WO2016123782A1 - Procédé de traitement de modèle, et dispositif associé - Google Patents

Procédé de traitement de modèle, et dispositif associé Download PDF

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Publication number
WO2016123782A1
WO2016123782A1 PCT/CN2015/072344 CN2015072344W WO2016123782A1 WO 2016123782 A1 WO2016123782 A1 WO 2016123782A1 CN 2015072344 W CN2015072344 W CN 2015072344W WO 2016123782 A1 WO2016123782 A1 WO 2016123782A1
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Prior art keywords
template
binarized block
block template
binarized
pixel
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PCT/CN2015/072344
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English (en)
Chinese (zh)
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陈旭
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华为技术有限公司
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Priority to PCT/CN2015/072344 priority Critical patent/WO2016123782A1/fr
Priority to CN201580001246.3A priority patent/CN105519110B/zh
Publication of WO2016123782A1 publication Critical patent/WO2016123782A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters

Definitions

  • the present invention relates to the field of video coding and decoding, and in particular to a template processing method and related equipment.
  • hybrid coding structures are commonly used for encoding and decoding video sequences.
  • Current prediction techniques typically include both intra prediction and inter prediction techniques.
  • the intra prediction technique uses the spatial pixel information of the current image block to remove redundant information of the current image block to obtain a residual.
  • the inter prediction technique removes redundant information of the current image block using the encoded or decoded image pixel information adjacent to the current image block to obtain a residual.
  • an image adjacent to a current image block for inter prediction is referred to as a reference image.
  • the 3D video codec involves the encoding and decoding of the depth map, wherein the depth map can reflect the distance of the object in the scene to the camera, and the depth map has completely different characteristics from the natural image (for example, the texture image/color image).
  • the depth map consists of most of the flat areas and a small number of sharp edges.
  • the purpose of the depth map is not directly for viewing, but as an auxiliary tool for viewpoint synthesis.
  • Traditional coding tools have high compression efficiency in the flat portion of the depth image and a large margin in the sharp edge region. The coding error directly leads to large distortion in the synthesized virtual view.
  • Depth Map Modeling Mode DMM is introduced into the 3D video codec framework as an optional intra prediction mode.
  • the block division technique can also be used for the 3D video codec process.
  • wedgelet division is a common method.
  • the principle is that an image block can be divided into two regions having an arbitrary shape by a block division technique, and each region uses a prediction value for encoding and decoding operations.
  • Encoding and decoding a depth map usually requires the use of a wedge template set.
  • Each size image block requires a corresponding wedge template set, and the wedge template set of each size image block may include multiple binarized block templates.
  • a wedge template set of image blocks of each size usually includes an extremely large number of binarized block templates, for example, a wedge template set of a size block of 4 ⁇ 4 usually includes 86 binarized block templates, and for example, a wedge template set of an image block of size 8x8 typically includes 766 binarized block templates, and a set of wedge templates of a size block of 16x16 typically includes 1350 binarized block templates.
  • a large number of binarized block templates in a wedge template set of image blocks of one size will increase the complexity of the video codec device. For example, if the number of binarized block templates in the wedge template set is large, it will occupy more storage space and thus increase the burden on the codec device.
  • the embodiment of the invention provides a template processing method and related equipment, so as to reduce the number of binary templated blocks in the wedge template set of the image block, thereby reducing the complexity of the video codec device.
  • a first aspect of the embodiments of the present invention provides a template processing method, including:
  • the wedge template set is a current set of wedge templates of image blocks of size N*M;
  • the binarized block template i is a binarized block template corresponding to any one of the K sample point pairs
  • the template j is any binarized blocking template in the set of wedge templates, wherein the N and the M are positive integers.
  • the number of the A-type pixel points in the pixel of the binarized block template i is greater than or equal to the first threshold, and the B-type pixel points are present in the pixel in the binarized block template i, where
  • the binarized block template value of the class A pixel in the binarized block template i and the binarized block template value of the same pixel in the binarized block template j Differentiating; the binarized block template value of the class B pixel in the binarized block template i and the binarized block of the same pixel in the binarized block template j
  • the template values are the same;
  • the number of class A pixels in the pixel of the binarized block template i is greater than or equal to a first threshold, and the number of class B pixels in the bins in the binarized block template i is greater than Or equal to a second threshold, wherein the second threshold is a positive integer, the binarized block template value of the class A pixel in the binarized block template i and the binarized block template j
  • the binarized block template value of the pixel having the same coordinate is different; the binarized block template value of the class B pixel in the binarized block template i and the binarized block
  • the binarized block template values of the same pixel points in the template j are the same;
  • the number of the type A pixel points in the pixel of the binarized block template i is greater than or equal to the first threshold, and the number of the class B pixels in the pixel in the binarized block template i accounts for The ratio of the total number of pixel points of the binarized block template i is greater than or equal to a third threshold, wherein the second threshold is a positive number; and the type A pixel of the binarized block template i
  • the binarized block template value is different from the binarized block template value of the pixel having the same coordinate in the binarized block template j; the binary value
  • the binarized block template value of the class B pixel in the block template i is the same as the binarized block template value of the pixel with the same coordinate in the binarized block template j;
  • the ratio of the number of class A pixel points in the pixel of the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold, and the binarization There is a class B pixel in the pixel in the block template i, wherein the fourth threshold is a positive number, wherein the binarized block template of the class A pixel in the binarized block template i
  • the value is different from the binarized block template value of the pixel with the same coordinate in the binarized block template j; the binarization of the class B pixel in the binarized block template i
  • the block template value is the same as the binarized block template value of the pixel with the same coordinate in the binarized block template j;
  • the ratio of the number of class A pixel points in the pixel of the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold, and the binarization The number of class B pixels in the pixel in the block template i is greater than or equal to a second threshold, wherein the fourth threshold is a positive number, the second threshold is a positive integer, and the binarized block
  • the binarized block template value of the class A pixel in the template i is different from the binarized block template value of the pixel having the same coordinate in the binarized block template j;
  • the binarization The binarized block template value of the class B pixel in the block template i is the same as the binarized block template value of the pixel with the same coordinate in the binarized block template j;
  • the ratio of the number of class A pixel points in the pixel of the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold, and the binarization The ratio of the number of class B pixel points in the pixel in the block template i to the total number of pixel points of the binarized block template i is greater than or equal to a third threshold, wherein the fourth threshold is a positive number Wherein the second threshold is a positive number, the binarized block template value of the class A pixel in the binarized block template i and the coordinate in the binarized block template j The binarized block template values of the same pixel are different; the binarized block template value of the class B pixel in the binarized block template i and the binary in the binarized block template j The binarized block template values of the same coordinates are the same;
  • the number of the C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the D-type pixel region exists in the pixel region in the binarized block template i,
  • the binarized block template value of the C-type pixel region in the binarized block template i is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; a binarized block template value of the D-type pixel region in the binarized block template i and a binarized block template value of the same pixel region in the binarized block template j the same;
  • the number of the C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the number of the D-type pixel regions in the pixel region in the binarized block template i is greater than Or equal to a sixth threshold, wherein the sixth threshold is a positive integer, the binarized block template value of the C-type pixel region in the binarized block template i and the binarized block template j
  • the binarized block template values of the pixel regions having the same coordinates are different; the binarized block template values of the D-type pixel regions in the binarized block template i and the binarized block
  • the binarized block template value of the same pixel region in the template j is the same;
  • the number of C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the number of D-type pixel regions in the pixel region in the binarized block template i accounts for The ratio of the total number of pixel regions of the binarized block template i is greater than or equal to a seventh threshold, wherein the sixth threshold is a positive number; and the C-type pixel region of the binarized block template i
  • the binarized block template value is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; the class D pixel in the binarized block template i
  • the binarized block template value of the region is the same as the binarized block template value of the pixel region having the same coordinate in the binarized block template j;
  • the set of wedge templates is a wedge template table.
