DocumentCode
988891
Title
Family of order-4 four-level orthogonal transforms
Author
Cham, W.K.
Author_Institution
University of Loughborough, Department of Electronic & Electrical Engineering, Loughborough, UK
Volume
19
Issue
21
fYear
1983
Firstpage
869
Lastpage
871
Abstract
A family of order-4 four-level orthogonal transforms is derived using a novel concept called dyadic symmetry. The well known order-4 discrete cosine, sine, Haar and slant transforms are members of this family. Comparison among transforms within this family shows that all these well known transforms can be exchanged with other members of the family giving either improved performance or reduced computational requirements.
Keywords
picture processing; transforms; Haar transforms; computational requirements; discrete cosine transforms; dyadic symmetry; order-4 four-level orthogonal transforms; sine transforms; slant transforms;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19830592
Filename
4248120
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