WO2018196598A1 - 图像数据传输方法、装置以及存储介质、处理器 - Google Patents

图像数据传输方法、装置以及存储介质、处理器 Download PDF

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Publication number
WO2018196598A1
WO2018196598A1 PCT/CN2018/082443 CN2018082443W WO2018196598A1 WO 2018196598 A1 WO2018196598 A1 WO 2018196598A1 CN 2018082443 W CN2018082443 W CN 2018082443W WO 2018196598 A1 WO2018196598 A1 WO 2018196598A1
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Prior art keywords
image
area
resolution
images
header information
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PCT/CN2018/082443
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English (en)
French (fr)
Inventor
王云飞
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北京七鑫易维信息技术有限公司
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Priority to US16/338,434 priority Critical patent/US10930252B2/en
Publication of WO2018196598A1 publication Critical patent/WO2018196598A1/zh

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    • G06T3/04—
    • 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
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/391—Resolution modifying circuits, e.g. variable screen formats
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G06F3/013—Eye tracking input arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • 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
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • 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
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user

Definitions

  • the present invention relates to the field of data transmission, and in particular to an image data transmission method and apparatus, and a storage medium and a processor.
  • the format of the transmitted image data is not fixed, and the format of the image data transmitted by different computers to different display devices is different, for example, the format in which the computer A transmits the image to the display device A.
  • the format of the computer B transmitting the image data to the display device B is B, wherein the computer A can transmit the image data of the format A, and the display device B can receive the image data of the format B, therefore, the computer A and the display device B Due to the limitation of the format of the image data, the image data cannot be transmitted to each other, resulting in poor compatibility between the image data transmission devices.
  • Embodiments of the present invention provide an image data transmission method and apparatus, and a storage medium and a processor, so as to at least solve the problem that image data is transmitted by using multiple formats, and the image data transmission can only transmit image data of a specific format.
  • the image data transmission is affected by the format of the image data, which causes a technical problem of poor compatibility of the image data transmission device.
  • an image data transmission method which divides a target image into a plurality of area images having different resolutions, wherein the target image includes a first area image and a second area image,
  • the first area image is an image of a region where the gaze point is located
  • the second area image is an area image of the target image other than the first area image
  • the header information in the plurality of area images is transmitted and each The pixel value of each pixel in the area image.
  • the dividing the target image into the plurality of area images with different resolutions comprises: dividing the target image into a plurality of areas to obtain a plurality of area images; and assigning each of the plurality of area images Resolution, wherein the resolution of each of the regions is different.
  • the allocating a resolution for each of the plurality of regional images includes: assigning a first resolution to the first regional image, wherein the first resolution is the target image a native resolution; assigning a second resolution to the second region image, wherein the second resolution is less than a native resolution of the target image.
  • the header information includes a first type of header information, where the first type of header information includes a location of the gaze point; transmitting header information in the plurality of area images, and each of the area images
  • the pixel value of each pixel in the middle includes: transmitting the first type of header information; and transmitting pixel values of each pixel in each of the area images one by one.
  • the header information includes a second type of header information, wherein the second type of header information is in one-to-one correspondence with each of the area images; and header information in the plurality of area images is transmitted and each of the The pixel values of each pixel in the area image include: transmitting the second type of header information of each of the area images one by one and the pixel value of each of the pixels.
  • the second type of header information is determined by: determining a shape, a size, and a resolution of each of the area images; determining a location of the positioning point of each of the area images; according to each of the areas The shape, size, and resolution of the image and the location of the anchor point determine a second type of header information for each of the region images.
  • the determining the location of the positioning point of each of the area images comprises at least one of the following: in the case that the area image is a rectangular or rectangular ring, the location of the positioning point includes at least one of the following: The position of the upper left corner of the rectangular or rectangular ring, the position of the upper right corner of the rectangular or rectangular ring, the position of the lower left corner of the rectangular or rectangular ring, the position of the lower right corner of the rectangular or rectangular ring, the The position of the center point of the rectangular or rectangular ring; in the case where the image of the area is a circle or a ring, the position of the positioning point is the position of the center point of the circle or the ring.
  • transmitting the header information in the plurality of area images and the pixel value of each pixel point in each of the area images includes at least one of: transmitting each of the pieces one by one according to a resolution from high to low. Area images; each of the area images are transmitted one by one in descending order of resolution; each of the area images is transmitted one by one in a random order.
  • a storage medium comprising a stored program, wherein the program is executed to perform the method of any of the above.
  • processor being arranged to run a program, wherein the program is executed to perform the method of any of the above.
  • the target image is divided into a plurality of regional images with different resolutions, wherein the first region image is an image of a region where the fixation point is located, and the second region is an region of the target image other than the first region.
  • Image and then transmitting each area image one by one according to a fixed format of image data including header information and pixel values of each pixel in each area image, thereby transmitting images according to fixed format image data during image transmission, It is convenient to match the transmission side and the receiving side of the image data, thereby solving the problem that the image data is transmitted by using multiple formats, and the image data transmission can only transmit the image data of a specific format, so that the image data transmission is affected by the image data.
  • the format affects the technical problem of poor compatibility of image data transmission equipment.
  • FIG. 1 is a flow chart of an image data transmission method according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of an optional image region division according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an image data transmission device in accordance with an embodiment of the present invention.
  • an embodiment of an image data transmission method there is provided an embodiment of an image data transmission method, and it is to be noted that the steps illustrated in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although The logical order is shown in the flowcharts, but in some cases the steps shown or described may be performed in a different order than the ones described herein.
  • FIG. 1 is a flowchart of an image data transmission method according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:
  • Step S102 the target image is divided into a plurality of area images having different resolutions, wherein the target image includes a first area image and a second area image, the first area image is an image of a region where the fixation point is located, and the second region image is a target An image of the area other than the image of the first area in the image;
  • Step S104 transmitting header information in the plurality of area images and pixel values of each pixel point in each area image.
  • the target image is divided into a plurality of regional images with different resolutions, wherein the first region image is an image of a region where the fixation point is located, and the second region is an region image of the target image other than the first region, and then
  • Each area image is transmitted one by one in accordance with a fixed format of image data including header information and pixel values of each pixel in each area image, thereby transmitting images according to image data of a fixed format during image transmission, which may facilitate image data.
  • the matching between the transmitting party and the receiving party further solves the problem that the image data is transmitted by using multiple formats, and the image data transmission can only transmit the image data of a specific format, so that both sides of the image data transmission are affected by the format of the image data.
  • the target image may be divided into a plurality of regions according to the gaze point, wherein the region where the gaze point is located in the target image is the first region image, and the region not including the gaze point in the target image is the second region image. It is convenient to assign different resolutions to images of different regions according to the user's visual habits and actual needs.
  • the gaze point may be a point that the user pays attention to.
  • the user's eyes first pay attention to a point in the target image, and then use the point as the focus attention target image. Therefore, The focus of the user's attention to the image is the gaze point.
  • the image may be imaged into a plurality of regions according to the gaze point, and the shape of each region image may include, but is not limited to, a circle, a rectangle, or an ellipse.
  • the first area image may be a focus area of the target image display
  • the second area image may be a background area of the target image.
  • the gaze point may be in the middle of the image of the first area.
  • the second area image may surround the image of the first area.
  • the target image may include a plurality of second area images.
  • the plurality of second area images may sequentially surround the image of the previous area.
