An MPEG decoder with embedded compression for memory reduction

Author

De With, Peter H N ; Frencken, Peter H. ; Schaar-Mitrea, Mihaela V d

Author_Institution

Dept. Circuity & Simulation, Mannheim Univ., Germany

Volume

44

Issue

3

fYear

1998

fDate

8/1/1998 12:00:00 AM

Firstpage

545

Lastpage

555

Abstract

We present an MPEG decoder with reduced system costs by employing embedded compression of the reference frames which are used for motion compensated (MC) decoding. The embedded compression scheme used is based on either block predictive coding or DCT transform coding, depending on the required memory compression. The compression features simple recovery of (MC) block data, while preventing visible artifacts. The compression was optimized for low costs, enabling real application in a commercial MPEG IC. It was found that the same techniques can be applied in the encoder as well

Keywords

block codes; data compression; decoding; digital signal processing chips; discrete cosine transforms; transform coding; video coding; DCT transform coding; MPEG decoder; block predictive coding; commercial MPEG IC; embedded compression; memory reduction; motion compensated decoding; recovery; reference frames; required memory compression; system costs; visible artifacts; Circuit simulation; Costs; Decoding; Digital video broadcasting; Discrete cosine transforms; Laboratories; Motion compensation; Multimedia communication; Transform coding; Video compression;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.713162

Filename

713162