eye 601 and the first left eye image 611 and an extension line connecting the right eye 603 and the first right eye image 603. Accordingly, the user recognizes that the first object 615 is located behind the display 180.

Next, since the second object 625 includes the second left eye images 621 and L and the second right eye images 623 and R and overlaps each other, the second object 625 is displayed on the display 180. do. Accordingly, the user recognizes that the second object 625 is located on the display 180.

Next, the third object 635 and the fourth object 645 are the third left eye image 631 and L, the second right eye image 633 and R, and the fourth left eye image 641 and L and the fourth object, respectively. The right eye images 643 and R are included, and the intervals are d3 and d4, respectively.

According to the above-described method, the user recognizes that the third object 635 and the fourth object 645 are positioned at the positions where the images are formed, respectively, and in the drawing, each of them is located in front of the display 180.

At this time, it is recognized that the fourth object 645 is projected before the third object 635, that is, more protruded than the third object 635. This is because the interval between the fourth left eye image 641, L and the fourth right eye image 643, d4 is larger than the interval d3 between the third left eye image 631, L and the third right eye image 633, R. [

Meanwhile, in the exemplary embodiment of the present invention, the distance between the display 180 and the objects 615, 625, 635, and 645 recognized by the user is expressed as a depth. Accordingly, the depth when the user is recognized as if it is located behind the display 180 has a negative value (-), and the depth when the user is recognized as if it is located before the display 180. (depth) is assumed to have a negative value (+). That is, the greater the degree of protrusion in the direction of the user, the greater the size of the depth.

Referring to FIG. 8, the distance a between the left eye image 701 and the right eye image 702 of FIG. 8A is the distance between the left eye image 701 and the right eye image 702 shown in FIG. 8B. When (b) is smaller, it can be seen that the depth b 'of the 3D object of FIG. 8 (b) is larger than the depth a' of the 3D object of FIG. 8 (a).

As such, when the 3D image is exemplified as the left eye image and the right eye image, a position recognized as image formation from the user's point of view varies depending on the distance between the left eye image and the right eye image. Therefore, by adjusting the display interval of the left eye image and the right eye image, it is possible to adjust the depth of the 3D image or 3D object composed of the left eye image and the right eye image.

9 is a flowchart illustrating a method of operating an image display apparatus according to an embodiment of the present invention, and FIGS. 10A to 17B are diagrams for explaining various examples of the method of operating the image display apparatus of FIG. 9.

Referring to FIG. 9, first, a 3D image is received (S910).

The 3D image input to the controller 170 may be a broadcast image from a broadcast signal received from the tuner 110, an external input image from an external device, an image stored in the storage 140, or an input from a content provider through a network. It may be an image.

Meanwhile, the controller 170 may refer to 3D video flags, 3D video metadata, or 3D video format information in the header of the stream indicating that the 3D video is a 3D video. It may be determined whether the input image is a 3D image.

If the input image is a 3D image, the controller 170 processes the 3D image. As described above in FIG. 3, the controller 170 performs signal processing such as demultiplexing or decoding, converts the frame rate in the frame rate converter 350, or formats the 3D image in the formatter 360. May be converted into any one of the formats shown in FIG. 4, or the left eye image and the right eye image may be arranged and output in the input format. In addition, the OSD signal generated by the OSD generator 340 may be combined to perform signal processing.

The controller 170 controls the 3D video signal processed to be displayed on the display 180.

10 illustrates that a 3D image is displayed according to a side by side format. That is, as shown in FIG. 10A, the formatter 360 in the control unit 170 includes a left eye image 1010 including an object 1015 and a right eye image 1020 including an object 1025 in side-by-side format. You can sort by. The display 180 may display a left eye image 1010 and a right eye image 1020.

As a result, the user 195 wearing the 3D viewing apparatus 1105, for example, polarized glass, may display the 3D image 1030 having the 3D object 1035 having a predetermined depth da on the display 180. I can recognize it.

