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WO2018219293A1 - 一种信息终端 - Google Patents

一种信息终端 Download PDF

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Publication number
WO2018219293A1
WO2018219293A1 PCT/CN2018/089016 CN2018089016W WO2018219293A1 WO 2018219293 A1 WO2018219293 A1 WO 2018219293A1 CN 2018089016 W CN2018089016 W CN 2018089016W WO 2018219293 A1 WO2018219293 A1 WO 2018219293A1
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WO
WIPO (PCT)
Prior art keywords
parameter
display
photo
user
information terminal
Prior art date
Application number
PCT/CN2018/089016
Other languages
English (en)
French (fr)
Inventor
陈梓平
黄泽贤
黄磊
Original Assignee
广东野光源眼科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东野光源眼科技有限公司 filed Critical 广东野光源眼科技有限公司
Priority to US16/617,997 priority Critical patent/US20200090626A1/en
Publication of WO2018219293A1 publication Critical patent/WO2018219293A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/02—Networking aspects
    • G09G2370/022—Centralised management of display operation, e.g. in a server instead of locally
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Definitions

  • the present invention relates to the field of lighting technologies, and in particular, to an information terminal.
  • the brightness sensor located near the earpiece recognizes the surrounding light environment to detect the brightness of the surrounding environment, and then calculates the brightness of the screen display according to the preset algorithm.
  • the user often encounters the display of the brightness of the screen in the automatic adjustment mode, which does not conform to his own visual perception. This is due to the error between the ambient brightness detection and the user's angle of view through the brightness sensor, and Only due to the limitations of brightness regulation. At the same time, for scenes with relatively dark ambient lighting, even if the brightness of the display is adjusted, the brightness of the surrounding environment cannot be fully adapted and the user's normal visualization needs are also taken into account. There is currently no good way to solve the above problems in the industry.
  • An object of the present invention is to provide an information terminal capable of sampling illumination of a background environment based on a range of a user's viewing angle, and generating a control signal according to the sampled state parameter of the background environment to control an external lighting device for illumination of the background environment.
  • the brightness and color temperature of the display screen are adjusted accordingly, so that the brightness and color temperature of the display screen match the illumination state of the background environment of the user's viewing angle range, so that the screen display conforms to the visual perception of the user, thereby effectively reducing the use.
  • the visual fatigue during use protects the user's visual health.
  • an embodiment of the present invention provides an information terminal, including
  • the information terminal further comprises: a camera, a photo detection unit, a photo gradation analysis unit, an output unit, a display parameter adjustment unit, and a backlight parameter Adjustment unit
  • the external lighting device illuminates the background environment of the user's viewing angle range
  • the camera is configured to acquire a photo analog signal or a photo digital signal of a background environment of a user's viewing angle range
  • the photo detecting unit is connected to the camera through the first communication device, and converts the photo analog signal or photo digital signal acquired by the camera into digitized photo data;
  • the photo gradation analyzing unit performs gradation analysis on the photo data, and generates a state parameter of the background environment of the user viewing angle range according to the setting parameter of the camera, and respectively sends the state parameter to the background lighting parameter adjusting unit and the Said display parameter adjustment unit;
  • the background illumination parameter adjustment unit is connected to the backlight by the second communication device, generates a control signal according to the state parameter, and sends the control signal to the output unit;
  • the output unit outputs the control signal to the external lighting device for adjusting an illumination parameter of the external lighting device such that an illumination state of the background environment reaches a preset parameter; wherein the illumination parameter is at least Including brightness and / or color temperature;
  • the display parameter adjustment unit adjusts the display parameter of the display screen according to the state parameter of the background environment based on the preset correspondence relationship, so that the display parameter of the display screen and the adjustment within the range of the user's perspective
  • the illumination state of the subsequent background environment matches; wherein the display parameters include at least brightness and/or color temperature.
  • the display parameter adjustment unit includes: first adjustment means for adjusting display parameters of the display screen; after the display parameter is adjusted, displaying parameters of the display screen and the user's viewing angle range The preset adjustment relationship of the illumination state of the background environment is changed, and the first correction correspondence is generated; wherein the first adjustment device is specifically:
  • the background illumination parameter adjustment unit comprises: second adjustment means for adjusting illumination parameters of the external illumination device; after the illumination parameter is adjusted, displaying parameters of the display screen with the user The preset correspondence relationship of the illumination state of the background environment of the viewing angle is changed, and the second correction correspondence is generated; wherein the second adjusting device is specifically:
  • the information terminal is connected to the cloud through the network, and the state parameter of the background environment is transmitted to the cloud for synchronization, and is stored as a state preset parameter.
  • the cloud performs data analysis on the preset correspondence relationship of the background environment of the plurality of information terminals and the parameters of the first modified correspondence relationship, and generates a universal state preset parameter adapted to the first range. And a trait state preset parameter adapted to the second range, wherein each of the information terminals acquires a ubiquitous state preset parameter or a trait state preset parameter corresponding to the background environment through the cloud.
  • the information terminal is connected to the cloud through a network, and transmits a parameter of a preset correspondence relationship between the display parameter of the display screen and the illumination state of the background environment of the user perspective range to the cloud.
  • the cloud saves a user habit list corresponding to the user, and the user habit list includes a user ID corresponding to the user, a display parameter of the display screen, an illumination state, and a background of the display parameter and the user's viewing angle range.
  • the preset relationship of the lighting state of the environment matches.
  • the cloud performs data analysis according to a preset correspondence between the display parameter of the display screen and the illumination state of the background environment of the user's viewing angle range, and the parameter of the second modified correspondence relationship, and generates a ubiquitous preset correspondence parameter adapted to the first range and a trait preset correspondence parameter adapted to the second range, wherein each of the information terminals acquires display parameters for matching the display screen through the cloud
  • the ubiquitous preset correspondence relationship parameter or the trait preset corresponding relationship parameter of the illumination state of the background environment of the user perspective range is preferably, the cloud performs data analysis according to a preset correspondence between the display parameter of the display screen and the illumination state of the background environment of the user's viewing angle range, and the parameter of the second modified correspondence relationship, and generates a ubiquitous preset correspondence parameter adapted to the first range and a trait preset correspondence parameter adapted to the second range, wherein each of the information terminals acquires display parameters for matching the display screen through the cloud
  • the data analysis of the cloud is specifically:
  • a modified correspondence corresponding to the second deviation number and greater than the first deviation threshold and smaller than the second deviation threshold is weighted with the preset correspondence, thereby generating a second range of trait preset correspondence parameters.
  • the state parameter of the background environment comprises a brightness parameter and/or a color temperature parameter.
  • the adjusting the display parameter of the display screen according to the state parameter of the background environment specifically includes:
  • the information terminal further includes a collection image positioning device
  • the acquiring image positioning device locates each frame image collected by the camera, and performs fusion splicing processing on the multi-frame image collected by the camera according to the positioning, thereby obtaining a photo analog signal of a background environment of the user's viewing angle range or Photo digital signal.
  • the photo detecting unit is further configured to perform blind spot analysis on the photo analog signal or the photo digital signal, and perform simulation prediction on the analyzed blind spot region, thereby combining the simulated prediction result and the photo analog signal.
  • a photo digital signal generates the digitized photo data.
  • the information terminal further includes a photo color analysis unit, performing color analysis on the photo data, and calculating a color value according to a color sensitivity function;
  • the color sensitivity function is a piecewise function related to color clutter;
  • a state parameter of the background environment of the user perspective range is generated in conjunction with the color value and the result of the grayscale analysis and the setup parameter of the camera.
  • the information terminal provided by the embodiment of the present invention can sample the illumination of the background environment based on the range of the user's perspective, and generate a control signal according to the sampled state parameter of the background environment to control the external lighting device used for illumination of the background environment, and At the same time, the brightness and color temperature of the display screen are adjusted accordingly, so that the brightness and color temperature of the display screen match the illumination state of the background environment of the user's viewing angle range, so that the screen display conforms to the visual perception of the user, thereby effectively reducing the user's Visual fatigue during use protects the user's visual health.
  • FIG. 1 is a schematic structural diagram of an information terminal according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of another information terminal according to an embodiment of the present invention.
  • FIG. 3 is a structural diagram of a system with multiple information terminals according to an embodiment of the present invention.
  • the illumination state of the background environment has a great influence on the visual effect of the display screen.
  • the size of the pupil can be adjusted according to the brightness of the object to adjust, and the higher the brightness, the smaller the pupil is adjusted. The lower the brightness, the larger the pupil is adjusted.
  • the phone when using a 5-inch display phone, the phone is placed at a distance of about 30cm from the eye.
  • the visual solid angle of our eyes is about 120 degrees, and the visual range of the eyes at 30cm is about 8482cm 2 , while the 5-inch display.
