DocumentCode
807174
Title
Coefficient grouping method for shape-adaptive DCT
Author
Bi, M. ; Ong, S.H. ; Ang, Y.H.
Author_Institution
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Volume
32
Issue
3
fYear
1996
fDate
2/1/1996 12:00:00 AM
Firstpage
201
Lastpage
202
Abstract
A generalised transform scheme for arbitrarily shaped image segments for the purpose of image compression is presented. The main feature of the scheme is an adaptive coefficient grouping method used in the second stage of the DCT. Experimental results show that this transform scheme performs better in terms of transform efficiency and maximum reducible bits than previously proposed methods for all the image models used
Keywords
adaptive codes; data compression; discrete cosine transforms; image coding; image segmentation; transform coding; coefficient grouping; image compression; image model; image segments; maximum reducible bits; shape-adaptive DCT; transform efficiency;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19960145
Filename
490800
Link To Document