Scalable video decoder and its application to multi-channel multicast system

Author

Yanagihara, Hiromasa ; Sugano, Masaru ; Yoneyama, Akio ; Nakajima, Yasuyuki

Author_Institution

Multimedia Commun. Group, KDD R&D Labs. Inc., Saitama, Japan

Volume

46

Issue

3

fYear

2000

fDate

8/1/2000 12:00:00 AM

Firstpage

866

Lastpage

871

Abstract

In this paper we propose CPU load-scalable video decoder algorithms using several DCT manipulations such as low pass filtering and resolution conversion in the DCT domain, and their application to a multichannel multicast system. In the experiment, it is shown that the graceful and effective decoder scalability can be realized in terms of quality and decoding complexity without sacrificing decoding frame rate by selecting appropriate decoding algorithms. It is also shown that simultaneous decoding of tens of channels in an ordinary PC can be realized by applying scalable video decoding algorithms

Keywords

computational complexity; decoding; discrete cosine transforms; image resolution; low-pass filters; multicast communication; video signal processing; CPU load-scalable video decoder algorithms; DCT manipulations; decoder scalability; decoding complexity; decoding frame rate; low pass filtering; multi-channel multicast system; quality; resolution conversion; scalable video decoder; Decoding; Discrete cosine transforms; Displays; Filtering algorithms; Low pass filters; Motion compensation; Multicast algorithms; Personal communication networks; Scalability; Streaming media;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.883464

Filename

883464