  • the area of the mobile phone is no more than 100cm 2 , and the visual range of the mobile phone display is less than 2%.
  • the display when using a computer with a 20-inch display, the display is placed at a distance of about 50cm from the eye. At this time, the visual range of the eye at 50cm is about 23562cm 2 , and the area of the 20-inch computer display is no more than 1200cm.
  • the computer screen accounts for less than 6% of the human eye's visual range. Therefore, the size of the pupil of the eye is mainly affected by the illumination state of the background environment of the display. In order to make the user more comfortable when using the display, the brightness of the display must be adjusted according to the size of the pupil, that is, according to the lighting state of the background environment of the display.
  • the adjustment of the brightness of the display screen in the information terminal of the invention is especially suitable for use in a dark environment.
  • the display of the information terminal can be adjusted and displayed according to the brightness and color temperature of the external environment, especially the environment of the user's perspective, which can protect the user's visual health. .
  • the information terminal of the present invention includes, but is not limited to, a smart phone and a personal digital assistant (PAD).
  • PDA personal digital assistant
  • FIG. 1 and FIG. 2 are respectively schematic diagrams showing two implementation manners of the information terminal according to the embodiment.
  • the information terminal provided in this embodiment includes: a display screen 1, a camera 2, a photo detecting unit 3, and a photo.
  • the gradation analysis unit 4, the output unit 7, the display screen parameter adjustment unit 5, and the background illumination parameter adjustment unit 9; the information terminal is connected to the external illumination device, and the background environment of the user's viewing angle range is illuminated by the external illumination device.
  • the display screen 1 is used for image display of the output information of the information terminal.
  • various display screens that can be used, which differ depending on the quality of the liquid crystal display (LCD) and the research and development technology, and the types thereof may roughly include TFT, TFD, UFB, STN, and Several kinds of OLEDs.
  • the camera 2 is used for acquiring a photo analog signal or a photo digital signal of a background environment of a user's viewing angle range.
  • the interaction of data with other module units in the body of the information terminal can be implemented by the first communication device 6 as shown in FIG. 2.
  • the lens optical axis of the camera 2 needs a vertical display setting or a substantially vertical display, and is set within a range of ⁇ 30° of the vertical axis of the display optical axis. This is because the optical axis of the user's eye when the user is using the information terminal is usually perpendicular or substantially perpendicular to the display screen.
  • the purpose of this setting is to ensure that the sampling range of the camera 2 is as close as possible to the user's visual range.
  • the setting of the camera 2 can be set according to the actual usage of the user.
  • the camera 2 may be integrally provided on the information terminal, or may be provided separately from the body of the information terminal.
  • the distance between the user's eye position and the information terminal is usually about 30 cm. Since the information terminal is a portable product, it is displaced by the activity of the person, and usually their background is empty. In this case, the proper placement position of the camera 2 is integrally provided on the information terminal. Therefore, in the case where the image capturing angles of the camera 2 and the user's eyes are set to be the same, the background obtained by the camera 2 integrally disposed on the information terminal is similar to the effect of observing the background within the user's viewing angle range.
  • the space behind the screen is small, the background is close to the back of the screen, and the distance between the user's eye position and the screen is relatively long, generally more than 2m. Even further.
  • the camera 2 is suitably placed at the camera 2 as an external camera, placed near the user's head, and positioned close to the user's eyes. Therefore, in the case where the image capturing angles of the camera 2 and the user's eyes are set to be the same, the background environment illumination state obtained by the camera 2 disposed at a position close to the user's eyes is more scientific and accurate.
  • the distance between the user's eye position and the computer screen is approximately 50 cm.
  • the size of the space behind the computer screen depends on the actual situation.
  • the computer screen is far away from the background, the back space is wide, and the camera 2 is suitable for placement around the desktop computer; when the computer screen is close to the background At the time, the back space is small, and the camera 2 is suitable for being placed in a position close to the eyes of the user. Therefore, it is particularly important to properly position the camera 2 according to the actual situation.
  • the camera 2 can be a CCD or a CMOS sensor.
  • These two types of image sensors are currently widely used, both of which use photodiodes for photoelectric conversion to acquire image information, and the main difference is that the data is transmitted in different ways.
  • the charge data of each pixel in each row of the CCD sensor is sequentially transferred to the next pixel, outputted by the bottommost portion, and amplified by the amplifier at the edge of the sensor; and in the CMOS sensor, each pixel It will be adjacent to an amplifier and A/D conversion circuit, and output data in a manner similar to a memory circuit.
  • the photo detecting unit 3 is disposed in the information terminal, and is connected to the camera 2 by wire connection as shown in FIG. 1 or wirelessly via the first communication device 6 as shown in FIG.
  • the photo detecting unit 3 converts the photo analog signal or the photo digital signal acquired by the camera 2 into digitized photo data.
  • the photo gradation analyzing unit 4 is connected to the photo detecting unit 3, performs gradation analysis on the photo data transmitted by the photo detecting unit 3, generates a state parameter of the background environment of the user's viewing angle range, and transmits it to the display parameter adjusting unit 5 And a backlight parameter adjustment unit 9.
  • the information terminal further includes a photo color analysis unit that performs color analysis on the photo data and calculates a color value according to the color sensitivity function.
  • the color sensitivity function is a piecewise function related to color clutter. For the acquired image, the higher the color clutter, the closer the color value is to the real value.
  • the luminance value and the color value also have a fixed correspondence relationship, and the corresponding relationship is obtained by the automatic calculation processing of the information terminal. Therefore, the state parameters of the background environment of the user's viewing angle range can be generated in combination with the results of the color value and the grayscale analysis and the setting parameters of the camera.
  • the photo gradation analysis unit 4 may be specifically a module having a data processing function, such as a processing chip or a specific logic circuit unit, and determining the illumination state of the background environment by gradation analysis of the photo data, thereby generating a corresponding state parameter.
  • a data processing function such as a processing chip or a specific logic circuit unit
  • the background illumination parameter adjustment unit 9 is connected to the photo gradation analysis unit 4 and the output unit 7, respectively, wherein the output unit 7 is wirelessly connected to an external external illumination device by wire or by the second communication device 8.
  • the output unit 7 outputs the prepared signal to the external lighting device for adjusting the lighting parameters of the external lighting device such that the lighting state of the background environment reaches the preset parameter. That is, by changing the display parameters of the external lighting device, the illumination of the background environment is changed, so that the light of the background environment reaches the required preset parameters.
  • the preset parameter here is not necessarily a fixed parameter, but may be a target parameter according to the actual situation of the light of the current background environment.
  • the illumination parameters of the above external illumination device include at least brightness and/or color temperature.
  • the display parameter adjustment unit 5 is connected to the photo gradation analysis unit 4 and the display screen 1, respectively.
  • the display parameter adjusting unit 5 adjusts the display parameter of the display screen according to the state parameter of the background environment based on the preset correspondence relationship, so that the display parameter of the display screen and the illumination state of the background environment of the user's viewing angle range after the background illumination light is adjusted match.
  • the display parameters of the above display screen include at least brightness and/or color temperature.
  • the display parameters of the display screen may be corrected according to the lens shooting parameters, thereby correcting the deviation caused by the sampling, so that the display screen is based on the corrected display parameters and the actual user perspective.
  • the illumination state of the range of background environments matches.
  • the parameter control of the display screen is the actual display output of the control.
  • the difference between the lens model of different manufacturers for image capturing and the self-compensation of the image are considered.
  • the method includes: determining an absolute value of the target brightness according to the state parameter of the background environment and the preset correspondence relationship; determining a percentage of the display brightness of the display screen according to the absolute value of the target brightness; and outputting a display that matches the absolute value of the target brightness according to the display brightness percentage of the display screen The actual display brightness; wherein the actual display brightness of the display and the absolute value of the maximum brightness of the display are pre-calibrated by the percentage of display brightness.
  • the photo-detection unit 3 generates an anti-compensation parameter according to the model parameter and/or the self-compensation parameter of the camera, and converts the photo analog signal or the photo digital signal acquired by the camera into digitized photo data based on the anti-compensation parameter.
  • the information terminal of the present invention further includes an image capturing device (not shown). Because there may be some deviation between the range of the captured image and the range of the human visual field during image acquisition, the range of the human visual field is usually larger than the range of an image captured by the camera. Therefore, it is necessary to combine
  • the image capturing device is configured to perform positioning on the collected image to enable image stitching so that the stitched image is consistent with the image of the human eye visual field.
  • the acquiring image positioning device is specifically configured to locate each frame image collected by the camera, and perform fusion fusion processing on the multi-frame image collected by the camera according to the positioning, thereby obtaining a photo analog signal or a photo digital signal of a background environment of the user's viewing angle range. .