Meanwhile, FIG. 10 illustrates displaying the input 3D image as it is, and according to an exemplary embodiment of the present invention, the depth is varied in consideration of the motion, the front depth, or the back depth of the 3D image, thereby allowing the user to feel comfortable. Make it available for viewing. This operation method will be described with reference to FIG. 11A and the like below.

Next, it is determined whether the motion or the motion change amount of the 3D image is less than or equal to a predetermined value (S915). The controller 170, in particular, the image processor 320 may detect a motion or a motion change amount of the input 3D image.

For example, when the image decoder 325 in the image processor 320 decodes the input 3D image, the motion vector MV may be calculated by comparing the previous frame image with the current frame image. Alternatively, a motion vector (MV) included in the encoded video signal may be extracted. To this end, the controller 170 may include a frame buffer for storing the previous frame. The controller 170 may calculate a motion of the 3D image by using the motion vector.

On the other hand, when there are a plurality of objects in the 3D image, and thus there are a plurality of motion vectors, the controller 170 may detect the motion or the amount of motion change of the 3D image in consideration of all the motion vectors.

The controller 170 determines whether the motion or motion variation of the 3D image is less than or equal to a predetermined value. When the amount of motion or motion change is large, the influence of depth variation when viewing 3D images is reduced. Therefore, when the amount of motion or motion change of the 3D image is less than or equal to a predetermined value, it is preferable to perform depth change. In order to vary the depth, the following steps are performed.

Meanwhile, comparing FIG. 10 and FIG. 11 shows that the images of FIGS. 10 and 11 have some similarities, so that the amount of motion or motion change is small. Accordingly, it is possible to perform the following variable depth.

Next, an area having a front depth in the 3D image is detected (S920). Also, an area having a back depth in the 3D image is detected (S925). In operation S930, it is determined whether the area having the front depth is greater than or equal to the first area. If applicable, the depth is varied so that the front depth is small (S935). In operation S940, the control apparatus 100 displays a 3D image having a variable depth.

The controller 170, in particular, the formatter 360 detects an area having a front depth in the 3D image. For example, the formatter 360 detects an edge in the left eye image of the 3D image, detects an edge in the right eye image of the 3D image, compares the detected edge of the left eye image with the edge of the right eye image, It is possible to detect an area having a front depth.

An object of the left eye image may be detected by edge detection of the left eye image, and an object of the right eye image may be detected by edge detection of the right eye image. As described above with reference to FIG. 7 and the like, since the depth is determined by the disparity of the objects in the left eye image and the right eye image, the position of the object of the left eye image and the object of the right eye image are compared to determine whether the front depth is obtained. To judge. When the object located on the right side of the left eye image is located more than the right eye image, the front depth is obtained.

In addition, the controller 170, in particular, the formatter 360 determines whether the detected object depth has an object area equal to or greater than the first area. On the other hand, when there are a plurality, it is determined whether each sum is equal to or greater than the first area.

In addition, if applicable, the control part 170, especially the formatter 360, is set so that a front depth may become small. That is, the depth is set to be smaller by adjusting the disparity of the objects in the left eye image and the right eye image. This is to prevent the user from feeling unnatural when viewing 3D due to excessive protrusion. By this depth reduction, the user can comfortably watch 3D video.

Meanwhile, the depth change amount may vary depending on the size of the object area having the front depth. For example, in a state where the object area having the front depth is greater than or equal to the first area, the front depth may be set smaller as the size thereof becomes larger.

Also, the depth change amount may vary depending on whether the difference between the left eye image and the right eye image is greater than or equal to the reference value when the object area having the front depth is equal to or greater than the first area.

For example, when the area having the front depth is greater than or equal to the first area and the front depth is greater than or equal to the reference value, the area having the front depth is greater than or equal to the first area and the left eye image and the right eye are greater than or equal to the reference value. If the difference in the image is less than the reference value may be set larger than the amount of change in the front depth. That is, the depth can be set to be smaller. As a result, the user may feel comfortable when viewing 3D.