  • the target image is divided into a plurality of circular or circular area images
  • the target image is divided into a circular area image including the fixation point and the image surrounding the circular area, with the fixation point as the center of the circle.
  • the circular area image in which the fixation point is located is the first area image
  • the plurality of rings outside the circular area are the second area image, wherein the area of the first ring
  • the image surrounds the image of the first area
  • the image of the area of the second ring surrounds the image of the area of the first ring
  • the image of the area of the third ring surrounds the image of the area of the second ring
  • the second area image is a ring shape.
  • the shape of the outermost second region image may be a rectangular frame whose outer side is a target image, and the inner side is a circular ring.
  • the target image is divided into three regional images, namely, the regional image A, the regional image B, and the regional image C, wherein the regional image A is the first regional image, the regional image B and the regional image C
  • the image for the second area is a circle with the gaze point as the center of the target image;
  • the area image B is a circle, the ring is centered on the gaze point in the target image, and the area image A is the inner circle;
  • the area image C is the target image. Except for the remaining portions of the area image A and the area image B.
  • the target image may be divided into a plurality of concentric circles.
  • the image is divided into a plurality of concentric circles with the gaze point as a center.
  • the target image is divided into three regional images, namely, the regional image A, the regional image B, and the regional image C, wherein the regional image A is the first regional image, the regional image B and the regional image C The image for the second area.
  • the area image A is a circle centered on the gaze point in the target image;
  • the area image B is a circle having a gaze point as a center and a radius larger than the area image A in the target image, and the size and shape of the area image C are the same as the target image.
  • the image of the region of the coincident portion is transmitted only once.
  • the area image A is a circle centered on the gaze point in the target image
  • the area image B is a circle in the target image centered on the gaze point, the radius is larger than the area image A, and the size and shape of the area image C Same as the target image.
  • the image of the area A, the part of the area image B other than the area image A, and the part of the area image C other than the area image B are transmitted.
  • the header information may be determined according to the divided plurality of area images for indicating the outline and position of the area image.
  • the pixel value of each pixel in each area image may be the pixel value of each pixel in the contour area determined by the corresponding header information.
  • the display screen may determine, according to the header information, a corresponding area of the area image on the display screen.
  • the number of pixels in each area image may be determined according to the resolution of each area image.
  • the pixel value of each pixel in each area image may be transmitted in the order of raster scanning.
  • dividing the target image into multiple regions of the resolution image includes: dividing the target image into multiple regions to obtain a plurality of region images; and assigning each region image of the plurality of region images Resolution, where the resolution of each area image is different.
  • the target image is divided into a plurality of regions, and a plurality of region images are obtained, and corresponding resolutions are assigned to each region image, and the corresponding region images are rendered according to the allocated resolution to obtain resolution.
  • the image of multiple regions with different rates can be divided into multiple regions of different resolutions, so that the target with different resolutions can be allocated to multiple regions compared with the original image directly transmitted according to the original resolution of the target image.
  • the amount of data of the image is lower than the amount of data of the target image of the original resolution, which facilitates the application of the target image.
  • the target image may be an image to be transmitted, and the target graphic is divided into multiple regions, wherein the image represented by each region in the target image is the region image.
  • the target image may be divided into a plurality of target images in accordance with a predetermined shape.
  • the predetermined shape is a circle
  • a plurality of concentric circles may be drawn on the target image, and the target is divided into an intermediate circle and a plurality of peripheral rings.
  • the predetermined shape is a rectangle
  • a plurality of rectangles may be drawn on the target image, and the object is divided into an intermediate rectangle and a plurality of peripheral rectangular rings.
  • the image includes a plurality of pixels uniformly distributed, each pixel point exhibits a different color, and a plurality of pixels of different colors together constitute an image.
  • the resolution is a reference amount for expressing the sharpness of the image, wherein the resolution can be expressed by the number of pixels. For example, a resolution of 160 ⁇ 128 means that the horizontal direction has 160 pixels and the vertical direction has 128 pixels. point. Therefore, the resolution of the image can be changed by changing the number of pixels within the image. Therefore, the higher the resolution of the image, the greater the number of pixels within the image.
  • the resolution of each corresponding region image is changed by assigning a different resolution to each region image.
  • the more pixels in the image the larger the amount of data of the image, wherein the amount of data may be the size of the data. For example, if the size of the image A is 5 MB, the data amount of the image A is 5 megabytes.
  • a resolution is assigned to each of the plurality of regional images, and a resolution may be assigned to each of the regional images by rendering.
  • allocating the resolution for each of the plurality of regional images includes: assigning a first resolution to the first regional image, wherein the first resolution is the original resolution of the target image; A second resolution is assigned to the second region image, wherein the second resolution is less than the original resolution of the target image.
  • the original resolution of the target image is used as the first resolution of the first region image, and the original image resolution is smaller than the resolution of the second region image, so that the user can focus on the first region of the focus.
  • Image sharpness, weakening the sharpness of the background area can reduce the amount of data of the target image while ensuring the user's viewing experience, and facilitate image transmission.
  • the user in the process of viewing an arbitrary image (the image of different resolution is not allocated to different regions), the user mainly focuses on the content around the point, and uses the visual residual light to pay attention to the content of the background, that is, in the user.
  • assigning a higher resolution assigning a lower resolution to the second area image, and reducing the data amount of the target image by reducing the resolution of the second area image without affecting the user experience of viewing the target image. For easy image transmission.
  • the resolution of the area image allocation farther from the point of interest is lower, and the resolution of the area image allocation closer to the attention point is higher.
  • the first area image is a circle centered on the point of interest
  • the second area image is a plurality of rings surrounding the first area image with the focus point as a center
  • the resolution of the image distribution is the original resolution of the target image
  • the resolution of the image distribution of the second region is lower than the original resolution of the target image
  • each region image may be proportionally reduced to a resolution of each region image distribution according to a distance from the gaze point in a near and far distance.
  • the resolution of the area image farther from the point of interest is 1/N of the resolution of the area image closer to the point of interest.
  • the original resolution of the target image is a
  • the target image includes a plurality of second regions, wherein the order of the plurality of second regions is once the region image in order of distance from the gaze point.
  • A, area image B. If the resolution decreases by 50%, the resolution of the first region image allocation is a; the resolution of the region image A is 50%a; the resolution of the region image B is 50%*50%a 25 %a.
  • allocating the second resolution to the second area image comprises: converting the resolution of the second area image to a second smaller than the original resolution by performing N times downsampling on the second area image. Resolution.
  • the second area image is downsampled, and the resolution of the second area image is reduced to the second resolution, so that the second sub-area image can be determined to be lowered by the second display content without changing the original display content.
  • the resolution of the area image is reduced to the second resolution, so that the second sub-area image can be determined to be lowered by the second display content without changing the original display content.
  • subsampled is to reduce the resolution of the image and reduce the size of the image so that the image can be displayed on a display device lower than the image resolution.
  • the second area image is downsampled, and the plurality of pixel points in the second area image may be intermittently sampled by a low pass filter to obtain a second area image of the second resolution.
  • N should be the common divisor of P and Q. If the original image is a rectangular image, the image in the original image N*N window is turned into a pixel. The value of this pixel is the mean of all pixels in the window. .
  • transmitting image data of each of the plurality of area images one by one includes: determining head information of each area image and pixel values of each pixel point in each area image; transmitting each The header information of the area image and the pixel value of each pixel in each area image.
