WO2012132379A1

WO2012132379A1 - Image display device, display control device, display control method and programme

Info

Publication number: WO2012132379A1
Application number: PCT/JP2012/002064
Authority: WO
Inventors: 大田　恭義; 靖子八尋; 孝夫桑原; 玲長谷川
Original assignee: 富士フイルム株式会社
Priority date: 2011-03-30
Filing date: 2012-03-26
Publication date: 2012-10-04

Abstract

[Problem] To enable a conventional monitor (display means) for normal images to be used as a monitor for stereoscopic images. [Solution] By means of a control unit (8a) having the functionality of a display control means, display, on a monitor (9), a right-eye image using a combination of Rs and Gs among the sub-pixels (SP) in the monitor (9), and display, on the monitor (9), a left-eye image using Bs, and display the right-eye image and the left-eye image at the same time on the same screen. A stereoscopic image is viewed by a user wearing colour glasses having a right-eye colour filter (transmitting only Rs and Gs) for viewing the right-eye image and a left-eye colour filter (transmitting only Bs) for viewing the left-eye image.

Description

Image display device, display control device, display control method, and program

The present invention provides an image display device, a display control device, and a display control device that display a stereoscopic image composed of two images, a right-eye image and a left-eye image, using a display unit in which each pixel is configured by a plurality of sub-pixels The present invention relates to a display control method and a program.

Conventionally, it is known that stereoscopic viewing can be performed using parallax by displaying a combination of two images, a right-eye image and a left-eye image. Such a stereoscopically viewable image (hereinafter referred to as a stereoscopic image or a stereo image) is generated based on a plurality of images having parallax obtained by photographing the same subject from different positions.

And the generation of such stereoscopic images is used not only in the fields of digital cameras and televisions, but also in the field of radiographic imaging. That is, the patient is irradiated with radiation from different directions, the radiation transmitted through the subject is detected by a radiation image detector, and a plurality of radiation images having parallax are obtained, and these radiations are acquired. A stereoscopic image is generated based on the image. And by generating a stereoscopic image in this way, a radiographic image with a sense of depth can be observed, and a radiographic image more suitable for diagnosis can be observed. (For example, see Patent Document 1)

JP 2010-110571 A

By the way, as an image display apparatus for displaying a stereoscopic image as described above, a right-eye image and a left-eye image are respectively displayed using two monitors, and these are used by a half mirror, a polarizing glass, or the like. Thus, one image is incident on the right eye of the observer, and the other radiographic image is incident on the left eye of the observer so that a stereoscopic image is displayed, or a parallax barrier method or a lenticular method. A configuration has been proposed in which a right-eye image and a left-eye image are displayed on a single monitor in a stereoscopic manner.

If a conventionally used monitor for normal images can be used as a display device for stereoscopic images, it is attractive because a user can construct an image display device for stereoscopic images at a small additional cost. In order to display a stereoscopic image, a special configuration that is not included in the monitor for a normal image is required. Therefore, it has been difficult to use a conventional monitor for a normal image as a monitor for a stereoscopic image.

In view of the above circumstances, the present invention provides an image display device, a display control device, a display control method, and a program that can use a conventional monitor for normal images (display means) as a monitor for stereoscopic images. The purpose is to do.

The image display apparatus of the present invention is an image display apparatus that displays a stereoscopic image composed of two images, a right-eye image and a left-eye image, using display means in which each pixel is configured by a plurality of sub-pixels. The right-eye image is displayed using some of the plurality of sub-pixels constituting each pixel and the right-eye image is not used for displaying the right-eye image among the plurality of sub-pixels constituting each pixel. The display control means for displaying a left-eye image using pixels is provided.

In the image display device of the present invention, the plurality of sub-pixels are R, G, and B sub-pixels, and the display control means uses either a combination of R and G or a combination of G and B. One of the right-eye image and the left-eye image may be displayed using the pixels, and the other of the right-eye image and the left-eye image may be displayed using the remaining sub-pixels.

In this case, when the right-eye image and the left-eye image are radiographic images having different shooting angles with respect to the subject on the left and right, the display control means has a smaller shooting angle with respect to the subject of the right-eye image or the left-eye image. It is preferable to display an image using sub-pixels of two colors.

The plurality of sub-pixels are R, G, and B sub-pixels, and the display control unit displays common information to be combined with the right-eye image and the left-eye image using the G sub-pixels. One of the right-eye image and the left-eye image is displayed using either the R or B sub-pixel, and the other of the right-eye image or the left-eye image is displayed using the remaining sub-pixels. Also good.

