DocumentCode :
2179213
Title :
Motion Estimation with Adaptive Regularization and Neighborhood Dependent Constraint
Author :
Nawaz, Muhammad Wasim ; Bouzerdoum, Abdesselam ; Phung, Son Lam
Author_Institution :
ICT Res. Inst., Univ. of Wollongong, Wollongong, NSW, Australia
fYear :
2010
fDate :
1-3 Dec. 2010
Firstpage :
387
Lastpage :
392
Abstract :
Modern variational motion estimation techniques use total variation regularization along with the l1 norm in constant brightness data term. An algorithm based on such homogeneous regularization is unable to preserve sharp edges and leads to increased estimation errors. A better solution is to modify regularizer along strong intensity variations and occluded areas. In addition, using neighborhood information with data constraint can better identify correspondence between image pairs than using only a point wise data constraint. In this work, we present a novel motion estimation method that uses neighborhood dependent data constraint to better characterize local image structure. The method also uses structure adaptive regularization to handle occlusions. The proposed algorithm has been evaluated on Middlebury´s benchmark image sequence dataset and compared to state-of-the-art algorithms. Experiments show that proposed method can give better performance under noisy conditions.
Keywords :
image sequences; motion estimation; adaptive regularization; data constraint; homogeneous regularization; image pairs; image sequence; intensity variation; local image structure; motion estimation; neighborhood dependent constraint; total variation regularization; Adaptive optics; Brightness; Estimation; Image edge detection; Mathematical model; Optical imaging; Video sequences;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Digital Image Computing: Techniques and Applications (DICTA), 2010 International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-8816-2
Electronic_ISBN :
978-0-7695-4271-3
Type :
conf
DOI :
10.1109/DICTA.2010.72
Filename :
5692593
Link To Document :
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