Measurement of Surface Shape of Transparent Objects
Based on Polarization and Geometrical Analysis
Daisuke Miyazaki Masataka Kagesawa Katsushi Ikeuchi
The correspondence between the degree of polarization and the surface normal is not one to one; thus, to obtain the correct surface normal, we have to solve this ambiguity problem. The proposed method solves the ambiguity by comparing two sets of data, one of which is obtained by observing the object as it is, while the other is obtained by observing the object tilted in a small angle. We indicated the relationship between the geometrical property of the object surface and the degree of polarization, and proposed a method to match two sets of polarization data at identical points on the object surface.
Publications
1. Daisuke Miyazaki, Katsushi Ikeuchi, gMeasurement of Surface Shape of Transparent Objects Based on Polarization and Geometrical Analysis,h in Proc. of Meeting on Image Recognition and Understanding 2002, Jul., 2002, to be appeared (in Japanese).2. Daisuke Miyazaki, gMeasuring Surface Shape of Transparent Objects Based on the Analysis of Polarization, Thermal Radiation and Geometrical Property,h Master Thesis, The University of Tokyo, Feb., 2002.
3. Daisuke Miyazaki, Megumi Saito, Yoichi Sato, Katsushi Ikeuchi, gShape Measurement of Transparent Objects using Polarization and Geometrical Characteristics,h IPSJ SIG Notes: Computer Vision and Image Media, 2000-CVIM-123, pp.33-42, Sep., 2000 (in Japanese).
