A New Coeff-Token Decoding Method With Efficient Memory Access in H.264/AVC Video Coding Standard
In general, a large amount of memory accesses are required for context-based adaptive variable-length coding decoding in H.264/AVC standard. It is a serious problem for applications such as videophone and digital multimedia broadcasting services because of the considerable power consumption of the m...
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| Veröffentlicht in: | IEEE transactions on circuits and systems for video technology Jg. 17; H. 6; S. 729 - 736 |
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| Format: | Journal Article |
| Sprache: | Englisch |
| Veröffentlicht: |
New York, NY
IEEE
01.06.2007
Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Schlagworte: | |
| ISSN: | 1051-8215, 1558-2205 |
| Online-Zugang: | Volltext |
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| Abstract | In general, a large amount of memory accesses are required for context-based adaptive variable-length coding decoding in H.264/AVC standard. It is a serious problem for applications such as videophone and digital multimedia broadcasting services because of the considerable power consumption of the memory access function. In order to reduce the memory access, we carefully examined the codewords in variable-length code tables (VLCTs) of the coeff-token and found some distinctive features from the structure of codewords. Based on the features, a new coeff-token decoding method with an efficient memory organization is proposed in this paper. The simulation results show that the proposed algorithm achieves an approximately 95% memory access saving without video-quality degradation, compared with conventional decoding |
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| AbstractList | In general, a large amount of memory accesses are required for context-based adaptive variable-length coding decoding in H.264/AVC standard. It is a serious problem for applications such as videophone and digital multimedia broadcasting services because of the considerable power consumption of the memory access function. In order to reduce the memory access, we carefully examined the codewords in variable-length code tables (VLCTs) of the coeff-token and found some distinctive features from the structure of codewords. Based on the features, a new coeff-token decoding method with an efficient memory organization is proposed in this paper. The simulation results show that the proposed algorithm achieves an approximately 95% memory access saving without video-quality degradation, compared with conventional decoding In general, a large amount of memory accesses are required for context-based adaptive variable-length coding decoding in H.264/AVC standard. It is a serious problem for applications such as videophone and digital multimedia broadcasting services because of the considerable power consumption of the memory access function. In order to reduce the memory access, we carefully examined the codewords in variable-length code tables (VLCTs) of the coeff-token and found some distinctive features from the structure of codewords. Based on the features, a new coeff-token decoding method with an efficient memory organization is proposed in this paper. The simulation results show that the proposed algorithm achieves an approximately 95% memory access saving without video-quality degradation, compared with conventional decoding. |
| Author | Yong Ho Moon |
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| Keywords | Video coding Content-based adaptive variable-length coding (CAVLC) Decoding Multimedia communication Memory function H.264/AVC Algorithm Adaptive method memory access Video signal processing Adaptive coding Degradation Image quality Digital broadcasting exponential Golomb (EG) Power consumption Simulation Storage management coeff-token Reduced order model Variable length code Videophone Content analysis Damaging |
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| SubjectTerms | Applied sciences Automatic voltage control Circuits Coding Coding, codes coeff-token Content-based adaptive variable-length coding (CAVLC) Decoding Degradation Detection, estimation, filtering, equalization, prediction Digital multimedia broadcasting Electronics Energy consumption Exact sciences and technology exponential Golomb (EG) H.264/AVC IEC standards Image processing Information, signal and communications theory Integrated circuits Integrated circuits by function (including memories and processors) ISO standards memory access Moon Multimedia Power consumption Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Signal and communications theory Signal processing Signal, noise Streaming media Tables Telecommunications and information theory Video coding Videophones |
| Title | A New Coeff-Token Decoding Method With Efficient Memory Access in H.264/AVC Video Coding Standard |
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