  • the acquisition image positioning device can be specifically implemented by using a gyroscope.
  • the image is positioned according to the gyroscope, and the multi-frame image acquired in a certain period of time (for example, 24 images are captured in one second) is image-spliced according to the positioning parameters of the gyroscope.
  • the work of image stitching can be done by the photo inspection unit.
  • the information terminal can be moved within a certain range, so that the gyroscope senses the position change, and starts the shooting of the multi-frame image by the camera.
  • blind spot analysis is performed on the acquired photo analog signal or photo digital signal, and the blind spot area obtained by the analysis is simulated and predicted.
  • the resulting digitized photo data is thus generated in conjunction with the simulated prediction results and the photo analog signal or photo digital signal.
  • the ambient light condition of the background environment has a preset correspondence with the display parameters of the display screen, and the data of the preset correspondence relationship may be stored locally in the information terminal or stored in the cloud.
  • the local storage may be stored in a memory (not shown) of the information terminal.
  • the memory can be a ROM chip or any other type of solid state non-volatile semiconductor memory.
  • the manner of writing to the memory can be implemented by a wired input method, or by an interface connected to the memory, such as an infrared interface, a Bluetooth interface, a USB interface, or the like.
  • the correspondence relationship of the presets may include a correspondence relationship between state parameters for adjusting brightness obtained by the gray scale analysis result, and a correspondence relationship between state parameters for adjusting the color temperature by the gray scale analysis result.
  • the state parameter obtained by adjusting the brightness by the gradation analysis result it is possible to calculate the sample gradation analysis result and the corresponding sample state parameter for setting the adjustment brightness by taking a plurality of photos under different ambient light.
  • a black and white camera to take a picture of the background environment of the user's viewing angle, obtain a black and white photo, take the image data of this black and white photo, and divide it into MxN blocks, for example, assuming 10x10 blocks, and determine the quantization parameters of each block. For example, set black to 0 and white to 1. The number of levels in each block is counted and accumulated, and divided by the total number of stages 10x10, which is the brightness ratio of the black and white photo. For example, in the above example, 50 blocks are black and 50 blocks are white, and the brightness ratio is 50%. Therefore, the brightness ratio obtained by the black and white analysis combined with the setting parameters of the black and white camera can generate the background environment brightness state parameter of the user's viewing angle range.
  • a black and white camera to take a picture of the background environment of the user's viewing angle, obtain a black and white photo, take the image data of this black and white photo, and divide it into MxN blocks, for example, assuming 10x10 blocks, and the gray value of each block area is Quantization is usually divided into 256 levels from 0 to 255, where 0 is the darkest (all black) and 255 is the brightest (all white). Analyze and count the number of levels of gray values in each block and accumulate them, and divide by the total number of stages 10x10x256 to obtain the brightness ratio of the black and white photo. Therefore, the brightness ratio obtained by the gray scale analysis combined with the setting parameters of the black and white camera can generate the background environment brightness state parameter of the user perspective range.
  • the gray level can also be divided into a smaller number of levels, such as 8 levels, etc., to perform regional brightness statistics and calculations.
  • a color camera to take a picture of the background environment of the user's viewing angle, obtain a color photo, take the image data of this color photo, and decompose three three colors of red, green and blue by RGB three primary color decomposition function.
  • the photo of the component converts the mean of the R/G/B channel components of the three photos into a gray value in a weighted correspondence relationship.
  • take the image data of the red component of this photo divide the photo into MxN blocks, for example, assuming 10x10 blocks, and quantize the gray value of each block, usually divided into 0 to 255 total 256 levels, of which 0 The darkest (all black), the 255 is the brightest (all white).
  • the number of levels of the gray value of each block is counted and accumulated, and divided by the total number of stages 10x10x256, which is the brightness ratio of the red component photo.
  • the brightness ratio of the green component photo and the blue component photo can be analyzed and calculated.
  • the brightness ratio of the three photos is superimposed to obtain the brightness ratio of the color photo. Therefore, the brightness ratio obtained by the gradation analysis combined with the setting parameters of the color camera can generate the background environment brightness state parameter of the user's viewing angle range.
  • the photos of the three color components decomposed by the color camera are synthesized, and the R/G/B channel components remaining after each region is synthesized as a standard effective white pixel point are analyzed and analyzed. If the red component is large, the photo is warmer. Hue; blue has more weight and the photo is colder. Therefore, by analyzing the component ratio of the R/G/B color, the color temperature state parameter of the specific color photograph can be obtained. Therefore, the brightness and color temperature state parameters obtained by the gray level analysis can be combined with the setting parameters of the color camera to generate the background environment brightness and color temperature state parameters of the user's viewing angle range.
  • the display parameter adjustment unit 5 includes first adjustment means (not shown) for changing the preset correspondence to match the display parameters of the display screen and the illumination state of the background environment of the user's viewing angle range.
  • the first adjusting device may be a hardware module disposed in the information terminal or a software module for controlling the display screen.
  • the background illumination parameter adjustment unit 9 includes a second adjustment device (not shown) for adjusting the display parameters of the external external illumination device such that the illumination state of the background environment reaches the preset parameters.
  • the second adjustment device may equally be a hardware module disposed within the information terminal or a software module for controlling the external illumination device.
  • External lighting is used to illuminate the background environment of the user's viewing angle range.
  • a preferred external lighting device is disposed opposite the display screen 1.
  • the backlight can be disposed on the information terminal or can be separated from the body setting of the information terminal.
  • each information terminal 10 can be connected to the cloud 30 through the network 20 to match the display parameters of the display screen 1 with the illumination state of the background environment of the user's viewing angle range.
  • the parameters of the preset correspondence are transmitted to the cloud 30 for synchronization.
  • the cloud 30 can also synchronize the preset correspondence parameters of the display parameter of the display 1 with the state of the background environment under the user's viewing angle range.
  • the cloud saves the user habit list corresponding to the user, and the user habit list includes the user ID corresponding to the user, the display parameter of the display screen, the illumination parameter of the backlight, the illumination status, and the illumination of the background environment of the display parameter and the user's viewing angle range.
  • the cloud can analyze the user ID of the data, the display parameter of the display screen, the illumination parameter of the backlight, the illumination status, and the preset that matches the illumination state of the background environment of the user's viewing angle range. Corresponding to the parameters of the relationship, thereby generating a user habit record, recorded in the user habit list. There are many methods for generating the corresponding relationship, and the method may be generated according to user statistical analysis, a predetermined algorithm, a predetermined model, and the like. By making a record of each user's adjustment, a very complete user habit list can be formed, so that when the terminal device used by the user is in a certain illumination state, the display screen suitable for the user can be directly obtained based on the list. Display parameters.
  • the cloud 30 can perform big data statistics and analysis on the preset correspondence data to provide data for the plurality of information terminals 10 accessing the cloud 30.
  • the cloud 30 can perform big data analysis on the parameters of the preset correspondence relationship of the backlights of the display screens of the plurality of information terminals 10, and generate preset corresponding relationship parameters adapted to the public and the niche for each information terminal 10 to pass through the cloud 30. Synchronizing the preset parameters corresponding to the lighting state of the background environment of the display area of the display screen and the display area of the user's viewing angle.
  • Each information terminal 10 also synchronizes the display parameters of the popular or niche universal display screens required by the cloud 30 with the background angle of the user's viewing angle range display screen, that is, the preset corresponding relationship parameters of the illumination state of the background environment. .
  • the user's age, gender, occupation, etc. can also be collected when collecting user data, and different weights are collected for different categories of people.
  • the display parameter of the 20-30 year old user, the illumination state, and the parameter of the preset correspondence relationship whose display parameter matches the illumination state of the background environment of the user's viewing angle range may be weighted by 70% for 40 years old.
  • the above user's data is weighted by 30% and then calculated. The above data is only an example.
  • the above process is an adaptive adjustment process between the cloud data based display parameters and the background ambient lighting state, and the lighting parameters of the external lighting device.
  • the first adjusting device and the second adjusting device may respectively implement a process of performing corresponding parameter adjustment by the user according to his own personalized requirement after the adaptive adjustment is completed.
  • the following takes the display parameter of the display screen and the personalized adjustment of the lighting state of the background environment as an example.
  • the individual adjustment method for controlling the illumination parameters of the external lighting device can also be referred to this example.
  • the user adjusts the display parameter of the display screen by the first adjustment device according to the perception of the background illumination and the display display parameter.
  • the information terminal 10 transmits the modified display parameter of the display screen and the illumination state parameter of the background environment of the user's viewing angle range to the cloud 30, and loads the user recorded in the information terminal 10 in the upload data.
