A DSP for DCT-based and wavelet-based video codecs for consumer applications

Author

Okamoto, K. ; Jinbo, T. ; Araki, T. ; Iizuka, Yuki ; Nakajima, H. ; Takahata, M. ; Inoue, H. ; Kurohmaru, S. ; Yonezawa, T. ; Aono, K.

Author_Institution

Semicond. Res. Center, Matsushita Electr. Ind. Co. Ltd., Osaka, Japan

fYear

1996

fDate

5-8 May 1996

Firstpage

359

Lastpage

362

Abstract

We have developed a video DSP which performs real-time encoding and decoding for DCT-based algorithms, such as ITU-T H.261, and wavelet-based subband encoding algorithms. This LSI is suitable for consumer applications as it was implemented using 0.5 μm-CMOS process technology to realize compactness (1 million transistors on 65 mm²) and low power(560 mW). It features a processing unit which performs wavelet filtering at high speeds, a compact DCT circuit, and a fast, flexible DRAM interface for low-cost systems. At 40 MHz, a single chip is capable of processing QCIF size pictures at a rate of over 15 frames/second

Keywords

CMOS digital integrated circuits; VLSI; consumer electronics; decoding; digital signal processing chips; discrete cosine transforms; real-time systems; telecommunication computing; video codecs; video coding; wave digital filters; wavelet transforms; 0.5 micron; 40 MHz; 560 mW; CMOS DSP chip; DCT-based video codec; ITU-T H.261; compact DCT circuit; consumer applications; flexible DRAM interface; high-speed wavelet filtering; low-cost systems; real-time decoding; real-time encoding; subband encoding algorithms; video DSP chip; wavelet-based video codec; Application software; Band pass filters; Convolution; Decoding; Digital signal processing; Discrete cosine transforms; Electronics industry; Encoding; Image coding; Large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 1996., Proceedings of the IEEE 1996

Conference_Location

San Diego, CA

Print_ISBN

0-7803-3117-6

Type

conf

DOI

10.1109/CICC.1996.510575

Filename

510575