  • the header information of each pixel in each area image and the pixel value of each pixel are first determined, and the header information of each area image and the image of each area are transmitted in the transmission process.
  • the image data of the pixel value of each pixel can facilitate the recipient to restore each region image according to the transmitted image data.
  • the header information includes a first type of header information, where the first type of header information includes a location of a gaze point; the header information in the plurality of area images is transmitted, and each pixel point in each area image
  • the pixel values include: transmitting the first type of header information; and transmitting the pixel values of each pixel in each of the area images one by one.
  • the first type of header information determined according to the position of the attention point dividing the plurality of area images in the target image, and each of the area images may be transmitted.
  • the pixel value of the pixel thus completing the image transmission.
  • the process of transmitting the plurality of area images includes the transmission side of the image data and the receiver of the image data, and the transmission side of the image data divides the target image into the first area image including the fixation point according to the fixation point information in advance.
  • the second area image and then in the transmission of the divided plurality of image areas; the receiver of the image data, pre-storing the division manner of dividing the target image into a plurality of area images, and the image data only needs to be divided into a plurality of target images.
  • the position of the gaze point of the area image can restore the shape, position, size, resolution and the like of each area image, thereby determining the header information corresponding to each area image.
  • the image receiver determines the header information corresponding to each area image according to the division manner of the plurality of area images, thereby reducing the image data that needs to be transmitted during the transmission of the image.
  • the amount of data to speed up data transfer efficiency.
  • position information of the positioning points of each area image may also be transmitted, and pixel values of each pixel point in each area image are transmitted one by one.
  • the anchor point is a point set for determining the image position of each area.
  • the plurality of area images include the area image A and the area image B, the area image A includes the positioning point A, and the area image B includes the positioning point B, and the image data is transmitted during the process of transmitting the image data.
  • the receiver of the image data can restore the area image A and the area image B according to the position of the anchor point A and the position of the anchor point B, thereby determining the header information of the area image A and the header information of the area image B, thereby enabling the reception of the image data.
  • the party can obtain the header information of the area image A and the pixel value of each pixel, and the header information of the area image B and the pixel value of each pixel.
  • the header information includes a second type of header information, wherein the second type of header information is in one-to-one correspondence with each of the area images; the header information in the plurality of area images is transmitted, and each of the area images is
  • the pixel values of the pixels include: a second type of header information for transmitting each region image one by one and a pixel value of each pixel.
  • the second type of header information of each area image of each of the plurality of area images and the pixel value of each pixel point are transmitted one by one, thereby completing image transmission.
  • the plurality of area images include the area image A and the area image B.
  • the second type of header information corresponding to the area image A and the pixel value of each pixel point are transmitted, and then the transmission area The second type of header information corresponding to the image B and the pixel value of each pixel.
  • the second type of header information may be determined by determining a shape, a size, and a resolution of each area image; determining a position of an anchor point of each area image; The shape, size, and resolution, as well as the location of the anchor point, determine the second type of header information for each region's image.
  • Determining the second type of header information of each area image can accurately determine the position and contour of each area image in the target image, and ensure the accuracy of the transmitted image.
  • each of the area images may include a plurality of anchor points.
  • determining the location of the positioning point of each area image includes at least one of the following: in the case that the area image is a rectangular or rectangular ring, the position of the positioning point includes at least one of the following: a rectangle or a rectangle The position of the point in the upper left corner of the ring, the position of the point in the upper right corner of the rectangle or rectangle ring, the position of the lower left corner of the rectangle or rectangle ring, the position of the lower right corner of the rectangle or rectangle ring, the position of the center point of the rectangle or rectangle ring; In the case of a circle or a ring, the position of the anchor point is the position of the circle or the center point of the ring.
  • different positioning points can be flexibly selected in the case where the area images are different shapes, so that the selected positioning points can be applied to the area images of various shapes.
  • transmitting the header information in the plurality of area images and the pixel value of each pixel point in each area image may include at least one of: transmitting each of the pieces in order of resolution from high to low. Area images; each area image is transmitted one by one in order of resolution from low to high; each area image is transmitted one by one in random order.
  • a plurality of area images having different resolutions are respectively transmitted, and after the image of the previous area is transmitted, the image of the next area is transmitted, thereby separately transmitting each area image, and each area image can be ensured.
  • the accuracy of the transmission is provided.
  • the present invention also provides a preferred embodiment, which provides a code stream labeling method for layered images.
  • the image transmission method and image display method of the present invention can be applied between a VR device and a computer.
  • the image displayed by the VR device may be an image processed by the gaze point, wherein the area around the gaze point in the image is the same image as the original image, and the other areas display lower than the original image resolution.
  • Image That is to say, in the entire screen display area, the resolutions of the images of different regions are different, so it is not necessary to transmit the image of the full resolution during the actual transmission.
  • the above embodiments of the present invention can be applied to a VR system, particularly in a wirelessly transmitted VR system, which includes an eye control unit, a computing unit/image sender (PC or mobile phone), and a display unit/image receiver.
  • a VR system particularly in a wirelessly transmitted VR system, which includes an eye control unit, a computing unit/image sender (PC or mobile phone), and a display unit/image receiver.
  • the eye control unit can be used to determine the user's gaze point.
  • the flow of layered image transmission provided by the present invention is:
  • the area image with a lower resolution than the screen resolution is obtained by interpolation.
  • Each pixel point in each area image is in one-to-one correspondence with the screen pixel points.
  • the shape and size of the focus area and the shape and size of the background area may be specified according to the position of the gaze point.
  • n times down sampling may be performed on the background area, the focus area is not downsampled, and the background and the focus area and the position and size of each area are transmitted to the decoding end.
  • the focus area can continue to be layered, with m times downsampling of the background in the focus area.
  • FIG. 2 is a schematic diagram of an optional image region division according to an embodiment of the present invention.
  • the key region is designated as a circle (region 1) according to the position of the fixation point, and the background region is outside the key region in the image.
  • the focus area is the resolution of the original image; the resolution of the ring area in the background area is 50% of the resolution of the original image; the resolution of the area other than the focus area and the ring area in the background area is the resolution of the original image. 25%.
  • the code stream structure for transmitting the image of each area is as follows:
  • the format of the transmitted stream is as follows:
  • the position of the first area image (X, Y), the image data of the first area image (the pixel value of the first pixel, the pixel value of the second pixel... arranged in raster scan order), the second The position of the area image, the image data of the second area image, ..., the position of the Kth area image, and the image data of the Kth area image.
  • the key area image (the area image with high resolution) is transmitted first, and the background area (area image with low resolution) is transmitted later.
  • the first area image is the first area image
  • the last area image is the Kth area image
  • the position coordinate information of each area image that is, the position (X, Y) of each area image may be the center position coordinate of the area image, or the upper left corner position coordinate of the area image or the like.
  • each frame of the transmitted image data includes pixel data of the coordinates included in the region image and the coordinates of the previous region image are not included.
  • each pixel in the image may be sequentially transmitted in a raster scan order.
  • an embodiment of the present invention further provides a storage medium, where the storage medium includes a stored program, wherein, when the program is running, the device where the storage medium is located performs the image data transmission method described above. .
  • an embodiment of the present invention further provides a processor configured to execute a program, wherein the image data transmission method described above is executed while the program is running.
  • an image data transmission apparatus is further provided.
  • the image data transmission apparatus may be used to perform an image data transmission method in the embodiment of the present invention.
  • the data transmission method can be performed in the image data transmission device.
