Graduate Thesis Or Dissertation
 

Region based image matching for 3D object recognition

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/x059cc634

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  • 3D object recognition is a very difficult and important problem in computer vision, arising in a wide range of applications. Typically in 3D object recognition, interest points are extracted from images and then matched. A shortcoming of this approach is that points only carry local visual information. Therefore, there could be many similar interest points, and these similar points could confuse the matching algorithm. In this thesis, we focus on region-based image matching for 3D object recognition. The main steps that we take are: 1) Extract regions from the image segmentations 2) Represent the objects with the aspect graph of regions 3) Match the given images based on region properties and special layout of regions. Our experiments on a challenging dataset show that we are able to match regions of the objects under 3D transforms. Our main contribution is that while traditional approaches concentrate on matching points, we focus on matching regions of objects. We are the first to show that matching segments of these challenging images is possible under 3D transforms.
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