The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.
Classified Vector Quantization of Images
Abstract
Vector quantization (VQ) provides many attractive features for image coding with high compression ratios. However, initial studies of image coding with VQ have revealed several difficulties, most notably edge degradation and high computational complexity. We address these two problems and propose a new coding method, classified vector quantization (CVQ), which is based on a composite source model. Blocks with distinct perceptual features, such as edges, are generated from different subsources, i.e., belong to different classes. In CVQ, a classifier determines the class for each block, and the block is then coded with a vector quantizer designed specifically for that class. We obtain better perceptual quality with significantly lower complexity with CVQ when compared to ordinary VQ. We demonstrate with CVQ visual quality which is comparable to that produced by existing coders of similar complexity, for rates in the range 0.6-1.0 bits/pixel.
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Citations
Cites
An Algorithm for Vector Quantizer Design
Linde, Y., Buzo, A., & Gray, R. (1980) · IEEE Transactions on Communications · doi:10.1109/tcom.1980.1094577 · Cited by 7,201
Gray, R. M. (1990) · Readings in Speech Recognition · doi:10.1016/b978-0-08-051584-7.50011-5 · Cited by 2,845
Marlow, B. K. (1979) · Optica Acta: International Journal of Optics · doi:10.1080/716099475 · Cited by 1,004
Asymptotically optimal block quantization
Gersho, A. (1979) · IEEE Transactions on Information Theory · doi:10.1109/tit.1979.1056067 · Cited by 863
Self-citationHubel, D. H., & Wiesel, T. N. (1979) · Scientific American · doi:10.1038/scientificamerican0979-150 · Cited by 594
Netravali, A. N., & Limb, J. O. (1980) · Proceedings of the IEEE · doi:10.1109/proc.1980.11647 · Cited by 451
Nonlinear space-variant postprocessing of block coded images
Ramamurthi, B., & Gersho, A. (1986) · IEEE Transactions on Acoustics Speech and Signal Processing · doi:10.1109/tassp.1986.1164961 · Cited by 264
Self-citationImage coding using vector quantization
Gersho, A., & Ramamurthi, B. (2005) · IEEE International Conference on Acoustics Speech and Signal Processing · doi:10.1109/icassp.1982.1171673 · Cited by 150
Self-citationAsymptotic performance of block quantizers with difference distortion measures
Yamada, Y., Tazaki, S., & Gray, R. M. (1980) · IEEE Transactions on Information Theory · doi:10.1109/tit.1980.1056142 · Cited by 150
Global convergence and empirical consistency of the generalized Lloyd algorithm
Sabin, M. J., & Gray, R. M. (1986) · IEEE Transactions on Information Theory · doi:10.1109/tit.1986.1057168 · Cited by 139
Metadata
- Authors
- Ramamurthi, B., & Gersho, A.
- Venue
- IEEE Transactions on Communications
- Published
- 1986
- Volume
- 34
- Issue
- 11
- Pages
- 1105-1115
- ISSN
- 0090-6778 (ISSN-L)
- OpenAlex
- W2152037928
- Cited by
- 423
- References
- 15
- FWCI
- 3.44
- Type
- journal article
- Language
- en
- Open access
- closed
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