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Author Chew, N.F.F. ♦ Badruddin, N.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2006
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Motion estimation ♦ Video compression ♦ Video sequences ♦ IEC standards ♦ ISO standards ♦ Automatic voltage control ♦ Streaming media ♦ Satellite broadcasting ♦ Degradation ♦ PSNR
Abstract Motion estimation (ME) is the exploitation of similarities between adjacent frames in a video sequences, and is an essential part of the H.264 and other video compression standards. However, it introduces an increase of computation complexity resulting in longer execution time. In this paper, the search range for block-matching ME is made adaptive, based on the motion vectors present in preceding frames. The proposed algorithm determines the amount of motion in past frames and classifies the video sequence as having low, medium or high motion. This classification and the direction of the motion vectors, are used to dynamically adjust the search window size and general orientation. Simulation results show that execution time could be reduced by 42%-60% with a small degradation in PSNR value, to that of non-adaptive ME
Description Author affiliation: Dept. of Electr. & Electron. Eng., Univ. Teknologi PETRONAS, Perak (Chew, N.F.F.; Badruddin, N.)
ISBN 1424405483
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2006-11-14
Publisher Place China
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 3.62 MB
Page Count 4
Starting Page 1
Ending Page 4


Source: IEEE Xplore Digital Library