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https://www.um.edu.mt/library/oar/handle/123456789/98663| Title: | Using variable-length error-correcting codes in MPEG-4 video |
| Authors: | Buttigieg, Victor Deguara, Rennie |
| Keywords: | Error-correcting codes (Information theory) Algorithms MPEG (Video coding standard) Decoders (Electronics) Coding theory |
| Issue Date: | 2005 |
| Publisher: | IEEE |
| Citation: | Buttigieg, V., & Deguara, R. (2005, September). Using variable-length error-correcting codes in MPEG-4 video. In Proceedings. International Symposium on Information Theory, 2005. ISIT 2005. 2379-2383. |
| Abstract: | Reversible Variable Length (RVL) codes are used in MPEG-4 video coding to improve its error resilience. Algorithms used to design Variable-Length Error-Correcting (VLEC) codes are modified so as to construct efficient RVL codes with a smaller average length than those found in the literature. It is also shown that RVL codes are a special (weak) class of VLEC codes. Consequently more powerful VLEC codes can be used in the MPEG-4 codec and it is shown that performance gains of up to 20dB in Peak Signal to Noise Ratio (PSNR) can be obtained using a soft-decision sequential decoder with relatively simple VLEC codes. This increase in performance is obtained at the expense of an order of magnitude increase in decoding complexity. |
| URI: | https://www.um.edu.mt/library/oar/handle/123456789/98663 |
| Appears in Collections: | Scholarly Works - FacICTCCE |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Using_variable-length_error-correcting_codes_in_MPEG-4_video_2005.pdf Restricted Access | 214.66 kB | Adobe PDF | View/Open Request a copy |
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