Presentation 1997/10/17
Implementation of Encoder-Decoder for Low Bitrate Visual Communication dedicated to Mobile Computing
Koji MIYANOHANA, Gen FUJITA, Kazuhiro YANAGIDA, Takao ONOYE, Isao SHIRAKAWA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A single chip encoder-decoder dedicated to low bitrate visual communication is proposed, with the main theme focused on the object extraction and vector quantization. New schemes are introduced into an edge detector so as to extract objects by means of the block-level edge detection in conjunction with the pel-level edge detection and into a PE(Processing Element) array so as to be shared by the vector quantizer and the motion estimator. Owing to sophisticated architectures, these CODEC facilities have been implemented in 723.24mm^2 by a 0.6μm triple-metal CMOS technology, which can enable the visual communication of QCIF(176×144) 10fps pictures at a bitrate of 32Kbps or less. The designed encoder-decoder operates at 10MHz, and dissipates 147mW from a single 3.3V supply.
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Keyword(in English) low bitrate coding / visual communication / object extraction / vector quantization
Paper # ICD97-159-170
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Conference Date 1997/10/17(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Implementation of Encoder-Decoder for Low Bitrate Visual Communication dedicated to Mobile Computing
Sub Title (in English)
Keyword(1) low bitrate coding
Keyword(2) visual communication
Keyword(3) object extraction
Keyword(4) vector quantization
1st Author's Name Koji MIYANOHANA
1st Author's Affiliation Dept. Information Systems Eng., Osaka University()
2nd Author's Name Gen FUJITA
2nd Author's Affiliation Dept. Information Systems Eng., Osaka University
3rd Author's Name Kazuhiro YANAGIDA
3rd Author's Affiliation Dept. Information Systems Eng., Osaka University
4th Author's Name Takao ONOYE
4th Author's Affiliation Dept. Information Systems Eng., Osaka University
5th Author's Name Isao SHIRAKAWA
5th Author's Affiliation Dept. Information Systems Eng., Osaka University
Date 1997/10/17
Paper # ICD97-159-170
Volume (vol) vol.97
Number (no) 319
Page pp.pp.-
#Pages 8
Date of Issue