My general research activities are in visual/multimedia computing and communications. I have published numerous algorithms for computer graphics and image processing (image coding in particular), some of which are being used by practitioners, such as a fast optimal color quantizer, and a Context-...
My general research activities are in visual/multimedia computing and communications. I have published numerous algorithms for computer graphics and image processing (image coding in particular), some of which are being used by practitioners, such as a fast optimal color quantizer, and a Context-based Adaptive Lossless Image Codec (CALIC) which was developed jointly with Nasir Memon as a candidate algorithm for the new JPEG lossless standard. CALIC(executable) is widely used as a benchmark in performance evaluation of lossless image codecs.