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Proceedings Paper

Experimental comparison of segmented image coding and warped polynomial image coding
Author(s): Wilfried R. Philips; Jeroen Van Overloop
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Paper Abstract

This paper compares two second-generation image coding methods. The first method is segmented image coding (SIC) which segments images into regions of stationary image intensity and approximates the gray values in each region by a bi-variate polynomial. The second method is warped image coding (WIC) which represents images in terms of image- dependent base functions, but which may also be viewed as an adaptive subsampling method. The paper explains the most important features of both techniques and compares them experimentally at a bit rate of 0.3 bit per pixel on the 'peppers' image. The results show that WIC produces the best subjective image quality. On the other hand, WIC is computationally much more demanding than the particular SIC method considered in this paper. Both SIC and WIC produce better images than JPEG at the considered rate.

Paper Details

Date Published: 16 September 1996
PDF: 9 pages
Proc. SPIE 2952, Digital Compression Technologies and Systems for Video Communications, (16 September 1996); doi: 10.1117/12.251291
Show Author Affiliations
Wilfried R. Philips, State Univ. of Gent (Belgium)
Jeroen Van Overloop, State Univ. of Gent (Belgium)

Published in SPIE Proceedings Vol. 2952:
Digital Compression Technologies and Systems for Video Communications
Naohisa Ohta, Editor(s)

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