  • the starting point of the sampling point pair x and the starting point of the sampling point pair y are at least spaced apart 1 sample point.
  • the wedge template set is a current set of wedge templates of image blocks of size N*M;
  • the binarized block template i is added to the wedge template set.
  • the binarized block template i is a binarized block template corresponding to any one of the K sample point pairs, wherein the binarized block template j is the wedge shape Any of the binarized block templates in the set of templates, wherein the N and the M are positive integers.
  • the difference between the binarized block template i and the binary block template j in the wedge template set is consistent with a preset Filtering conditions include:
  • the number of the A-type pixel points in the pixel of the binarized block template i is greater than or equal to the first threshold, and the B-type pixel points are present in the pixel in the binarized block template i, where
  • the binarized block template value of the class A pixel in the binarized block template i and the binarized block template value of the same pixel in the binarized block template j Different;
  • the binarized block template value of the class B pixel in the binarized block template i is the same as the coordinate in the binarized block template j
  • the binarized block template values of the prime points are the same;
  • the ratio of the number of class A pixel points in the pixel of the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold, and the binarization Blocking template i
  • the number of class B pixels in the pixel is greater than or equal to a second threshold, wherein the fourth threshold is a positive number, the second threshold is a positive integer, and A in the binarized block template i
  • the binarized block template value of the pixel-like point is different from the binarized block template value of the pixel with the same coordinate in the binarized block template j; the binarized block template i
  • the binarized block template value of the class B pixel is the same as the binarized block template value of the pixel with the same coordinate in the binarized block template j;
  • the ratio of the number of class A pixel points in the pixel of the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold, and the binarization The ratio of the number of class B pixel points in the pixel in the block template i to the total number of pixel points of the binarized block template i is greater than or equal to a third threshold, wherein the fourth threshold is a positive number Wherein the second threshold is a positive number, the binarized block template value of the class A pixel in the binarized block template i and the coordinate in the binarized block template j The binarized block template values of the same pixel are different; the binarized block template value of the class B pixel in the binarized block template i and the binary in the binarized block template j The binarized block template values of the same coordinates are the same;
  • the number of the C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the D-type pixel region exists in the pixel region in the binarized block template i,
  • the binarized block template value of the C-type pixel region in the binarized block template i is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; a binarized block template value of the D-type pixel region in the binarized block template i and a binarized block template value of the same pixel region in the binarized block template j the same;
  • the number of the C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the number of the D-type pixel regions in the pixel region in the binarized block template i is greater than Or equal to a sixth threshold, wherein the sixth threshold is a positive integer, the binarized block template value of the C-type pixel region in the binarized block template i and the binarized block template j
  • the binarized block template values of the pixel regions having the same coordinates are different; the binarized block template values of the D-type pixel regions in the binarized block template i and the binarized block
  • the binarized block template values are the same;
  • the number of C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the number of D-type pixel regions in the pixel region in the binarized block template i accounts for The ratio of the total number of pixel regions of the binarized block template i is greater than or equal to a seventh threshold, wherein the sixth threshold is a positive number; and the C-type pixel region of the binarized block template i
  • the binarized block template value is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; the class D pixel in the binarized block template i
  • the binarized block template value of the region is the same as the binarized block template value of the pixel region having the same coordinate in the binarized block template j;
  • the ratio of the number of C-type pixel regions in the pixel region of the binarized block template i to the total number of pixel regions of the binarized block template i is greater than or equal to an eighth threshold, and the binarization There is a D-type pixel region in the pixel region in the block template i, wherein the eighth threshold is a positive number, and the binarized block template value of the C-type pixel region in the binarized block template i is The binarized block template values of the pixel regions having the same coordinates in the binarized block template j are different; the binarized block templates of the D-type pixel regions in the binarized block template i The value is the same as the binarized block template value of the pixel region having the same coordinate in the binarized block template j;
  • the ratio of the number of C-type pixel regions in the pixel region of the binarized block template i to the total number of pixel regions of the binarized block template i is greater than or equal to an eighth threshold, and the binarization The number of the D-type pixel regions in the pixel region in the block template i is greater than or equal to a sixth threshold, the eighth threshold is a positive number, and the sixth threshold is a positive integer, the binarized block template i
  • the number of C-type pixel regions in the pixel region of the binarized block template i occupies the binarization
  • the ratio of the total number of pixel regions of the block template i is greater than or equal to an eighth threshold, and the number of D-type pixel regions in the pixel region in the binarized block template i occupies the binarized block template i
  • the ratio of the total number of pixel regions is greater than or equal to a seventh threshold, the eighth threshold is a positive number, the sixth threshold is a positive number, and the binary value of the C-type pixel region in the binarized block template i
  • the binning template value is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; the D-type pixel region in the binarized block template i
  • the binarized block template value is the same as the binarized block template value of the pixel region having the same coordinate in the binarized block template j.
  • the set of wedge templates is a wedge template table.
  • the sampling point is included in the x
  • the starting point and the sampling point are not adjacent to the starting point included in y
  • the sampling point pair x and the sampling point pair y are any two sampling point pairs of the K kinds of sampling points.
  • the starting point included in the sampling point pair x and the starting point included in the sampling point pair y are separated by at least one sampling point.
  • the template processing apparatus is used in a video encoding apparatus or a video decoding apparatus.
