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Rate-distortion optimized image compression using wedgelets
Proceedings. International Conference on Image Processing
Most wavelet-based image coders fail to model the joint coherent behavior of wavelet coefficients near edges. Wedgelets offer a convenient parameterization for the edges in an image, but they have yet to yield a viable compression algorithm. In this paper, we propose an extension of the zerotree-based Space-Frequency Quantization (SFQ) algorithm by adding a wedgelet symbol to its tree-pruning optimization. This incorporates wedgelets into a ratedistortion compression framework and allows
doi:10.1109/icip.2002.1038949
dblp:conf/icip/RombergWCB02
fatcat:yvanwhr475d2for4oimbecsuki