On the other hand, the controller 170, especially the formatter 360, may be set so that the front depth is increased when the area having the front depth is less than the first area.

FIG. 11A illustrates that a left eye image 1110 having an object 1115 and a right eye image 1120 having an object 1125 are displayed on the display 180 according to a side by side format. Accordingly, as illustrated in FIG. 11B, the user 1105 wearing the 3D viewing apparatus 195 may watch the 3D image 1130 including the 3D object 1135 having a predetermined depth d1.

FIG. 12A illustrates a 3D image having a front depth adjusted based on the 3D image of FIG. 11. As described above, the left eye object 1115 and the right eye object 1125 in FIG. 11A can be detected by edge detection, and the corresponding object is compared by the position comparison between the left eye object 1115 and the right eye object 1125, and the like. Determine whether is a front object. When detected as the front object 1135 as shown in FIG. 11B, it is determined whether the front object area is greater than or equal to the first area. If the size of the front object is greater than or equal to the first area, the depth thereof is reduced as shown in FIG. 12A, and accordingly, a 3D image 1140 having the 3D object 1145 having a variable depth d2 is displayed on the display 180. Will be displayed. As a result, the user 1105 wearing the 3D viewing apparatus 195 is able to comfortably watch a 3D image because the front object having a large size is adjusted and displayed in depth.

12B illustrates that the object 1135 of FIG. 11B is reduced in depth and displayed as the object 1145 of FIG. 12A.

On the other hand, although not shown in the figure, as described above, the larger the size of the front object area, the larger the amount of change in depth, the smaller the depth of the object. In addition, the greater the difference between the left eye image and the right eye image, the larger the amount of change in depth, and the smaller the depth of the object may be.

FIG. 13 illustrates that the 3D image 1310 including the plurality of objects 1315 and 1318 having the front depths d3 and d4 are displayed, and FIG. 14 is respectively reduced due to the variable front depth. The 3D image 1410 including the plurality of objects 1415 and 1418 having the front depths d5 and d6 is displayed. As the number of objects having the front depth increases, or as the entire front depth area increases, the depth change amount may be set to be large, so that the depth of the object may be reduced.

On the other hand, after the step 925 (S925), it is determined whether the area having a back depth is greater than or equal to the second area (S945). If applicable, the depth is varied so that the bag depth is reduced (S950). In operation S940, the control apparatus 100 displays a 3D image having a variable depth.

In particular, the controller 170 detects an area having a back depth in the 3D image. For example, the formatter 360 detects an edge in the left eye image of the 3D image, detects an edge in the right eye image of the 3D image, compares the detected edge of the left eye image with the edge of the right eye image, An area having a back depth can be detected.

An object of the left eye image may be detected by edge detection of the left eye image, and an object of the right eye image may be detected by edge detection of the right eye image. As described above in FIG. 7 and the like, since the depth is determined by the disparity of the objects in the left eye image and the right eye image, the back depth is compared by comparing the positions of the objects in the left eye image and the object in the right eye image. Determine whether you have. When the object located on the left side is arranged in the left eye image as compared to the right eye image, the left eye image has a back depth.

In addition, the controller 170, in particular, the formatter 360 determines whether the detected object area of the back depth is greater than or equal to the second area. On the other hand, when there are a plurality, it is determined whether each sum is greater than or equal to the second area.

In addition, if applicable, the control part 170, especially the formatter 360, sets so that the magnitude | size of a back depth may become small. That is, the size of the depth is set to be smaller by adjusting the disparity of the objects in the left eye image and the right eye image. This is to prevent the user from feeling unnatural when viewing 3D due to excessive depression. By reducing the size of the back depth, the user can comfortably watch 3D video.

