CA2854814C - Context reduction for context adaptive binary arithmetic coding - Google Patents
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- CA2854814C CA2854814C CA2854814A CA2854814A CA2854814C CA 2854814 C CA2854814 C CA 2854814C CA 2854814 A CA2854814 A CA 2854814A CA 2854814 A CA2854814 A CA 2854814A CA 2854814 C CA2854814 C CA 2854814C
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
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- H—ELECTRICITY
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- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
- H03M7/4006—Conversion to or from arithmetic code
- H03M7/4012—Binary arithmetic codes
- H03M7/4018—Context adapative binary arithmetic codes [CABAC]
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- H—ELECTRICITY
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- 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
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
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- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
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- 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
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/174—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
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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
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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- H—ELECTRICITY
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161557325P | 2011-11-08 | 2011-11-08 | |
| US61/557,325 | 2011-11-08 | ||
| US201161561911P | 2011-11-20 | 2011-11-20 | |
| US61/561,911 | 2011-11-20 | ||
| US13/645,296 US9237358B2 (en) | 2011-11-08 | 2012-10-04 | Context reduction for context adaptive binary arithmetic coding |
| US13/645,296 | 2012-10-04 | ||
| PCT/US2012/059092 WO2013070353A1 (en) | 2011-11-08 | 2012-10-05 | Context reduction for context adaptive binary arithmetic coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2854814A1 CA2854814A1 (en) | 2013-05-16 |
| CA2854814C true CA2854814C (en) | 2017-06-13 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
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| CA2854814A Active CA2854814C (en) | 2011-11-08 | 2012-10-05 | Context reduction for context adaptive binary arithmetic coding |
| CA2854830A Active CA2854830C (en) | 2011-11-08 | 2012-10-05 | Number of contexts reduction for context adaptive binary arithmetic coding |
| CA2854822A Active CA2854822C (en) | 2011-11-08 | 2012-10-05 | Number of context reduction for context adaptive binary arithmetic coding |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
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| CA2854830A Active CA2854830C (en) | 2011-11-08 | 2012-10-05 | Number of contexts reduction for context adaptive binary arithmetic coding |
| CA2854822A Active CA2854822C (en) | 2011-11-08 | 2012-10-05 | Number of context reduction for context adaptive binary arithmetic coding |
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Families Citing this family (61)
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| EP2763414B1 (en) | 2011-09-29 | 2020-09-23 | Sharp Kabushiki Kaisha | Image decoding device and image decoding method for performing bi-prediction to uni-prediction conversion |
| US9451287B2 (en) | 2011-11-08 | 2016-09-20 | Qualcomm Incorporated | Context reduction for context adaptive binary arithmetic coding |
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