| Paper: | IMDSP-L3.4 | ||
| Session: | Still Image Coding | ||
| Time: | Thursday, May 20, 10:30 - 10:50 | ||
| Presentation: | Lecture | ||
| Topic: | Image and Multidimensional Signal Processing: Image and Video Coding | ||
| Title: | EMBEDDED COLOR IMAGE CODING USING CONTEXT-MODELED WAVELET DIFFERENCE REDUCTION | ||
| Authors: | Yufei Yuan; University of Alberta | ||
| Mrinal Mandal; University of Alberta | |||
| Abstract: | A novel embedded wavelet coding algorithm for color imageand video compression is proposed. A color image isfirst transformed into luminance/chrominance (YUV) colorspace before computing the discrete wavelet transform. Eachof the three color components is then transformed separatelyinto a wavelet pyramid. The luminance component is compressedwith context-modeled wavelet difference reduction(CM-WDR). The chrominance components are compressedwith the assistance of contextual information formed duringthe coding of the luminance component. Our experimentalresults show that the proposed algorithm performs much better than two wavelet-based benchmark schemes, namely,CEZW and JPEG-2000. | ||
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