| Presentation | 2001/12/13 Estimation of 3-D Shape and Reflectance using Moire System with Multiple Light Sources and Reflection Model Shoichi NAGANUMA, Norio TAGAWA, Akihiro MINAGAWA, Tadashi MORIYA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We consider a method of determining the shape of object and the reflectance of its surface simultaneously using the Moire technique and shape from shading. If the object surface has multiple reflectance, it must be divided into regions of different reflectance. This region division is formulated as simple clustering problem. By applying expectation-maximization(EM)algorithm, shape and reflectance can be estimated, and region division can be performed. However, as the relationship between the position of the light source and the gradient of the object surface gives rise to ambiguities in the reflectance, region division may fail. To solve this problem, we capture multiple Moire images and propose a method of estimation using these images. The usefulness of the proposed method is confirmed by results obtained from simulation and real image experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Shape Reconstruction / Moire Technique / Reflection Model / Reflectance / EM Algorithm |
| Paper # | PRMU2001-169 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2001/12/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation of 3-D Shape and Reflectance using Moire System with Multiple Light Sources and Reflection Model |
| Sub Title (in English) | |
| Keyword(1) | Shape Reconstruction |
| Keyword(2) | Moire Technique |
| Keyword(3) | Reflection Model |
| Keyword(4) | Reflectance |
| Keyword(5) | EM Algorithm |
| 1st Author's Name | Shoichi NAGANUMA |
| 1st Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University() |
| 2nd Author's Name | Norio TAGAWA |
| 2nd Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University |
| 3rd Author's Name | Akihiro MINAGAWA |
| 3rd Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University |
| 4th Author's Name | Tadashi MORIYA |
| 4th Author's Affiliation | Graduate School of Engineering, Tokyo Metropolitan University |
| Date | 2001/12/13 |
| Paper # | PRMU2001-169 |
| Volume (vol) | vol.101 |
| Number (no) | 524 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |