NDLI: Perceptual rate control algorithms for fax-based video compression

Content Provider	IEEE Xplore Digital Library
Author	Yi-Jen Chin Berger, T.
Copyright Year	1997
Description	Author affiliation: Lucent Technologies, USA (Yi-Jen Chin)
Abstract	Summary form only given. Video samples usually are predicted from coded versions of nearby samples sent either earlier in the same frame or in the previous frame. Analysis of the human vision system (HVS) suggests that we may not need to correct values of residuals that do not exceed a perceptual threshold sometimes referred to in the literature of perception as the just-noticeable-distortion (JND). The ideal JND provides each pixel being coded with a threshold level below which discrepancies are perceptually distortion-free. Also of interest is the rate control analysis of noticeable, above threshold distortions that inevitably result at low bit rates. Because facsimile-based video compression (FBVC) processing is done in the spatio-temporal pixel domain, we can exploit the local psycho-perceptual properties of the HVS. Our proposed rate control algorithms are distinguished by being computationally economical, transform-free, devoid of block-based artifacts, and capable of easily providing a constant bit rate video stream.
File Size	63415
File Format	PDF
ISBN	0818677619
ISSN	10680314
DOI	10.1109/DCC.1997.582086
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-03-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video compression Bit rate Quantization Humans Psychology Machine vision Videoconference Layout Degradation Streaming media
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications

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