DocumentCode
1231648
Title
Reduced bit rate uniform quantisation for SPIHT encoding
Author
Yin, X.-W. ; Fleury, M. ; Downton, A.C.
Author_Institution
Dept. of Electron. Syst. Eng., Univ. of Essex, Colchester, UK
Volume
39
Issue
12
fYear
2003
fDate
6/12/2003 12:00:00 AM
Firstpage
902
Lastpage
903
Abstract
Set partitioning in hierarchical trees (SPIHT) is a scalar quantiser for images that have undergone subband decomposition by wavelet transform. Reduced bit rates have been achieved by merging the first and second passes of the already efficient SPIHT algorithm. The modification requires neither entropy encoding nor significant increase to the algorithmic complexity.
Keywords
image coding; quantisation (signal); trees (mathematics); wavelet transforms; SPIHT encoding; reduced bit rate uniform quantisation; scalar quantiser; set partitioning in hierarchical trees; subband decomposition; wavelet-transformed image;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20030593
Filename
1209483
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