@conference{840976,
  author = {H Liu and Tsai Hong and Martin Herman and Rama Chellappa},
  title = {Image Gradient Evolution-A Visual Cue for Collision Avoidance},
  year = {1996},
  month = {1996-08-01 00:08:00},
  publisher = {Proceedings of the 13th International Conference on Pattern Recognition - Computer Vision Track, Vienna, 1, AU},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=820560},
  language = {en},
}