  • FIG. 3 is a schematic diagram of an image data transmission apparatus according to an embodiment of the present invention.
  • the apparatus may include: a dividing unit 31 configured to divide a target image into a plurality of area images having different resolutions, where The target image includes a first area image which is an image of a region where the gaze point is located, a second area image which is an area image other than the first area image in the target image, and a transmission unit 33 Set to transmit header information in multiple region images and pixel values for each pixel in each region image.
  • the dividing unit 31 in this embodiment may be configured to perform step S102 in the embodiment of the present application
  • the transmitting unit 33 in this embodiment may be configured to perform step S104 in the embodiment of the present application.
  • the above modules are the same as the examples and application scenarios implemented by the corresponding steps, but are not limited to the contents disclosed in the above embodiments.
  • the target image is divided into a plurality of regional images having different resolutions, wherein the first region image is an image of a region where the fixation point is located, and the second region is other than the first region of the target image.
  • the area image and then transmitting each area image one by one according to a fixed format of the image data including the header information and the pixel value of each pixel in each area image, thereby transmitting the image according to the fixed format image data during image transmission. It can facilitate the matching between the transmitting side and the receiving side of the image data, thereby solving the problem that the image data is transmitted by using multiple formats, and the image data transmission can only transmit the image data of a specific format, so that the image data transmission is affected by the image data.
  • the format affects the technical problems that cause poor compatibility of image data transmission equipment.
  • the dividing unit may include: a dividing module configured to divide the target image into a plurality of regions to obtain a plurality of region images; and an allocation module configured to be each of the plurality of region images The area image is assigned a resolution in which the resolution of each area image is different.
  • the allocating module may include: a first allocating submodule configured to allocate a first resolution to the first area image, wherein the first resolution is the original resolution of the target image; An allocation sub-module is arranged to assign a second resolution to the second region image, wherein the second resolution is less than the original resolution of the target image.
  • the second distribution submodule may include: a downsampling module configured to convert the resolution of the second area image to be smaller than the original resolution by downsampling the image of the second area Two resolutions.
  • the header information includes a first type of header information, where the first type of header information includes a location of a gaze point
  • the transmission unit may include: a first transmission module configured to transmit the first type of header information a second transmission module configured to transmit pixel values of each pixel in each of the area images one by one.
  • the header information includes a second type of header information, where the second type of header information is in one-to-one correspondence with each area image;
  • the transmission unit may include: a third transmission module, configured to transmit one by one The second type of header information of the area image and the pixel value of each pixel.
