Title: Pel-recursive motion estimation using the expectation-maximization technique und spatial adaption
Authors: Estrela, Vania
Rivera, Luis A.
Bassani, Marcos H. S.
Citation: WSCG '2004: Short Communications: the 12-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2004, 2.-6. February 2004 Plzeň, p. 47-54.
Issue Date: 2004
Publisher: Václav Skala - UNION Agency
Document type: konferenční příspěvek
URI: http://wscg.zcu.cz/wscg2004/Papers_2004_Short/L05.pdf
ISBN: 80-903100-5-2
Keywords: odhad pohybu;EM algoritmus;pel-rekurzivní pohyb
Keywords in different language: motion estimation;EM algorithm;pel-recursive motion
Abstract: Pel-recursive motion estimation is a well-established approach. However, in the presence of noise, it becomes an ill-posed problem that requires regularization. In this paper, motion vectors are estimated in an iterative fashion by means of the Expectation-Maximization (EM) algorithm and a Gaussian data model. Our proposed algorithm also utilizes the local image properties of the scene to improve the motion vector estimates following a spatially adaptive approach. Numerical experiments are presented that demonstrate the merits of our methods.
Rights: © Václav Skala - UNION Agency
Appears in Collections:WSCG '2004: Short Communications

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