A contrario patch matching, with an application to keypoint matches validation


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Authors
Von Gioi, RG 
Patraucean, V 
Abstract

We describe a simple metric for image patches similarity, together with a robust criterion for unsupervised patch matching. The gradient orientations at corresponding positions in the two patches are compared and the normalized errors are accumulated. Based on the a contrario framework, the matching criterion validates a match between two patches when this cumulative error is too small to have occurred as the result of an accidental agreement. The method is illustrated in the validation of keypoint matches.

Description
Keywords
patch matching, a contrario validation, false positives
Journal Title
Proceedings - International Conference on Image Processing, ICIP
Conference Name
2015 IEEE International Conference on Image Processing (ICIP)
Journal ISSN
1522-4880
Volume Title
Publisher
IEEE