Feng Lu, Yasuyuki Matsushita, Imari Sato, Takahiro Okabe, Yoichi Sato. From Intensity Profile to Surface Normal: Photometric Stereo for Unknown Light Sources and Isotropic Reflectances. IEEE Trans. Pattern Anal. Mach. Intell., 37(10):1999-2012, 2015. [doi]
Abstract is missing.