A new method of estimating shape from shading by using a constraint at zero-crossings of image brightness

An iterative method is proposed for estimating shape from shading using a constraint of surface orientation at the zero-crossings of the image brightness. This method can be applied to objects with concave surfaces and one can obtain several different 3D shapes from the same shading information. The...

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Bibliographic Details
Published inPattern Recognition, 9th International Conference on, 1988: Proceedings pp. 666 - 668 vol.2
Main Authors Atsuta, K., Sangworasil, M., Kondo, S.
Format Conference Proceeding
LanguageEnglish
Japanese
Published IEEE Comput. Soc. Press 06.01.2003
Subjects
Additive noise
Boundary conditions
Brightness
Constraint theory
Equations
Image reconstruction
Iterative methods
Reflectivity
Shape
Surface reconstruction
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ISBN9780818608780
0818608781
DOI10.1109/ICPR.1988.28322

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Summary:An iterative method is proposed for estimating shape from shading using a constraint of surface orientation at the zero-crossings of the image brightness. This method can be applied to objects with concave surfaces and one can obtain several different 3D shapes from the same shading information. The Del /sup 2/G filter (a Gaussian operator) is used to detect the zero-crossings of the image brightness, which given information about curvature change of the surface.< >
ISBN:9780818608780
0818608781
DOI:10.1109/ICPR.1988.28322