Presentation 1997/12/19
Geotensity: Combining Motion and Lighting for 3D Surface Reconstruction
Atsuto Maki, Mutsumi Watanabe, Charles Wiles,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper is about automatically reconstructing the full 3D surface of an object observed in motion by a single static camera. Image-based techniques for 3D reconstruction using either stereo or structure from motion require multiple images as input and essentially exploit the constraint that each point on the surface of an object has the same intensity when observed in each image. This constraint is often valid for stereo where two images are taking simultaneously so that the lighting of the object is identical in each image. However, when the object, is observed in motion by a static camera, the motion itself has the effect of changing the relative lighting conditions and hence the constant intensity constraint is invalid. In this paper we introduce the geotensity constraint that governs the relationship between four images of a moving object under arbitrary lighting conditions. We show that it is possible in theory to solve for 3D surface structure for the case of a single point light source. The surface of a convex object can be recovered even for the parts without texture.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Geotensity / structure-from-motion / linear image subspaces / surface reconstruction
Paper # PRMU97-190
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Conference Information
Committee PRMU
Conference Date 1997/12/19(1days)
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Place (in English)
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Paper Information
Registration To Pattern Recognition and Media Understanding (PRMU)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Geotensity: Combining Motion and Lighting for 3D Surface Reconstruction
Sub Title (in English)
Keyword(1) Geotensity
Keyword(2) structure-from-motion
Keyword(3) linear image subspaces
Keyword(4) surface reconstruction
1st Author's Name Atsuto Maki
1st Author's Affiliation TOSHIBA Kansai Research Laboratories()
2nd Author's Name Mutsumi Watanabe
2nd Author's Affiliation TOSHIBA Kansai Research Laboratories
3rd Author's Name Charles Wiles
3rd Author's Affiliation Canon Research Centre Europe Ltd
Date 1997/12/19
Paper # PRMU97-190
Volume (vol) vol.97
Number (no) 459
Page pp.pp.-
#Pages 7
Date of Issue