  • a fourth aspect of the embodiments of the present invention provides a template processing apparatus, including:
  • An obtaining unit configured to acquire a binarized blocking template corresponding to each of the pair of sampling points of the K sampling point pairs traversed by the current blocking template, where the K is a positive integer, and the K species Different sampling points in the pair of sampling points have different start points and/or end points, and the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y, the sampling point pair x and the Sample point pair y is the K Any two pairs of sampling points in the sampling point;
  • a comparison unit configured to compare the binarized block template corresponding to each sample point pair of the acquired K sample point pairs with the binarized block template in the wedge template set, wherein the wedge shape
  • the template set is a current set of wedge templates of the image block of size N*M;
  • the set of wedge templates is a wedge template table.
  • the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y, and the sampling point pair x and the sampling point pair y are any two sampling point pairs of the K kinds of sampling points.
  • the starting point of the sampling point pair x and the starting point of the sampling point pair y are at least spaced apart 1 sample point.
  • the template processing device is used in a video encoding device or in a video decoding device.
  • a fifth aspect of the embodiments of the present invention provides a template processing apparatus, including:
  • the processor is configured to determine a current blocking template of a binarized blocking template of an image block of size N*M by calling a code or an instruction in the memory; acquiring the current blocking template a binarized blocking template corresponding to each of the pair of sampling point pairs traversed, wherein the K is a positive integer, and the starting point of the different sampling point pairs of the K sampling point pairs Different and / or end points Differentiating; comparing the obtained binarized block template of each of the K sample point pairs to the binarized block template of the wedge template set, wherein the wedge template set is The current wedge template set of the image block of size N*M; comparing the difference between the binarized block template i and the binarized block template j of the wedge template set according to a preset screening condition In the case of the method, the binarized block template i is added to the wedge template set, wherein the binarized block template i is any one of the K sample point pairs. Corresponding binarized block template, wherein the binarized block template j
  • the number of the A-type pixel points in the pixel of the binarized block template i is greater than or equal to the first threshold, and the B-type pixel points are present in the pixel in the binarized block template i, where
  • the binarized block template value of the class A pixel in the binarized block template i and the binarized block template value of the same pixel in the binarized block template j Differentiating; the binarized block template value of the class B pixel in the binarized block template i and the binarized block of the same pixel in the binarized block template j
  • the template values are the same;
  • the number of the type A pixel points in the pixel of the binarized block template i is greater than or equal to the first threshold, and the number of the class B pixels in the pixel in the binarized block template i accounts for Binarization
  • the ratio of the total number of pixel points of the block template i is greater than or equal to a third threshold, wherein the second threshold is a positive number;
  • the binarized block of the class A pixel in the binarized block template i The template value is different from the binarized block template value of the same pixel in the binarized block template j; binarization of the class B pixel in the binarized block template i
  • the block template value is the same as the binarized block template value of the pixel with the same coordinate in the binarized block template j;
  • the number of the C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the D-type pixel region exists in the pixel region in the binarized block template i,
  • the binarized block template value of the C-type pixel region in the binarized block template i is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; a binarized block template value of the D-type pixel region in the binarized block template i and a binarized block template value of the same pixel region in the binarized block template j the same;
  • the number of C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the number of D-type pixel regions in the pixel region in the binarized block template i accounts for The ratio of the total number of pixel regions of the binarized block template i is greater than or equal to a seventh threshold, wherein the sixth threshold is a positive number; and the C-type pixel region of the binarized block template i
  • the binarized block template value is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; the class D pixel in the binarized block template i
  • the binarized block template value of the region is the same as the binarized block template value of the pixel region having the same coordinate in the binarized block template j;
  • the ratio of the number of C-type pixel regions in the pixel region of the binarized block template i to the total number of pixel regions of the binarized block template i is greater than or equal to an eighth threshold, and the binarization Block There is a D-type pixel region in the pixel region in the template i, wherein the eighth threshold is a positive number, and the binarized block template value of the C-type pixel region in the binarized block template i is The binarized block template values of the pixel regions having the same coordinates in the binarized block template j are different; the binarized block template values of the D-type pixel regions in the binarized block template i are The binarized block template values of the pixel regions having the same coordinates in the binarized block template j are the same;
  • the ratio of the number of C-type pixel regions in the pixel region of the binarized block template i to the total number of pixel regions of the binarized block template i is greater than or equal to an eighth threshold, and the binarization The number of the D-type pixel regions in the pixel region in the block template i is greater than or equal to a sixth threshold, the eighth threshold is a positive number, and the sixth threshold is a positive integer, the binarized block template i
  • the sixth threshold is a positive number, and the binarized block template value of the C-type pixel region in the binarized block template i is the same as the pixel region in the binary block template j
  • the binarized block template values are different; the binarized block template values of the class D pixel regions in the binarized block template i are the same as the coordinates in the binarized block template j
  • the binarized block template values of the pixel area are the same.
  • the wedge template set may be a wedge template table.
  • the sampling point is included in the x
  • the starting point and the sampling point are not adjacent to the starting point included in y
  • the sampling point pair x and the sampling point pair y are Any two of the K sample points are sampled.
  • the starting point of the sampling point pair x and the starting point of the sampling point pair y are at least spaced apart 1 sample point.
  • a sixth aspect of the embodiments of the present invention provides a template processing apparatus, including:
  • the processor is configured to determine a current blocking template of a binarized blocking template of an image block of size N*M by calling a code or an instruction in the memory; acquiring the current blocking template a binarized blocking template corresponding to each of the pair of sampling point pairs traversed, wherein the K is a positive integer, and the starting point of the different sampling point pairs of the K sampling point pairs The difference between the sampling point pair x and the starting point of the sampling point pair y are not adjacent, and the sampling point pair x and the sampling point pair y are in the K sampling points.
  • the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y, the sampling point pair x and the sample point pair y are any two sample point pairs of the K sample points.
  • Comparing the binarized block templates for comparison if comparing the difference between the binarized block template i and the binarized block template j in the wedge template set according to a preset screening condition, the A binarized block template i is added to the wedge template set of the image block of size N*M, wherein the screening condition is selected to filter the candidate binarized block template, which will meet the screening conditions.
  • the alternative binarized block template is added to the wedge template set of image blocks of size N*M, whereas in the prior art all alternative binarizations that differ from the binarized block templates in the wedge template set are present.
  • the block templates are added to the wedge template set, which can be seen in the above scheme.
  • FIG. 2 is a schematic flowchart of a template processing method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a template comparison according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart diagram of another template processing method according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic flowchart diagram of another template processing method according to an embodiment of the present disclosure.
  • 6-h is a schematic diagram of a start interval sampling according to an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart diagram of another template processing method according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a template processing apparatus according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of another template processing apparatus according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of another template processing apparatus according to an embodiment of the present invention.
  • the embodiment of the invention provides a template processing method and related equipment, so as to reduce the number of binary templated blocks in the wedge template set of the image block, thereby reducing the complexity of the video codec device.
  • a template processing method may include: determining a size a current block template of the binarized block template of the N*M image block; and a binarized block corresponding to each of the K sample point pairs traversed by the current block template a template, wherein the K is a positive integer, the different sampling point pairs of the K sampling point pairs are different in starting point and/or the ending point; each of the obtained K sampling point pairs is sampled Comparing the corresponding binarized block template with the binarized block template of the wedge template set, wherein the set of wedge templates is the current set of wedge templates of the image block of size N*M; Comparing the difference between the binarized block template i and the binarized block template j in the wedge template set according to a preset screening condition, adding the binarized block template i to the a set of wedge templates, wherein the binarized block template i is a binarized block template corresponding to any one of the K sample point pairs, and the binarized block template
  • FIG. 2-a is a schematic flowchart diagram of a template processing method according to an embodiment of the present invention.
  • a template processing method provided by an embodiment of the present invention may include:
  • the N may be equal to or not equal to M, for example, the N may be greater than or less than the M.
  • the N may be equal to a positive integer power of 2.
  • the N may, for example, also be equal to a positive integer power of two.
  • each of the binarized block templates in the wedge template set of the image block of size N*M corresponds to a size of N*M.
  • the corresponding two pairs of each of the K sample point pairs traversed by the current block template of the binarized block template of the image block of size N*M are obtained.
  • the binarized segmentation template corresponding to each of the K sample point pairs and the binary segment of the image block wedge template set of size N*M are obtained.
  • Comparing the block templates comparing the difference between the binarized block template i and the binarized block template j in the wedge template set according to a preset screening condition, the binarization is performed A block template i is added to the wedge template set of the image block of size N*M, wherein the screening condition is selected to filter the candidate binarized block template, and the second candidate that meets the screening condition will be selected.
  • the valued block template is added to the wedge template set of the image block of size N*M, whereas in the prior art, all the alternative binarized block templates which differ from the binarized block template in the wedge template set are Add to the wedge template set (this is also the prior art leading to the wedge template set).
  • the main reason for the huge number of binarized block templates is that the above scheme is advantageous for reducing the number of binarized block templates added to the wedge template set of image blocks of size N*M, thereby facilitating the reduction of image blocks.
  • the number of binarized block templates in the wedge template set is beneficial to reduce the complexity of the video codec device.
  • the preset screening conditions can be flexibly set according to needs, and the preset screening conditions may be various.
  • the difference between the binarized block template i and the binarized block template j in the set of wedge templates conforms to a preset screening condition, and may include: pixels of the binarized block template i The number of the type A pixel points in the point is greater than or equal to the first threshold, and the type B pixel point exists in the pixel in the binarized blocking template i, wherein the binarized blocking template i
  • the binarized block template value of the class A pixel is different from the binarized block template value of the pixel with the same coordinate in the binarized block template j; the binarized block template i
  • the binarized block template value of the class B pixel in the same is the same as the binarized block template value of the pixel with the same coordinate in the binarized block template j.
  • the difference between the binarized block template i and the binarized block template j in the set of wedge templates conforms to a preset screening condition, and may include: the binarized block template i The number of class A pixel points in the pixel is greater than or equal to a first threshold, and the number of class B pixels in the pixel in the binarized segment template i is greater than or equal to a second threshold, the second The threshold is a positive integer, the The binarized block template value of the class A pixel in the binarized block template i is different from the binarized block template value of the pixel with the same coordinate in the binarized block template j; The binarized block template value of the class B pixel in the binarized block template i and the binarized block template value of the pixel with the same coordinate in the binarized block template j the same;
  • the difference between the binarized block template i and the binarized block template j in the set of wedge templates conforms to a preset screening condition, and may include: the binarized block template i
  • the ratio of the number of class A pixel points in the pixel to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold
  • the pixel in the binarized block template i The ratio of the number of B-type pixel points to the total number of pixel points of the binarized block template i is greater than or equal to a third threshold, wherein the fourth threshold is a positive number, wherein the second threshold is positive a binarized block template value of the class A pixel in the binarized block template i and a binarized block of the same pixel in the binarized block template j
  • the template values are different; wherein the binarized block template value of the class B pixel in the binarized block template i is the same as the pixel with the same coordinate in the bin
  • the second threshold may be equal to 1, 2, 5, 10, 20 or other values, for example.
  • the fifth threshold may be equal to, for example, 4, 5, 8, 10, 20 or other values.
  • the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y, and the sampling point pair x and the sampling point pair y are Any two of the K sample points are sampled.
  • Another template processing method includes: determining a current blocking template of a binarized blocking template of an image block of size N*M; and acquiring each of the K sampling point pairs traversed by the current blocking template.
  • Point to the corresponding binarized block template wherein the K is a positive integer, and the different sampling point pairs of the K sample point pairs are different in starting point and/or ending point, and the sampling point is x
  • the included starting point and the sampling point are not adjacent to the starting point included in y, and the sampling point pair x and the sampling point pair y are any two sampling point pairs of the K sampling points;
  • the pair of binarized block templates and wedge templates in each of the K pairs of sample pairs The binarized template is compared, wherein the set of wedge templates is a current set of wedge templates of the image block of size N*M; comparing the binarized block template i with the wedge template set In the case where there is a difference between the binarized block templates j, the binarized block template i
  • the N may be equal to or not equal to M, for example, the N may be greater than or less than the M.
  • an image block of size N*M can be, for example, an image block of size 2*2, an image block of size 4*4, an image block of size 8*8, and an image block of size 16*16.
  • the image block mentioned in each embodiment of the present invention may refer to an image block of a depth map or an image block of other types of images.
  • the image block of the above size N*M may be an image block of size N*M of the depth map.
  • the K can be equal to 2, 3, 4, 10, 15, 30, 50, 65 or other values.
  • the binarized block template i is a binarized block template corresponding to any one of the K sample point pairs, and in other words, for the K sample points
  • the binarized block template corresponding to each sample point pair of the pair can be compared with each binarized block template in the current wedge template set of the image block of size N*M. If the difference between any of the binarized block templates in the current wedge template set of the image block of size N*M conforms to the preset filter condition, it can be added to the size The current wedge template set of N*M image blocks. It can be understood that with the gradual addition of the binarized block template, the image block of size N*M The number of binarized block templates in the current wedge template set will gradually increase.
  • the difference between the binarized block template i and the binarized block template j in the set of wedge templates may include, for example, the presence of a class A pixel in the pixel of the binarized block template i.
  • the binarized block template value of the class A pixel in the binarized block template i and the binarized block template value of the same pixel in the binarized block template j different.
  • the difference between the binarized block template i and the binarized block template j in the set of wedge templates may include: a type C pixel region exists in a pixel region of the binarized block template i, The binarized block template value of the C-type pixel region in the binarized block template i and the binarized block template value of the pixel region having the same coordinate in the binarized block template j different.
  • the set of wedge templates of the image block of size N*M can be used for prediction of image blocks of size N*M, and the like.
