A 130 Mb/s compact HDTV codec based on a motion-adaptive DCT algorithm

Author

Konoshita, T. ; Nakahashi, Tomoko

Author_Institution

Central Res. Lab., Hitachi Ltd., Tokyo, Japan

Volume

10

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

122

Lastpage

129

Abstract

The authors describe the principle and implementation of a 130 Mb/s compact HDTV codec based on a motion-adaptive DCT (discrete cosine transform) algorithm. They describe a data compression algorithm using motion-adaptive (motion processing over 5 or 10 frames) intrafield two-dimensional (8×8) DCT coding and block-adaptive quantization with eight modes which is suitable for recording systems. The hardware of the codec using a parallel signal processing architecture and three types of gate-array LSIs is discussed. The picture quality evaluation is considered, and suitable picture quality for distribution use is confirmed

Keywords

codecs; computerised picture processing; data compression; digital signal processing chips; high definition television; large scale integration; logic arrays; parallel processing; transforms; 130 Mbit/s; HDTV codec; block-adaptive quantization; data compression algorithm; discrete cosine transform; distribution; gate array LSI; intrafield 2D DCT coding; motion processing; motion-adaptive DCT algorithm; parallel signal processing architecture; picture quality; recording systems; Codecs; Data compression; Discrete cosine transforms; HDTV; Hardware; Quantization; Signal processing algorithms; Video compression; Video recording; Video signal processing;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.124462

Filename

124462