  • the second type of header information is determined by the following module: a first determining module configured to determine a shape, a size, and a resolution of each area image; and a second determining module configured to determine each The position of the positioning point of the area image; the third determining module is configured to determine the second type of header information of each area image according to the shape, size and resolution of each area image and the position of the positioning point.
  • the second determining module may include at least one of the following: a rectangle determining module, configured to: when the area image is a rectangular or rectangular ring, the position of the positioning point includes at least one of the following: a rectangle Or the position of the upper left corner of the rectangle ring, the position of the upper right corner of the rectangle or rectangle ring, the position of the lower left corner of the rectangle or rectangle ring, the position of the lower right corner of the rectangle or rectangle ring, the position of the center point of the rectangle or rectangle ring;
  • the determining module is set such that, in the case where the area image is a circle or a circle, the position of the positioning point is a circle or a position of a center point of the ring.
  • the transmission unit includes at least one of the following: a fourth transmission module configured to transmit each area image one by one according to a resolution from high to low; the fifth transmission module is set to follow Each area image is transmitted one by one in a low-to-high resolution; the sixth transmission module is arranged to transmit each area image one by one in a random order.
  • the disclosed technical contents may be implemented in other manners.
  • the device embodiments described above are only schematic.
  • the division of the unit may be a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, unit or module, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

Abstract

本发明公开了一种图像数据传输方法、装置以及存储介质、处理器。其中，该方法包括：将目标图像划分为分辨率不同的多个区域图像，其中，所述目标图像包括第一区域图像和第二区域图像，所述第一区域图像为注视点所在区域的图像，第二区域图像为所述目标图像中除所述第一区域图像之外的区域图像；以及传输所述多个区域图像中的头信息以及每个区域图像中每个像素点的像素值。本发明解决了由于采用多种格式的图像数据进行传输，并且图像数据的传输双方仅能传输特定格式的图像数据，使图像数据传输双方受图像数据的格式影响，造成图像数据传输设备兼容性差的技术问题。

Description

图像数据传输方法、装置以及存储介质、处理器
本申请要求于2017年04月28日提交中国专利局、申请号为201710298560.3、发明名称“图像数据传输方法、装置以及存储介质、处理器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及数据传输领域，具体而言，涉及一种图像数据传输方法、装置以及存储介质、处理器。
背景技术
目前，传统的计算机向显示设备传输图像的过程中，传输图像数据的格式并不固定，不同的计算机向不同的显示设备传输图像数据的格式不同，例如，计算机A向显示设备A传输图像的格式为A；计算机B向显示设备B传输图像数据的格式为B，其中，计算机A可以发送格式为A的图像数据，显示设备B可以接收格式为B的图像数据，因此，计算机A和显示设备B之间受到图像数据的格式限制，无法互相传输图像数据，造成图像数据传输设备之间兼容性差的问题。
针对由于采用多种格式的图像数据进行传输，并且图像数据的传输双方仅能传输特定格式的图像数据，使图像数据传输双方受图像数据的格式影响，造成图像数据传输设备兼容性差的问题，目前尚未提出有效的解决方案。
发明内容
本发明实施例提供了一种图像数据传输方法、装置以及存储介质、处理器，以至少解决由于采用多种格式的图像数据进行传输，并且图像数据的传输双方仅能传输特定格式的图像数据，使图像数据传输双方受图像数据的格式影响，造成图像数据传输设备兼容性差的技术问题。
根据本发明实施例的一个方面，提供了一种图像数据传输方法，将目标图像划分为分辨率不同的多个区域图像，其中，所述目标图像包括第一区域图像和第二区域图像，所述第一区域图像为注视点所在区域的图像，第二区域图像为所述目标图像中除所述第一区域图像之外的区域图像；以及传输所述多个区域图像中的头信息以及每个 区域图像中每个像素点的像素值。
可选地，所述将目标图像划分为分辨率不同的多个区域图像包括：将目标图像划分为多个区域，得到多个区域图像；为所述多个区域图像中的每个区域图像分配分辨率，其中，所述每个区域图像的分辨率不同。
可选地，所述为所述多个区域图像中的每个区域图像分配分辨率包括：为所述第一区域图像分配第一分辨率，其中，所述第一分辨率为所述目标图像的原始分辨率；为所述第二区域图像分配第二分辨率，其中，所述第二分辨率小于所述目标图像的原始分辨率。
可选地，所述头信息包括第一类头信息，其中，所述第一类头信息包括所述注视点的位置；传输所述多个区域图像中的头信息以及所述每个区域图像中每个像素点的像素值包括：传输第一类头信息；逐个传输每个区域图像中每个像素点的像素值。
可选地，所述头信息包括第二类头信息，其中，所述第二类头信息与所述每个区域图像一一对应；传输所述多个区域图像中的头信息以及所述每个区域图像中每个像素点的像素值包括：逐个传输所述每个区域图像的所述第二类头信息以及所述每个像素点的像素值。
可选地，所述第二类头信息由以下步骤确定：确定所述每个区域图像的形状、尺寸和分辨率；确定所述每个区域图像的定位点的位置；根据所述每个区域图像的形状、尺寸和分辨率以及所述定位点的位置确定所述每个区域图像的第二类头信息。
可选地，所述确定所述每个区域图像的定位点的位置包括以下至少之一：在所述区域图像为矩形或矩形环的情况下，所述定位点的位置包括以下至少之一：所述矩形或矩形环左上角点的位置、所述矩形或矩形环右上角点的位置、所述矩形或矩形环左下角点的位置、所述矩形或矩形环右下角点的位置、所述矩形或矩形环中心点的位置；在所述区域图像为圆形或圆环的情况下，所述定位点的位置为所述圆形或圆环的中心点的位置。
可选地，传输所述多个区域图像中的头信息以及所述每个区域图像中每个像素点的像素值包括以下至少之一：按照分辨率由高到低的顺序逐个传输所述每个区域图像；按照分辨率由低到高的顺序逐个传输所述每个区域图像；按照随机顺序逐个传输所述每个区域图像。