  • an image block of size N*M can also be predicted using a set of wedge templates of image blocks of size N*M.
  • the corresponding two pairs of each of the K sample point pairs traversed by the current block template of the binarized block template of the image block of size N*M are obtained.
  • the binarized segmentation template corresponding to each of the K sample point pairs and the binary segment of the image block wedge template set of size N*M are obtained. Comparing the block templates; and comparing the difference between the binarized block template i and the binarized block template j in the wedge template set, adding the binarized block template i to The wedge template of the image block of size N*M is concentrated.
  • the sampling point pair x and the sampling point pair y are any two sampling point pairs among the K sampling points. That is to say, the above-mentioned K sampling point pairs are obtained by interval sampling, which is equivalent to not obtaining the binarization corresponding to each sampling point pair of all the sampling point pairs traversed by the current blocking template.
  • the block template therefore, is equivalent to reducing the number of alternative binarized block templates that may be added to the wedge template set of image blocks of size N*M, which is advantageous for reducing the addition to size N*M
  • the number of binarized block templates of the wedge template set of the image block thereby facilitating the reduction of the number of binarized block templates in the wedge template set of the image block, thereby reducing the complexity of the video codec device.
  • the set of wedge templates may be, for example, a wedge template table.
  • the template processing method may be used in a video encoding process or a video decoding process.
  • the wedge template set of the image block of size N*M can be used to predict an image block of size N*M, and the like. It is possible to predict an image block of size N*M by using a wedge template set of image blocks of size N*M.
  • the execution body of the template processing method may be a video encoding device or a video decoding device.
  • the video encoding device or video decoding device can be any device that needs to output or store video, such as a laptop, tablet, personal computer, mobile phone, digital television, or video server.
  • the video encoding apparatus determines a current blocking template of the binarized blocking template of the image block of size N*M.
  • N and the M are positive integers.
  • the N can be equal to 2, 4, 8, 16, 30, 64 or other values.
  • the set of wedge templates may be, for example, a wedge template table.
  • the block template is equivalent to reducing the number of alternative binarized block templates that may be added to the wedge template set of image blocks of size N*M, which also helps to further reduce the addition to size N *
  • the number of binarized block templates of the wedge template set of the image block of M which is advantageous for reducing the number of binarized block templates in the wedge template set of the image block, thereby reducing the complexity of the video codec device.
  • the video decoding apparatus determines a current blocking template of the binarized blocking template of the image block of size N*M.
  • the video decoding device acquires each sample point pair of the K sample point pairs traversed by the current block template of the binarized block template of the image block of size N*M. After the corresponding binarized block template, the binarized block template corresponding to each sample point pair of the obtained K sample point pairs and the image block wedge template of size N*M are collected.
  • the N can be equal to 2, 4, 8, 16, 30, 64 or other values.
  • step 710 is performed.
  • step 705 is performed.
  • the sampling point pair x and the sampling point pair y are any two sampling point pairs among the K sampling points. That is to say, the above-mentioned K sampling point pairs are obtained by interval sampling, which is equivalent to not acquiring the corresponding two pairs of each sampling point pair of all the sampling point pairs traversed by the current blocking template.
  • the number of class A pixels of the binarized block template corresponding to the fth sample point is less than 7 (ie, The difference between the two binarized block templates is small, then it can be determined that the binarized block template corresponding to the fth sample point is not added to the wedge template of the above-mentioned 16 ⁇ 16 depth image block. concentrated.
  • the wedge template set of the depth image block of size 16 ⁇ 16 currently has 197 binarized block templates corresponding to size 16 ⁇ 16, and the binary value corresponding to the fth sample point is Blocking template, with the above wedge template concentrated
  • the 197 binarized block templates that existed before are cyclically compared. And determining, according to the difference result obtained by the comparison, whether the binarized block template corresponding to the fth sample point is added to the wedge template set.
  • the binarized block template corresponding to the fth sample point is The above-mentioned wedge template sets 80 existing binarized block templates that are already existing in the loop for cyclic comparison. And determining, according to the difference result obtained by the comparison, whether the binarized block template corresponding to the fth sample point is added to the wedge template set. For example, if there is any one binarized block template in the 80 binary templated templates in the wedge template set, the type A pixel points exist in the pixels of the binarized block template corresponding to the fth sample point ( A difference exists between the two binarized block templates.
  • the obtaining unit 820 is configured to obtain a binarized blocking template corresponding to each of the pair of sampling point pairs traversed by the current blocking template, where the K is a positive integer, and the K Different sampling points of different pairs of sampling points have different starting points and/or different ending points;
  • the comparing unit 830 is configured to compare the binarized blocking template corresponding to each of the acquired sampling point pairs to the binary templated template in the wedge template set, wherein the The set of wedge templates is a current set of wedge templates of the image block of size N*M;
  • the difference between the binarized block template i and the binarized block template j in the set of wedge templates conforms to preset screening conditions, including:
  • the number of the A-type pixel points in the pixel of the binarized block template i is greater than or equal to the first threshold, and the B-type pixel points are present in the pixel in the binarized block template i, where Binaryized block template values of the class A pixel points in the binarized block template i and the binarized block template j The binarized block template values of the same pixel points are different; the binarized block template values of the class B pixels in the binarized block template i and the binarized block template j The binarized block template values of the same pixel points in the same are the same;
  • the ratio of the number of class A pixel points in the pixel of the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold, and the binarization The number of class B pixels in the pixel in the block template i is greater than or equal to a second threshold, wherein the fourth threshold is a positive number, the second threshold is a positive integer, and the binarized block
  • the binarized block template value of the class A pixel in the template i is different from the binarized block template value of the pixel having the same coordinate in the binarized block template j;
  • the binarization The binarized block template value of the class B pixel in the block template i is the same as the binarized block template value of the pixel with the same coordinate in the binarized block template j;
  • the number of the C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the D-type pixel region exists in the pixel region in the binarized block template i,
  • the binarized block template value of the C-type pixel region in the binarized block template i is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; a binarized block template value of the D-type pixel region in the binarized block template i and a binarized block template value of the same pixel region in the binarized block template j the same;
  • the number of the C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the number of the D-type pixel regions in the pixel region in the binarized block template i is greater than Or equal to a sixth threshold, wherein the sixth threshold is a positive integer, the binarized block template value of the C-type pixel region in the binarized block template i and the binarized block template j In the coordinate
  • the binarized block template values of the same pixel region are different; the binarized block template value of the D-type pixel region in the binarized block template i and the binarized block template j
  • the binarized block template values of the pixel regions having the same coordinates are the same;
  • the number of C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the number of D-type pixel regions in the pixel region in the binarized block template i accounts for The ratio of the total number of pixel regions of the binarized block template i is greater than or equal to a seventh threshold, wherein the sixth threshold is a positive number; and the C-type pixel region of the binarized block template i
  • the binarized block template value is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; the class D pixel in the binarized block template i
  • the binarized block template value of the region is the same as the binarized block template value of the pixel region having the same coordinate in the binarized block template j;
  • the ratio of the number of C-type pixel regions in the pixel region of the binarized block template i to the total number of pixel regions of the binarized block template i is greater than or equal to an eighth threshold, and the binarization There is a D-type pixel region in the pixel region in the block template i, wherein the eighth threshold is a positive number, and the binarized block template value of the C-type pixel region in the binarized block template i is The binarized block template values of the pixel regions having the same coordinates in the binarized block template j are different; the binarized block templates of the D-type pixel regions in the binarized block template i The value is the same as the binarized block template value of the pixel region having the same coordinate in the binarized block template j;
  • the ratio of the number of C-type pixel regions in the pixel region of the binarized block template i to the total number of pixel regions of the binarized block template i is greater than or equal to an eighth threshold, and the binarization The number of the D-type pixel regions in the pixel region in the block template i is greater than or equal to a sixth threshold, the eighth threshold is a positive number, and the sixth threshold is a positive integer, the binarized block template i
  • the ratio of the number of C-type pixel regions in the pixel region of the binarized block template i to the total number of pixel regions of the binarized block template i is greater than or equal to an eighth threshold, and the binarization
  • the ratio of the number of the D-type pixel regions in the pixel region in the block template i to the total amount of the pixel regions of the binarized block template i is greater than or equal to a seventh threshold, and the eighth threshold is a positive number.