  • the information such as the gender, age, and occupation of the user, is used to facilitate the classification and statistics of the data, and the cloud 30, according to the received data, associates the previously recorded user with the preset correspondence of the display parameters under the illumination state parameter of the background environment. Make changes and generate a correction correspondence.
  • the cloud computing corrects the degree of deviation and the number of deviations between the correspondence relationship and the preset correspondence relationship, and performs weighting processing on the corrected correspondence relationship and the preset correspondence relationship that reach the first deviation number and is smaller than the first deviation threshold value. Thereby generating a universal preset correspondence of the first range;
  • the modified correspondence relationship that reaches the second deviation number and is greater than the first deviation threshold and smaller than the second deviation threshold is weighted with the preset correspondence, thereby generating a trait prefix correspondence of the second range.
  • the data whose deviation degree is smaller than the first deviation threshold and the number of samples reaches the first deviation amount is used to calculate the universal preset correspondence of the first range; A range and less than the second range, the number of samples reaching the second deviation amount of data for calculating the second range of trait preset correspondences.
  • the cloud may also consider giving different data correction weight coefficients to different user attributes when generating a universal preset correspondence corresponding to the first range and adapting to the second range of the trait preset correspondence, and obtaining the first weighting coefficient by normalization processing.
  • the method includes: determining, by the cloud, the user attribute corresponding to the modified correspondence; determining a data correction weight coefficient according to the user attribute; performing data analysis processing on the parameter of the modified correspondence according to the data correction weight coefficient, and obtaining a normalized correction correspondence parameter;
  • the preset correspondence between the display parameter of the display screen and the illumination state of the background environment of the user's viewing angle range, and the normalized correction corresponding parameter are used for data analysis to generate a universal preset correspondence corresponding to the first range. And a trait preset relationship adapted to the second range.
  • the user's personalized parameter adjustment also changes the correspondence of the universal presets in the cloud.
  • the correction of the display parameter correspondence relationship of a certain user in a certain background environment illumination state is equivalent to the statistical data corresponding to the universal preset correspondence relationship of the big data statistics in the background environment illumination state.
  • the pervasive calculation at this time needs to consider the parameters of the preset correspondence relationship from a plurality of information terminals and the parameters of the correction correspondence relationship of the information terminal from the personalized user to perform data analysis, thereby generating a new universal preset. Correspondence relationship and new trait matching preferences adapted to the niche.
  • the universal preset correspondence will be dynamically adjusted and tend to be a reasonable range that the public can accept.
  • the dynamic adjustment of the trait-preset correspondence for a particular niche will also change correspondingly with the user-customized display data.
  • the corresponding relationship with the universal preset is because the trait preset relationship is only for certain specific groups, such as women aged 20-30, children under 16 in Beijing, etc.
  • the modified data sampling range is only for the specific group, so the adjustment of the correspondence relationship with the ubiquitous preset is based on different data bases. Therefore, based on the user's personalized parameter correction, the parameter changes of the correspondence between the universal preset correspondence and the trait preset must be different.
  • the first adjusting device can identify the adjustment command input of the user. For example, when the first adjustment is performed, when the user inputs the adjustment command through the first adjusting device, the first adjusting device can parse the input into a requesting universal match. To obtain universal preset parameters through the cloud.
