COMPRESSED DOMAIN GLOBAL MOTION ESTIMATION USING THE HELMHOLTZ TRADEOFF ESTIMATOR

被引:5
作者
Tok, Michael [1 ]
Glantz, Alexander [1 ]
Arvanitidou, Marina Georgia [1 ]
Krutz, Andreas [1 ]
Sikora, Thomas [1 ]
机构
[1] Tech Univ Berlin, Commun Syst Grp, Berlin, Germany
来源
2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING | 2010年
关键词
Global Motion Estimation; Helmholtz Tradeoff Estimator; compressed domain; robust regression; ROBUST;
D O I
10.1109/ICIP.2010.5652525
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Several algorithms for global motion estimation in video sequences using pixel- or block-based approaches have been published. Most known pixel-based methods lack in performance while when using block-based algorithms working on motion vectors, robustness to outliers and accuracy is missing. In this paper we present the fundamentals of a significantly improved, robust block-based method for global motion estimation in compressed domain following the generic Helmholtz principle. To this aim, we use motion vector fields as provided by MPEG data streams. Background PSNR values for four motion compensated test sequences show that our new method delivers results comparable to more complex algorithms.
引用
收藏
页码:777 / 780
页数:4
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