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Proceedings Paper

Two New Approaches To Hybrid Image Coding Of Sequences
Author(s): Torbjorn Kronander; Robert Forchheimer
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Paper Abstract

It is well known that when applying image coding to sequences also redundancy in time domain should be removed. An efficient way to do this is to use "hybrid-techniques", i.e. to use predictive coding in time and adaptive transform coding in the spatial domain. By adaptive transform coding we mean threshold coders similar to the "scene adaptive coder" described by Chen and Pratt [3]. Two significant problems of these methods are: 1) The complicated schemes needed to regulate the output bitrate. 2) "Subjective problems", that is blocking effects and other problems that arise from the fact that the conventional transforms are based on a statistical framework instead of being adapted to the human visual system. We propose modifications of the conventional schemes to reduce these effects.

Paper Details

Date Published: 1 May 1986
PDF: 6 pages
Proc. SPIE 0594, Image Coding, (1 May 1986); doi: 10.1117/12.952223
Show Author Affiliations
Torbjorn Kronander, Linkoping University (Sweden)
Robert Forchheimer, Linkoping University (Sweden)


Published in SPIE Proceedings Vol. 0594:
Image Coding
Thomas S. Huang; Murat Kunt, Editor(s)

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