Shape similarity comparison of 3D models using alpha shapes
| Autor: | Ryutarou Ohbuchi, Tsuyoshi Takei |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
business.industry
Multiresolution analysis ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Solid modelling 3d model Pattern recognition 3d shapes Computer Science::Computer Vision and Pattern Recognition Active shape model Artificial intelligence Geometric modeling business ComputingMethodologies_COMPUTERGRAPHICS Alpha shape Mathematics Shape analysis (digital geometry) |
| Zdroj: | Pacific Conference on Computer Graphics and Applications |
| DOI: | 10.1109/pccga.2003.1238271 |
| Popis: | As the number of in-house and public-domain 3D shape models increase, importance of shape-similarity based search and retrieval for 3D shapes models has increased rapidly. In this paper, we describe our preliminary findings in applying a multiresolution analysis technique to the task of shape similarity comparison of polygon soup models. We used the 3D alpha shapes algorithm to create a multiresolution hierarchy of shapes from the given 3D models. We then applied a (single resolution) shape descriptor to each of the models at multiple resolution levels to derive a multiresolution shape descriptor. According to our evaluation experiments, the retrieval performance of our resolution descriptor outperformed its single resolution counterpart, proving the effectiveness of the basic approach. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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