I. Arief, S. Mccallum, and J. Hardeberg, Realtime estimation of illumination direction for augmented reality on mobile devices, CIC'12

P. Debevec, Rendering synthetic objects into real scenes: Bridging traditional and image-based graphics with global illumination and high dynamic range photography, ICCV'99
DOI : 10.1145/1401132.1401175

A. Panagopoulos, D. Samaras, and N. Paragios, Robust shadow and illumination estimation using a mixture model, 2009 IEEE Conference on Computer Vision and Pattern Recognition
DOI : 10.1109/CVPR.2009.5206665

K. Rohmer, T. Buschel, and W. Grosch, Interactive near-field illumination for photorealistic augmented reality on mobile devices, 2014 IEEE International Symposium on Mixed and Augmented Reality (ISMAR), p.14
DOI : 10.1109/ISMAR.2014.6948406

URL : http://www.rendering.ovgu.de/rendering_media/downloads/publications/distillu_author.pdf

I. Sato, Y. Sato, and K. Ikeuchi, Illumination from shadows, PAMI'02
DOI : 10.1109/TPAMI.2003.1182093

URL : http://research.nii.ac.jp/~imarik/resources/papers/TPAMI-IlluminationFromShadows.pdf

H. Shen and Q. Cai, Simple and efficient method for specularity removal in an image, Applied optics'09
DOI : 10.1364/AO.48.002711