NDLI: A finite state/frame difference interpolative vector quantizer for low rate image sequence coding

Content Provider	IEEE Xplore Digital Library
Author	Shen, H.-H. Baker, R.L.
Copyright Year	1988
Description	Author affiliation: Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA (Shen, H.-H.; Baker, R.L.)
Abstract	A finite-state vector quantizer (VQ) suitable for both intraframe and interframe coding is presented. Interblock and interframe memory is expressed through a state variable driven by an improved classifier which keys on the intensity gradients of a block's neighbours and its own interframe motion. A bilinear interpolator reduces the energy of foreground residuals encoded by the quantization, improving edge rendition and limiting blocking artifacts. Background blocks are vector predictive coded using simple frame differencing and codebooks built with a gradient design algorithm. The codec at 0.4 bit/pixel outperforms a similar but non-finite-state intraframe VQ at 1.0 bit/pixel by 4 dB.<>
Starting Page	1188
Ending Page	1191
File Size	498034
Page Count	4
File Format	PDF
ISSN	15206149
DOI	10.1109/ICASSP.1988.196811
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-04-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image sequences Image coding Image storage Codecs Digital integrated circuits Laboratories Vector quantization Algorithm design and analysis Pixel Image resolution
Content Type	Text
Resource Type	Article

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A finite state/frame difference interpolative vector quantizer for low rate image sequence coding