WO2017201893A1 - Procédé et dispositif de traitement de vidéo - Google Patents

Procédé et dispositif de traitement de vidéo Download PDF

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Publication number
WO2017201893A1
WO2017201893A1 PCT/CN2016/095796 CN2016095796W WO2017201893A1 WO 2017201893 A1 WO2017201893 A1 WO 2017201893A1 CN 2016095796 W CN2016095796 W CN 2016095796W WO 2017201893 A1 WO2017201893 A1 WO 2017201893A1
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WIPO (PCT)
Prior art keywords
pixel
displayed
value
gain value
gain
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PCT/CN2016/095796
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English (en)
Chinese (zh)
Inventor
郑泽龙
王云华
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Shenzhen TCL Digital Technology Co Ltd
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Shenzhen TCL Digital Technology Co Ltd
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440263—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA

Definitions

  • the present invention relates to the field of television technologies, and in particular, to a video processing method and apparatus.
  • HDR High-Dynamic. Range, high dynamic range
  • the dark and bright details of the display technology are very good, resulting in very good display.
  • the HDR picture has been enlarged for the picture itself, when the picture ratio is switched, with the traditional VESA (Video Electronics Standards Association, Video Electronics Standards Association) screens are very different.
  • the current physical resolution of traditional VESA displays is usually 1920x1080, which is suitable for 16:9 aspect ratio, while HDR video tends to have a ratio of 4:3, in physics.
  • the resolution of the 1920x1080 display screen is 4:3, the screen will be abnormally stretched due to the mismatch between the physical resolution of the display and the video frame to be played.
  • the main purpose of the present invention is to provide a video processing method and apparatus, which aims to solve the technical problem that the physical resolution of the display screen does not match the ratio of the video image to be played in the prior art, which may result in abnormal stretching of the screen and poor playback performance.
  • the present invention provides a video processing method, where the video processing method includes:
  • the step of acquiring the first pixel to be deleted in the first pixel includes:
  • the step of obtaining the first pixel point that the difference between the gain values in the picture frame to be displayed and the horizontally adjacent pixel points in the to-be-displayed video is less than a preset threshold includes:
  • each of the pixel points is a pixel point whose gain value is greater than a preset gain value.
  • the preset gain value is half of a maximum value of the gain.
  • the step of determining a gain value of the screen area outside the current display area in the display screen according to the gain value of the second pixel point includes:
  • the gain value at the corresponding position in the screen area outside the current display area in the display screen is determined according to the average value of the gain value of the second pixel point of each line.
  • the video processing method further includes the following steps:
  • the first pixel that obtains a difference between the gain value of the image frame to be displayed and the pixel adjacent to the horizontal direction in the to-be-displayed video is less than a preset threshold. Point the steps.
  • the present invention further provides a video processing apparatus, where the video processing apparatus includes:
  • An acquiring module configured to acquire a first pixel point that has a difference between a gain value in a picture frame to be displayed and a pixel in a horizontal direction that is smaller than a preset threshold, and obtain a to-be-deleted in the first pixel First pixel point;
  • a deleting module configured to delete the first pixel to be deleted in the picture frame to be displayed, so that the width of the picture frame to be displayed is equal to the width of the current display area
  • the obtaining module is further configured to obtain a gain value of the second pixel in the vertical direction and the current display area in the picture frame to be displayed;
  • a determining module configured to determine, according to a gain value of the second pixel, a gain value of a screen area outside the current display area in the display screen, according to a gain value of the second pixel point when displaying the picture frame to be displayed Adjusting a gain value of an edge pixel in the current display area.
  • the obtaining module includes:
  • a first acquiring unit configured to acquire a quantity value of a pixel point in a horizontal direction beyond the current display area in the picture frame to be displayed, and obtain a difference value of a gain value between adjacent pixel points in the horizontal direction is smaller than a preset The number of thresholds;
  • a determining unit configured to determine, according to the obtained quantity value and the number of times, the number of first pixel points in the first pixel point group in which the set of gain value differences is less than a preset threshold, wherein the first pixel point Each of the first pixels in the group is adjacent to each other, and the first pixel to be deleted is determined according to the number of the first pixel points in the first pixel group that are smaller than the preset threshold.
  • the obtaining module is further configured to:
  • each of the pixel points is a pixel point whose gain value is greater than a preset gain value.
  • the preset gain value is half of a maximum value of the gain.
  • the determining module comprises:
  • a second acquiring unit configured to acquire a gain value mean value of the second pixel point of each row
  • the determining unit determines a gain value at a corresponding position in the screen area outside the current display area in the display screen according to the average value of the gain value of the second pixel point of each line.
  • the acquiring module is further configured to: acquire a proportional mode of the to-be-displayed video screen, and obtain a picture frame to be displayed in the to-be-displayed video that is adjacent to the horizontal direction when the obtained proportional mode does not match the physical resolution of the display screen.
  • the difference between the gain values between the pixels is less than the first pixel of the preset threshold.
  • the video processing method and apparatus provided by the present invention in which the resolution of the horizontal direction and the physical resolution are deleted by deleting the first pixel point whose difference value of the gain values between adjacent pixel points in the horizontal direction is smaller than a preset threshold value. Rate matching, and adjust the gain of the edge of the current display area in the display area by the gain value in the vertical direction, thereby ensuring a smooth transition of the edge area of the picture frame to be displayed during display; meanwhile, the adjustment scheme only deletes the gain value.
  • the close pixels ensure the display of the video to be displayed.
  • FIG. 1 is a schematic flow chart of an embodiment of a video processing method according to the present invention.
  • FIG. 2 is a schematic diagram showing a comparison of display effects of videos to be played in different scale modes in the video processing method of the present invention
  • FIG. 3 is a schematic diagram of functional modules of an embodiment of a video processing device according to the present invention.
  • the invention provides a video processing method.
  • FIG. 1 is a schematic flowchart of a video processing method according to an embodiment of the present invention.
  • This embodiment provides a thermal video processing method, where the video processing method includes:
  • Step S10 Obtain a first pixel point that is smaller than a preset threshold value, and obtain a first pixel to be deleted in the first pixel point. pixel;
  • the step of “acquiring the first pixel point that the difference between the gain values in the picture frame to be displayed and the horizontally adjacent pixel points in the picture to be displayed is smaller than a preset threshold” includes:
  • the gain value of each pixel in the image frame to be displayed is first obtained, and the difference between the gain values of the adjacent pixels in the horizontal direction and the horizontal direction is calculated according to the preset direction, and the preset direction may be
  • the coordinate value of the X-axis in the coordinate information of the pixel gradually becomes larger or the coordinate value of the X-axis in the coordinate information of the pixel gradually becomes smaller, and if the difference between the gain values of two adjacent pixels in the horizontal direction is smaller than the pre-pre
  • two adjacent pixels are taken as the first pixel.
  • the gain value difference between each of the first pixel points and the first pixel point and the adjacent pixel point may be recorded, and the difference in the gain value may be obtained when the first pixel point to be deleted in the first pixel point is acquired.
  • the video to be played in this embodiment may be an HDR video, and there are many pixels with similar gain values. Since the HDR picture is relatively bright and the highlight area is relatively large, the pixel point whose gain value is greater than the preset gain value may be obtained first, and the pixel point whose gain value is greater than the preset gain value is obtained from the adjacent pixel point in the horizontal direction. A pixel point whose gain value difference is less than a preset threshold is used as the first pixel point, and the preset gain value may be half of the gain maximum value, such as 128.
  • the quantity value of the first pixel to be deleted may be first obtained, and the first pixel to be deleted is selected in the first pixel according to the quantity.
  • the pixel, that is, the step of “acquiring the first pixel to be deleted in the first pixel” includes:
  • the physical resolution of the screen is 1920 ⁇ 1080, and the proportion mode of the video to be played is 4:3.
  • the picture frame to be played is out of the current display area in the horizontal direction, that is, the current display area is exceeded in the horizontal direction.
  • the gain value between adjacent pixel points is calculated to be less than the preset threshold, the number of times the difference of the gain values is less than the preset threshold is added, for example, setting a preset.
  • the threshold is 10, and the initial value of the number of times less than the preset value is 0, then:
  • the color gain value between each adjacent pixel point is continuously calculated according to the increasing coordinate order of the X-axis, and the number of times the adjacent pixel point gain value difference is less than the preset threshold value is updated until all adjacent pixel points are calculated.
  • the difference value of the gain value is obtained, and the final value of the number of times the difference value of the adjacent pixel point gain value is less than the preset threshold value is obtained. It can be understood that, when the gain value difference between the pixel point and the adjacent pixel point is calculated each time in order, if the difference between the gain value of the pixel point and the adjacent pixel point is less than a preset threshold, then The number of times the difference between the adjacent pixel point gain values is less than the preset threshold is increased by one.
