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Proceedings Paper

Preprocessing for improved performance in image and video coding
Author(s): V. Ralph Algazi; Gary E. Ford; Adel I. El-Fallah; Robert R. Estes Jr.
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Paper Abstract

In previous work, we reported on the benefits of noise reduction prior to coding of very high quality images. Perceptual transparency can be achieved with a significant improvement in compression as compared to error free codes. In this paper, we examine the benefits of preprocessing when the quality requirements are not very high, and perceptible distortion results. The use of data dependent anisotropic diffusion that maintains image structure, edges, and transitions in luminance or color is beneficial in controlling the spatial distribution of errors introduced by coding. Thus, the merit of preprocessing is for the control of coding errors. In this preliminary study, we only consider preprocessing prior to the use of the standard JPEG and MPEG coding techniques.

Paper Details

Date Published: 22 August 1995
PDF: 10 pages
Proc. SPIE 2564, Applications of Digital Image Processing XVIII, (22 August 1995); doi: 10.1117/12.217401
Show Author Affiliations
V. Ralph Algazi, Univ. of California/Davis (United States)
Gary E. Ford, Univ. of California/Davis (United States)
Adel I. El-Fallah, Univ. of California/Davis (United States)
Robert R. Estes Jr., Univ. of California/Davis (United States)

Published in SPIE Proceedings Vol. 2564:
Applications of Digital Image Processing XVIII
Andrew G. Tescher, Editor(s)

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