Further, the plurality of sub-pixels are sub-pixels of four colors of R, Y, G, and B, and the display control means uses either the sub-pixel of the combination of R and Y or the combination of G and B, One of the right-eye image and the left-eye image may be displayed, and the other of the right-eye image and the left-eye image may be displayed using the remaining subpixels.

The plurality of sub-pixels are R, Y, G, and B sub-pixels, and the display control unit combines the right-eye image and the left-eye image using either Y or G sub-pixels. Display one of the right-eye image and the left-eye image using a combination of Y or G subpixels that are not used to display the common information and R or B subpixels. The other of the right-eye image and the left-eye image may be displayed using the remaining sub-pixels.

Further, the display control apparatus of the present invention displays a stereoscopic image including two images of a right-eye image and a left-eye image on a display unit in which each pixel is configured by a plurality of sub-pixels. A device that displays a right-eye image using some of the plurality of sub-pixels constituting each pixel and does not use the right-eye image among a plurality of sub-pixels constituting each pixel. The left-eye image is displayed using the sub-pixel.

Further, the display control method of the present invention is a display control for displaying a stereoscopic image composed of two images of a right-eye image and a left-eye image on a display means in which each pixel is constituted by a plurality of sub-pixels. A method for displaying a right-eye image using a part of sub-pixels among a plurality of sub-pixels constituting each pixel, and not displaying a right-eye image among a plurality of sub-pixels constituting each pixel. The image for the left eye is displayed using the sub-pixel.

Further, the stereoscopic image display method according to the present invention may be provided as a program for causing a computer to execute the method.

According to the image display device, the display control device, the display control method, and the program of the present invention, two images, a right-eye image and a left-eye image, are compared with the conventional display means in which each pixel is composed of a plurality of sub-pixels. When displaying a stereoscopic image consisting of an image, a right-eye image is displayed using some of the sub-pixels constituting each pixel, and among the plurality of sub-pixels constituting each pixel. Since the left-eye image is displayed using the sub-pixels that are not used for displaying the right-eye image, the conventional display means can be used as the display means for the stereoscopic image.

1 is a schematic configuration diagram of a breast stereoscopic image photographing display system using an image display device according to a first embodiment of the present invention. The figure which looked at the arm part of the stereoscopic vision image photographing display system for breasts shown in FIG. 1 from the right direction of FIG. 1 is a block diagram showing a schematic configuration inside a computer of the breast stereoscopic image capturing and displaying system shown in FIG. The elements on larger scale which show the pixel structure of the monitor of the said image display apparatus The elements on larger scale which show the pixel structure of the monitor of the image display apparatus of the 2nd Embodiment of this invention

Hereinafter, a stereoscopic image capturing and displaying system for breasts using the image display device according to the first embodiment of the present invention will be described with reference to the drawings. First, a schematic configuration of the whole breast stereoscopic image photographing / displaying system according to the present embodiment will be described. FIG. 1 is a schematic configuration diagram of a breast stereoscopic image photographing display system using the image display apparatus according to the first embodiment of the present invention, and FIG. 2 is an arm unit of the breast stereoscopic image photographing display system shown in FIG. FIG. 3 is a block diagram showing a schematic configuration inside a computer of the stereoscopic image capturing and displaying system for breasts shown in FIG. 1, and FIG. 4 is a pixel configuration of a monitor of the image display device. FIG.

As shown in FIG. 1, a breast stereoscopic imaging and displaying system 1 according to this embodiment includes a breast imaging device 10, a computer 8 connected to the breast imaging device 10, and a monitor 9 connected to the computer 8. And an input unit 7.

As shown in FIG. 1, the mammography apparatus 10 includes a base 11, a rotary shaft 12 that can move in the vertical direction (Z direction) with respect to the base 11, and can rotate. The arm part 13 connected with the base 11 is provided. FIG. 2 shows the arm 13 viewed from the right direction in FIG.

The arm section 13 has an alphabet C shape, and a radiation table 16 is attached to one end of the arm section 13 so as to face the imaging table 14 at the other end. The rotation and vertical movement of the arm unit 13 are controlled by an arm controller 31 incorporated in the base 11.

Inside the imaging table 14 are provided a radiation image detector 15 such as a flat panel detector and a detector controller 33 that controls reading of a charge signal from the radiation image detector 15. Further, inside the imaging table 14, a charge amplifier that converts the charge signal read from the radiation image detector 15 into a voltage signal, a correlated double sampling circuit that samples the voltage signal output from the charge amplifier, A circuit board provided with an AD conversion unit for converting a voltage signal into a digital signal is also installed.

