NDLI: Paralleled two-pass hexagonal algorithm for motion estimation

Content Provider	IEEE Xplore Digital Library
Author	Yunsong Wu Megson, G.
Copyright Year	2005
Description	Author affiliation: Sch. of Syst. Eng., Reading Univ. (Yunsong Wu; Megson, G.)
Abstract	This paper presents a paralleled two-pass hexagonal (TPA) algorithm constituted by linear hashtable motion estimation algorithm (LHMEA) and hexagonal search (HEXBS) for motion estimation. In the TPA, motion vectors (MV) are generated from the first-pass LHMEA and are used as predictors for second-pass HEXBS motion estimation, which only searches a small number of macroblocks (MBs). We introduced hashtable into video processing and completed parallel implementation. We propose and evaluate parallel implementations of the LHMEA of TPA on clusters of workstations for real time video compression. It discusses how parallel video coding on load balanced multiprocessor systems can help, especially on motion estimation. The effect of load balancing for improved performance is discussed. The performance of the algorithm is evaluated by using standard video sequences and the results are compared to current algorithms
Starting Page	6
Ending Page	456
File Size	666121
Page Count	451
File Format	PDF
ISBN	0769524869
DOI	10.1109/HPCASIA.2005.72
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-11-30
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Motion estimation Video compression Vectors Workstations Video coding Multiprocessing systems Load management Clustering algorithms Video sequences Parallel programming
Content Type	Text
Resource Type	Article

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