DocumentCode :
2705869
Title :
Efficient Temporal Search Range Prediction for Motion Estimation in H.264
Author :
Kim, Changsung ; Kuo, C. C Jay
Author_Institution :
Dept. of Electr. Eng. & Integrated Media Syst. Center, Univ. of Southern California, Los Angeles, CA
fYear :
2005
fDate :
Oct. 30 2005-Nov. 2 2005
Firstpage :
1
Lastpage :
4
Abstract :
An efficient search range prediction method is proposed to reduce the complexity of motion search in the H.264 video coding standard in this work. The main idea is to predict the temporal search range by modeling the relationship between the rate-distortion (RD) coding gain and the required computational complexity. The proposed algorithm first predicts the temporal search range to maximize the ratio of the expected RD coding gain and the normalized computational cost. Then, fast motion search is performed within the predicted search range with some early termination rule. Experimental results show that the proposed algorithm can save approximately 63-75% of the encoding complexity in motion estimation of H.264 (JM9.3) with negligible degradation in the RD performance
Keywords :
code standards; computational complexity; motion estimation; prediction theory; rate distortion theory; video coding; H.264 video coding; computational complexity; encoding complexity; motion estimation; motion search; rate-distortion coding gain; search range prediction method; temporal search; Computational complexity; Computational efficiency; Degradation; Encoding; Motion estimation; Prediction algorithms; Prediction methods; Predictive models; Rate-distortion; Video coding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Multimedia Signal Processing, 2005 IEEE 7th Workshop on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9288-4
Electronic_ISBN :
0-7803-9289-2
Type :
conf
DOI :
10.1109/MMSP.2005.248645
Filename :
4014066
Link To Document :
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