  • the sixth threshold is a positive number, and the binarized block template value of the C-type pixel region in the binarized block template i is the same as the pixel region in the binary block template j
  • the binarized block template values are different; the binarized block template values of the class D pixel regions in the binarized block template i are the same as the coordinates in the binarized block template j
  • the binarized block template values of the pixel area are the same.
  • the set of wedge templates may be, for example, a wedge template table.
  • the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y, and the sampling point pair x and the sampling point pair y are Any two of the K sample points are sampled.
  • the starting point included by the sampling point pair x and the starting point included by the sampling point pair y are separated by at least 1 sampling point.
  • the template processing apparatus is used in a video encoding apparatus or a video decoding apparatus.
  • the template processing apparatus 800 acquires each sampling point of the K sampling point pairs traversed by the current blocking template of the binarized blocking template of the image block of size N*M. After the corresponding binarized block template is obtained, the binarized block template corresponding to each sample point pair of the acquired K sample point pairs and the image block wedge template of size N*M are concentrated.
  • Comparing the binarized block templates comparing the difference between the binarized block template i and the binarized block template j in the wedge template set according to a preset screening condition,
  • the binarized block template i is added to the wedge template set of the image block of size N*M, wherein the screening condition is introduced
  • the alternative binarized block template is filtered, and the candidate binarized block template conforming to the filter condition is added to the wedge template set of the image block of size N*M, whereas in the conventional technology, the wedge template is concentrated. All alternative binarized block templates with different binarized block templates are added to the wedge template set (this is also the main reason why the number of binarized block templates in the wedge template set is huge in the prior art).
  • the above solution is advantageous for reducing the number of binarized block templates added to the wedge template set of the image block of size N*M, which is advantageous for reducing the number of binarized block templates in the wedge template set of the image block, thereby facilitating the number of binarized block templates in the wedge template set of the image block.
  • N*M the number of binarized block templates added to the wedge template set of the image block of size
  • N*M the number of binarized block templates in the wedge template set of the image block
  • a template processing apparatus 900 may include:
  • a determining unit 910 configured to determine a current blocking template of the binarized blocking template of the image block of size N*M;
  • the obtaining unit 920 is configured to obtain a binarized blocking template corresponding to each of the pair of sampling point pairs traversed by the current blocking template, where the K is a positive integer, and the K Different sampling points of different sampling point pairs are different in starting point and/or ending point, and the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y, and the sampling point is x and The sampling point pair y is any two sampling point pairs of the K sampling points;
  • the comparing unit 930 is configured to compare the binarized blocking template corresponding to each of the acquired sampling point pairs with the binary templated template in the wedge template set, wherein the The set of wedge templates is a current set of wedge templates of the image block of size N*M;
  • the adding unit 940 is configured to add the binarized block template i to the case where there is a difference between the binarized block template i and the binarized block template j in the wedge template set.
  • the binary template is set, and the binarized block template i is a binarized block template corresponding to any one of the K sample point pairs, wherein the binarized block is
  • the template j is any type of binarized block template in the set of wedge templates, and the N and the M are positive integers.
  • the set of wedge templates may be a wedge template table.
  • the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y, and the sampling point pair x and the sampling point pair y are Any two of the K sample points are sampled.
  • the starting point included in the sampling point pair x and the starting point included in the sampling point pair y are separated by at least one sampling point.
  • the template processing apparatus 900 is used in a video encoding apparatus or in a video decoding apparatus.
  • the template processing apparatus 900 acquires each sampling point of the K sampling point pairs traversed by the current blocking template of the binarized blocking template of the image block of size N*M. After the corresponding binarized block template is obtained, the binarized block template corresponding to each sample point pair of the acquired K sample point pairs and the image block wedge template of size N*M are concentrated. Comparing the binarized block templates; and comparing the difference between the binarized block template i and the binarized block template j in the wedge template set, the binarization is divided A block template i is added to the wedge template set of the image block of size N*M.
  • the sampling point pair x and the sampling point pair y are any two sampling point pairs among the K sampling points. That is to say, the above-mentioned K sampling point pairs are obtained by interval sampling, which is equivalent to not obtaining the binarization corresponding to each sampling point pair of all the sampling point pairs traversed by the current blocking template.
  • the block template therefore, is equivalent to reducing the number of alternative binarized block templates that may be added to the wedge template set of image blocks of size N*M, which is advantageous for reducing the addition to size N*M
  • the number of binarized block templates of the wedge template set of the image block thereby facilitating the reduction of the number of binarized block templates in the wedge template set of the image block, thereby reducing the complexity of the video codec device.
  • a template processing apparatus 1000 may include:
  • the processor 1002 and the memory 1003 are coupled by a bus 1001.
  • the processor 1002 is configured to determine a current blocking template of a binarized blocking template of an image block of size N*M by calling a code or an instruction in the memory 1003; acquiring the current blocking template a binarized blocking template corresponding to each of the pair of sampling point pairs traversed, wherein the K is a positive integer, and the different sampling point pairs included in the K sampling point pairs are included The start point is different and/or the end point is different; the binarized block template corresponding to each sample point pair of the obtained K sample point pairs is compared with the binary block template in the wedge template set, wherein The set of wedge templates is a current set of wedge templates of the image block of size N*M; comparing the difference between the binarized block template i and the binarized block template j of the wedge template set Adding the binarized block template i to the wedge template set, wherein the binarized block template i is any of the K sample point pairs.