  • the pixel points are sequentially traversed to coordinate values of 50, 51, and 52, and the gain values of the respective pixel points are 121, respectively.
  • the difference between the gain value of the pixel 50 and the pixel 51 is 2 is less than the preset threshold 10
  • the number of times the difference value of the adjacent pixel point gain value is less than the preset threshold is increased by 1, if the pixel point 51
  • the difference between the gain value and the pixel point 52 is less than the preset threshold value 10
  • the number of times the adjacent pixel point gain value difference is less than the preset threshold value is incremented by one.
  • the difference between the gain values between consecutive multiple adjacent pixel points is less than the preset threshold
  • the number of times the adjacent pixel point gain value difference is less than the preset threshold is directly added, for example, When traversing each pixel point, traversing to pixel points whose coordinate values are sequentially 50, 51, and 52, and the gain values of the respective pixel points are 121, 123, and 120, respectively, due to the difference in gain value between the pixel point 50 and the pixel point 51.
  • the value of 2 is less than the preset threshold 10
  • the difference between the gain value of the pixel 51 and the pixel 52 is less than the preset threshold 10
  • the difference between the adjacent pixel gain value and the preset threshold is directly added. 1.
  • the gain of each group is obtained when the difference of the gain values of the adjacent pixel points is less than the preset value.
  • the number of pixels to be deleted in the adjacent pixel group whose value difference is less than the preset threshold is 19/10 ⁇ 2, that is, each time the difference of the gain values of adjacent pixels is less than the preset value, The two adjacent pixels need to be deleted.
  • each set of adjacent pixel points whose difference value is smaller than a preset threshold The number of pixels that need to be deleted in the group is 1, and can be deleted from small to large in the order of coordinates until 19 pixels are deleted.
  • the first pixel point may be divided into two sub-sets from the middle coordinate of one line, and half of the number is deleted in the set of the left and right sides respectively.
  • the coordinates of the pixel points deleted on the left and right sides are approximately symmetric with respect to the intermediate coordinate point. .
  • the present invention may also obtain the first pixel to be deleted by other means, and is not limited to the above manner.
  • the first pixel to be deleted is determined directly according to the number of pixels that are exceeded.
  • Step S20 deleting the first pixel to be deleted in the picture frame to be displayed, so that the width of the picture frame to be displayed is equal to the width of the current display area;
  • the number of pixel points in the picture frame to be displayed is equal to the number of pixel points of the current display area, even if the width of the picture frame to be displayed is equal to the width of the current display area.
  • Step S30 Acquire a gain value of a second pixel point in a vertical direction and a current display area in the picture frame to be displayed;
  • the display ratio corresponding to the 1920 ⁇ 1080 resolution is 16:9
  • the display effect of the 16:9 video is as shown in the left diagram of FIG. 2
  • the display effect of the 4:3 video is shown in FIG. 2.
  • the display area of the display screen of 1920 ⁇ 1080 resolution is exceeded, and the second pixel point beyond the current display area can be determined by the coordinate values of the respective pixel points.
  • the pixel gain value can be obtained by averaging the three primary color gain values.
  • BGain 30
  • Step S40 determining a gain value of the screen area outside the current display area in the display screen according to the gain value of the second pixel point, to adjust the edge pixel point in the current display area according to the gain value of the second pixel point when displaying the picture frame to be displayed.
  • Gain value determining a gain value of the screen area outside the current display area in the display screen according to the gain value of the second pixel point, to adjust the edge pixel point in the current display area according to the gain value of the second pixel point when displaying the picture frame to be displayed.
  • the edge pixel points in the current display area are the upper and lower edges of the current display area, for example, the pixel point of the top row of the current display area and the pixel point of the bottom row, and of course, the top two rows of the current display area.
  • the pixel points and the pixels of the bottom two rows, the number of rows of pixels can be set by the user according to the display needs.
  • step S40 includes:
  • the gain value at the corresponding position in the screen area outside the current display area in the display screen is determined according to the average value of the gain value of the second pixel point of each line.
  • the screen area outside the current display area is the black pixel point area at the edge of the display screen, and the screen area outside the current display area can be determined by determining the black pixel point area.
  • the gain value of each line of the screen area outside the current display area in the scheme can be directly obtained from the mean value of the gain value at the corresponding position in the video frame to be displayed.
