@article{Kenji Inose2013, title={Refining Outdoor Photometric Stereo Based on Sky Model}, author={Kenji Inose and Shota Shimizu and Rei Kawakami and Yasuhiro Mukaigawa and Katsushi Ikeuchi}, journal={IPSJ Transactions on Computer Vision and Applications}, volume={5}, number={ }, pages={104-108}, year={2013}, doi={10.2197/ipsjtcva.5.104} }