In addition, the photographing table 14 is configured to be rotatable with respect to the arm unit 13, and even when the arm unit 13 rotates with respect to the base 11, the direction of the photographing table 14 is fixed to the base 11. can do.

The radiation image detector 15 can repeatedly perform recording and reading of a radiation image, and may use a so-called direct type radiation image detector that directly receives radiation and generates charges. Alternatively, a so-called indirect radiation image detector that converts radiation once into visible light and converts the visible light into a charge signal may be used. As a radiation image signal readout method, a radiation image signal is read out by turning on / off a TFT (thin film transistor) switch, or by irradiating reading light. It is desirable to use a so-called optical readout system from which a radiation image signal is read out, but the present invention is not limited to this, and other systems may be used.

A radiation source 17 and a radiation source controller 32 are accommodated in the radiation irradiation unit 16. The radiation source controller 32 controls the timing of irradiating radiation from the radiation source 17 and the radiation generation conditions (tube current, tube voltage, time, etc.) in the radiation source 17.

Further, in the central portion of the arm portion 13, a compression plate 18 that is disposed above the imaging table 14 and presses and compresses the breast M, a support portion 20 that supports the compression plate 18, and a support portion 20 that extends in the vertical direction. A moving mechanism 19 for moving in the (Z direction) is provided. The position of the compression plate 18 and the compression pressure are controlled by the compression plate controller 34.

The computer 8 includes a central processing unit (CPU), a storage device such as a semiconductor memory, a hard disk, and an SSD. The control unit 8a, the data storage unit 8b, and the image processing unit shown in FIG. Part 8c is configured.

The control unit 8a functions as display control means for displaying the right-eye image and the left-eye image on the monitor 9, and outputs predetermined control signals to the various controllers 31 to 34 to control the entire system. Is what you do. A specific control method will be described in detail later. The data storage unit 8b stores radiation image data and the like for each imaging angle acquired by the radiation image detector 15. The image processing unit 8c is for performing various image processing.

The input unit 7 is composed of a pointing device such as a keyboard and a mouse, for example, and is used for receiving inputs such as shooting conditions and operation instructions.

As shown in FIG. 4, the monitor 9 as a display means is configured such that each pixel P is composed of R, G, and B subpixels SP, and includes a CRT monitor, a liquid crystal monitor, an organic EL monitor, and the like. Can be used.

Next, the operation of the breast image radiographing display system of this embodiment will be described.

First, the breast M is installed on the imaging table 14, and the breast M is compressed by the compression plate 18 with a predetermined pressure.

Next, after various imaging conditions including a combination of an angle formed by two different imaging directions (hereinafter referred to as a convergence angle θ) and an imaging angle θ ′ constituting the convergence angle θ are input in the input unit 7, An instruction to start shooting is input.

Then, when there is an instruction to start photographing at the input unit 7, a stereo image of the breast M is photographed. Specifically, first, the control unit 8 a outputs information about the convergence angle θ and the imaging angle θ ′ constituting the convergence angle θ to the arm controller 31. In this embodiment, the information of the convergence angle θ at this time is θ = 4 °, and the combination of the imaging angle θ ′ constituting the convergence angle θ is a combination of θ ′ = 0 ° and θ ′ = 4 °. However, the present invention is not limited to this, and the photographer can set an arbitrary convergence angle θ at the input unit 7. Note that the convergence angle θ is preferably set to 4 ° or more and 15 ° or less because it is difficult to perform appropriate stereoscopic viewing if the convergence angle θ is too small or too large. As a combination of the shooting angle θ ′, the one shooting angle θ ′ described above, that is, the shooting angle θ ′ for shooting an image for two-dimensional observation is preferably 0 °. This is because an image taken from the front of the radiation image detector 15 is most suitable for two-dimensional observation.

The arm controller 31 receives the information on the convergence angle θ output from the control unit 8a, and the arm controller 31 causes the arm unit 13 to be in a direction perpendicular to the imaging table 14 based on the information on the convergence angle θ. Output a control signal. In other words, in the present embodiment, a control signal is output so that the shooting angle θ ′ with the arm 13 in the direction perpendicular to the detection surface 15a is 0 °.

In response to the control signal output from the arm controller 31, the arm unit 13 rotates to the 0 ° position. Subsequently, the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and readout of the radiation image signal. In accordance with this control signal, radiation is emitted from the radiation source 17, and a radiation image obtained by photographing the breast M from the direction where the imaging angle θ ′ is 0 ° is detected by the radiation detector 15. Is read and stored in the data storage unit 8b of the computer 8.