根据本发明的又一个实施例，还提供了一种存储介质，所述存储介质包括存储的程序，其中，所述程序运行时执行上述任一项所述的方法。
根据本发明的又一个实施例，还提供了一种处理器，所述处理器被设置为运行程序，其中，所述程序运行时执行上述任一项所述的方法。
在本发明实施例中，将目标图像划分为多个分辨率不同的区域图像，其中，第一区域图像为注视点所在区域的图像，第二区域为目标图像中除第一区域之外的区域图像，再按照包括头信息以及每个区域图像中每个像素点的像素值的图像数据的固定格式，逐个传输每个区域图像，从而在图像传输过程中按照固定格式的图像数据传输图像，可以便于图像数据的传输方和接收方的匹配，进而解决了由于采用多种格式的图像数据进行传输，并且图像数据的传输双方仅能传输特定格式的图像数据，使图像数据传输双方受图像数据的格式影响，造成图像数据传输设备兼容性差的技术问题。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的图像数据传输方法的流程图；
图2是根据本发明实施例的一种可选的图像区域划分的示意图；
图3是根据本发明实施例的图像数据传输装置的示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
根据本发明实施例，提供了一种图像数据传输方法实施例，需要说明的是，在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行，并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
图1是根据本发明实施例的图像数据传输方法的流程图，如图1所示，该方法包括如下步骤：
步骤S102，将目标图像划分为分辨率不同的多个区域图像，其中，目标图像包括第一区域图像和第二区域图像，第一区域图像为注视点所在区域的图像，第二区域图像为目标图像中除第一区域图像之外的区域图像；以及
步骤S104，传输多个区域图像中的头信息以及每个区域图像中每个像素点的像素值。
通过上述步骤，将目标图像划分为多个分辨率不同的区域图像，其中，第一区域图像为注视点所在区域的图像，第二区域为目标图像中除第一区域之外的区域图像，再按照包括头信息以及每个区域图像中每个像素点的像素值的图像数据的固定格式，逐个传输每个区域图像，从而在图像传输过程中按照固定格式的图像数据传输图像，可以便于图像数据的传输方和接收方的匹配，进而解决了由于采用多种格式的图像数据进行传输，并且图像数据的传输双方仅能传输特定格式的图像数据，使图像数据传输双方受图像数据的格式影响，造成图像数据传输设备兼容性差的技术问题。
在步骤S102中，可以根据注视点将目标图像划分为多个区域，其中，在目标图像内注视点所在的区域为第一区域图像，在目标图像内不包括注视点的区域为第二区域图像，便于根据用户的视觉习惯和实际需求对不同区域的图像分配不同的分辨率。
需要说明的是，注视点可以是用户所关注的点，用户在关注目标图像的情况下，用户的眼睛会先关注目标图像内的一个点，然后再以该点作为焦点关注目标图像，因此，用户关注图像的焦点即为注视点。
可选地，可以根据注视点将图像化为多个区域，每个区域图像的形状可以包括但不限于圆形、矩形、或椭圆形。
可选地，第一区域图像可以是目标图像展示的重点区域，第二区域图像可以是目标图像的背景区域。
可选地，注视点可以在第一区域图像的中间位置。
可选地，第二区域图像可以环绕在第一区域图像的周围。
可选地，目标图像可以包括多个第二区域图像。
可选地，多个第二区域图像可以依次环绕在上一区域图像的周围。例如，在将目标图像划分为多个圆形或圆环区域图像的情况下，以注视点为圆心，将目标图像划分为一个包括注视点的圆形区域图像，以及环绕该圆形区域图像的多个形状为同心圆环的区域图像，其中，注视点所在的圆形区域图像为第一区域图像，圆形区域以外的多个圆环为第二区域图像，其中，第一圆环的区域图像环绕在第一区域图像周围；第二圆环的区域图像环绕在第一圆环的区域图像周围；第三圆环的区域图像环绕在第二圆环的区域图像周围，依此类推得到多个形状为圆环的第二区域图像。需要说明的是，在目标图像为矩形的情况下，最外层第二区域图像的形状可以是外侧边为目标图像的矩形边框，内侧边为圆形的环。
作为一个可选的示例，将目标图像划分为三个区域图像，分别为区域图像A，区域图像B，以及区域图像C，其中，区域图像A为第一区域图像，区域图像B和区域图像C为第二区域图像。区域图像A为目标图像中以注视点为圆心的圆；区域图像B为圆环，该圆环以目标图像中的注视点为中心，以区域图像A为内圆；区域图像C为目标图像中，除了区域图像A和区域图像B的剩余部分。
可选地，可以将目标图像划分为多个同心圆。例如，在将目标图像划分为多个圆形的情况下，以注视点为圆心，将图像划分为多个同心圆。
作为一个可选的示例，将目标图像划分为三个区域图像，分别为区域图像A，区域图像B，以及区域图像C，其中，区域图像A为第一区域图像，区域图像B和区域图像C为第二区域图像。区域图像A为目标图像中以注视点为圆心的圆；区域图像B为目标图像中以注视点为圆心，半径大于区域图像A的圆，区域图像C的尺寸和形状与目标图像相同。
需要说明的是，在传输多个区域图像的过程中，重合部分的区域图像仅传输一次。
作为一个可选的示例，区域图像A为目标图像中以注视点为圆心的圆；区域图像B为目标图像中以注视点为圆心，半径大于区域图像A的圆，区域图像C的尺寸和形状与目标图像相同。在图像传输过程中，传输区域图像A，区域图像B中除区域图像A以外部分的图像，区域图像C中除区域图像B以外部分的图像。
在步骤S104中，头信息可以根据划分的多个区域图像确定，用于指示区域图像的轮廓和位置。每个区域图像中每个像素点的像素值可以是对应的头信息所确定的轮廓区域内每个像素点的像素值。
可选地，显示屏幕可以根据该头信息确定区域图像在显示屏幕上对应区域。
可选地，可以根据每个区域图像的分辨率，确定每个区域图像中的像素点数量。
可选地，可以按照光栅扫描的顺序传输每个区域图像中每个像素点的像素值。
作为一种可选的实施例，将目标图像划分为分辨率不同多个区域图像包括：将目标图像划分为多个区域，得到多个区域图像；为多个区域图像中的每个区域图像分配分辨率，其中，每个区域图像的分辨率不同。
采用本发明上述实施例，将目标图像划分为多个区域，得到多个区域图像，再为每个区域图像分配对应的分辨率，并按照分配的分辨率为对应的区域图像进行渲染，得到分辨率不同的多个区域图像，可以将目标图像划分为多个分辨率不同的区域图像，从而与直接按照目标图像的原始分辨率传输目标图像相比，为多个区域分配不同分辨率后的目标图像的数据量低于原始分辨率的目标图像的数据量，便于对目标图像的应用。
需要说明的是，目标图像可以是待传输的图像，将目标图形划分为多个区域，其中，目标图像中每个区域所代表的图像即为区域图像。
可选地，可以按照预定的形状，将目标图像划分为多个目标图像。
作为一个可选的示例，在预定的形状为圆形的情况下，可以在目标图像上绘制多个同心圆，将目标划分为一个中间的圆形和多个外围的圆环。
作为一个可选的示例，在预定的形状为矩形的情况下，可以在目标图像上绘制多个矩形，将目标划分为一个中间的矩形和多个外围的矩形环。
需要说明的是，图像包括均匀分布的多个像素点，每个像素点展示不同的颜色，多个颜色不同的像素点共同构成图像。分辨率是用于表示图像清晰度的参考量，其中，分辨率可以用像素点的数量表示，例如，分辨率为160×128，则表示水平方向含有160个像素点，垂直方向含有128个像素点。因此，可以通过改变图像内像素点的数量改变图像的分辨率。因此，图像的分辨率越高，图像内的像素点数量越多。通过为每个区域图像分配不同的分辨率，来改变对应的每个区域图像的清晰度。
需要说明的是，图像内的像素点越多，图像的数据量越大，其中，数据量可以是数据大小。例如，图像A的大小为5MB，则图像A的数据量为5兆字节。
可选地，为多个区域图像中的每个区域图像分配分辨率，可以通过渲染的方式为每个区域图像分配分辨率。
作为一种可选的实施例，为多个区域图像中的每个区域图像分配分辨率包括：为 第一区域图像分配第一分辨率，其中，第一分辨率为目标图像的原始分辨率；为第二区域图像分配第二分辨率，其中，第二分辨率小于目标图像的原始分辨率。
采用本发明上述实施例，将目标图像的原始分辨率作为第一区域图像的第一分辨率，将小于目标图像原始分辨率作为第二区域图像的分辨率，可以保证用户注视重点的第一区域图像清晰度，减弱背景区域的清晰度，可以在保证用户观看体验的情况下减小目标图像的数据量，便于图像传输。
需要说明的是，用户在观看任意图像(未向不同区域分配不同分辨率的图像)的过程中，用户主要关注点周围的内容，利用视觉的余光关注背景的内容，也就是说，在用户观看图像的过程中，距离关注点越近的区域用户观看的越清晰，距离关注点越远的区域用户观看的越模糊，因此，可以利用这一规律，在上述实施例中为第一区域图像分配较高的分辨率，为第二区域图像分配较低的分辨率，可以在不影响用户观看目标图像的用户体验的情况下，通过降低第二区域图像的分辨率来降低目标图像的数据量，便于图像传输。
