DocumentCode
2105937
Title
A performance study of DCT and subband image codecs with zero-zone quantizers
Author
Ramkumar, M. ; Akansu, A.
Author_Institution
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Volume
5
fYear
1998
fDate
31 May-3 Jun 1998
Firstpage
118
Abstract
It has been shown that zero-zone quantizers offer very good R-D tradeoffs, especially at low bit rates, in spite of their simplicity in implementation and concept. The performance of such codecs for still and moving images have been reported for a dyadic 10-band subband coder. In this paper we extend those results to other subband image codecs, and DCT, and compare their performances
Keywords
discrete cosine transforms; image coding; quantisation (signal); DCT; R-D tradeoffs; bit rates; moving images; still images; subband image codecs; zero-zone quantizers; Bit rate; Codecs; Compaction; Computational complexity; Discrete cosine transforms; Equations; Filters; Quantization; Rate-distortion;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location
Monterey, CA
Print_ISBN
0-7803-4455-3
Type
conf
DOI
10.1109/ISCAS.1998.694422
Filename
694422
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