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Fast rate-distortion optimisation algorithm for motion-compensated transform coding of video

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2 Author(s)
Jiandong Shen ; Dept. of Electr. & Comput. Eng., Illinois Inst. of Technol., Chicago, IL, USA ; Wai-Yip Chen

A reduced-complexity but effective search scheme for rate-distortion (RD) optimisation of motion vector and displaced-frame-difference coding is proposed. Through predicting the relative order of the RD-Lagrange costs, a large proportion of suboptimal displacement vector positions are eliminated. In comparison with a popular H.263 test model, the proposed scheme leads to a ~0.5 dB improvement in the peak signal-to-noise ratio

Published in:

Electronics Letters  (Volume:36 ,  Issue: 4 )