47 search results - page 5 / 10 » Image Invariants for Smooth Reflective Surfaces |
CVPR
2007
IEEE
14 years 9 months ago
2007
IEEE
A set of images of a Lambertian surface under varying lighting directions defines its shape up to a three-parameter Generalized Bas-Relief (GBR) ambiguity. In this paper, we exami...
Publication
We propose to combine a triangular element surface model with a linearized reflectance map to formulate the shape-from-shading problem. The main idea is to approximate a smooth sur...
3DPVT
2004
IEEE
13 years 11 months ago
2004
IEEE
Helmholtz Stereopsis (HS) has recently been explored as a promising technique for capturing shape of objects with unknown reflectance. So far, it has been widely applied to object...
PAMI
2007
13 years 7 months ago
2007
—This paper presents a novel method for 3D surface reconstruction that uses polarization and shading information from two views. The method relies on the polarization data acquir...
ICPR
2006
IEEE
14 years 8 months ago
2006
IEEE
As camera resolution increases, high-speed non-contact text capture through a digital camera is opening up a new channel for document capture and understanding. Unfortunately, per...