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A complexity aware, variable-bit-depth motion estimation

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3 Author(s)
Shih-Hao Wang ; Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Chung-Neng Wang ; Tihao Chiang

Demands for using different complexity level algorithms to deliver multimedia content delivery over portable devices are increasing thanks to advanced battery technology. This work describes a novel complexity aware motion estimation for H.264 based on pixel representation of different bit-depth and a simple scene change detection module. The experimental results show that with identical searching complexity, improvement on averaged PSNR is more than 0.2 dB for 4-bit representation and more than 2 dB for 1/2-bit representation as compared to the conventional bit-truncation method.

Published in:

Consumer Electronics, 2005. ICCE. 2005 Digest of Technical Papers. International Conference on

Date of Conference:

8-12 Jan. 2005