  • the user inputs the adjustment command within a certain period of time after the pervasive configuration is completed, it can be considered as the continuous operation of the user.
  • the user inputs the instruction for increasing the brightness three times in one second, which can be recognized as the function of the instruction. It is to increase the brightness by three steps.
  • a method of personalizing the lighting parameters that control the external lighting device may also include setting a switching threshold of the external lighting device. By collecting the environmental parameters, it is determined whether the switching threshold is reached. For example, when the ambient brightness is lower than the lower limit of the threshold range, an open signal is generated, the external lighting device is controlled to be turned on, and the above-described process of obtaining the universal preset parameter for the illumination parameter of the external lighting device and the display display parameter is performed. When the ambient brightness is above the upper limit of the threshold range, an external lighting device shutdown signal is generated, the external lighting device is controlled to be turned off, and the process of re-executing the universal preset parameter acquisition of the display screen parameters is matched.
  • the backlight when the ambient brightness is lower than the lower limit of the threshold range, the backlight is automatically turned on, and based on the preset correspondence of the background light (the original ambient light) and the compensation light (the light of the backlight), according to the background environment
  • the status parameter causes the backlight to output a corresponding illumination parameter such that the display parameter of the display matches the illumination state of the adjusted background environment within the user's viewing angle range.
  • the compensated ambient illumination is continuously detected by the information terminal.
  • the compensation light emitted by the background illumination becomes better as the ambient illumination parameter becomes better. Attenuation is performed, and when the upper limit of the threshold range of ambient brightness is reached, the compensated illumination of the backlight is turned off.
  • the information terminal provided by the embodiment of the present invention can sample the illumination of the background environment based on the range of the user's perspective, and generate a control signal according to the sampled state parameter of the background environment to control the external lighting device used for illumination of the background environment, and At the same time, the brightness and color temperature of the display screen are adjusted accordingly, so that the brightness and color temperature of the display screen match the illumination state of the background environment of the user's viewing angle range, so that the screen display conforms to the visual perception of the user, thereby effectively reducing the user's Visual fatigue during use protects the user's visual health.
  • the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both.
  • the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

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Abstract

本发明实施例涉及一种信息终端，包括显示屏、摄像头、照片检拍单元、照片灰度分析单元、输出单元、显示屏参数调节单元和背景照明灯参数调节单元；照片检拍单元将摄像头获取的照片模拟信号转换为数字化的照片数据；照片灰度分析单元对照片数据进行灰度分析生成用户视角范围的背景环境的状态参数；背景照明灯参数调节单元根据状态参数生成控制信号，通过输出单元输出给外部照明设备，用以对外部照明设备的照明参数进行调节，使得背景环境的照明状态达到预置参数；显示屏参数调节单元基于预置对应关系，根据状态参数对显示屏的显示参数进行调节，使显示屏的显示参数与用户视角范围内背景环境的照明状态相匹配。

Description

一种信息终端
本申请要求于2017年6月2日提交中国专利局、申请号为201710406798.3、发明名称为“一种信息终端”的中国专利申请的优先权。
技术领域
本发明涉及照明技术领域，尤其涉及一种信息终端。
背景技术
在手机、平板等互联网电子产品发展方兴未艾的今天，越来越多的人因为长时间盯着手机等视频终端，造成人眼视觉疲劳，从而导致视力下降，影响到视觉健康。
目前，智能手机大多自带的自动亮度调整模式，通过位置设置于听筒附近的亮度传感器识别周围的光线环境进行周围环境的亮度检测，然后根据预置算法进行屏幕显示亮度的计算。
但是用户在使用中往往还是会遇到这种自动调节方式下屏幕亮度的显示并不能符合自己的视觉感知的情形，这是由于通过亮度传感器进行周围环境亮度检测与用户视角之间的误差，以及仅对于亮度进行调控的局限性造成的。同时，对于周围环境亮度相对较暗的场景，即便是进行显示屏的亮度的调整，也依然无法完全适配周围环境的亮度并同时兼顾用户的正常可视化需求。对此目前业内还没有一个很好的方式来解决上述问题。
发明内容
本发明的目的是提供一种信息终端，能够基于用户视角范围对背景环境的照明进行采样，并根据采样得到的背景环境的状态参数生成控制信号对用 于背景环境的照明的外部照明设备进行控制，并同时相应对显示屏的亮度、色温进行调节，使显示屏的亮度、色温与用户视角范围的背景环境的照明状态相匹配，从而使得屏幕显示与使用者的视觉感知相符，从而有效减使用者在使用过程中的视觉疲劳，保护使用者的视觉健康。
为实现上述目的，本发明实施例提供了一种信息终端，包括
显示屏、第一通信装置和第二通信装置，其特征在于，所述信息终端还包括：摄像头、照片检拍单元、照片灰度分析单元、输出单元、显示屏参数调节单元和背景照明灯参数调节单元；
外部照明设备对用户视角范围的背景环境进行照明；
所述摄像头用于获取用户视角范围的背景环境的照片模拟信号或照片数字信号；
所述照片检拍单元通过所述第一通信装置与所述摄像头相连接，将所述摄像头获取的所述照片模拟信号或照片数字信号转换为数字化的照片数据；
所述照片灰度分析单元对所述照片数据进行灰度分析，并根据摄像头的设置参数生成所述用户视角范围的背景环境的状态参数，并分别发送到所述背景照明灯参数调节单元和所述显示屏参数调节单元；
所述背景照明灯参数调节单元通过所述第二通信装置与所述背景照明灯相连接，根据所述状态参数生成控制信号，发送给所述输出单元；
所述输出单元将所述控制信号输出给所述外部照明设备，用以对所述外部照明设备的照明参数进行调节，使得所述背景环境的照明状态达到预置参数；其中所述照明参数至少包括亮度和/或色温；
所述显示屏参数调节单元基于预置对应关系，根据所述背景环境的状态参数对所述显示屏的显示参数进行调节，使所述显示屏的显示参数与所述用户视角范围内所述调节后的背景环境的照明状态相匹配；其中所述显示参数至少包括亮度和/或色温。
