| Presentation | 1999/11/18 Geotensity Constraint for 3D Surface Reconstruction under Multiple Light Sources Atsuto Maki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper deals with full reconstruction of the 3D Lambertian surface of an object observed in motion by a single static camera. In principle we search for the depth at each point on the surface of the object that best satisfies the recently proposed Geotensity constraint that governs the relationship between four or more images of a moving object. While it has been shown that the constraint is more valid under object motion than the conventional one of constant brightness, the availability was limited largely to the case of a single point light source. The thrust of this paper is to extend the Geotensity constraint to the case of multiple point light sources. We first show that it is mathematically possible to identify multiple illumination subspaces for an arbitrary unknown number of light sources. We then propose a new technique to effectively carry out the separation of the subspaces by introducing the surface interaction matrix. Finally, we propose a framework for surface recovery taking the multiple illumination subspaces into account. The theoretical propositions are investigated through exeperiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Geotensity / structure-from-motion / Surface reconstruction / lighting / illumination subspace |
| Paper # | PRMU99-127 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 1999/11/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | Geotensity Constraint for 3D Surface Reconstruction under Multiple Light Sources |
| Sub Title (in English) | |
| Keyword(1) | Geotensity |
| Keyword(2) | structure-from-motion |
| Keyword(3) | Surface reconstruction |
| Keyword(4) | lighting |
| Keyword(5) | illumination subspace |
| 1st Author's Name | Atsuto Maki |
| 1st Author's Affiliation | TOSHIBA Corporation, Kansai Research Center() |
| Date | 1999/11/18 |
| Paper # | PRMU99-127 |
| Volume (vol) | vol.99 |
| Number (no) | 448 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |