A predictive direction guided fast motion estimation algorithm

Authors:
Cheng-Dong Shen;Tie-Jun Li;Si-Kun Li
Affiliations:
Office 621, School of Computer Science, National University of Defense Technology, ChangSha, China;Office 621, School of Computer Science, National University of Defense Technology, ChangSha, China;Office 621, School of Computer Science, National University of Defense Technology, ChangSha, China
Venue:
CAIP'05 Proceedings of the 11th international conference on Computer Analysis of Images and Patterns
Year:
2005

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Abstract

A set of predictive-direction-oriented quadrangle search patterns is proposed in this paper. Based on these patterns, a new fast motion estimation algorithm is developed. In this new algorithm, the search process is guided by the predictive direction and adaptively selects the appropriate search pattern from predictive-direction-oriented quadrangle search patterns, thus significantly reduces the number of search steps and search points of every search step. Simulation results demonstrate the effectiveness of this algorithm by considerably reducing encoding complexity while incurring little if any loss in quality.