Subsequently, a control signal that outputs the imaging angle θ ′ at which the arm unit 13 is inclined by 4 ° with respect to the direction perpendicular to the detection surface 15a is output.

In response to the control signal output from the arm controller 31, the arm portion 13 rotates to a position of 4 °. Subsequently, the control unit 8a outputs a control signal to the radiation source controller 32 and the detector controller 33 so as to perform radiation irradiation and readout of the radiation image signal. In accordance with this control signal, radiation is emitted from the radiation source 17, and a radiation image obtained by photographing the breast M from the direction in which the imaging angle θ ′ is 4 ° is detected by the radiation detector 15, and a radiation image signal is detected by the detector controller 33. Is read and stored in the data storage unit 8b of the computer 8.

Next, the operation when displaying a stereoscopic image will be described.

First, when displaying a stereoscopic image on the monitor 9, two radiographic image signals to be a right-eye image and a left-eye image stored in the data storage unit 8b of the computer 8 are read from the data storage unit 8b and displayed. The control unit 8a having a function as control means displays the right-eye image on the monitor 9 using a combination of R and G among the sub-pixels SP of the monitor 9, and displays the left-eye image on the monitor 9 using B. Let As a result, the right-eye image and the left-eye image are simultaneously displayed on the same screen on the monitor 9.

Note that when the right-eye image and the left-eye image are radiographic images having different imaging angles with respect to the subject on the left and right, the image with the smaller imaging angle is a more important image for diagnosis. In the case of the present embodiment, since imaging is performed at imaging angles θ ′ of 0 ° and 4 °, an image acquired at an imaging angle θ ′ of 0 ° is more important for diagnosis. It becomes.

Therefore, it is preferable to display an image acquired at an imaging angle θ ′ of 0 ° as a right-eye image using two subpixels. This is because a larger number of subpixels used for display is advantageous in both display resolution and display gradation.

The user wears color glasses having a color filter for the right eye that observes the image for the right eye (only R and G are transmitted) and a color filter for the left eye that observes the image for the left eye (only transmits B), and the image for the left eye and the image for the right eye A stereoscopic image can be observed by observing the image with the left and right eyes.

By adopting such an aspect, the conventional monitor 9 can be used as a monitor for stereoscopic images.

In the present embodiment, the aspect of the sub-pixel that displays the left-eye image and the right-eye image is not limited to the above, and can be changed as appropriate.

For example, the G sub-pixel is used to display common information such as characters that are commonly combined with the right-eye image and the left-eye image, and the right-eye image or the left-eye image is displayed using either the R or B sub-pixel. One of the images may be displayed, and the other of the right-eye image and the left-eye image may be displayed using the remaining sub-pixels.

In such a case, the color filter for the right eye of the color glasses transmits only the color for displaying the right eye image and the color for displaying the common information, and the color filter for the left eye has the color for displaying the image for the left eye. Only the color for displaying the common information needs to be transparent. In this case, the common information such as characters will look the same with the left and right eyes, and no parallax will occur between the left and right, so the common information will not appear three-dimensional.

Next, a second embodiment of the present invention will be described. The breast stereoscopic image capturing and displaying system according to the present embodiment is different from the breast stereoscopic image capturing and displaying system according to the first embodiment only in the configuration of the monitor 9. Therefore, the description of the same components as those in the first embodiment is omitted unless particularly necessary. FIG. 5 is a partially enlarged view showing the pixel configuration of the monitor of the image display apparatus according to the second embodiment of the present invention.

As shown in FIG. 5, the monitor 9 as a display unit of the present embodiment is configured such that each pixel P is composed of four sub-pixels SP of R, Y, G, and B, and includes a CRT monitor, Existing ones such as a liquid crystal monitor and an organic EL monitor can be used.

Next, the operation when displaying a stereoscopic image will be described.

First, when displaying a stereoscopic image on the monitor 9, two radiographic image signals to be a right-eye image and a left-eye image stored in the data storage unit 8b of the computer 8 are read from the data storage unit 8b and displayed. The control unit 8a having a function as control means causes the right eye image to be displayed on the monitor 9 using a combination of R and Y among the sub-pixels SP of the monitor 9, and the left eye image is displayed using a combination of G and B. It is displayed on the monitor 9. As a result, the right-eye image and the left-eye image are simultaneously displayed on the same screen on the monitor 9.

The user wears color glasses having a right-eye color filter for observing the right-eye image (only R and Y are transmitted) and a left-eye color filter for observing the left-eye image (only G and B are transmitted), and the left-eye image and A stereoscopic image can be observed by observing the right-eye image with the left and right eyes.

Also in this aspect, the same effect as that of the first embodiment can be obtained.

For example, common information such as characters to be combined in the right-eye image and the left-eye image using either Y or G sub-pixels is displayed, and the sub-pixels that are not used for displaying the common information of Y or G And one of the right-eye image and left-eye image is displayed using a combination of R and B sub-pixels, and the other of the right-eye image and left-eye image is displayed using the remaining sub-pixels. It is good also as what makes it.

In this case, as in the first embodiment, it is preferable to display an image with a smaller shooting angle using two-color sub-pixels.

The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

For example, the number of subpixels in each pixel of the monitor is not limited to three or four colors as described above, and may be two or five or more colors.

Moreover, in the description of the above embodiment, an example in which the image display apparatus according to the present invention is combined with a breast stereoscopic image capturing / displaying system has been described. The present invention is not limited to the system, and can be combined with any system such as a radiographic image capturing apparatus that images the chest, head, and the like.

Of course, in addition to the above, various improvements and modifications may be made without departing from the scope of the present invention.

Claims

An image display device for displaying a stereoscopic image composed of two images, a right-eye image and a left-eye image, using a display unit in which each pixel is configured by a plurality of sub-pixels,
The right-eye image is displayed using some of the sub-pixels that constitute each pixel, and the sub-pixel that is not used for displaying the right-eye image among the plurality of sub-pixels constituting each pixel An image display apparatus comprising display control means for displaying the left-eye image using a display.
The plurality of subpixels are R, G, and B subpixels,
The display control means displays one of the right-eye image or the left-eye image using a sub-pixel of either a combination of R and G or a combination of G and B, and uses the remaining sub-pixels. 2. The image display device according to claim 1, wherein the other of the right-eye image and the left-eye image is displayed.
The right-eye image and the left-eye image are radiographic images having different imaging angles with respect to the subject on the left and right,
3. The display control means for displaying an image having a smaller photographing angle with respect to a subject of the right-eye image or the left-eye image using two-color sub-pixels. Image display device.
The plurality of subpixels are R, G, and B subpixels,
The display control means displays common information to be combined with the right-eye image and the left-eye image using the G subpixel, and uses either the R or B subpixel to display the right-eye image or the 2. The image display apparatus according to claim 1, wherein one of the left-eye images is displayed, and the other of the right-eye image and the left-eye image is displayed using the remaining sub-pixels.
The plurality of sub-pixels are sub-pixels of four colors of R, Y, G, and B;
The display control means displays one of the right-eye image or the left-eye image using a subpixel of either the combination of R and Y or a combination of G and B, and uses the remaining subpixels. 2. The image display device according to claim 1, wherein the other of the right-eye image and the left-eye image is displayed.
The plurality of sub-pixels are sub-pixels of four colors of R, Y, G, and B;
The display control means displays the common information to be combined with the right-eye image and the left-eye image using either Y or G subpixels, and is not used for displaying the common information of Y or G. One of the right-eye image and the left-eye image is displayed using a combination of sub-pixels and either R or B, and the right-eye image or the left-eye image is displayed using the remaining sub-pixels. 2. The image display device according to claim 1, wherein the other of the images is displayed.
The right-eye image and the left-eye image are radiographic images having different imaging angles with respect to the subject on the left and right,
7. The display control means for displaying an image having a smaller photographing angle with respect to a subject of the right-eye image or the left-eye image using two-color sub-pixels. Image display device.
A display control device that displays a stereoscopic image composed of two images, a right-eye image and a left-eye image, on a display unit in which each pixel is configured by a plurality of sub-pixels,
The right-eye image is displayed using some of the sub-pixels that constitute each pixel, and the sub-pixel that is not used for displaying the right-eye image among the plurality of sub-pixels constituting each pixel A display control apparatus for displaying the image for the left eye using a display.
A display control method for displaying a stereoscopic image composed of two images, a right-eye image and a left-eye image, on a display unit in which each pixel is configured by a plurality of sub-pixels,
The right-eye image is displayed using some of the sub-pixels that constitute each pixel, and the sub-pixel that is not used for displaying the right-eye image among the plurality of sub-pixels constituting each pixel A display control method, wherein the left-eye image is displayed using a display.
A program for causing a computer to execute the display control method according to claim 9.