Hyperpatches for 3D Model Acquisition and Tracking
IEEE Transactions on Pattern Analysis and Machine Intelligence
Geotensity: Combining Motion and Lighting for 3D Surface Reconstruction
International Journal of Computer Vision
Constructing Illumination Image Basis from Object Motion
ECCV '02 Proceedings of the 7th European Conference on Computer Vision-Part III
Geotensity Constraint for 3D Surface Reconstruction under Multiple Light Sources
ECCV '00 Proceedings of the 6th European Conference on Computer Vision-Part I
Development of real-time virtual environment with hierarchical construction
Proceedings of the 6th International Conference on Ubiquitous Information Management and Communication
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This paper is about automatically reconstructing the full 3D surface of an object observed in motion by a single static camera. We introduce the geotensity constraint that governs the relationship between four images of a moving object under fairly general lighting conditions. We show that it is possible in theory to solve for 3D surface structure for both the case of a single point light source and a pair of point light sources and propose that a solution exists for an arbitrary number point light sources. The surface may or may not be textured. We then give an example of automatic surface reconstruction of a face under a point light source. The geotensity constraint provides the theoretical foundation for the full automatic 3D reconstruction of Lambertian objects using a single fixed camera and arbitrary unknown object motion under arbitrary lighting conditions.