A fixed-length compression method using the Karhunen-Loeve transform

TitleA fixed-length compression method using the Karhunen-Loeve transform
Publication TypeConference Paper
Year of Publication1995
AuthorsNasiopoulos, P., M. Yedlin, and R. K. Ward
Conference NameCommunications, Computers, and Signal Processing, 1995. Proceedings. IEEE Pacific Rim Conference on
Pagination581 -584
Date Publishedmay.
Keywords8 pixel blocks, 8 times, absolute moment block truncation coding, color images, compression ratio, data compression, fixed-length compression method, image coding, image reconstruction, Karhunen-Loeve transform, reconstructed picture, transform coding, transform-based coding methods, transforms, visual picture quality
Abstract

A compression method is presented which combines the distinct advantage of being fixed length with the visual picture quality of transform-based coding methods. This method compresses the Karhunen-Loeve transform coefficients of 8 times;8 pixel blocks of the picture and attains a compression ratio of 15.37:1 for color images. Compared to the absolute moment block truncation coding, the other known fixed length compression method, our method improves the compression ratio by 68% and significantly improves the visual quality of the reconstructed picture

URLhttp://dx.doi.org/10.1109/PACRIM.1995.519598
DOI10.1109/PACRIM.1995.519598

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