DocumentCode
2480193
Title
A hypergraph-based approach to affine parameters estimation
Author
Buló, S. Rota ; Albarelli, A. ; Torsello, A. ; Pelillo, M.
Author_Institution
Dipt. di Inf., Univ. Ca´´ Foscari di Venezia, Venice
fYear
2008
fDate
8-11 Dec. 2008
Firstpage
1
Lastpage
4
Abstract
A problem commonly encountered in computer vision is the recovery of the transformation parameters between two affinely distorted images. In this paper, we propose a novel feature-based approach that casts the matching problem to the search of a maximum clique over an auxiliary hypergraph. We also introduce a continuous-based characterization of cliques in hypergraphs that allows us to handle the hard combinatorial problem using tools from the continuous domain. Finally, we present experimental result and comparisons with a state-of-the-art algorithm.
Keywords
affine transforms; computer vision; feature extraction; graph theory; image matching; search problems; affinely distorted image; computer vision; feature-based approach; hard combinatorial problem; hypergraph-based approach; matching problem; maximum clique search; state-of-the-art algorithm; transformation parameter estimation; Computer vision; Detectors; Feature extraction; Frequency domain analysis; Image analysis; Image converters; Parameter estimation; Phase detection; Phase estimation; Voting;
fLanguage
English
Publisher
ieee
Conference_Titel
Pattern Recognition, 2008. ICPR 2008. 19th International Conference on
Conference_Location
Tampa, FL
ISSN
1051-4651
Print_ISBN
978-1-4244-2174-9
Electronic_ISBN
1051-4651
Type
conf
DOI
10.1109/ICPR.2008.4761349
Filename
4761349
Link To Document