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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Karwowski, D. |
| Copyright Year | 2007 |
| Description | Author affiliation: Dept. of Multimedia Telecommun. & Microelectron., Poznan Univ. of Technol., Poznan, Poland (Karwowski, D.) |
| Abstract | In this paper, an improvement is proposed for coding efficiency of the context-based adaptive binary arithmetic coding (CABAC) in applications to the Advance Video Coding H.264/AVC. The improvement of coding efficiency is obtained by more accurate estimation of the conditional probabilities fed to the arithmetic codec. Better conditional probabilities estimation is achieved with well-known data modelling algorithms: Context-Tree Weighting (CTW) and Prediction by Partial Matching (PPM). The original method of incorporating CTW and PPM techniques into the H.264/AVC video codec is presented in this paper. The coding efficiency of the modified H264/AVC video codecs (with CTW and PPM techniques) have been tested with several test sequences. The coding efficiency of the modified H.264/AVC video codecs have been compared against the coding efficiency of the original H.264/AVC codec (with CABAC entropy coding method). Experimental results show that the proposed techniques of the conditional probabilities estimation allow up to 2% bitstream reduction in comparison to the standard CABAC algorithm. |
| Starting Page | 1270 |
| Ending Page | 1274 |
| File Size | 237352 |
| Page Count | 5 |
| File Format | |
| ISBN | 9788392134046 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-09-03 |
| Publisher Place | Poland |
| Access Restriction | Subscribed |
| Rights Holder | EUSIPCO |
| Subject Keyword | Context Video coding Probability Encoding Video codecs Context modeling |
| Content Type | Text |
| Resource Type | Article |
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