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A Fully Parallel Vector-Quantization Processor for Real-Time Motion-Picture Compression

A Fully Parallel Vector-Quantization Processor for Real-Time Motion-Picture Compression

Authors :
Tadashi Shibata
T. Morimoto
H. Akutsu
Tadahiro Ohmi
K. Marumoto
A. Nakada
Masahiro Konda
A. Kawamura
Source :
IEEE Journal of Solid-State Circuits. 34(6):822-830
Publication Year :
1999
Publisher :
Institute of Electrical and Electronics Engineers, 1999.

Abstract

A vector-quantization (VQ) processor system has been developed aiming at real-time compression of motion pictures using a 0.6-/spl mu/m triple-metal CMOS technology. The chip employs a fully parallel single-instruction, multiple-data architecture having a two-stage pipeline. Each pipeline segment consists of 19 cycles, thus enabling the execution of a single VQ operation in only 19 clock cycles. As a result, it has become possible to encode a full-color picture of 640/spl times/480 pixels in less than 33 ms, i.e., the real-time compression of moving pictures has become available. The chip is scalable up to eight-chip master-slave configuration in conducting fully parallel search for 2-K template vectors. The chip operates at 17 MHz with a power dissipation of 0.29 W under a power-supply voltage of 3.3 V.

Details

Language :
English
ISSN :
00189200
Volume :
34
Issue :
6
Database :
OpenAIRE
Journal :
IEEE Journal of Solid-State Circuits
Accession number :
edsair.doi.dedup.....2e83926f870e2df77c6e3f5d2810de4c