학술논문

Active Lighting Applied to Shape from Polarization
Document Type
Conference
Source
2006 International Conference on Image Processing Image Processing, 2006 IEEE International Conference on. :2181-2184 Oct, 2006
Subject
Signal Processing and Analysis
Computing and Processing
Shape
Optical polarization
Surface reconstruction
Refractive index
Image reconstruction
Lighting control
Dielectrics
Azimuth
Surface waves
Optical propagation
Three-dimensional vision
polarization
shape control
Language
ISSN
1522-4880
2381-8549
Abstract
We present a new way of solving the ambiguity that appears in the shape from polarization method. This ambiguity, concerning the normals orientation of the surface, was previously solved thanks to a propagation algorithm. In this paper, the ambiguity is solved thanks to a special active lighting. This method is less time computing and is more robust to noise acquisition. We first demonstrate how to compute the right normals on the whole surface. Then, we show an application on the 3D reconstruction of a specular metallic object made by stamping and polishing.