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| Author(s): |
Paola Tatiana Llerena Valdivia
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Carlos. |
| Institution: | Universidade de São Paulo (USP). Instituto de Ciências Matemáticas e de Computação (ICMC/SB) |
| Defense date: | 2013-11-08 |
| Examining board members: |
Luis Gustavo Nonato;
Ricardo Guerra Marroquim;
Afonso Paiva Neto
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| Advisor: | Luis Gustavo Nonato |
| Abstract | |
In the last years, surface denoising is a subject of intensive research in geometry processing. Most of the recent approaches for mesh denoising use a twostep scheme: normal filtering followed by a point updating step to match the corrected normals. In this work, we propose an adaptation of such two-step approaches for point-based surfaces, exploring three different weight schemes for filtering normals. Moreover, we also investigate three techniques for normal estimation, analyzing the impact of each normal estimation method in the whole point-set smoothing process. Towards a quantitative analysis, in addition to conventional visual comparison, we evaluate the effectiveness of different choices of implementation using two measures, comparing our results against state-of-art point-based denoising techniques. Keywords: surface smoothing; point-based surface; normal estimation; normal filtering. (AU) | |
| FAPESP's process: | 11/04045-3 - Extraction and structuring features in discrete surfaces |
| Grantee: | Paola Tatiana Llerena Valdivia |
| Support Opportunities: | Scholarships in Brazil - Master |