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Methods and apparatus for using syntax for the coded_block_flag syntax element and the coded_block_pattern syntax element for the cavlc 4:4:4 intra, high 4:4:4 intra, and high 4:4:4 predictive profile

A grammatical element and coding technology, applied in electrical components, TV, pulse modulation TV signal transmission, etc., can solve problems such as low size efficiency and unusable arithmetic coding

Active Publication Date: 2009-11-11
INTERDIGITAL VC HLDG INC
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Problems solved by technology

[0007] Therefore, due to the insufficiency of the coded_block_flag syntax element in such cases, when applying Context-Adaptive Binary Arithmetic Coding (CABAC) to 8×8 in High 4:4:4 Intra and High 4:4:4 predetermined profiles When the block size is large, the context-adaptive binary arithmetic coding (CABAC) cannot be used disadvantageously
Also, with respect to the use of the coded_block_pattern syntax element in the CAVLC 4:4:4 Intra profile, the Context Adaptive Binary Arithmetic Coding (CABAC) process is not efficient for any block size

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  • Methods and apparatus for using syntax for the coded_block_flag syntax element and the coded_block_pattern syntax element for the cavlc 4:4:4 intra, high 4:4:4 intra, and high 4:4:4 predictive profile
  • Methods and apparatus for using syntax for the coded_block_flag syntax element and the coded_block_pattern syntax element for the cavlc 4:4:4 intra, high 4:4:4 intra, and high 4:4:4 predictive profile
  • Methods and apparatus for using syntax for the coded_block_flag syntax element and the coded_block_pattern syntax element for the cavlc 4:4:4 intra, high 4:4:4 intra, and high 4:4:4 predictive profile

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[0026] The present invention relates to standards for the International Organization for Standardization / International Electrotechnical Commission (ISO / IEC) Moving Picture Experts Group-4 (MPEG-4) standard Part 10 Advanced Video Coding (AVC) standard / International Telecommunication Union Telecommunication Standardization Sector (ITU-T) The method of the previously unused syntax element of the coded_block_flag syntax element and device.

[0027] Furthermore, the present principles relate to a method of increasing the efficiency of CAVLC processing for the CAVLC 4:4:4 intra profile in the MPEG-4 AVC standard for any block size by using a monochrome chroma array type for the mapping process for coded_block_pattern syntax elements and device.

[0028] This description explains the principles of the invention. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described or shown herein, embody the pr...

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Abstract

There are provided methods and apparatus for using syntax for the coded_block_flag syntax element for the CAVLC 4:4:4 Intra, High 4:4:4 Intra, and High 4:4:4 Predictive profiles in MPEG-4 AVC high level coding. An apparatus includes an encoder (100) for encoding image data into a resultant bitstream in accordance with an encoding profile that encodes a sample of the image data such that the sample includes two chrominance arrays and a luminance array. Each of the two chrominance arrays has a same height and a same width as the luminance array. The encoder (100) indicates a presence of at least one 8x8 block in the resultant bitstream using a syntax element.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application Serial No. 60 / 884,576, filed January 11, 2007, which is hereby incorporated by reference in its entirety. technical field [0003] The present principles relate generally to video encoding and decoding, and more specifically to the International Organization for Standardization / International Electrotechnical Commission (ISO / IEC) Motion Picture Experts Group-4 (MPEG-4) Part 10 Advanced Video Coding (AVC) standard / The Higher 4:4:4 Intra and Higher 4:4:4 Prediction profiles in the International Telecommunication Union Telecommunication Standardization Sector (ITU-T) Recommendation H.264 (hereinafter "MPEG-4 AVC Standard") use the coded_block_flag syntax element Methods and apparatus for previously unused syntax elements. Furthermore, the present principles relate to methods and apparatus for increasing the efficiency of CAVLC processing for the CAVLC 4:4:4 ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N19/70H04N19/13
CPCH04N19/00278H04N19/00315H04N7/26148H04N7/26223H04N19/00018H04N7/26106H04N19/00139H04N19/00024H04N7/26946H04N19/00951H04N7/26H04N19/0023H04N19/00884H04N19/00H04N7/26021H04N19/00121H04N19/13H04N19/186H04N19/70H04N19/105H04N19/176H04N19/103H04N19/91H04N19/136H04N19/162H04N19/119H04N19/59H04N19/122H04N19/60
Inventor 余浩平
Owner INTERDIGITAL VC HLDG INC
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