A Practical Method for Estimation of Point Light-Sources | Zendy

M. Weber | Zendy; Roberto Cipolla | Zendy

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A Practical Method for Estimation of Point Light-Sources

Author(s) -

M. Weber,

Roberto Cipolla

Publication year - 2001

Publication title -

citeseer x (the pennsylvania state university)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.5244/c.15.49

Subject(s) - light source , computer science , shading , point (geometry) , point source , object (grammar) , computer vision , artificial intelligence , algorithm , optics , geometry , mathematics , computer graphics (images) , physics

We introduce a general model for point light-sources and show how the parameters of a source at finite distance can be estimated by shading on an object with known geometry and Lambertian reflectance. The parameters we estimate include not only the direction but also the location of the source. Furthermore, we argue that the system introduced here can be used in arbitrarily complex background illumination, provided one can switch on and off the light-source that is to be estimated.

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