High-Fidelity Integrated Lossless Lossy Compression And Reconstruction Of Images

    Authors

    M. A. Bassiouni; N. S. Tzannes;M. C. Tzannes

    Comments

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    Abbreviated Journal Title

    Opt. Eng.

    Keywords

    Lossless Lossy Compression Techniques; Reconstructed Images; Optics

    Abstract

    We describe a compression scheme that aims at improving the fidelity of reconstructed images through the parallel application of both lossless and lossy compression techniques. The purpose of the scheme is to obtain compression ratios higher than those obtained by lossless compression schemes and at the same time produce reconstructed images with better fidelity than those normally obtained with lossy techniques. The straightforward (nonoptimized) application of this scheme consistently improves the fidelity of reconstructed images compared to a raw discrete cosine transform (DCT) algorithm. Using standard lossless compression utilities, the integrated scheme gives better fidelity (up to 62% improvement in mean square error) than the raw DCT algorithm under equal compression ratios. Further research is needed to optimize the integrated method, adapt it to the Joint Photographic Experts Group and other equivalent schemes, and evaluate the resulting performance. A discussion of ways that can further improve the efficiency of the integrated approach is given.

    Journal Title

    Optical Engineering

    Volume

    32

    Issue/Number

    8

    Publication Date

    1-1-1993

    Document Type

    Article

    Language

    English

    First Page

    1848

    Last Page

    1853

    WOS Identifier

    WOS:A1993LR11200024

    ISSN

    0091-3286

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