Photometric stereo with only two images: A theoretical study and numerical resolution

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• 作者：Yvain Qué ; au^a ; ^b ; ^{yvain.queau@tum.de} ; Roberto Mecca^c ; ^d ; ¹ ; Jean-Denis Durou^a ; Xavier Descombes^e
• 关键词：3D-reconstruction ; Shape-from-shading ; Photometric stereo ; PDEs ; Numerical analysis ; Optimization ; Graph cut
• 刊名：Image and Vision Computing
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：57
• 期：Complete
• 页码：175-191
• 全文大小：2954 K
• 卷排序：57

文摘

We provide a theoretical study of ambiguities arising in two-image photometric stereo. Disambiguation is formulated as a binary labeling problem, using integrability and a nonstationary Ising model. Resolution is achieved efficiently by resorting to the graph cut algorithm. An application to three-image photometric stereo with shadows is presented.