A complexity aware, variable-bit-depth motion estimation

Author

Wang, Shih-Hao ; Wang, Chung-Neng ; Chiang, Tihao

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2005

fDate

8-12 Jan. 2005

Firstpage

233

Lastpage

234

Abstract

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.

Keywords

computational complexity; image representation; image sequences; motion estimation; multimedia communication; video coding; video streaming; H.264; complexity aware motion estimation; multimedia content delivery; pixel representation; portable devices; scene change detection module; variable-bit-depth motion estimation; Batteries; Change detection algorithms; Image converters; Layout; Motion detection; Motion estimation; PSNR; Scalability; Switches; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Print_ISBN

0-7803-8838-0

Type

conf

DOI

10.1109/ICCE.2005.1429803

Filename

1429803