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Performance study of gradient correlation for sub-pixel motion estimation in the frequency domain

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2 Author(s)
Argyriou, V. ; Centre for Vision, Univ. of Surrey, Guildford, UK ; Vlachos, T.

The authors present a performance study of gradient correlation in the context of the estimation of interframe motion in video sequences. The method is based on the maximisation of the spatial gradient cross-correlation function, which is computed in the frequency domain and therefore can be implemented by fast transformation algorithms. Enhancements to the baseline gradient-correlation algorithm are presented which further improve performance, especially in the presence of noise. A comparative performance study is also presented, which demonstrates that the proposed method outperforms state-of-the-art methods in frequency-domain motion estimation, in the shape of phase correlation, in terms of sub-pixel accuracy for a range of test material and motion scenarios.

Published in:

Vision, Image and Signal Processing, IEE Proceedings -  (Volume:152 ,  Issue: 1 )

Date of Publication:

28 Feb. 2005

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