Adaptive Selection of Motion Estimation Block Size for Rate-Distortion Optimization | Zendy

Vinaya Gohokar | Zendy; V.N. Gohokar | Zendy

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Adaptive Selection of Motion Estimation Block Size for Rate-Distortion Optimization

Author(s) -

Vinaya Gohokar,

V.N. Gohokar

Publication year - 2011

Publication title -

international journal of computer applications

Language(s) - English

Resource type - Journals

ISSN - 0975-8887

DOI - 10.5120/2205-2802

Subject(s) - computer science , block size , block (permutation group theory) , selection (genetic algorithm) , rate–distortion optimization , distortion (music) , estimation , motion estimation , motion (physics) , fast motion , algorithm , mathematical optimization , artificial intelligence , telecommunications , block matching algorithm , mathematics , computer security , amplifier , geometry , management , bandwidth (computing) , key (lock) , object (grammar) , video tracking , economics

The employment of the Variable Block size motion estimation technique introduces a new optimization issue for the motion compensated transform coding. An increase in bit rate allocation is necessary to accommodate VBS motion vectors. An algorithm for adaptive selection of motion estimation block size is proposed for R-D optimal motion estimation. It avoids reduction in the block size in visually irrelevant areas. Improvement in R-D performance is obtained at reduced complexity.

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