优选的，所述显示屏参数调节单元包括：用于调节所述显示屏的显示参 数的第一调整装置；在所述显示参数调节后，将所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态的预置对应关系改变,生成第一修正对应关系；其中，所述第一调整装置具体为：
设置于所述信息终端内的硬件模块，或者用于控制所述显示屏的软件模块。
优选的，所述背景照明灯参数调节单元包括：用于调节所述外部照明设备的照明参数的第二调整装置；在所述照明参数调节后，将所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态的预置对应关系改变,生成第二修正对应关系；其中，所述第二调整装置具体为：
设置于所述信息终端内的硬件模块，或者用于控制所述显示屏的软件模块。
进一步优选的，所述信息终端通过网络与云端连接，将所述背景环境的状态参数传输到云端进行同步，并存储为状态预置参数。
进一步优选的，所述云端将来自多个所述信息终端的背景环境的预置对应关系和所述第一修正对应关系的参数进行数据分析，生成适应于第一范围的普适状态预置参数以及适应于第二范围的特质状态预置参数，用以各所述信息终端通过所述云端获取与所述背景环境相应的普适状态预置参数或特质状态预置参数。
优选的，所述信息终端通过网络与云端连接，将用以所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态相匹配的预置对应关系的参数传输到所述云端，进行同步；所述云端保存有该用户所对应的用户习惯列表，所述用户习惯列表包括该用户对应的用户ID、显示屏的显示参数、照明状态、以及所述显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系。
进一步优选的，所述云端根据所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态相匹配的预置对应关系，和所述第二修正对应关系 的参数进行数据分析，生成适应于第一范围的普适预置对应关系参数以及适应于第二范围的特质预置对应关系参数，用以各个所述信息终端通过所述云端获取用于匹配所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态的所述普适预置对应关系参数或所述特质预置对应关系参数。
优选的，所述云端的数据分析具体为：
所述云端计算所述修正对应关系与预置对应关系的偏离程度和偏离数量，将达到第一偏离数量并且小于第一偏离阈值的修正对应关系与所述预置对应关系进行加权处理，从而生成第一范围的普适预置对应关系参数；
将达到第二偏离数量并且大于第一偏离阈值且小于第二偏离阈值的修正对应关系与所述预置对应关系进行加权处理，从而生成第二范围的特质预置对应关系参数。
优选的，所述背景环境的状态参数包括亮度参数和/或色温参数。
优选的，所述根据所述背景环境的状态参数对所述显示屏的显示参数进行调节具体包括：
根据所述背景环境的状态参数和所述预置对应关系确定目标亮度绝对值；
根据所述目标亮度绝对值确定所述显示屏的显示亮度百分比；
根据所述显示屏的显示亮度百分比输出与所述目标亮度绝对值相符的显示屏实际显示亮度；其中，所述显示屏实际显示亮度与所述显示屏的最大亮度绝对值之间通过显示亮度百分比进行预先标定。
优选的，所述信息终端还包括采集图像定位装置；
所述采集图像定位装置对所述摄像头采集到的每帧图像进行定位，根据所述定位将所述摄像头采集到的多帧图像进行融合拼接处理，得到用户视角范围的背景环境的照片模拟信号或照片数字信号。
进一步优选的，所述照片检拍单元还用于对所述照片模拟信号或照片数字信号进行盲点区域分析，并对分析得到的盲点区域进行模拟预测，从而结 合模拟预测结果和所述照片模拟信号或照片数字信号生成所述数字化的照片数据。
优选的，所述信息终端还包括照片色彩分析单元，对所述照片数据进行色彩分析，根据色彩敏感度函数计算色彩值；所述色彩敏感度函数为与色彩杂乱度相关的分段函数；
结合所述色彩值和所述灰度分析的结果以及所述摄像头的设置参数生成所述用户视角范围的背景环境的状态参数。
本发明实施例提供的信息终端，能够基于用户视角范围对背景环境的照明进行采样，并根据采样得到的背景环境的状态参数生成控制信号对用于背景环境的照明的外部照明设备进行控制，并同时相应对显示屏的亮度、色温进行调节，使显示屏的亮度、色温与用户视角范围的背景环境的照明状态相匹配，从而使得屏幕显示与使用者的视觉感知相符，从而有效减使用者在使用过程中的视觉疲劳，保护使用者的视觉健康。
附图说明
图1为本发明实施例提供的一种信息终端的结构示意图；
图2为本发明实施例提供的另一种信息终端的结构示意图；
图3为本发明实施例提供的具有多个信息终端的系统结构图。
具体实施方式
下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。
为了更好的理解本发明所提出的信息终端及其工作方式，首先对外界环境光线对于用户观看显示屏时的视觉影响进行说明。
在用户观看显示屏时，背景环境照明状态对显示屏的视觉效果影响很大，人眼在观看任何物体时，能根据物体的亮度调节瞳孔的大小来适应，亮度越高瞳孔调得越小，亮度越低瞳孔调得越大。我们通常观看显示屏的视觉范围 只占我们眼睛的视觉范围的10％以内。
比如，在使用一个5寸显示屏的手机时，手机放在距离眼睛30cm左右的位置，我们眼睛的视觉立体角大约120度，眼睛在30cm处的视觉范围大约为8482cm 2，而5寸显示屏的手机的面积不大于100cm 2，手机显示屏占人眼的视觉范围不到2％。再比如,在使用一个20寸显示屏的电脑时，显示屏放在距离眼睛50cm左右的位置，此时眼睛在50cm处的视觉范围大约为23562cm 2，而20寸电脑显示屏的面积不大于1200cm 2，电脑显示屏占人眼的视觉范围不到6％。所以眼睛的瞳孔大小主要受显示屏的背景环境照明状态的影响。为了让用户在使用显示屏时更加舒适，显示屏的亮度必须根据瞳孔的大小来调节，也即根据显示屏的背景环境照明状态来调节。
本发明的信息终端中显示屏亮度的调节，尤其适用于较暗环境下使用。
因此，在不同的外接环境下，信息终端的显示屏如果能以与外接环境，尤其是用户视角的环境相符的亮暗、色温进行调整显示，对用户的视觉健康就能起到一定的保护作用。
本发明所述的信息终端包括但不限于智能手机和平板电脑(Personal Digital Assistant，PAD)。
图1和图2分别为本实施例提供的信息终端的两种实现方式的示意图，如图所示，本实施例提供的信息终端包括：显示屏1、摄像头2、照片检拍单元3、照片灰度分析单元4、输出单元7、显示屏参数调节单元5以及背景照明灯参数调节单元9；信息终端与外部照明设备相接，通过外部照明设备对用户视角范围的背景环境进行照明。
显示屏1用于对信息终端的输出信息进行图像显示。以智能手机为例，可以采用的显示屏1有多种，具体因液晶显示器(Liquid Crystal Display，LCD)品质和研发技术不同而有所差异，其种类大致可以包括TFT、TFD、UFB、STN和OLED几种。
摄像头2，用于获取用户视角范围的背景环境的照片模拟信号或照片数字 信号。在具体的实现中，可以如图2所示,通过第一通信装置6来实现与信息终端的本体内其他模块单元之间的数据的交互。为保证摄像头2所采集到的图像于用户视角范围相一致，摄像头2的镜头光轴需要垂直显示屏设置或大致垂直显示屏，在显示屏光轴垂线的±30°范围内设置。这是因为，用户在使用信息终端时用户眼部的光轴通常是与显示屏垂直或基本垂直的。当然，这样设置的目的是为了尽量保证摄像头2的采样范围与用户视觉范围相一致。具体的应用中，摄像头2的设置可以根据用户实际使用情况进行设置。特别是关于摄像头2的安放位置，摄像头2可以一体设置于信息终端上，也可以是分离于信息终端的本体设置。
在使用智能手机或平板电脑这种信息终端时，通常用户眼部位置与信息终端之间的距离大约为30cm。由于这种信息终端是随身产品，会伴随人的活动产生位移，通常它们的背景都是空阔的，这种情形下摄像头2的合适安放位置是一体设置于信息终端上。因此在将摄像头2与用户眼部的图像采集角度设置为一致的情况下，摄像头2一体设置于信息终端上所获取的背景与用户视角范围内观察到背景的效果是相近的。
用户观看悬靠在墙壁上的电视机屏幕或者投影仪屏幕时，屏幕背后空间范围很小，背景物紧靠着屏幕背面，而用户眼部位置与屏幕之间的距离比较远，一般在2m以上甚至更远。这种情形下摄像头2合适的安放位置是将摄像头2作为外置摄像头，设置于用户头部附近，位置接近用户眼部。因此在将摄像头2与用户眼部的图像采集角度设置为一致的情况下，摄像头2安置于用户眼部相近的位置所获取的背景环境照明状态更加科学准确。
在使用台式电脑这种信息终端时，用户眼部位置与电脑屏幕之间的距离大约为50cm。但是电脑屏幕的背后空间大小要依实际情况而定，当电脑屏幕距离背景物比较远时，背后空间范围空阔，此时摄像头2适合安置在台式电脑周围；而当电脑屏幕紧靠着背景物时，背后空间范围很小，此时摄像头2适合安置于用户眼部相近的位置。因此依照实际情况合适安放摄像头2的位 置，显得尤为重要。
具体的，摄像头2可以为CCD或CMOS传感器。这两种是当前被普遍采用的两种图像传感器，两者都是利用感光二极管(photodiode)进行光电转换，来采集图像信息，而其主要差异是数据传送的方式不同。CCD传感器中每一行中每一个象素的电荷数据都会依次传送到下一个象素中，由最底端部分输出，再经由传感器边缘的放大器进行放大输出；而在CMOS传感器中，每个象素都会邻接一个放大器及A/D转换电路，用类似内存电路的方式将数据输出。
照片检拍单元3设置于信息终端内，与摄像头2之间如图1所示通过有线连接，或者如图2所示通过第一通信装置6以无线方式连接。照片检拍单元3将摄像头2获取的照片模拟信号或照片数字信号转换为数字化的照片数据。
照片灰度分析单元4与照片检拍单元3相连接，对照片检拍单元3传送的照片数据进行灰度分析，生成用户视角范围的背景环境的状态参数，并发送到显示屏参数调节单元5以及背景照明灯参数调节单元9。
在更优选的例子中，信息终端还包括照片色彩分析单元，对照片数据进行色彩分析，根据色彩敏感度函数计算色彩值。
色彩敏感度函数为与色彩杂乱度相关的分段函数，对于采集到的图像，色彩杂乱度越高，色彩值越接近真实值。在图像处理中，亮度值和色彩值也有固定的对应关系，这一对应关系是通过信息终端自动计算处理得到的。因此，可以结合色彩值和灰度分析的结果以及摄像头的设置参数生成用户视角范围的背景环境的状态参数。
照片灰度分析单元4可以具体为具有数据处理功能的模块，比如处理芯片或特定的逻辑电路单元，通过对照片数据的灰度分析，来确定背景环境的照明状态，从而生成相应的状态参数。
背景照明灯参数调节单元9与照片灰度分析单元4和输出单元7分别连接，其中与输出单元7通过有线或通过第二通信装置8与外部的外部照明设 备无线连接。输出单元7将所制信号输出给外部照明设备，用以对外部照明设备的照明参数进行调节，使得背景环境的照明状态达到预置参数。即实现了通过改变外部照明设备的显示参数，对背景环境的照明进行改变，使得背景环境的光线达到所需要的预置参数。这里的预置参数并不一定是一个固定的参数，而可以是根据当前背景环境的光线实际情况而定的一个目标参数。上述外部照明设备的照明参数至少包括亮度和/或色温。
