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An affine symmetric image model and its applications
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Park, Heechan, Martin, Graham R. and Bhalerao, Abhir. (2010) An affine symmetric image model and its applications. IEEE Transactions on Image Processing, Vol.19 (No.7). pp. 1695-1705. ISSN 1057-7149
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Official URL: http://dx.doi.org/10.1109/TIP.2010.2045692
Abstract
Natural images contain considerable redundancy, some of which is successfully captured using recently developed directional wavelets. In this paper, an affine symmetric image model is considered. It provides a flexible scheme to exploit geometric redundancy. A patch of texture from an image is rotated, scaled and sheared to approximate other similar parts in the image, revealing the self-similarity relation. The general scheme is derived as follows. A texture model is required that identifies structural patterns. Then the affine symmetry is exploited between structural textures at a local level, the objective being to find the minimum residual error by estimating the affine transform relating two patches of texture. Having developed a local model, the methodology is extended to the whole image to estimate the global affine relation. This global model is further developed in a multiresolution framework for multiscale analysis, by which the self similarity of the image is exploited across space and scale. The multiresolution model can be applied to a series of practical problems. Experimental evaluation demonstrates the effectiveness of the approach in affine invariant texture segmentation and image approximation.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Science > Computer Science |
| Library of Congress Subject Headings (LCSH): | Image processing |
| Journal or Publication Title: | IEEE Transactions on Image Processing |
| Publisher: | IEEE |
| ISSN: | 1057-7149 |
| Date: | July 2010 |
| Volume: | Vol.19 |
| Number: | No.7 |
| Number of Pages: | 11 |
| Page Range: | pp. 1695-1705 |
| Identification Number: | 10.1109/TIP.2010.2045692 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| URI: | http://wrap.warwick.ac.uk/id/eprint/5688 |
Data sourced from Thomson Reuters' Web of Knowledge
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