NDLI: An adaptive fast search algorithm for block motion estimation in H.264

Content Provider	Springer Nature Link
Author	Han, Cong dao Liu, Ji lin Xiang, Zhi yu
Copyright Year	2010
Abstract	Motion estimation is an important issue in H.264 video coding systems because it occupies a large amount of encoding time. In this paper, a novel search algorithm which utilizes an adaptive hexagon and small diamond search (AHSDS) is proposed to enhance search speed. The search pattern is chosen according to the motion strength of the current block. When the block is in active motion, the hexagon search provides an efficient search means; when the block is inactive, the small diamond search is adopted. Simulation results showed that our approach can speed up the search process with little effect on distortion performance compared with other adaptive approaches.
Starting Page	637
Ending Page	644
Page Count	8
File Format	PDF
ISSN	18691951
Journal	Journal of Zhejiang University SCIENCE C
Volume Number	11
Issue Number	8
e-ISSN	1869196X
Language	English
Publisher	SP Zhejiang University Press
Publisher Date	2010-07-31
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	Adaptive hexagon and small diamond search (AHSDS) Search pattern Mean absolute difference (MAD) Optimal point Communications Engineering, Networks Electronics and Microelectronics, Instrumentation Computer Systems Organization and Communication Networks Computer Hardware Electrical Engineering Computer Science
Content Type	Text
Resource Type	Article
Subject	Engineering

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An adaptive fast search algorithm for block motion estimation in H.264