  • the difference between the binarized block template i and the binarized block template j in the set of wedge templates conforms to preset screening conditions, including:
  • the number of the A-type pixel points in the pixel of the binarized block template i is greater than or equal to the first threshold, and the B-type pixel points are present in the pixel in the binarized block template i, where
  • the binarized block template value of the class A pixel in the binarized block template i and the binarized block template value of the same pixel in the binarized block template j Differentiating; the binarized block template value of the class B pixel in the binarized block template i and the binarized block of the same pixel in the binarized block template j
  • the template values are the same;
  • the number of class A pixels in the pixel of the binarized block template i is greater than or equal to a first threshold, and the number of class B pixels in the bins in the binarized block template i is greater than Or equal to a second threshold, wherein the second threshold is a positive integer, the binarized block template value of the class A pixel in the binarized block template i and the binarized block template j
  • the binarized block template value of the pixel having the same coordinate is different; the binarized block template value of the class B pixel in the binarized block template i and the binarized block
  • the binarized block template values of the same pixel points in the template j are the same;
  • the number of the type A pixel points in the pixel of the binarized block template i is greater than or equal to the first a threshold value, and a ratio of the number of the B-type pixel points in the pixel in the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a third threshold, where The second threshold is a positive number; the binarized block template value of the class A pixel in the binarized block template i is the same as the pixel in the binarized block template j The binarized block template values of the points are different; the binarized block template values of the class B pixels in the binarized block template i are the same as the coordinates in the binarized block template j The binarized block template values of the pixels are the same;
  • the ratio of the number of class A pixel points in the pixel of the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold, and the binarization There is a class B pixel in the pixel in the block template i, wherein the fourth threshold is a positive number, wherein the binarized block template of the class A pixel in the binarized block template i
  • the value is different from the binarized block template value of the pixel with the same coordinate in the binarized block template j; the binarization of the class B pixel in the binarized block template i
  • the block template value is the same as the binarized block template value of the pixel with the same coordinate in the binarized block template j;
  • the ratio of the number of class A pixel points in the pixel of the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold, and the binarization The number of class B pixels in the pixel in the block template i is greater than or equal to a second threshold, wherein the fourth threshold is a positive number, the second threshold is a positive integer, and the binarized block
  • the binarized block template value of the class A pixel in the template i is different from the binarized block template value of the pixel having the same coordinate in the binarized block template j;
  • the binarization The binarized block template value of the class B pixel in the block template i is the same as the binarized block template value of the pixel with the same coordinate in the binarized block template j;
  • the ratio of the number of class A pixel points in the pixel of the binarized block template i to the total number of pixel points of the binarized block template i is greater than or equal to a fourth threshold, and the binarization
  • the ratio of the number of class B pixel points in the pixel in the block template i to the total number of pixel points of the binarized block template i is greater than or equal to a third threshold, wherein the fourth threshold is a positive number
  • the second threshold value is a positive number
  • the binarized block template value of the class A pixel point in the binarized block template i is compared with the binarization
  • the binarized block template values of the same pixel points in the block template j are different; the binarized block template values of the class B pixels in the binarized block template i are the same as the two The value of the binarized block template of the pixel with the same coordinate in the valued block template j is the same;
  • the number of the C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the D-type pixel region exists in the pixel region in the binarized block template i,
  • the binarized block template value of the C-type pixel region in the binarized block template i is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; a binarized block template value of the D-type pixel region in the binarized block template i and a binarized block template value of the same pixel region in the binarized block template j the same;
  • the number of the C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the number of the D-type pixel regions in the pixel region in the binarized block template i is greater than Or equal to a sixth threshold, wherein the sixth threshold is a positive integer, the binarized block template value of the C-type pixel region in the binarized block template i and the binarized block template j
  • the binarized block template values of the pixel regions having the same coordinates are different; the binarized block template values of the D-type pixel regions in the binarized block template i and the binarized block
  • the binarized block template value of the same pixel region in the template j is the same;
  • the number of C-type pixel regions in the pixel region of the binarized block template i is greater than or equal to a fifth threshold, and the number of D-type pixel regions in the pixel region in the binarized block template i accounts for The ratio of the total number of pixel regions of the binarized block template i is greater than or equal to a seventh threshold, wherein the sixth threshold is a positive number; and the C-type pixel region of the binarized block template i
  • the binarized block template value is different from the binarized block template value of the pixel region having the same coordinate in the binarized block template j; the class D pixel in the binarized block template i
  • the binarized block template value of the region is the same as the binarized block template value of the pixel region having the same coordinate in the binarized block template j;
  • the number of C-type pixel regions in the pixel region of the binarized block template i occupies the binarization
  • the ratio of the total number of the pixel regions of the block template i is greater than or equal to the eighth threshold, and the pixel region of the binarized block template i has a D-type pixel region, wherein the eighth threshold is a positive number.
  • the binarized block template value of the C-type pixel region in the binarized block template i and the binarized block template value of the pixel region having the same coordinate in the binarized block template j Differentiating; the binarized block template value of the D-type pixel region in the binarized block template i and the binarized block of the pixel region having the same coordinate in the binarized block template j
  • the template values are the same;
  • the ratio of the number of C-type pixel regions in the pixel region of the binarized block template i to the total number of pixel regions of the binarized block template i is greater than or equal to an eighth threshold, and the binarization The number of the D-type pixel regions in the pixel region in the block template i is greater than or equal to a sixth threshold, the eighth threshold is a positive number, and the sixth threshold is a positive integer, the binarized block template i
  • the ratio of the number of C-type pixel regions in the pixel region of the binarized block template i to the total number of pixel regions of the binarized block template i is greater than or equal to an eighth threshold, and the binarization
  • the ratio of the number of the D-type pixel regions in the pixel region in the block template i to the total amount of the pixel regions of the binarized block template i is greater than or equal to a seventh threshold, and the eighth threshold is a positive number.
  • the sixth threshold is a positive number, and the binarized block template value of the C-type pixel region in the binarized block template i is the same as the pixel region in the binary block template j
  • the binarized block template values are different; the binarized block template values of the class D pixel regions in the binarized block template i are the same as the coordinates in the binarized block template j
  • the binarized block template values of the pixel area are the same.
  • the set of wedge templates may be a wedge template table.
  • the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y, and the sampling point pair x and the sampling point pair y are The K species Any two pairs of sample points in the sample point.
  • the starting point included by the sampling point pair x and the starting point included by the sampling point pair y are separated by at least 1 sampling point.
  • the template processing apparatus 1000 is used in a video encoding apparatus or a video decoding apparatus.
  • the template processing apparatus 1000 acquires each of the K sample point pairs traversed by the current block template of the binarized block template of the image block of size N*M. After the corresponding binarized block template is obtained, the binarized block template corresponding to each sample point pair of the acquired K sample point pairs and the image block wedge template of size N*M are concentrated.
  • Comparing the binarized block templates comparing the difference between the binarized block template i and the binarized block template j in the wedge template set according to a preset screening condition,
  • the binarized block template i is added to the wedge template set of the image block of size N*M, wherein the screening condition is selected by screening the candidate binarized block template
  • the alternative binarized blocking template is added to the wedge template set of the image block of size N*M, whereas in the conventional technique, all the alternative binary values which are different from the binarized blocking template in the wedge template set are used.
  • the split block templates are added to the wedge template set (this is also the prior art The main reason is that the number of binary templated templates in the wedge template is large.
  • the above scheme is beneficial to reduce the number of binary templated templates added to the wedge template set of the image block of size N*M, which is beneficial to The number of binarized block templates in the wedge template set of the image block is reduced, which in turn helps to reduce the complexity of the video decoding device.
  • a template processing apparatus 1100 may include:
  • the processor 1102 and the memory 1103 are coupled by a bus 1101.
  • the processor 1102 is configured to determine a current blocking template of a binarized blocking template of an image block of size N*M by calling a code or an instruction in the memory 1103; acquiring the current blocking template a binarized block template corresponding to each sample point pair of the K sample point pairs traversed, wherein K is a positive integer, the different sampling point pairs of the K sampling point pairs are different in starting point and/or the ending point, and the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y And the sampling point pair x and the sampling point pair y are any two sampling point pairs of the K sampling points; corresponding to each of the obtained K sampling point pairs
  • the binarized block template is compared with the binarized block template in the set of wedge templates, wherein the set of wedge templates is the current set of wedge templates of the image block of size N*M; In the case where there is a difference between the block template i and the binarized block template j in the set of wedge templates, the binarized
  • the set of wedge templates may be a wedge template table.
  • the starting point included in the sampling point pair x is not adjacent to the starting point included in the sampling point pair y, and the sampling point pair x and the sampling point pair y are Any two of the K sample points are sampled.
  • the starting point included by the sampling point pair x and the starting point included by the sampling point pair y are separated by at least 1 sampling point.
  • the template processing apparatus 1100 is used in a video encoding apparatus or in a video decoding apparatus.
  • the template processing apparatus 1100 acquires each of the K sample point pairs traversed by the current block template of the binarized block template of the image block of size N*M. After the corresponding binarized block template is obtained, the binarized block template corresponding to each sample point pair of the acquired K sample point pairs and the image block wedge template of size N*M are concentrated. Comparing the binarized block templates; and comparing the difference between the binarized block template i and the binarized block template j in the wedge template set, the binarization is divided Block template i is added to the size as The wedge template of the N*M image block is concentrated.
  • the sampling point pair x and the sampling point pair y are any two sampling point pairs among the K sampling points. That is to say, the above-mentioned K sampling point pairs are obtained by interval sampling, which is equivalent to not obtaining the binarization corresponding to each sampling point pair of all the sampling point pairs traversed by the current blocking template.
  • the block template therefore, is equivalent to reducing the number of alternative binarized block templates that may be added to the wedge template set of image blocks of size N*M, which is advantageous for reducing the addition to size N*M
  • the number of binarized block templates of the wedge template set of the image block thereby facilitating the reduction of the number of binarized block templates in the wedge template set of the image block, thereby reducing the complexity of the video codec device.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes some or all of the steps of any one of the signal processing methods described in the foregoing method embodiments.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the above units is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to 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, device or unit, and may be electrical or otherwise.
  • the units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, ie may be located in one place, or It can also be distributed to multiple network elements. 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 above-described integrated unit if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, server or network device, etc., and in particular a processor in a computer device) to perform all or part of the steps of the above-described methods of various embodiments of the present invention.
  • the foregoing storage medium may include: a U disk, a mobile hard disk, a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), and the like. The medium of the code.

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  • Computing Systems (AREA)
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  • Image Analysis (AREA)
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Abstract

L'invention concerne un procédé de traitement de modèle, et un dispositif associé, le procédé de traitement de modèle consistant à : déterminer le modèle de bloc actuel d'un modèle de bloc de binarisation d'un bloc d'image ayant les dimensions NxM ; obtenir le modèle de bloc de binarisation correspondant à chaque paire de points d'échantillonnage parmi un nombre K de paires de points d'échantillonnage traversées par le modèle de bloc actuel ; comparer le modèle de bloc de binarisation obtenu correspondant à chaque paire de points d'échantillonnage parmi ledit nombre K de paires de points d'échantillonnage aux modèles de bloc de binarisation d'un ensemble de modèles de wedgelet, ledit ensemble de modèles de wedgelet étant l'ensemble de modèles de wedgelet actuel du bloc d'image ayant les dimensions NxM ; lorsque la différence telle que révélée par la comparaison entre un modèle de bloc de binarisation i et un modèle de bloc de binarisation j de l'ensemble de modèles de wedgelet est conforme à des critères de sélection prédéfinis, ajouter ledit modèle de bloc de binarisation i audit ensemble de modèles de wedgelet. Les solutions techniques de la présente invention permettent de réduire le nombre de modèles de bloc de binarisation dans l'ensemble de modèles de wedgelet d'un bloc d'image, ce qui permet de réduire la complexité d'un équipement de codage et de décodage vidéo.
PCT/CN2015/072344 2015-02-05 2015-02-05 Procédé de traitement de modèle, et dispositif associé WO2016123782A1 (fr)

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CN201580001246.3A CN105519110B (zh) 2015-02-05 2015-02-05 模板处理方法和相关设备

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CN102156868A (zh) * 2011-03-31 2011-08-17 汉王科技股份有限公司 图像二值化方法和装置
CN104221379A (zh) * 2011-11-11 2014-12-17 弗兰霍菲尔运输应用研究公司 自适应分区编码
CN104247427A (zh) * 2011-11-11 2014-12-24 弗兰霍菲尔运输应用研究公司 使用分区编码的有效预测

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CN103826115B (zh) * 2014-03-21 2016-03-02 华为技术有限公司 图像分割方式的编解码处理方法和装置

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US20100208818A1 (en) * 2007-10-12 2010-08-19 Thomson Licensing Methods and apparatus for video encoding and decoding geometrically partitioned bii-predictive mode partitions
CN102156868A (zh) * 2011-03-31 2011-08-17 汉王科技股份有限公司 图像二值化方法和装置
CN104221379A (zh) * 2011-11-11 2014-12-17 弗兰霍菲尔运输应用研究公司 自适应分区编码
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