H.263-based SNR scalable video codec

Author

Lee, B.R. ; Park, K.K. ; Hwang, J.J.

Author_Institution

Dept. of Multimedia, Electron. & Telecommun. Res. Inst., South Korea

Volume

43

Issue

3

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

614

Lastpage

622

Abstract

We propose a H.263-based video coder with two-layer SNR scalability. The base layer is coded by using the default H.263 coding algorithms to achieve high compressed video data and the enhanced layer is coded by advanced coding such as HVS-based quantization updating. The enhanced layer contains only coded refinement data for the DCT coefficients of the base layer. Bitstream syntax and semantics for enhancement layer are designed and quantizer design using the HVS is proposed. Data from the two layers are combined after inverse quantization processes and inverse DCT coefficients by adding in the decoder

Keywords

code standards; data compression; discrete cosine transforms; inverse problems; quantisation (signal); telecommunication standards; transform coding; video codecs; video coding; DCT coefficients; H.263 coding algorithms; HVS based quantization updating; SNR scalable video codec; base layer; bit stream semantics; bit stream syntax; coded refinement data; compressed video data; decoder; enhanced layer; inverse DCT coefficients; inverse quantization; quantizer design; two-layer SNR scalability; Bandwidth; Decoding; Discrete cosine transforms; Quantization; Scalability; Spatial resolution; Video codecs; Video coding; Video compression; Videoconference;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.628684

Filename

628684