Joint blind restoration and surface recovery in photometric stereo
JOSA A, Vol. 22, Issue 6, pp. 1066-1076 (2005)
http://dx.doi.org/10.1364/JOSAA.22.001066
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Abstract
We address the problem of simultaneous estimation of scene structure and restoration of images from blurred photometric measurements. In photometric stereo, the structure of an object is determined by using a particular reflectance model (the image irradiance equation) without considering the blurring effect. What we show is that, given arbitrarily blurred observations of a static scene captured with a stationary camera under different illuminant directions, we still can obtain the structure represented by the surface gradients and the albedo and also perform a blind image restoration. The surface gradients and the albedo are modeled as separate Markov random fields, and a suitable regularization scheme is used to estimate the different fields as well as the blur parameter. The results of the experimentations are illustrated with real as well as synthetic images.
© 2005 Optical Society of America
OCIS Codes
(100.0100) Image processing : Image processing
(100.3020) Image processing : Image reconstruction-restoration
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5240) Instrumentation, measurement, and metrology : Photometry
(150.0150) Machine vision : Machine vision
(150.6910) Machine vision : Three-dimensional sensing
Citation
Manjunath V. Joshi and Subhasis Chaudhuri, "Joint blind restoration and surface recovery in photometric stereo," J. Opt. Soc. Am. A 22, 1066-1076 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-6-1066
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