[Wolff. "Shape Understanding from Lambertian Photometric Flow Fields." IEEE/CVF Conference on Computer Vision and Pattern Recognition, 1989.](https://mlanthology.org/cvpr/1989/wolff1989cvpr-shape/) doi:10.1109/CVPR.1989.37827
@inproceedings{wolff1989cvpr-shape,
title = {{Shape Understanding from Lambertian Photometric Flow Fields}},
author = {Wolff, Lawrence B.},
booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition},
year = {1989},
pages = {46-52},
doi = {10.1109/CVPR.1989.37827},
url = {https://mlanthology.org/cvpr/1989/wolff1989cvpr-shape/}
}