A hybrid approach with drift minimization and correction for a layered H.263 codec

Author

Hsieh, Sheng-Jin ; WU, JA-LING ; Tsai, Chien-Wu ; Dai, Jyh-Liang

Author_Institution

Commun. & Multimedia Lab., Nat. Taiwan Univ., Taipei, Taiwan

Volume

45

Issue

2

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

361

Lastpage

371

Abstract

Layered video coding allows the video information to be transmitted in multiple video bitstreams to achieve scalability, and the quality of the base layer is limited by drift. We propose a hybrid approach to eliminate the drift in an H.263-based video codec with two-layer scalability. The base layer decoder takes advantage of the minimal drift approach to obtain the reconstructed services that have the minimum drift. Then, the encoder sends an additional drift correction signal, which is used to eliminate drift completely, to the decoder. In this way, the proposed approach can eliminate the drift completely and reduce the overhead required for the drift correction

Keywords

code standards; discrete cosine transforms; image reconstruction; motion compensation; telecommunication standards; transform coding; video codecs; video coding; DCT coefficients; DCT subsampling; base layer decoder; base layer quality; drift correction; drift correction signal; drift minimization; encoder; hybrid approach; layered H.263 codec; layered video coding; motion compensation; multiple video bitstreams; overhead reduction; reconstructed services; two-layer scalability; video information; Computer science; Decoding; Degradation; Multimedia communication; Scalability; Spatial resolution; TV; Video codecs; Video coding; Videoconference;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.793421

Filename

793421