Invention Grant
- Patent Title: System and method to match images using topologically equivalent correspondences
- Patent Title (中): 使用拓扑等效对应来匹配图像的系统和方法
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Application No.: US12321235Application Date: 2009-01-16
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Publication No.: US08401342B2Publication Date: 2013-03-19
- Inventor: Mark A. Ruzon , Donald Tanguay
- Applicant: Mark A. Ruzon , Donald Tanguay
- Applicant Address: US CA Palo Alto
- Assignee: A9.com, Inc.
- Current Assignee: A9.com, Inc.
- Current Assignee Address: US CA Palo Alto
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Main IPC: G06K9/60
- IPC: G06K9/60

Abstract:
A method, system and computer program product for matching images is provided. The images to be matched are represented by feature points and feature vectors and orientations associated with the feature points. First, putative correspondences are determined by using feature vectors. A subset of putative correspondences is selected and the topological equivalence of the subset is determined. The topologically equivalent subset of putative correspondences is used to establish a motion estimation model. An orientation consistency test is performed on the putative correspondences and the corresponding motion estimation transformation that is determined, to avoid an infeasible transformation. A coverage test is performed on the matches that satisfy orientation consistency test. The candidate matches that do not cover a significant portion of one of the images are rejected. The final match images are provided in the order of decreasing matching, in case of multiple images satisfying all the test requirements.
Public/Granted literature
- US20100183229A1 System and method to match images Public/Granted day:2010-07-22
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