@inproceedings{ijcai1987p150,
  title     = {An Optimal Scale for Edge Detection},
  author    = {Geiger, Davi and Poggio, Tomaso A.},
  booktitle = {Proceedings of the Tenth International Joint Conference on
               Artificial Intelligence, {IJCAI-87}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {John McDermott},
  pages     = {745--747},
  year      = {1987},
  note      = {Perception},
  url       = {https://ijcai.org/proceedings/1987/150},
}