The use of separated reflection components in estimating geometrical parameters of curved surface elements

Author

Glas, J.C. ; van der Heijden, F.

Author_Institution

Dept. of Electr. Eng., Twente Univ., Enschede, Netherlands

fYear

1995

fDate

4-6 Jul 1995

Firstpage

340

Lastpage

344

Abstract

Iterative least-squares estimation, requires accurate reflectance models to retrieve geometrical parameters of curved surface elements from an image projection. We investigate the use of separating the diffuse (body) reflection from the specular (surface) reflection being responsible for image highlights. Experiments show that the (smooth) diffuse component yields the best convergence properties, while the (sharp) specular component can contribute to the improvement of the noise insensitivity

Keywords

Gaussian noise; convergence of numerical methods; image processing; inverse problems; iterative methods; least squares approximations; parameter estimation; reflectivity; Gaussian noise; convergence properties; curved surface elements; diffuse component; experiments; geometrical parameters estimation; image highlights; image projection; iterative least-squares estimation; noise insensitivity; nonlinear inverse problem; reflectance models; separated reflection components; specular component; specular reflection; surface reflection;

fLanguage

English

Publisher

iet

Conference_Titel

Image Processing and its Applications, 1995., Fifth International Conference on

Conference_Location

Edinburgh

Print_ISBN

0-85296-642-3

Type

conf

DOI

10.1049/cp:19950677

Filename

465535