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Proceedings Paper

Simple high-quality lossy image coding scheme
Author(s): Shaolin Bi; Khalid Sayood
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Paper Abstract

A simple yet efficient image data compression method is presented in this paper. This method is based on coding only those segments of the image that are perceptually significant to the reconstruction of the image. Sequences of image pixels whose gray level differences from the pixels of the previous row exceed two prespecified thresholds are considered significant. These pixels are coded using a DPCM scheme with recursively indexed nonuniform quantizers. Simulation results show that this scheme can get subjectively satisfactory reconstructed images at low bit rates. It is also computationally very simple which makes it amenable to fast implementation.

Paper Details

Date Published: 1 May 1994
PDF: 11 pages
Proc. SPIE 2186, Image and Video Compression, (1 May 1994); doi: 10.1117/12.173911
Show Author Affiliations
Shaolin Bi, Univ. of Nebraska/Lincoln (United States)
Khalid Sayood, Univ. of Nebraska/Lincoln (United States)

Published in SPIE Proceedings Vol. 2186:
Image and Video Compression
Majid Rabbani; Robert J. Safranek, Editor(s)

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