Joshi et al., 1995 - Google Patents
Comparison of different methods of classification in subband coding of imagesJoshi et al., 1995
- Document ID
- 7090333517547216180
- Author
- Joshi R
- Fischer T
- Bamberger R
- Publication year
- Publication venue
- Still-Image Compression
External Links
Snippet
Spatially varying quantization schemes try to exploit the non-stationary nature of image subbands. One technique for spatially varying quantization is classification based on AC energy of blocks. Several different methods of subband classification have been proposed in …
- 230000000875 corresponding 0 abstract description 6
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- H04N19/124—Quantisation
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
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