Multiple description coding of motion fields for robust video transmission

Authors
Citation
Cs. Kim et Su. Lee, Multiple description coding of motion fields for robust video transmission, IEEE CIR SV, 11(9), 2001, pp. 999-1010
Citations number
29
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
ISSN journal
1051-8215 → ACNP
Volume
11
Issue
9
Year of publication
2001
Pages
999 - 1010
Database
ISI
SICI code
1051-8215(200109)11:9<999:MDCOMF>2.0.ZU;2-G
Abstract
In many video-coding standards, the motion vector field is one of the most important data in the compressed bit-stream, and its loss can lead to sever e degradation in the decoded picture quality. We propose the multiple descr iption motion coding (MDMC) algorithm to enhance the robustness of the moti on vector field against transmission errors. In MDMC, the motion vector fie ld is encoded into two descriptions, which are transmitted over distinct ch annels to the decoder. The decoder is designed to provide an acceptable qua lity prediction image, even if one of the descriptions is lost during the t ransmission. Moreover, the decoder can reconstruct a higher quality predict ion image, when both the descriptions are received without error. A complet e multiple description video coder, based on the MDMC, is implemented by mo difying the syntax of the H.263 standard, and tested intensively in a reali stic error-prone environment. It is shown that the proposed algorithm provi des much better objective and subjective performances than the H.263 coder in the error-prone environment.