Title :
Fast rate-distortion optimisation algorithm for motion-compensated transform coding of video
Author :
Shen, Jiandong ; Wai-Yip Chen
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Inst. of Technol., Chicago, IL, USA
fDate :
2/17/2000 12:00:00 AM
Abstract :
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
Keywords :
motion compensation; rate distortion theory; transform coding; video coding; H.263 test model; RD-Lagrange costs; displaced-frame-difference coding; motion-compensated transform coding; peak signal-to-noise ratio; rate-distortion optimisation algorithm; suboptimal displacement vector positions; video coding;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000302
