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

TitleA high performance fixed-length compression method using the Karhunen-Loeve transform
Publication TypeJournal Article
Year of Publication1995
AuthorsNasiopoulos, P., M. Yedlin, and R. K. Ward
JournalConsumer Electronics, IEEE Transactions on
Pagination1189 -1196
Date Publishednov.
Keywordsabsolute moment block truncation coding, color images, compression ratio, data compression, fixed-length compression method, image coding, image reconstruction, Karhunen-Loeve transform coefficients, reconstructed picture, transform coding, transform-based coding methods, transforms, visual picture quality, visual quality

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


a place of mind, The University of British Columbia

Electrical and Computer Engineering
2332 Main Mall
Vancouver, BC Canada V6T 1Z4
Tel +1.604.822.2872
Fax +1.604.822.5949

Emergency Procedures | Accessibility | Contact UBC | © Copyright 2021 The University of British Columbia