Meanwhile, the depth change amount may vary depending on the size of the object region having the back depth. For example, in a state where the object area having the back depth is greater than or equal to the second area, as the size thereof increases, the size of the bag depth decreases.

In addition, the depth change amount may vary depending on whether the difference between the left eye image and the right eye image is greater than or equal to the reference value in a state where the object area having the back depth is equal to or greater than the second area.

For example, the amount of change in the back depth when the area having the back depth is greater than or equal to the second area and the difference between the left eye image and the right eye image is greater than or equal to the reference value, the area having the back depth is greater than or equal to the second area, the left eye image and the right eye If the difference in the image is less than the reference value may be set larger than the change amount of the back depth. That is, the depth can be set to be smaller. As a result, the user may feel comfortable when viewing 3D.

On the other hand, the control unit 170, especially the formatter 360, it is also possible to set the size of the back depth to be large, if the area having the back depth is less than the second area.

FIG. 15 illustrates that a 3D image 1510 having a 3D object 1510 having a predetermined depth d7 is displayed on the display 180.

Meanwhile, comparing FIG. 15 with FIG. 16 shows that the images of FIGS. 15 and 16 have some similarities, so that the amount of motion or motion change is small. Accordingly, it is possible to perform the following variable depth.

FIG. 16A illustrates that the left eye image 1110 having the object 1125 and the right eye image 1120 having the object 1115 are displayed on the display 180 according to the side by side format. Accordingly, as illustrated in FIG. 16B, the user 1105 wearing the 3D viewing apparatus 195 may watch the 3D image 1610 including the 3D object 1615 having a predetermined depth db.

FIG. 17A illustrates a 3D image in which a back depth is adjusted based on the 3D image of FIG. 16. As described above, the left eye object 1125 and the right eye object 1115 in FIG. 16A can be detected by edge detection, and the corresponding object is compared by the position comparison between the left eye object 1125 and the right eye object 1115. Determine whether is a back object. When detected as the back object 1615 as shown in FIG. 16B, it is determined whether the back object area is greater than or equal to the second area. If the size of the back object is greater than or equal to the second area, the depth of the depth is reduced as shown in FIG. 17A, and accordingly, the 3D image 1710 having the 3D object 1715 of variable depth dc is displayed. Will be displayed on the screen. As a result, the user 1105 wearing the 3D viewing apparatus 195 is able to comfortably watch the 3D image since the back object is displayed with the depth adjusted.

Meanwhile, FIG. 17B illustrates that the object 1615 of FIG. 16B is reduced in depth and displayed as the object 1715 of FIG. 17A. That is, closer to the display 180 direction.

On the other hand, although not shown in the drawing, as described above, the larger the size of the back object area, the larger the amount of change in depth, the smaller the size of the depth of the object. In addition, the greater the difference between the left eye image and the right eye image, the larger the amount of change in depth, and the smaller the depth of the object may be.

Although not shown in the drawing, similar to FIG. 13, when a plurality of objects each having a back depth is provided, it is also possible to perform variable bag depth as described above. As the number of objects having the bag depth increases, or as the total back depth area increases, the depth change amount may be set to be large, and the size of the depth of the object may be reduced.

The image display apparatus and the operation method thereof according to the present invention are not limited to the configuration and method of the embodiments described above, but the embodiments may be applied to all or some of the embodiments May be selectively combined.

Meanwhile, the operation method of the image display apparatus of the present invention can be implemented as a code that can be read by a processor on a recording medium readable by a processor included in the image display apparatus. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet. . The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims (18)

