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On using hierarchical motion history for motion estimation in H.264/AVC

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5 Author(s)
Yongfang Liang ; Comput. Sci. & Eng. Dept., Univ. of Texas, Arlington, TX, USA ; Ahmad, I. ; Jiancong Luo ; Yu Sun
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The embedded multireference frames selection with variable block-size motion compensation model drastically increases the computational complexity of the H.264/AVC video coding standard. This paper proposes an adaptive hierarchical motion estimation (ME) algorithm for H.264/AVC with the objective of minimizing the complexity while maximizing the visual quality. The proposed algorithm is based on a framework that exploits the "history" of the motion intensity from a video sequence in order to control ME. The complexity and memory requirement for this meta information is low. The algorithm determines the motion intensity of a video sequence at three levels and accordingly employs different ME techniques. The results certify that the history-based hierarchical information can be very effective in improving the efficiency of ME.

Published in:

Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:15 ,  Issue: 12 )

Date of Publication:

Dec. 2005

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