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Block motion estimation using directional adaptive search window with early termination

Chew , N.F.F. and Badruddin, Nasreen and Jeoti, V. (2007) Block motion estimation using directional adaptive search window with early termination. In: 2007 International Conference on Intelligent and Advanced Systems, ICIAS 2007, 25 November 2007 through 28 November 2007, Kuala Lumpur.

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Abstract

Motion estimation (ME) is an important part of H.264 and other video compression standards, which eliminates temporal redundancies at the expense of higher computational complexity. Many adaptive methods have been proposed to reduce the amount of computation involved in ME. In this paper, two improvements are added to the technique using Directional Adaptive Search Window (DASW) method: Directional search process and Early termination. DASW alone can achieve a savings in number of search point computations of between 42% to 60%. By introducing Early Termination(ET) into motion estimation using DASW, the number of computations could be reduced even further since the search process is terminated immediately if the block is considered as a stationary block. However, DASW-ET incurs a slight degradation of less than 1dB, in PSNR performance. ©2007 IEEE.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Composite micromechanics; Computational complexity; Image compression; Windows; Adaptive methods; Adaptive searches; Block motion estimations; Directional searches; Early terminations; Search points; Search processes; Temporal redundancies; Video compression standards; Motion estimation
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments / MOR / COE:Departments > Electrical & Electronic Engineering
ID Code:308
Deposited By: Nasreen Badruddin
Deposited On:04 Mar 2010 00:31
Last Modified:19 Jan 2017 08:27

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