Low-complexity global motion estimation from P-frame motion vectors for MPEG-7 applications

A. Smolic, M. Hoeynck, J.-R. Ohm
2000 Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)  
In this contribution, we present an algorithm for lowcomplexity global motion estimation, that works with block-coded video (e.g. MPEG-2). A superimposed global motion model is fitted to decoded P-frame motion vector fields, providing real-time performance. Therefore a robust M-estimator is applied since a lot of outliers have to be expected in the motion vector fields. The algorithm is compared to a state-of-the-art global motion estimator. The main characteristics of the global motion are
more » ... ured accurately in most cases, although estimation may fail. We also report the integration of the estimator into a complete MPEG-7 system for search-and-retrieval of video based on motion characteristics.
doi:10.1109/icip.2000.899352 dblp:conf/icip/SmolicHO00 fatcat:axdl3krdgzar3grmdp3ng4ic3m