显示屏参数调节单元5与照片灰度分析单元4和显示屏1分别连接。显示屏参数调节单元5基于预置对应关系，根据背景环境的状态参数对显示屏的显示参数进行调节，使显示屏的显示参数与背景照明光调整后的用户视角范围的背景环境的照明状态相匹配。上述显示屏的显示参数至少包括亮度和/或色温。
需要特别说明的是，对于拍摄时摄像头镜头设置参数的不同，光圈、快门速度、焦距等参数都会对背景环境的采样图像产生一定的影响，有可能会导致背景的采样图像与实际还是存在一定差异。
因此在优选的方案中，可以基于预设的算法，根据镜头拍摄参数，对显示屏的显示参数进行修正计算，从而修正采样所造成的偏差，使得显示屏根据修正后的显示参数与实际用户视角范围的背景环境的照明状态相匹配。
在本实施例中，对于显示屏的参数控制，是控制的实际的显示输出，在此过程中考虑了不同厂家的镜头型号对于图像拍摄的差异性以及对图像的自补偿的情况。
以亮度控制为例，控制的实际显示的亮度。我们采用了控制最大亮度百分比的方法，来对实际的显示亮度进行控制。具体包括：根据背景环境的状态参数和预置对应关系确定目标亮度绝对值；根据目标亮度绝对值确定显示屏的显示亮度百分比；根据显示屏的显示亮度百分比输出与目标亮度绝对值相符的显示屏实际显示亮度；其中，显示屏实际显示亮度与显示屏的最大亮度绝对值之间通过显示亮度百分比进行预先标定。
此外，还通过照片检拍单元3根据摄像头的型号参数和/或自补偿参数生成反补偿参数，基于反补偿参数将摄像头获取的所述照片模拟信号或照片数字信号转换为数字化的照片数据。
在优选的方案中，为保证所得到的是用户视角范围的背景环境的状态参数，本发明的信息终端还包括有采集图像定位装置(图中未示出)。因为在图像采集时，采集到的图像范围与人眼视觉场的范围之间可能会存在一定偏差，人眼视觉场的范围通常会大于通过摄像头采集到的一幅图像的范围，因此，需要结合采集图像定位装置进行对采集到的图像进行定位从而能够实现图像拼接，使得拼接后的图像与人眼视觉场的图像一致。
采集图像定位装置具体用于对摄像头采集到的每帧图像进行定位，根据定位将所述摄像头采集到的多帧图像进行融合拼接处理，得到用户视角范围的背景环境的照片模拟信号或照片数字信号。
采集图像定位装置可以具体采用陀螺仪来实现。在图像采集过程中根据陀螺仪对图像进行定位，并对一定时间内采集的多帧图像(比如1秒内拍摄24张图像)根据陀螺仪的定位参数进行图像拼接。图像拼接的工作可以由照片检拍单元完成。
用户在使用信息终端时，可以在一定范围内移动信息终端，从而陀螺仪感知到位置变化，启动摄像头对多帧图像的拍摄。
在进行图像拼接时，还要考虑到因为信息终端的移动带来的图形畸变，需要对畸变进行修正，得到平面图像。
此外，即使采用这种方式，在拼接后的图像中可能也存在盲点区域，此时需要对采集得到的照片模拟信号或照片数字信号进行盲点区域分析，并对分析得到的盲点区域进行模拟预测，从而结合模拟预测结果和所述照片模拟信号或照片数字信号生成最终的数字化的照片数据。
在本实施例中，背景环境的环境光条件与显示屏的显示参数之具有预置的对应关系，该预置的对应关系的数据可以存储在信息终端本地或者存储在 云端。
具体的，在本地的存储可以是存储在信息终端的存储器(图中未示出)中。存储器可以是ROM芯片或任何其他类型的固态非易失性半导体存储器。对存储器中写入的方式可以通过有线的输入方式来实现，还可以通过连接于存储器的接口，例如红外接口、蓝牙接口、USB接口等来实现。
该预置的对应关系中可以包括通过灰度分析结果得到的调节亮度的状态参数的对应关系，以及通过灰度分析结果得到调节色温的状态参数的对应关系。
对于通过灰度分析结果得到调节亮度的状态参数，是可以通过拍摄多组不同环境光下的照片，得到样本灰度分析结果以及相应的设定调节亮度的样本状态参数进行计算得到的。
对于通过灰度分析结果得到调节色温的状态参数的确定方法，在本例中给出一种可实现的方式进行说明。
使用黑白摄像头对用户视角范围的背景环境进行拍照，获得一张黑白照片，取这一张黑白照片的图像数据,并分成MxN块,比如假设是10x10块,并确定每个区块的量化参数，比如设定黑为0，白为1。统计每块区域的级数并累加，再除以总级数10x10得出的百分比，即为该张黑白照片的亮度比值。比如在上述例子中，有50个区块为黑，50个区块为白，则亮度比值为50％。因此经过黑白分析得到的亮度比值结合黑白摄像头的设置参数即可生成用户视角范围的背景环境亮度状态参数。
使用黑白摄像头对用户视角范围的背景环境进行拍照，获得一张黑白照片，取这一张黑白照片的图像数据,并分成MxN块,比如假设是10x10块,并将每一块区域的灰度值进行量化，通常划分成0到255共256个级别，其中0最暗(全黑)，255最亮(全白)。分析统计每块区域灰度值的级数并累加，再除以总级数10x10x256得出的百分比，即为该张黑白照片的亮度比值。因此经过灰度分析得到的亮度比值结合黑白摄像头的设置参数即可生成用户视角范 围的背景环境亮度状态参数。
当然，也可以将其灰度划分为更少数量的级别，比如划分为8个级别等，来进行区域亮度的统计和计算。
对于通过灰度分析结果得到调节亮度和色温的状态参数的确定方法，在本例中给出一种可实现的方式进行说明。
使用彩色摄像头对用户视角范围的背景环境进行拍照，获得一张彩色照片，取这一张彩色照片的图像数据，经过RGB三基色分解功能，分解出三张分别为红、绿、蓝三种颜色分量的照片，将这三张照片的R/G/B通道分量的均值按加权对应关系转换成灰度值。然后取红色分量这张照片的图像数据,将这张照片分成MxN块,比如假设是10x10块,并将每一块区域的灰度值进行量化，通常划分成0到255共256个级别，其中0最暗(全黑)，255最亮(全白)。统计每块区域灰度值的级数并累加，再除以总级数10x10x256得出的百分比，即为该张红色分量照片的亮度比值。同理，可分析计算出绿色分量照片和蓝色分量照片的亮度比值。最后将三张照片的亮度比值进行叠加，即可得到这一张彩色照片的亮度比值。因此经过灰度分析得到的亮度比值结合彩色摄像头的设置参数即可生成用户视角范围的背景环境亮度状态参数。
再将彩色摄像头分解出的三种颜色分量的照片进行合成，分析统计每块区域合成为标准有效的白色像素点后剩余的R/G/B通道分量，如果红色分量多，照片就偏于暖色调；蓝色分量多，照片就偏于冷色调。因此分析R/G/B颜色的分量比例便可得到具体的彩色照片的色温状态参数。因此经过灰度分析得到的亮度和色温状态参数结合彩色摄像头的设置参数即可生成用户视角范围的背景环境亮度和色温状态参数。
进一步的，显示屏参数调节单元5包括用以改变预置对应关系以匹配显示屏的显示参数与用户视角范围的背景环境的照明状态的第一调整装置(图中未示出)。第一调整装置(图中未示出)可以是设置于信息终端内的硬件模块，或者用于控制显示屏的软件模块。
进一步的，背景照明灯参数调节单元9包括用以调整外部的外部照明设备的显示参数使得背景环境的照明状态达到预置参数的第二调整装置(图中未示出)。第二调整装置(图中未示出)同样的可以是设置于信息终端内的硬件模块，或者用于控制外部照明设备的软件模块。
外部照明设备用于对用户视角范围的背景环境进行照明。优选的外部照明设备与显示屏1背相设置。并且，背景照明灯可以设置在信息终端之上，也可以分离于信息终端的本体设置。
此外，如图3所示，在接入云端的系统中，各个信息终端10可以通过网络20与云端30连接，将用以显示屏1的显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系的参数传输到云端30进行同步。同样的，也可以通过云端30同步显示屏1的显示参数与用户视角范围下背景环境的状态相匹配的预置对应关系参数。
云端保存有该用户所对应的用户习惯列表，用户习惯列表包括该用户对应的用户ID、显示屏的显示参数、背景灯的照明参数、照明状态、以及显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系。
通过信息终端上传的数据，云端可以分析得到该数据的用户ID，显示屏的显示参数、背景灯的照明参数、照明状态、以及显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系的参数，从而生成一条用户习惯记录，记录在用户习惯列表中。其中，对应关系的生成方式方法有很多，具体可以根据用户统计分析、预定算法、预定模型等来进行生成。通过对每一次用户使用调整的记录，就可以形成一个数据非常完整的用户习惯列表，从而就能够在用户使用的终端设备处于某种照明状态时，基于这个列表直接得到适于用户的显示屏的显示参数。
进一步的，在云端30还可以对预置对应关系数据进行大数据统计和分析，用以为接入云端30的多个信息终端10提供数据。云端30可以将来自多个信息终端10的显示屏背景光的预置对应关系的参数进行大数据分析，生成适应 于大众和小众的预置对应关系参数，用以各个信息终端10通过云端30同步各自所需的大众或小众的用以显示屏的显示参数与户视角范围的背景环境的照明状态的预置对应关系参数。
各信息终端10也通过云端30同步各自所需的大众或小众的普适显示屏的显示参数与用户视角范围显示屏背景光，即背景环境的照明状态的状态相匹配的预置对应关系参数。
对于多个用户列表的数据进行大数据统计和分析，还可以在采集用户数据时，采集用户的年龄、性别、职业等等，对于不同类别的人群，对其采集数据加以不同的权重。
比如对于20-30和40岁以上用户，在计算适用于大众的预置对应关系参数时，可以考虑面向用户的年龄结构，比如70％用户为20-30岁用户，其余为40岁以上用户，则在计算时，可以对于20-30岁用户的显示参数、照明状态、以及显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系的参数加以70％的权重，对于40岁以上用户的数据加以30％权重再进行计算。以上数据仅为举例说明。
对于不同职业、未成年人/成年人等，在使用习惯上会有明显区别的用户，均可参照上述方法，采用加权处理的方式以获取更加适合大众使用的显示参数。
上述过程为基于云数据的显示参数与背景环境照明状态，以及与外部照明设备的照明参数之间的自适应调整过程。
进一步的，在本实施例的一个优选的方案中，还可以利用第一调整装置、第二调整装置分别在自适应调整完成之后实现用户依据自身个性化需求来进行相应的参数调节的过程。
下面以显示屏的显示参数与背景环境照明状态的个性化调整为例进行说明。对于控制外部照明设备的照明参数的个性化调整方法可以同样参照本例进行。
具体的，用户在自适应调整完成后的显示屏显示参数的基础上，根据自身对于背景照明和显示屏显示参数的感知，通过第一调整装置调节显示屏的显示参数。信息终端10在接收到显示参数调节后，将修正后的显示屏的显示参数与用户视角范围的背景环境的照明状态参数发送到云端30，并在上传数据中加载信息终端10中记录的用户的信息，比如用户的性别、年龄、职业，以便于对数据进行分类统计，云端30根据接收到的数据，将原先记录的该用户在该背景环境的照明状态参数下对应显示参数的预置对应关系进行改变,生成修正对应关系。
在一个具体的计算方法中，云端计算修正对应关系与预置对应关系的偏离程度和偏离数量，将达到第一偏离数量并且小于第一偏离阈值的修正对应关系与预置对应关系进行加权处理，从而生成第一范围的普适预置对应关系；