可选地，在第二区域图像为多个的情况下，距离关注点越远的区域图像分配的分辨率越低，距离关注点越近的区域图像分配的分辨率越高。
作为一个可选的示例，在目标图像内，第一区域图像是以关注点为圆心的圆形，第二区域图像是以关注点为圆心环绕第一区域图像的多个圆环，第一区域图像分配的分辨率为目标图像的原始分辨率，第二区域图像分配的分辨率低于目标图像的原始分辨率，且圆环与关注点的距离越远，分配的分辨率越低。
可选地，在目标图像为多个第二区域图像的情况下，各区域图像可以按照与注视点距离由近及远的顺序，等比例降低为各区域图像分配的分辨率。例如，相邻的两个区域图像，距离关注点较远的区域图像的分辨率是距离关注点较近的区域图像的分辨率的1/N。
作为一个可选的示例，目标图像的原始分辨率为a，目标图像包括多个第二区域，其中，按照与注视点距离由近及远的顺序，多个第二区域的顺序一次为区域图像A，区域图像B。若分辨率下降的比例为50％，则第一区域图像分配的分辨率为a；区域图像A分配的分辨率为50％a；区域图像B分配的分辨率为50％*50％a＝25％a。
作为一种可选的实施例，为第二区域图像分配第二分辨率包括：通过对第二区域图像进行N倍下采样，将第二区域图像的分辨率转换为小于原始分辨率的第二分辨率。
采用本发明上述实施例，对第二区域图像进行下采样，第二区域图像的分辨率降低为第二分辨率，使第二分区域图像可以在不改变原显示内容的情况下确定降低第二 区域图像的分辨率。
需要说明的是，下采样(subsampled)，目的是为了降低图像的分辨率，减小图像的尺寸，使图像可以显示在低于图像分辨率的显示设备上。
可选地，对第二区域图像进行下采样，可以将第二区域图像中的多个像素点通过低通滤波器进行间隔采样，得到第二分辨率的第二区域图像。
作为一个可选地的示例，对将原尺寸为P*Q到的图像进行N倍下采样，可以得到尺寸为(P/N)*(Q/N)的分辨率图像。
需要说明的是，N应该是P和Q的公约数，如果原图像为矩形图像，就是将原始图像N*N窗口内的图像变成一个像素，这个像素点的值就是窗口内所有像素的均值。
作为一种可选的实施例，逐个传输多个区域图像中每个区域图像的图像数据包括：确定每个区域图像的头信息以及每个区域图像中每个像素点的像素值；传输每个区域图像的头信息以及每个区域图像中每个像素点的像素值。
采用本发明上述实施例，先确定每个区域图像中每个像素点的头信息和每个像素点的像素值，并在传输过程中传输包含每个区域图像的头信息以及每个区域图像中每个像素点的像素值的图像数据，可以便于接收方根据传输的图像数据还原每个区域图像。
作为一种可选的实施例，头信息包括第一类头信息，其中，第一类头信息包括注视点的位置；传输多个区域图像中的头信息以及每个区域图像中每个像素点的像素值包括：传输第一类头信息；逐个传输每个区域图像中每个像素点的像素值。
采用本发明上述实施例，在传输多个区域图像的过程中，可以传输根据目标图像中划分多个区域图像的注视点的位置确定的第一类头信息，和每个区域图像中的每个像素点的像素值，从而完成图像传输。
需要说明的是，在传输多个区域图像的过程包括图像数据的传输方和图像数据的接收方，图像数据的传输方预先将目标图像根据注视点信息，划分为包括注视点的第一区域图像和第二区域图像，然后在传输划分后的多个图像区域；图像数据的接收方中，预先存储将目标图像划分为多个区域图像的划分方式，图像数据仅需接收目标图像中划分多个区域图像的注视点的位置，便可还原每个区域图像的形状、位置、尺寸、分辨率等信息，从而确定每个区域图像对应的头信息。
采用本发明上述实施例，通过传输注视点的位置，再由图像接收方根据多个区域图像的划分方式确定每个区域图像对应的头信息，从而可以减少传输图像过程中所需 要传输的图像数据的数据量，加快数据传输效率。
可选地，在传输多个区域图像的过程中，还可以传输每个区域图像的定位点的位置信息，再逐个传输每个区域图像中每个像素点的像素值。
需要说明的是，定位点是用于确定每个区域图像位置而设置的点。
作为一个可选的示例，多个区域图像包括区域图像A和区域图像B，区域图像A中包括定位点A，区域图像B中包括定位点B，在传输图像数据的过程中，图像数据的传输方传输区域图像A的定位点A的位置，区域图像B的定位点B的位置，以及区域图像A和区域图像B的每个像素点的像素值。图像数据的接收方可以根据定位点A的位置和定位点B的位置，还原区域图像A和区域图像B，进而确定区域图像A的头信息和区域图像B的头信息，从而使图像数据的接收方能够得到区域图像A的头信息以及每个像素点的像素值，和区域图像B的头信息以及每个像素点的像素值。
作为一种可选的实施例，头信息包括第二类头信息，其中，第二类头信息与每个区域图像一一对应；传输多个区域图像中的头信息以及每个区域图像中每个像素点的像素值包括：逐个传输每个区域图像的第二类头信息以及每个像素点的像素值。
采用本发明上述实施例，逐个传输多个区域图像中每个区域图像第二类头信息以及每个像素点的像素值，从而完成图像传输。
作为一个可选的示例，多个区域图像包括区域图像A和区域图像B，在图像数据传输过程中，传输区域图像A对应的第二类头信息和每个像素点的像素值，然后传输区域图像B对应的第二类头信息和每个像素点的像素值。
作为一种可选的实施例，第二类头信息可以由以下步骤确定：确定每个区域图像的形状、尺寸和分辨率；确定每个区域图像的定位点的位置；根据每个区域图像的形状、尺寸和分辨率以及定位点的位置确定每个区域图像的第二类头信息。
采用本发明上述实施例，通过确定每个区域图像的形状、尺寸和分辨率，以及每个区域图像的定位点的位置，再根据每个区域图像的形状、尺寸和分辨率以及定位点的位置确定每个区域图像的第二类头信息，可以准确确定每个区域图像在目标图像中的位置和轮廓，确保传输图像的准确性。
可选地，每个区域图像可以包括多个定位点。
作为一种可选的实施例，确定每个区域图像的定位点的位置包括以下至少之一：在区域图像为矩形或矩形环的情况下，定位点的位置包括以下至少之一：矩形或矩形环左上角点的位置、矩形或矩形环右上角点的位置、矩形或矩形环左下角点的位置、 矩形或矩形环右下角点的位置、矩形或矩形环中心点的位置；在区域图像为圆形或圆环的情况下，定位点的位置为圆形或圆环的中心点的位置。
采用本发明上述实施例，可以在区域图像为不同形状的情况下，灵活地选择不同的定位点，使选择的定位点可以应用在多种形状的区域图像中。
作为一种可选的实施例，传输多个区域图像中的头信息以及每个区域图像中每个像素点的像素值可以包括以下至少之一：按照分辨率由高到低的顺序逐个传输每个区域图像；按照分辨率由低到高的顺序逐个传输每个区域图像；按照随机顺序逐个传输每个区域图像。
采用本发明上述实施例，分别传输分辨率不同的多个区域图像，并在上一区域图像传输完后，再传输下一区域图像，从而将每个区域图像单独传输，可以确保每个区域图像传输的准确性。
本发明还提供了一种优选实施例，该优选实施例提供了一种分层图像的码流标示方法。
本发明的图像传输方法和图像显示方法可以应用在VR设备与电脑之间。
在VR设备与电脑之间传输图像的过程中，传输全分辨率的图像会加大传输数据的需求。而在实际应用过程中，VR设备显示的图像通常是需要显示经过渲染处理后的图像。
可选地，VR设备显示的图像可以是经过注视点渲染处理的图像，其中，该图像中注视点周围的区域是与原图像分辨率相同的图像，其他区域显示的是低于原图像分辨率的图像。也就是说在整个屏幕显示区域中，不同区域图像的分辨率是不同的，因此实际传输过程中不需要传输全分辨率的图像。
本发明上述实施例可以应用在VR系统中，特别是在无线传输的VR系统中，该系统包括眼控单元，计算单元/图像发送方(PC或手机)，显示单元/图像接收方。
可选地，眼控单元可以用于确定用户注视点。
本发明提供的分层图像传输的流程为：
1.获得用户注视点。
2.根据注视点确定区域划分方式。
3.使用注视点渲染技术获得不同的区域图像，其中，每个区域图像的渲染分辨率不同。
4.按各区域图像的渲染分辨率逐个传输不同区域图像，直到所有区域图像都传完为止。
5.显示设备获得各区域图像后，确定各区域图像中每个像素点与屏幕像素点的对应关系。
6.将所有区域图像中的所有像素点显示在屏幕上。
可选地，在确定各区域图像中每个像素点与屏幕像素点的对应关系的过程中，对渲染分辨率比屏幕分辨率低的区域图像，采用插值法获取各区域图像的全分辨率，使各区域图像中每个像素点与屏幕像素点的一一对应。
可选地，根据注视点确定区域划分方式，可以根据注视点的位置指定重点区域的形状和大小，以及背景区域的形状和大小。
可选地，可以对于背景区域进行n倍下采样，重点区域不下采样，再将背景和重点区域以及各区域的位置和大小传给解码端。
可选地，重点区域可以继续分层，对于重点区域中的背景进行m倍下采样。
图2是根据本发明实施例的一种可选的图像区域划分的示意图，如图2所示，根据注视点的位置指定重点区域为圆形(区域1)，背景区域为图像中重点区域以外的区域，其中，背景区域包括圆环区域(区域2)和图像中除重点区域和圆环区域以外的区域(区域3)。重点区域为原图像的分辨率；背景区域中圆环区域的分辨率为原图像的分辨率的50％；背景区域中除重点区域和圆环区域以外的区域的分辨率为原图像的分辨率的25％。
