J. D. Durou, M. Falcone, and M. Sagona, Numerical methods for shape-from-shading: A new survey with benchmarks, Comput. Vis. Image Underst, vol.109, pp.22-43, 2008.

B. K. Horn and M. J. Brooks, The variational approach to shape from shading. Computer Vision, Graphics, and Image Processing, vol.33, pp.174-208, 1986.

P. L. Lions, E. Rouy, and A. Tourin, Shape-from-shading, viscosity solutions and edges, Numerische Mathematik, vol.64, pp.323-353, 1993.

Y. Han, J. Y. Lee, and I. S. Kweon, High quality shape from a single RGB-D image under uncalibrated natural illumination, Proc. ICCV, 2013.

R. Basri and D. P. Jacobs, Lambertian reflectances and linear subspaces, IEEE Trans. Pattern Anal. Mach. Intell, vol.25, pp.218-233, 2003.

Y. Quéau, R. Mecca, and J. D. Durou, Unbiased Photometric Stereo for Colored Surfaces: A Variational Approach, Proc. CVPR, 2016.

M. K. Johnson and E. H. Adelson, Shape estimation in natural illumination, Proc. CVPR, 2011.

R. Huang and W. A. Smith, Shape-from-shading under complex natural illumination, Proc. ICIP, 2011.

R. Or-el, G. Rosman, A. Wetzler, R. Kimmel, and A. Bruckstein, RGBD-Fusion: Real-Time High Precision Depth Recovery, Proc. CVPR, 2015.

D. Frolova, D. Simakov, and R. Basri, Accuracy of spherical harmonic approximations for images of Lambertian objects under far and near lighting, Proc. ECCV, 2004.

J. T. Barron and J. Malik, Shape, illumination, and reflectance from shading, IEEE Trans. Pattern Anal. Mach. Intell, vol.37, pp.1670-1687, 2015.

E. Cristiani and M. Falcone, Fast semi-Lagrangian schemes for the eikonal equation and applications, SIAM J. Numer. Anal, vol.45, pp.1979-2011, 2007.

M. Breuß, E. Cristiani, J. D. Durou, M. Falcone, and O. Vogel, Perspective shape from shading: Ambiguity analysis and numerical approximations, SIAM J. Imaging Sci, vol.5, pp.311-342, 2012.

Y. Quéau, J. D. Durou, and J. F. Aujol, Normal Integration: A Survey, J. Math. Imaging Vision, 2017.

G. Graber, J. Balzer, S. Soatto, and T. Pock, Efficient minimal-surface regularization of perspective depth maps in variational stereo, Proc. CVPR, 2015.

R. Glowinski and A. Marroco, Sur l'approximation, parélémentsparéléments finis d'ordre un, et la résolution, par pénalisation-dualité d'une classe deprobì emes de Dirichlet non linéaires. Revue française d'automatique, informatique, recherche opérationnelle, Analyse numérique, vol.9, pp.41-76, 1975.

S. Boyd, N. Parikh, E. Chu, B. Peleato, and J. Eckstein, Distributed Optimization and Statistical Learning via the Alternating Direction Method of Multipliers, Founds. Trends in Mach. Learn, vol.3, pp.1-122, 2011.

G. Li and T. K. Pong, Global convergence of splitting methods for nonconvex composite optimization, SIAM J. Optimiz, vol.25, pp.2434-2460, 2015.

M. Hong, Z. Q. Luo, and M. Razaviyayn, Convergence analysis of alternating direction method of multipliers for a family of nonconvex problems, SIAM J. Optimiz, vol.26, pp.337-364, 2016.

M. Zollhöfer, A. Dai, M. Innman, C. Wu, M. Stamminger et al., Shading-based refinement on volumetric signed distance functions, ACM Trans. Graph, vol.34, p.14, 2015.

M. Jancosek and T. Pajdla, Multi-view reconstruction preserving weakly-supported surfaces, Proc. CVPR, 2011.