Abstract
This study aims at finding an efficient compensation method of transmission errors in low bit-rate mobile communications using the H.263 video codec. For this aim, we suggests a novel error compensation method in the encoder (or transmitter), that can remove visual quality degradation due to spatio-temporal error propagation by utilizing a feedback channel. Most of all, our proposed method can reduce the computational complexity of the re-decoding method and FRD(Fast Re-Decoding) method by using the characteristic for not error-propagated macroblocks. Experimental results show that the proposed error compensation method can give higher coding efficiency compared with the other two non re-decoding based existing ones: the reference picture selection(RPS) method and the error tracking(ET) method. Finally, our proposed method requires only 30% in the amount of operations compare to fast re-decoding(FRD) procedure.
| Original language | English |
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| Pages | 641-644 |
| Number of pages | 4 |
| Publication status | Published - 2001 |
| Event | 8th International Conference on Parallel and Distributed Systems - Kyongju, Korea, Republic of Duration: 2001 Jun 26 → 2001 Jun 29 |
Other
| Other | 8th International Conference on Parallel and Distributed Systems |
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| Country/Territory | Korea, Republic of |
| City | Kyongju |
| Period | 01/6/26 → 01/6/29 |
ASJC Scopus subject areas
- Hardware and Architecture