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Fast Camera Motion Estimation in MPEG Compressed Domain

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2 Author(s)
Ying Weng ; Y. Weng is -with Digital Media & Systems Research Institute, School of Computing, Informatics & Media, University of Bradford, U.K. (e-mail: y.weng@bradford.ac.uk). ; Jianmin Jiang

In this paper, we propose a new algorithm for fast estimation of camera motion directly in MPEG compressed domain, which starts from an existing and commonly used camera motion model to characterize the relationship between corresponding points of the neighboring frames, and then exploits the MPEG motion estimation and compensation techniques to derive closed-form estimation of all the three camera motion parameters, including pan, tilt, and zoom. The proposed algorithm features in extremely low computing cost and high processing speed with 50% improvement over the representative existing algorithms. Comparative experiments also reveal that the proposed algorithm achieves similar estimation precision for all the three camera motion parameters.

Published in:

Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:PP ,  Issue: 99 )