The 4-source photometric stereo technique for three-dimensional surfaces in the presence of highlights and shadows

We present an algorithm for separating the local gradient information and Lambertian color by using 4-source color photometric stereo in the presence of highlights and shadows. We assume that the surface reflectance can be approximated by the sum of a Lambertian and a specular component. The convent...

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Bibliographic Details
Published in:IEEE transactions on pattern analysis and machine intelligence 2003-10, Vol.25 (10), p.1239-1252
Main Authors: Barsky, S., Petrou, M.
Format: Article
Language:English
Subjects:
Approximation
Cameras
Color
Equations
Global Positioning System
Gray-scale
Intelligence
Lighting
Pattern analysis
Photometry
Reflectivity
Shadows
Spectra
Surface reconstruction
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Summary:We present an algorithm for separating the local gradient information and Lambertian color by using 4-source color photometric stereo in the presence of highlights and shadows. We assume that the surface reflectance can be approximated by the sum of a Lambertian and a specular component. The conventional photometric method is generalized for color images. Shadows and highlights in the input images are detected using either spectral or directional cues and excluded from the recovery process, thus giving more reliable estimates of local surface parameters.
ISSN:0162-8828
1939-3539
DOI:10.1109/TPAMI.2003.1233898