将达到第二偏离数量并且大于第一偏离阈值且小于第二偏离阈值的修正对应关系与预置对应关系进行加权处理，从而生成第二范围的特质预置对应关系。
也就是说，在上面提到的算法中，将偏离度小于第一偏离阈值且样本数量达到第一偏离数量的数据，用于计算第一范围的普适预置对应关系；将偏离度大于第一范围且小于第二范围，样本数量达到第二偏离数量的数据，用于计算第二范围的特质预置对应关系。
云端在生成适应于第一范围的普适预置对应关系以及适应于第二范围的特质预置对应关系时还可以考虑对不同用户属性给予不同的数据修正权重系数，通过归一化处理得到第一范围的普适预置对应关系以及适应于第二范围的特质预置。具体包括:云端确定修正对应关系对应的用户属性；根据用户属性确定数据修正权重系数；根据数据修正权重系数对修正对应关系的参数进行数据分析处理，得到归一化的修正对应关系的参数；根据显示屏的显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系，和归一化的修正对应关系的参数进行数据分析，生成适应于第一范围的普适预 置对应关系以及适应于第二范围的特质预置对应关系。
用户的个性化参数调整也会对云端的普适预置对应关系进行改变。
因为，在某个用户在某个背景环境照明状态下的显示参数对应关系进行修正时，相当于对于该背景环境照明状态下大数据统计的普适预置对应关系的统计数据也发生了改变。此时的普适计算需要考虑将来自多个信息终端的预置对应关系的参数，以及来自个性化定制用户的信息终端的修正对应关系的参数来进行数据分析，从而生成新的普适预置对应关系以及新的适应于小众的特质预置对应关系。
因而，随着众多用户在自适应参数调整后对信息终端的显示参数进行个性化调整的数据采集，普适预置对应关系会随之不断动态调整，并趋于大众都能够接受的合理范围。
同样的，对于特定小众的特质预置对应关系的动态调整也会随着用户个性化定制的显示数据相应变化。但是需要说明的是，与普适预置对应关系不同的是，因为特质预置对应关系只针对某些特定人群，比如20—30岁的女人，北京地区16岁以下的儿童等等，在将这类人群的特质预置对应关系进行修正的时候，其修改的数据采样范围仅为该特定人群，所以与普适预置对应关系的调整所基于的数据基数是不同的。因此基于用户个性化参数修正后，普适预置对应关系和特质预置对应关系的参数变化一定是不同的。
此外，第一调整装置对于用户的调整指令输入，可以进行识别，比如在进行首次调节时，当用户通过第一调整装置输入调整指令，第一调整装置可以将该输入解析为请求普适的匹配，从而通过云端获取普适预置参数。
如果是在普适配置完成之后，用户在一定时间之内输入了调整指令，可以认为是用户的连续操作，比如用户在1秒内连续三次输入增加亮度的指令，可以被识别为该指令的作用是将亮度上调三档。
基于上述描述，本领域技术人员可知对于外部照明设备的照明参数的 个性化调整方法可以同样参照本例进行。相同部分在此处不再赘述。
对于控制外部照明设备的照明参数的个性化调整方法，还可以包括设置外部照明设备的开关阈值。通过对环境参数的采集，确定是否达到开关阈值。比如当环境亮度低于阈值范围的下限时，生成开启信号，控制外部照明设备开启，并执行上述对于外部照明设备的照明参数和显示屏显示参数的普适预置参数获取的过程进行匹配。当环境亮度高于阈值范围的上限时，生成外部照明设备关闭信号，控制外部照明设备关闭，并对显示屏参数重新执行普适预置参数获取的过程进行匹配。
进一步的，环境亮度低于阈值范围的下限时，背景照明灯自动开启，并且，基于背景光(原本的环境光)和补偿光(背景照明灯的光)的预置对应关系，根据背景环境的状态参数使背景照明灯输出相应的照明参数，使得显示屏的显示参数与所述用户视角范围内调节后的背景环境的照明状态相匹配。
在背景照明灯对环境亮度进行补偿后，通过信息终端还持续对补偿后的环境照明进行检测，当环境照明参数变好时，背景照明灯发出的补偿光就会随着环境照明参数的变好而进行衰减，当达到环境亮度的阈值范围的上限时，就关闭背景照明灯的补偿照明。
本发明实施例提供的信息终端，能够基于用户视角范围对背景环境的照明进行采样，并根据采样得到的背景环境的状态参数生成控制信号对用于背景环境的照明的外部照明设备进行控制，并同时相应对显示屏的亮度、色温进行调节，使显示屏的亮度、色温与用户视角范围的背景环境的照明状态相匹配，从而使得屏幕显示与使用者的视觉感知相符，从而有效减使用者在使用过程中的视觉疲劳，保护使用者的视觉健康。
专业人员应该还可以进一步意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能 一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明实施例的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器执行的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (13)

  1. 一种信息终端，包括显示屏、第一通信装置和第二通信装置，其特征在于，所述信息终端还包括：摄像头、照片检拍单元、照片灰度分析单元、输出单元、显示屏参数调节单元和背景照明灯参数调节单元；
    外部照明设备对用户视角范围的背景环境进行照明；
    所述摄像头用于获取用户视角范围的背景环境的照片模拟信号或照片数字信号；
    所述照片检拍单元通过所述第一通信装置与所述摄像头相连接，将所述摄像头获取的所述照片模拟信号或照片数字信号转换为数字化的照片数据；
    所述照片灰度分析单元对所述照片数据进行灰度分析，并根据摄像头的设置参数生成所述用户视角范围的背景环境的状态参数，并分别发送到所述背景照明灯参数调节单元和所述显示屏参数调节单元；
    所述背景照明灯参数调节单元通过所述第二通信装置与所述背景照明灯相连接，根据所述状态参数生成控制信号，发送给所述输出单元；
    所述输出单元将所述控制信号输出给所述外部照明设备，用以对所述外部照明设备的照明参数进行调节，使得所述背景环境的照明状态达到预置参数；其中所述照明参数至少包括亮度和/或色温；
    所述显示屏参数调节单元基于预置对应关系，根据所述背景环境的状态参数对所述显示屏的显示参数进行调节，使所述显示屏的显示参数与所述用户视角范围内所述调节后的背景环境的照明状态相匹配；其中所述显示参数至少包括亮度和/或色温。
  2. 根据权利要求1所述的信息终端，其特征在于，所述显示屏参数调节单元包括：用于调节所述显示屏的显示参数的第一调整装置；在所述显示参数调节后，将所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态的预置对应关系改变,生成第一修正对应关系；其中，所述第一调整装置具体为：
    设置于所述信息终端内的硬件模块，或者用于控制所述显示屏的软件模块。
  3. 根据权利要求1所述的信息终端，其特征在于，所述背景照明灯参数调节单元包括：用于调节所述外部照明设备的照明参数的第二调整装置；在所述照明参数调节后，将所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态的预置对应关系改变,生成第二修正对应关系，其中，所述第二调整装置具体为：
    设置于所述信息终端内的硬件模块，或者用于控制所述显示屏的软件模块。
  4. 根据权利要求2所述的信息终端，其特征在于，所述信息终端通过网络与云端连接，将所述背景环境的状态参数传输到云端进行同步，并存储为状态预置参数。
  5. 根据权利要求4所述的信息终端，其特征在于，所述云端将来自多个所述信息终端的背景环境的预置对应关系和所述第一修正对应关系的参数进行数据分析，生成适应于第一范围的普适状态预置参数以及适应于第二范围的特质状态预置参数，用以各所述信息终端通过所述云端获取与所述背景环境相应的普适状态预置参数或特质状态预置参数。
  6. 根据权利要求1所述的信息终端，其特征在于，所述信息终端通过网络与云端连接，将用以所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态相匹配的预置对应关系的参数传输到所述云端，进行同步；所述云端保存有该用户所对应的用户习惯列表，所述用户习惯列表包括该用户对应的用户ID、显示屏的显示参数、照明状态、以及所述显示参数与用户视角范围的背景环境的照明状态相匹配的预置对应关系。
  7. 根据权利要求3所述的信息终端，其特征在于，所述云端根据所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态相匹配的预置对应关系，和所述第二修正对应关系的参数进行数据分析，生成适应于第一范 围的普适预置对应关系参数以及适应于第二范围的特质预置对应关系参数，用以各个所述信息终端通过所述云端获取用于匹配所述显示屏的显示参数与所述用户视角范围的背景环境的照明状态的所述普适预置对应关系参数或所述特质预置对应关系参数。
  8. 根据权利要求7所述的信息终端，其特征在于，所述云端的数据分析具体为：
    所述云端计算所述修正对应关系与预置对应关系的偏离程度和偏离数量，将达到第一偏离数量并且小于第一偏离阈值的修正对应关系与所述预置对应关系进行加权处理，从而生成第一范围的普适预置对应关系参数；
    将达到第二偏离数量并且大于第一偏离阈值且小于第二偏离阈值的修正对应关系与所述预置对应关系进行加权处理，从而生成第二范围的特质预置对应关系参数。
  9. 根据权利要求1所述的信息终端，其特征在于，所述背景环境的状态参数包括亮度参数和/或色温参数。
  10. 根据权利要求1所述的信息终端，其特征在于，所述根据所述背景环境的状态参数对所述显示屏的显示参数进行调节具体包括：
    根据所述背景环境的状态参数和所述预置对应关系确定目标亮度绝对值；
    根据所述目标亮度绝对值确定所述显示屏的显示亮度百分比；
    根据所述显示屏的显示亮度百分比输出与所述目标亮度绝对值相符的显示屏实际显示亮度；其中，所述显示屏实际显示亮度与所述显示屏的最大亮度绝对值之间通过显示亮度百分比进行预先标定。
  11. 根据权利要求1所述的信息终端，其特征在于，所述信息终端还包括采集图像定位装置；
    所述采集图像定位装置对所述摄像头采集到的每帧图像进行定位，根据所述定位将所述摄像头采集到的多帧图像进行融合拼接处理，得到用户视角 范围的背景环境的照片模拟信号或照片数字信号。
  12. 根据权利要求11所述的信息终端，其特征在于，所述照片检拍单元还用于对所述照片模拟信号或照片数字信号进行盲点区域分析，并对分析得到的盲点区域进行模拟预测，从而结合模拟预测结果和所述照片模拟信号或照片数字信号生成所述数字化的照片数据。
  13. 根据权利要求1所述的信息终端，其特征在于，所述信息终端还包括照片色彩分析单元，对所述照片数据进行色彩分析，根据色彩敏感度函数计算色彩值；所述色彩敏感度函数为与色彩杂乱度相关的分段函数；
    结合所述色彩值和所述灰度分析的结果以及所述摄像头的设置参数生成所述用户视角范围的背景环境的状态参数。
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