A HIGH-PERFORMANCE FIXED-LENGTH COMPRESSION METHOD USING THE KARHUNEN-LOEVE TRANSFORM

Authors
NASIOPOULOS P YEDLIN M WARD RK
Citation
P. Nasiopoulos et al., A HIGH-PERFORMANCE FIXED-LENGTH COMPRESSION METHOD USING THE KARHUNEN-LOEVE TRANSFORM, IEEE transactions on consumer electronics, 41(4), 1995, pp. 1189-1196
Citations number
10
Categorie Soggetti
Telecommunications,"Engineering, Eletrical & Electronic
Journal title
IEEE transactions on consumer electronics → ACNP
ISSN journal
00983063
Volume
41
Issue
4
Year of publication
1995
Pages
1189 - 1196
Database
ISI
SICI code
0098-3063(1995)41:4<1189:AHFCMU>2.0.ZU;2-J
Abstract
A compression method is presented which combines the distinct advantag e of being fixed length with the visual picture quality of transform-b ased coding methods. This method compresses the Karhunen-Loeve transfo rm coefficients of 8x8 pixel blocks of the picture and attains a compr ession ratio of 15.37 : 1 for color images. Compared to the absolute m oment block truncation coding, the other known fixed length compressio n method, our method improves the compression ratio by 68% and signifi cantly improves the visual quality of the reconstructed picture.