Receiving a 3D image;
Detecting motion of the 3D image;
Detecting an area having a front depth in the 3D image;
If the size of the region having the front depth is greater than or equal to the size of the first region, changing the front depth to be smaller; And
Displaying the depth-variable 3D image;
And the depth varying step is performed when the motion or motion variation of the 3D image is less than or equal to a predetermined value. The method of claim 1,
Detecting an area having a back depth in the 3D image; And
If the size of the area having the back depth is greater than or equal to the size of the predetermined second area, varying the size of the back depth so that the size of the area is smaller. The method of claim 1,
Detecting the region having the front depth,
Detecting an edge in a left eye image of the 3D image;
Detecting an edge in the right eye image of the 3D image;
And comparing an edge of the left eye image with an edge of the right eye image. The method of claim 2,
Detecting the area having the back depth,
Detecting an edge in a left eye image of the 3D image;
Detecting an edge in the right eye image of the 3D image;
And comparing an edge of the left eye image with an edge of the right eye image. The method of claim 1,
The front depth variable step,
The change amount of the front depth when the size of the area having the front depth is equal to or larger than the size of the first area and the parallax between the left eye image and the right eye image of the 3D image is greater than or equal to a reference value,
The size of the area having the front depth is greater than or equal to the size of the first area, and the image display is set to be larger than the change amount of the front depth when the parallax between the left eye image and the right eye image of the 3D image is less than the reference value. How the device works. The method of claim 2,
The variable back depth step,
The amount of change in the back depth when the size of the area having the back depth is greater than or equal to the size of the second area and the parallax between the left eye image and the right eye image of the 3D image is greater than or equal to a reference value,
The size of the area having the back depth is greater than or equal to the size of the second area, and the image display is set larger than the amount of change in the back depth when the parallax between the left eye image and the right eye image of the 3D image is less than the reference value. How the device works. The method of claim 1,
The front depth variable step,
And when the size of the region having the front depth is less than the size of the first region, setting the front depth to be large. The method of claim 2,
The variable back depth step,
And when the size of the area having the back depth is less than the size of the second area, setting the size of the back depth to be large. delete Receiving a 3D image;
Detecting motion of the 3D image;
Detecting an area having a front depth or a back depth in the 3D image;
Varying a depth of the 3D image based on at least one of a motion or a motion variation amount of the 3D image, the front depth region, or a back depth; And
Displaying the depth-variable 3D image; and operating the image display device. A display for displaying an image; And
If the size of the area having a front depth in the received 3D image is greater than or equal to the size of the first area, the control unit for varying the front depth is small, and controls to display the 3D image of the variable depth;
The control unit,
And varying the depth when the motion or motion variation of the 3D image is less than or equal to a predetermined value. The method of claim 11,
The control unit,
And when the size of the area having the back depth in the 3D image is greater than or equal to the size of the second predetermined area, the size of the back depth is changed to be smaller. The method of claim 11,
The control unit,
And an edge in a left eye image and an edge in a right eye image of the 3D image, and detecting the front depth area by comparing the detected edge of the left eye image with an edge of the right eye image. The method of claim 12,
The control unit,
And an edge in a left eye image and an edge in a right eye image of the 3D image, and detecting the back depth area by comparing the detected edge of the left eye image with an edge of the right eye image. The method of claim 11,
The control unit,
When the size of the area having the front depth is equal to or larger than the size of the first area, and the parallax between the left eye image and the right eye image of the 3D image is greater than or equal to the reference value, the amount of change in the front depth is
Wherein the size of the area having the front depth is equal to or larger than the size of the first area, and is set to be larger than the change amount of the front depth when the parallax between the left eye image and the right eye image of the 3D image is less than the reference value. Video display device. The method of claim 12,
The control unit,
When the size of the area having the back depth is equal to or larger than the size of the second area, and the parallax between the left eye image and the right eye image of the 3D image is equal to or greater than a reference value,
Wherein the size of the area having the back depth is equal to or larger than the size of the second area, and is set to be larger than the change amount of the back depth when the parallax between the left eye image and the right eye image of the 3D image is less than the reference value. Video display device. The method of claim 11,
The control unit,
And a motion or motion change amount of the 3D image. The method of claim 11,
The control unit,
And a formatter configured to reduce the front depth when the size of the region having the front depth in the received 3D image is greater than or equal to the size of the first region.

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