Sciweavers

Share
3DIM
2005
IEEE

Efficient Photometric Stereo Technique for Three-Dimensional Surfaces with Unknown BRDF

12 years 7 months ago
Efficient Photometric Stereo Technique for Three-Dimensional Surfaces with Unknown BRDF
The present paper focuses on efficient inverse rendering using a Photometric Stereo technique for realistic surfaces. The technique primarily assumes the Lambertian reflection model only. For non-Lambertian surfaces, application of the technique to real surfaces in order to estimate 3-D shape and spatially varying reflectance from sparse images remains difficult. In the present paper, we propose a new Photometric Stereo technique by which to efficiently recover a full surface model, starting from a small set of photographs. The proposed technique allows diffuse albedo to vary arbitrarily over surfaces while non-diffuse characteristics remain constant for a material. Specifically, the basic approach is to first recover the specular reflectance parameters of the surfaces by a novel optimization procedure. These parameters are then used to estimate the diffuse reflectance and surface normal for each point. As a result, a lighting-independent model of the geometry and reflectance properti...
Li Shen, Takashi Machida, Haruo Takemura
Added 24 Jun 2010
Updated 24 Jun 2010
Type Conference
Year 2005
Where 3DIM
Authors Li Shen, Takashi Machida, Haruo Takemura
Comments (0)
books