在本发明上述实施例提供的分区域图像传输过程中，传输各区域图像的码流结构如下：
初始化时传输区域图像的数量K，每个区域图像的形状，以及每个区域图像的尺寸。
在传输每一帧图像的过程中，传输的码流格式如下：
第一个区域图像的位置(X,Y)，第一个区域图像的图像数据(第一个像素点的像素值，第二个像素点的像素值……按光栅扫描顺序排列)，第二个区域图像的位置，第二个区域图像的图像数据，……，第K个区域图像的位置，第K个区域图像的图像数据。
可选地，在图像传输过程中，先传重点区域图像(分辨率高的区域图像)，后传背 景区域(分辨率低的区域图像)。
可选地，最先传区域图像为第一个区域图像，最后传的区域图像为第K个区域图像。
可选地，每个区域图像的位置坐标信息，即每个区域图像的位置(X,Y)，可以是该区域图像的中心位置坐标，或该区域图像的左上角位置坐标等。
可选地，传输的每一帧图像数据中包括该区域图像所包含的，且上一个区域图像并不包含的坐标的像素数据。
可选地，在传输图像的过程中，可以按照光栅扫描顺序，依次传输图像中的每个像素点。
为了实现上述目的，根据本发明的另一方面，本发明实施例还提供了一种存储介质，存储介质包括存储的程序，其中，在程序运行时控制存储介质所在设备执行上述的图像数据传输方法。
为了实现上述目的，根据本发明的另一方面，本发明实施例还提供了一种处理器，处理器被设置为运行程序，其中，程序运行时执行上述的图像数据传输方法。
根据本发明实施例，还提供了一种图像数据传输装置实施例，需要说明的是，该图像数据传输装置可以用于执行本发明实施例中的图像数据传输方法，本发明实施例中的图像数据传输方法可以在该图像数据传输装置中执行。
图3是根据本发明实施例的图像数据传输装置的示意图，如图3所示，该装置可以包括：划分单元31，被设置为将目标图像划分为分辨率不同的多个区域图像，其中，目标图像包括第一区域图像和第二区域图像，第一区域图像为注视点所在区域的图像，第二区域图像为目标图像中除第一区域图像之外的区域图像；以及传输单元33，被设置为传输多个区域图像中的头信息以及每个区域图像中每个像素点的像素值。
需要说明的是，该实施例中的划分单元31可以被设置为执行本申请实施例中的步骤S102，该实施例中的传输单元33可以被设置为执行本申请实施例中的步骤S104。上述模块与对应的步骤所实现的示例和应用场景相同，但不限于上述实施例所公开的内容。
在本发明上述实施例中，将目标图像划分为多个分辨率不同的区域图像，其中，第一区域图像为注视点所在区域的图像，第二区域为目标图像中除第一区域之外的区域图像，再按照包括头信息以及每个区域图像中每个像素点的像素值的图像数据的固定格式，逐个传输每个区域图像，从而在图像传输过程中按照固定格式的图像数据传 输图像，可以便于图像数据的传输方和接收方的匹配，进而解决了由于采用多种格式的图像数据进行传输，并且图像数据的传输双方仅能传输特定格式的图像数据，使图像数据传输双方受图像数据的格式影响，造成图像数据传输设备兼容性差的技术问题。
作为一种可选的实施例，划分单元可以包括：划分模块，被设置为将目标图像划分为多个区域，得到多个区域图像；分配模块，被设置为为多个区域图像中的每个区域图像分配分辨率，其中，每个区域图像的分辨率不同。
作为一种可选的实施例，分配模块可以包括：第一分配子模块，被设置为为第一区域图像分配第一分辨率，其中，第一分辨率为目标图像的原始分辨率；第二分配子模块，被设置为为第二区域图像分配第二分辨率，其中，第二分辨率小于目标图像的原始分辨率。
作为一种可选的实施例，第二分配子模块可以包括：下采样模块，被设置为通过对第二区域图像进行下采样，将第二区域图像的分辨率转换为小于原始分辨率的第二分辨率。
作为一种可选的实施例，头信息包括第一类头信息，其中，第一类头信息包括注视点的位置；传输单元可以包括：第一传输模块，被设置为传输第一类头信息；第二传输模块，被设置为逐个传输每个区域图像中每个像素点的像素值。
作为一种可选的实施例，头信息包括第二类头信息，其中，第二类头信息与每个区域图像一一对应；传输单元可以包括：第三传输模块，被设置为逐个传输每个区域图像的第二类头信息以及每个像素点的像素值。
作为一种可选的实施例，第二类头信息由以下模块确定：第一确定模块，被设置为确定每个区域图像的形状、尺寸和分辨率；第二确定模块，被设置为确定每个区域图像的定位点的位置；第三确定模块，被设置为根据每个区域图像的形状、尺寸和分辨率以及定位点的位置确定每个区域图像的第二类头信息。
作为一种可选的实施例，第二确定模块可以包括以下至少之一：矩形确定模块，被设置为在区域图像为矩形或矩形环的情况下，定位点的位置包括以下至少之一：矩形或矩形环左上角点的位置、矩形或矩形环右上角点的位置、矩形或矩形环左下角点的位置、矩形或矩形环右下角点的位置、矩形或矩形环中心点的位置；圆形确定模块，被设置为在区域图像为圆形或圆环的情况下，定位点的位置为圆形或圆环的中心点的位置。
作为一种可选的实施例，传输单元包括以下至少之一：第四传输模块，被设置为按照分辨率由高到低的顺序逐个传输每个区域图像；第五传输模块，被设置为按照分 辨率由低到高的顺序逐个传输每个区域图像；第六传输模块，被设置为按照随机顺序逐个传输每个区域图像。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
在本发明的上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的技术内容，可通过其它的方式实现。其中，以上所描述的装置实施例仅仅是示意性的，例如所述单元的划分，可以为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，单元或模块的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

  1. 一种图像数据传输方法，包括：
    将目标图像划分为分辨率不同的多个区域图像，其中，所述目标图像包括第一区域图像和第二区域图像，所述第一区域图像为注视点所在区域的图像，第二区域图像为所述目标图像中除所述第一区域图像之外的区域图像；以及
    传输所述多个区域图像中的头信息以及每个区域图像中每个像素点的像素值。
  2. 根据权利要求1所述的方法，其中，所述将目标图像划分为分辨率不同的多个区域图像包括：
    将目标图像划分为多个区域，得到多个区域图像；
    为所述多个区域图像中的每个区域图像分配分辨率，其中，所述每个区域图像的分辨率不同。
  3. 根据权利要求2所述的方法，其中，所述为所述多个区域图像中的每个区域图像分配分辨率包括：
    为所述第一区域图像分配第一分辨率，其中，所述第一分辨率为所述目标图像的原始分辨率；
    为所述第二区域图像分配第二分辨率，其中，所述第二分辨率小于所述目标图像的原始分辨率。
  4. 根据权利要求1所述的方法，其中，
    所述头信息包括第一类头信息，其中，所述第一类头信息包括所述注视点的位置；
    传输所述多个区域图像中的头信息以及所述每个区域图像中每个像素点的像素值包括：
    传输第一类头信息；
    逐个传输每个区域图像中每个像素点的像素值。
  5. 根据权利要求1所述的方法，其中，
    所述头信息包括第二类头信息，其中，所述第二类头信息与所述每个区域图像一一对应；
    传输所述多个区域图像中的头信息以及所述每个区域图像中每个像素点的像素值包括：
    逐个传输所述每个区域图像的所述第二类头信息以及所述每个像素点的像素值。
  6. 根据权利要求5所述的方法，其中，所述第二类头信息由以下步骤确定：
    确定所述每个区域图像的形状、尺寸和分辨率；
    确定所述每个区域图像的定位点的位置；
    根据所述每个区域图像的形状、尺寸和分辨率以及所述定位点的位置确定所述每个区域图像的第二类头信息。
  7. 根据权利要求6所述的方法，其中，所述确定所述每个区域图像的定位点的位置包括以下至少之一：
    在所述区域图像为矩形或矩形环的情况下，所述定位点的位置包括以下至少之一：所述矩形或矩形环左上角点的位置、所述矩形或矩形环右上角点的位置、所述矩形或矩形环左下角点的位置、所述矩形或矩形环右下角点的位置、所述矩形或矩形环中心点的位置；
    在所述区域图像为圆形或圆环的情况下，所述定位点的位置为所述圆形或圆环的中心点的位置。
  8. 根据权利要求1所述的方法，其中，所述传输所述多个区域图像中的头信息以及所述每个区域图像中每个像素点的像素值包括以下至少之一：
    按照分辨率由高到低的顺序逐个传输所述每个区域图像；
    按照分辨率由低到高的顺序逐个传输所述每个区域图像；
    按照随机顺序逐个传输所述每个区域图像。
  9. 一种存储介质，其中，所述存储介质包括存储的程序，在所述程序运行时控制所述存储介质所在设备执行权利要求1至8中任意一项所述的图像数据传输方法。
  10. 一种处理器，其中，所述处理器被设置为运行程序，所述程序运行时执行权利要求1至8中任意一项所述的图像数据传输方法。
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