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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Pengdong Xiao Barnes, N. Caetano, T. Lieby, P. |
| Copyright Year | 2007 |
| Description | Author affiliation: Australian Nat. Univ., Canberra (Pengdong Xiao; Barnes, N.; Caetano, T.; Lieby, P.) |
| Abstract | Matching and registration of shapes is a key issue in Computer Vision, Pattern Recognition, and Medical Image Analysis. This paper presents a shape representation framework based on Gaussian curvature and Markov random fields (MRFs) for the purpose of shape matching. The method is based on a surface mesh model in $R^{3},$ which is projected into a two-dimensional space and there modeled as an extended boundary closed Markov random field. The surface is homeomorphic to $S^{2}.$ The MRF encodes in the nodes entropy features of the corresponding similarities based on Gaussian curvature, and in the edges the spatial consistency of the meshes. Correspondence between two surface meshes is then established by performing probabilistic inference on the MRF via Gibbs sampling. The technique combines both geometric, topological, and probabilistic information, which can be used to represent shapes in three dimensional space, and can be generalized to higher dimensional spaces. As a result, the representation can be used for shape matching, registration, and statistical shape analysis. |
| Starting Page | 1 |
| Ending Page | 7 |
| File Size | 455204 |
| Page Count | 7 |
| File Format | |
| ISBN | 1424411793 |
| ISSN | 10636919 |
| DOI | 10.1109/CVPR.2007.383359 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-06-17 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Shape Markov random fields Pattern matching Entropy Sampling methods Indexing Image retrieval Biomedical engineering Australia Computer vision |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Vision and Pattern Recognition Software |
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