Academic Profile : Faculty

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Assoc Prof Lau Chiew Tong
Associate Professor, School of Computer Science and Engineering
Chiew-Tong Lau received his B.Eng. degree from Lakehead University in 1983 and M.A.Sc. and Ph.D. degrees in Electrical Engineering from the University of British Columbia in 1985 and 1990 respectively. He is currently an Associate Professor in the School of Computer Engineering, Nanyang Technological University, Singapore. His main research interests are in wireless communications.
Wireless Communications
 
US 2014/0301462 A1: Lossless Image and Video Compression (2017)
Abstract: A method is provided for encoding an intra predicted residual block of an image for use in image or video compression. The intra predicted residual block is associated with an intra prediction coding mode. The method includes generating a set of residual error blocks including residual data with different statistical characteristics from the residual data in the intra predicted residual block. Each of the residual error blocks is scanned and entropy coded to produce a first set of bit streams. The lengths of each of the first set of bit streams are recorded. The intra predicted residual block is also scanned and entropy coded to produce a second bit stream. The length of the second bit stream is recorded. Selecting the minimum length bit stream from the first set of bit streams and the second bit stream as the output coded bit stream of the intra predicted residual block.