DocumentCode
1528582
Title
Direct transform to transform computation
Author
Skodras, Athanassios N.
Author_Institution
Electron. Lab., Patras Univ., Greece
Volume
6
Issue
8
fYear
1999
Firstpage
202
Lastpage
204
Abstract
An efficient direct method for the computation of a length-N discrete cosine transform (DCT) given two adjacent length-(N/2) DCT coefficients, is presented. The computational complexity of the proposed method is lower than the traditional approach for lengths N>8. Savings of N memory locations and 2N data transfers are also achieved.
Keywords
computational complexity; data compression; discrete cosine transforms; signal processing; transform coding; DCT coefficients; computational complexity; data transfers; discrete cosine transform; efficient direct method; memory locations saving; signal compression; Computational complexity; Discrete cosine transforms; Discrete transforms; Flow graphs; Image coding; Image resolution; Signal resolution; Transcoding; Transform coding; Video compression;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/97.774865
Filename
774865
Link To Document