Error-robust H.263 video coding system

Tien Hsu Lee, Pao Chi Chang

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

This paper presents an error resilient H.263 video compression system over noisy channels. We develop a video segment regulation algorithm at the decoder to efficiently identify and correct erroneous start codes and block addresses. In addition, a parity-embedded error detection technique is also implemented to enhance the error detection capability of the decoder at the macroblock-layer. After performing above two approaches, the decoder can report the accurate addresses of detected corrupt blocks back to the encoder via a feedback channel. With these negative acknowledgments, the precise error tracking algorithm is developed at the encoder to precisely calculate and trace the propagated errors for INTRA refreshing the contaminated blocks. Simulation results show that the proposed system yields significant video quality improvements over the motion compensated concealment by PSNR gains of 4 to 6 dB at bit rate around 32 kbps in error-prone DECT environments. In particular, this system complies with the H.263 standard and has the advantages of low memory requirement and computation complexity that are suitable for practical real-time implementation.

原文???core.languages.en_GB???
主出版物標題Electronic Imaging and Multimedia Technology III
編輯LiWei Zhou, Chung-Sheng Li, Yoshiji Suzuki
發行者SPIE
頁面209-218
頁數10
ISBN(電子)9780819447142
DOIs
出版狀態已出版 - 30 8月 2002
事件Electronic Imaging and Multimedia Technology III 2002 - Shanghai, China
持續時間: 14 10月 200218 10月 2002

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
4925
ISSN(列印)0277-786X
ISSN(電子)1996-756X

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???event.eventtypes.event.conference???Electronic Imaging and Multimedia Technology III 2002
國家/地區China
城市Shanghai
期間14/10/0218/10/02

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