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420 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 16, NO. 3, MARCH 2006 A Fast Adaptive Motion Estimation Algorithm
 

Summary: 420 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 16, NO. 3, MARCH 2006
A Fast Adaptive Motion Estimation Algorithm
Ishfaq Ahmad, Senior Member, IEEE, Weiguo Zheng, Member, IEEE, Jiancong Luo, Member, IEEE, and
Ming Liou, Life Fellow, IEEE
Abstract--Motion estimation (ME) is a multistep process that in-
volves not one, but a combination of techniques, such as motion
starting point, motion search patterns, and adaptive control to curb
the search, avoidance of search stationary regions, etc. The collec-
tive efficiency of these techniques is what makes a ME algorithm
robust and efficient across the board. This paper proposes a ME al-
gorithm that is an embodiment of several effective ideas for finding
the most accurate motion vectors (MVs) with the aim to maximize
the encoding speed as well as the visual quality. The proposed al-
gorithm takes advantage of the correlation between MVs in both
spatial and temporal domains, controls to curb the search, avoids
of search stationary regions, and uses switchable shape search pat-
terns to accelerate motion search. The algorithm yields very sim-
ilar quality compared to the full search but with several hundred
times faster speed. We have evaluated the algorithm through a
comprehensive performance study that shows that the proposed

  

Source: Ahmad, Ishfaq - Department of Computer Science and Engineering, University of Texas at Arlington

 

Collections: Computer Technologies and Information Sciences