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The variational approach to shape from shading

โœ Scribed by Berthold K.P. Horn; Michael J. Brooks

Publisher
Elsevier Science
Year
1985
Weight
97 KB
Volume
32
Category
Article
ISSN
0734-189X

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โœฆ Synopsis

This paper describes an algorithm for approximating the single scattering model for light diffusion through clouds or haze of constant optical density. The clouds are contained between two single valued surfaces. The algorithm assumes that the sun is directly overhead, but gives convincing pictures for other sun directions. Its efficiency comes from approximating the exponential decay of transmitted light by a quadratic polynomial, and from vectorization on the Cray 1.

The Variational Approach fo Shapejrom Shading. BERTHOLD K. P. HORN AND MICHAEL J. BROOKS.

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