ENHANCED MOTION ESTIMATION FOR INTERFRAME WAVELET VIDEO CODING (TP-P7)

Author(s) : Chia-Yang Tsai (National Chiao Tung University, Taiwan) Han-Kuang Hsu (National Chiao Tung University, Taiwan) Hsiang-Cheh Huang (National Chiao Tung University, Taiwan) Hsueh-Ming Hang (National Chiao Tung University, Taiwan) Guo-Zua Wu (Industrial Technology Research Institute, Taiwan)

Abstract : An enhanced motion estimation scheme is incorporated into the interframe wavelet coding architecture in this paper. Interframe wavelet coding has the advantage of SNR, temporal, and spatial scalability, and is a potential candidate for the on-going MPEG-21 scalable video cod-ing standard. Interframe wavelet coding contains two main components: motion-compensated temporal filtering (MCTF) and wavelet coding. The temporal reference pic-tures are produced by MCTF. Therefore, motion estima-tion plays an important role in deciding the coding per-formance. In this contribution, we modified the motion estimation syntax/scheme originally specified in the MPEG Advanced Video Coding (AVC) and use it in the interframe wavelet structure. In addition, the techniques of I-block, bi-directional motion estimation, and £f-value adjustment are employed. Simulation results show very promising performance particularly on subjective quality.

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