35 search results - page 4 / 7 » Paper Surface Topography Using Three-light Photometric Stere... |
ICCV
2003
IEEE
14 years 7 months ago
2003
IEEE
Under the Lambertian reflectance model, uncalibrated photometric stereo with unknown light sources is inherently ambiguous. In this paper, we consider the use of a more general re...
ECCV
2006
Springer
14 years 7 months ago
2006
Springer
Abstract. We formulate a robust method using Expectation Maximization (EM) to address the problem of dense photometric stereo. Previous approaches using Markov Random Fields (MRF) ...
ECCV
2004
Springer
14 years 7 months ago
2004
Springer
Photometric stereo algorithms use a Lambertian reflectance model with a varying albedo field and involve the appearances of only one object. This paper extends photometric stereo a...
MVA
1994
13 years 7 months ago
1994
The idea of photometric stereo is to serially vary the direction of incident illumination on the state of the holded view point, but it can locally reconstruct only the front surf...
ECCV
2008
Springer
14 years 7 months ago
2008
Springer
Shadows are one of the most significant difficulties of the photometric stereo method. When four or more images are available, local surface orientation is overdetermined and the s...