  • the to-be-displayed picture frame of the first pixel to be deleted may be directly displayed, and the gain value of the screen area outside the current display area in the current display area may be adjusted according to the gain value of the second pixel to implement the image to be displayed.
  • the display of the frame that is, the display of the picture frame to be displayed in each frame is processed and displayed separately; or, after step S40, the gain value of the screen area outside the current display area in the determined display screen and the deletion of the first pixel to be deleted are deleted.
  • the picture frame association is displayed, and when all the picture frames to be displayed are processed, the picture frames to be displayed for deleting the first pixel to be deleted are displayed according to the gain values associated with the picture frames to be displayed.
  • step S10 when the ratio mode of the video to be played matches the physical resolution of the display screen, no processing is performed, that is, before step S10, the following:
  • step S10 is performed.
  • the resolution of the display screen may be 1920 ⁇ 1080, and the ratio mode is 16:9.
  • the ratio mode of the video to be played is 4:3
  • the ratio mode of the to-be-played video and the display screen are The resolution does not match.
  • the video processing method in this embodiment is configured to remove the first pixel point whose difference value between the adjacent pixel points in the horizontal direction is smaller than a preset threshold, so that the resolution in the horizontal direction matches the physical resolution, and
  • the gain of the edge of the current display area in the display area is adjusted by the gain value in the vertical direction, thereby ensuring a smooth transition of the edge area of the picture frame to be displayed during display; at the same time, the adjustment scheme only deletes pixels with similar gain values. , to ensure the display of the video to be displayed.
  • the invention also proposes a video processing device.
  • FIG. 3 is a schematic diagram of functional modules of an embodiment of a video processing device according to the present invention.
  • the functional module diagram shown in FIG. 3 is merely an exemplary diagram of a preferred embodiment, and those skilled in the art can surround the functional modules of the video processing apparatus shown in FIG. It is easy to add a new function module; the name of each function module is a custom name, which is only used to assist in understanding various program function blocks of the video processing device, and is not used to limit the technical solution of the present invention.
  • the core of the technical solution of the present invention is The functions to be achieved by the function modules that each define the name.
  • This embodiment provides a video processing device, where the video processing device includes:
  • the obtaining module 10 is configured to obtain a first pixel point where a difference between a gain value in a picture frame to be displayed and a horizontally adjacent pixel point in the to-be-displayed video is less than a preset threshold, and obtain a to-be-preserved in the first pixel Delete the first pixel;
  • the obtaining module is further configured to:
  • the gain value of each pixel in the image frame to be displayed is first obtained, and the difference between the gain values of the adjacent pixels in the horizontal direction and the horizontal direction is calculated according to the preset direction, and the preset direction may be
  • the coordinate value of the X-axis in the coordinate information of the pixel gradually becomes larger or the coordinate value of the X-axis in the coordinate information of the pixel gradually becomes smaller, and if the difference between the gain values of two adjacent pixels in the horizontal direction is smaller than the pre-pre
  • two adjacent pixels are taken as the first pixel.
  • the gain value difference between each of the first pixel points and the first pixel point and the adjacent pixel point may be recorded, and the difference in the gain value may be obtained when the first pixel point to be deleted in the first pixel point is acquired.
  • the video to be played in this embodiment may be an HDR video, and there are many pixels with similar gain values. Since the HDR picture is relatively bright and the highlight area is relatively large, the pixel point whose gain value is greater than the preset gain value may be obtained first, and the pixel point whose gain value is greater than the preset gain value is obtained from the adjacent pixel point in the horizontal direction. A pixel point whose gain value difference is less than a preset threshold is used as the first pixel point, and the preset gain value may be half of the gain maximum value, such as 128.
  • the acquisition module 10 includes:
  • a first acquiring unit configured to acquire a quantity value of a pixel point in a picture frame to be displayed that exceeds a current display area in a horizontal direction, and obtain a number of times that a difference value of a gain value between adjacent pixel points in a horizontal direction is less than a preset threshold;
  • a determining unit configured to determine, according to the obtained quantity value and the number of times, the number of first pixel points in the first pixel point group in which the set of gain value differences is less than a preset threshold, wherein the first pixel point
  • a preset threshold configured to determine, according to the obtained quantity value and the number of times, the number of first pixel points in the first pixel point group in which the set of gain value differences is less than a preset threshold, wherein the first pixel point
  • Each of the first pixels in the group is adjacent to each other, and the first pixel to be deleted is determined according to the number of first pixels to be deleted in the first pixel group in which each set of gain value difference is less than a preset threshold.
