A frame-work for live multicast of video streams over the Internet

Author

Chaddha, Navin ; Gupta, Anoop

Author_Institution

Comput. Syst. Lab., Stanford Univ., CA, USA

Volume

1

fYear

1996

fDate

16-19 Sep 1996

Firstpage

1

Abstract

This paper presents a frame-work for live multicast of video streams over the Internet. The overall system combines a scalable video compression algorithm, a cheap software only real-time video encoder and decoder, and a network unit. The scalable compression algorithm produces an embedded bit-stream to support decoders with various spatial and temporal resolutions. Bandwidth scalability with a dynamic range from a few Kbps to several Mbps is provided. The subjective quality of compressed frames improves significantly by the use of perceptual distortion measures. For cheap software only encoding and decoding we use hierarchical table-lookup vector quantization. Multiple multicast groups are used for the delivery of the scalable streams over the Internet

Keywords

Internet; decoding; image resolution; rate distortion theory; table lookup; telecommunication channels; telecommunication computing; vector quantisation; video coding; visual communication; Internet; bandwidth scalability; compressed frames; dynamic range; embedded bit-stream; hierarchical table-lookup vector quantization; live multicast; multiple multicast groups; network unit; perceptual distortion measures; rate distortion performance; real-time video decoder software; real-time video encoder software; scalable video compression algorithm; spatial resolution; subjective quality; temporal resolution; video streams; Bandwidth; Compression algorithms; Decoding; Internet; Multicast algorithms; Real time systems; Software algorithms; Spatial resolution; Streaming media; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1996. Proceedings., International Conference on

Conference_Location

Lausanne

Print_ISBN

0-7803-3259-8

Type

conf

DOI

10.1109/ICIP.1996.559417

Filename

559417