Publikation: An improvement of rotation invariant 3D shape descriptor based on functions on concentric spheres
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In this paper, we consider 3D-shape descriptors generated by using functions on a sphere. The descriptors are engaged for retrieving polygonal mesh models. Invariance of descriptors with respect to rotation of a model can be achieved either by using the Principle Component Analysis (PCA) or defining features in which the invariance exists. The contribution of the paper is twofold: firstly, we define a new rotation invariant feature vector based on functions on concentric spheres, that outperforms a recently proposed descriptor; secondly, we compare the two approaches for achieving rotation invariance as well as options to use a single function or several functions on concentric spheres to generate feature vectors. We conclude that descriptors, which use the PCA, outperform others, while capturing the internal structure of a 3D-model with functions on concentric spheres can improve retrieval effectiveness.
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VRANIC, Dejan, 2003. An improvement of rotation invariant 3D shape descriptor based on functions on concentric spheres. International Conference on Image Processing. Barcelona, Spain. In: Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429). IEEE, 2003, pp. III-757-60. ISBN 0-7803-7750-8. Available under: doi: 10.1109/ICIP.2003.1247355BibTex
@inproceedings{Vranic2003impro-23121, year={2003}, doi={10.1109/ICIP.2003.1247355}, title={An improvement of rotation invariant 3D shape descriptor based on functions on concentric spheres}, isbn={0-7803-7750-8}, publisher={IEEE}, booktitle={Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429)}, pages={III--757-60}, author={Vranic, Dejan} }
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