  • the physical resolution of the screen is 1920 ⁇ 1080, and the proportion mode of the video to be played is 4:3.
  • the picture frame to be played is out of the current display area in the horizontal direction, that is, the current display area is exceeded in the horizontal direction.
  • the gain value between adjacent pixel points is calculated to be less than the preset threshold, the number of times the difference of the gain values is less than the preset threshold is added, for example, setting a preset.
  • the threshold is 10, and the initial value of the number of times less than the preset value is 0, then:
  • the color gain value between each adjacent pixel point is continuously calculated according to the increasing coordinate order of the X-axis, and the number of times the adjacent pixel point gain value difference is less than the preset threshold value is updated until all adjacent pixel points are calculated.
  • the difference value of the gain value is obtained, and the final value of the number of times the difference value of the adjacent pixel point gain value is less than the preset threshold value is obtained. It can be understood that, when the gain value difference between the pixel point and the adjacent pixel point is calculated each time in order, if the difference between the gain value of the pixel point and the adjacent pixel point is less than a preset threshold, then The number of times the difference between the adjacent pixel point gain values is less than the preset threshold is increased by one.
  • the pixel points are sequentially traversed to coordinate values of 50, 51, and 52, and the gain values of the respective pixel points are 121, respectively.
  • the difference between the gain value of the pixel 50 and the pixel 51 is 2 is less than the preset threshold 10
  • the number of times the difference value of the adjacent pixel point gain value is less than the preset threshold is increased by 1, if the pixel point 51
  • the difference between the gain value and the pixel point 52 is less than the preset threshold value 10
  • the number of times the adjacent pixel point gain value difference is less than the preset threshold value is incremented by one.
  • the difference between the gain values between consecutive multiple adjacent pixel points is less than the preset threshold
  • the number of times the adjacent pixel point gain value difference is less than the preset threshold is directly added, for example, When traversing each pixel point, traversing to pixel points whose coordinate values are sequentially 50, 51, and 52, and the gain values of the respective pixel points are 121, 123, and 120, respectively, due to the difference in gain value between the pixel point 50 and the pixel point 51.
  • the value of 2 is less than the preset threshold 10
  • the difference between the gain value of the pixel 51 and the pixel 52 is less than the preset threshold 10
  • the difference between the adjacent pixel gain value and the preset threshold is directly added. 1.
  • the gain of each group is obtained when the difference of the gain values of the adjacent pixel points is less than the preset value.
  • the number of pixels to be deleted in the adjacent pixel group whose value difference is less than the preset threshold is 19/10 ⁇ 2, that is, each time the difference of the gain values of adjacent pixels is less than the preset value, The two adjacent pixels need to be deleted.
  • the number of the first pixel to be deleted is 20
  • the number of times the difference between the gain values of the adjacent pixels is less than the preset threshold is, for example, 100
  • the number of deletions is 1 each time, and the number of the pixels to be deleted is small. Delete to large, until you delete 19 pixels.
  • the first pixel point may be divided into two sub-sets from the middle coordinate of one line, and half of the number is deleted in the set of the left and right sides respectively.
  • the coordinates of the pixel points deleted on the left and right sides are approximately symmetric with respect to the intermediate coordinate point. .
  • the present invention may also obtain the first pixel to be deleted by other means, and is not limited to the above manner.
  • the first pixel to be deleted is determined directly according to the number of pixels that are exceeded.
  • the deleting module 20 is configured to delete the first pixel to be deleted in the picture frame to be displayed, so that the width of the picture frame to be displayed is equal to the width of the current display area;
  • the number of pixel points in the picture frame to be displayed is equal to the number of pixel points of the current display area, even if the width of the picture frame to be displayed is equal to the width of the current display area.
  • the obtaining module 10 is further configured to obtain a gain value of the second pixel in the vertical direction and the current display area in the picture frame to be displayed;
  • the display ratio corresponding to the 1920 ⁇ 1080 resolution is 16:9
  • the display effect of the 16:9 video is as shown in the left diagram of FIG. 2
  • the display effect of the 4:3 video is shown in FIG. 2.
  • the display area of the display screen of 1920 ⁇ 1080 resolution is exceeded, and the second pixel point beyond the current display area can be determined by the coordinate values of the respective pixel points.
  • the pixel gain value can be obtained by averaging the three primary color gain values.
  • BGain 30
  • the determining module 30 is configured to determine, according to the gain value of the second pixel point, a gain value of the screen area outside the current display area in the display screen, to adjust the current display area according to the gain value of the second pixel point when displaying the picture frame to be displayed The gain value of the edge pixel.
  • the edge pixel points in the current display area are the upper and lower edges of the current display area, for example, the pixel point of the top row of the current display area and the pixel point of the bottom row, and of course, the top two rows of the current display area.
  • the pixel points and the pixels of the bottom two rows, the number of rows of pixels can be set by the user according to the display needs.
  • the method of adjusting the gain value of the screen area outside the current display area according to the acquired gain value may be The adjustment is based on the average gain, ie the determination module 30 comprises:
  • a second acquiring unit configured to acquire a gain value mean value of the second pixel point of each row
  • the determining unit determines a gain value at a corresponding position in the screen area outside the current display area in the display screen according to the average value of the gain value of the second pixel point of each line.
  • the screen area outside the current display area is the black pixel point area at the edge of the display screen, and the screen area outside the current display area can be determined by determining the black pixel point area.
  • the gain value of each line of the screen area outside the current display area in the scheme can be directly obtained from the mean value of the gain value at the corresponding position in the video frame to be displayed.
  • the picture frame to be displayed for deleting the first pixel to be deleted may be directly displayed, and according to the gain value of the second pixel Adjusting the gain value of the screen area outside the current display area in the current display area to realize the display of the picture frame to be displayed, that is, displaying the picture frame to be displayed in each frame separately processed and displayed; or, in the gain value according to the second pixel point
  • the gain value of the screen area outside the current display area in the determined display screen is associated with the to-be-displayed picture frame to delete the first pixel to be deleted, and at all When the processing of the picture frame to be displayed is completed, the picture frames to be displayed for deleting the first pixel to be deleted are displayed according to the gain values associated with the picture frames to be displayed.
  • the obtaining module 10 is further configured to obtain a proportional mode of the to-be-displayed video screen, and When the acquired ratio mode does not match the physical resolution of the display screen, the first pixel point whose difference between the gain values in the image frame to be displayed and the horizontally adjacent pixel points in the to-be-displayed video is less than a preset threshold is obtained.
  • the resolution of the display screen may be 1920 ⁇ 1080, and the ratio mode is 16:9.
  • the ratio mode of the video to be played is 4:3
  • the ratio mode of the to-be-played video and the display screen are The resolution does not match.
  • the video processing device of the embodiment is configured to remove the first pixel point whose difference value between the adjacent pixel points in the horizontal direction is smaller than a preset threshold, so that the resolution in the horizontal direction matches the physical resolution, and The gain of the edge of the current display area in the display area is adjusted by the gain value in the vertical direction, thereby ensuring a smooth transition of the edge area of the picture frame to be displayed during display; at the same time, the adjustment scheme only deletes pixels with similar gain values. , to ensure the display of the video to be displayed.
  • the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better.
  • Implementation Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a cloud server, an air conditioner, or a network device, etc.) to perform the methods of various embodiments of the present invention.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

L'invention concerne un procédé de traitement de vidéo, le procédé de traitement de vidéo consistant : à acquérir, à partir d'un cadre d'image à afficher dans une vidéo à afficher, des premiers points de pixel, la différence entre des valeurs de gain des premiers points de pixel et des points de pixel adjacents dans une direction horizontale étant inférieure à une valeur de seuil préréglée, et à acquérir un premier point de pixel à supprimer à partir des premiers points de pixel ; à supprimer le premier point de pixel à supprimer à partir du cadre d'image à afficher, de façon à permettre à la largeur du cadre d'image à afficher d'être égale à la largeur de la région d'affichage actuelle ; à acquérir la valeur de gain d'un second point de pixel situé au-delà de la région d'affichage actuelle dans une direction verticale dans le cadre d'image à afficher ; et à déterminer, en fonction de la valeur de gain du second point de pixel, la valeur de gain de la région d'écran de l'écran d'affichage à l'extérieur de la région d'affichage actuelle, de façon à régler, selon la valeur de gain du second point de pixel, la valeur de gain d'un point de pixel de bord dans la région d'affichage actuelle, lorsque le cadre d'image à afficher est affiché. L'invention concerne en outre un dispositif de traitement de vidéo. La présente invention garantit l'effet d'affichage de la vidéo à afficher.
PCT/CN2016/095796 2016-05-24 2016-08-18 Procédé et dispositif de traitement de vidéo Ceased WO2017201893A1 (fr)

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