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- W1843810366 abstract "We propose an adaptive sub-band image coder designed according to subjective criteria. A pre-processing technique is applied to the high subbands and discards local information irrelevant to the overall subjective quality. Pixels not removed by this technique are classified as edges and non-edges by means of a specific algorithm designed for each sub-band. The two classes in each high-frequency sub-band are quantized with entropy constrained vector quantizers (ECVQ). The low sub-band is encoded with an edge-preserving ADPCM. Both in terms of PSNR and visual quality the proposed codec offers meaningful improvements compared to the JPEG algorithm." @default.
- W1843810366 created "2016-06-24" @default.
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- W1843810366 date "2002-12-24" @default.
- W1843810366 modified "2023-09-26" @default.
- W1843810366 title "Edge-preserving ADPCM and ECVQ coding of image sub-bands using subjective criteria" @default.
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- W1843810366 doi "https://doi.org/10.1109/icip.1996.560518" @default.
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