TY - CONF AU - H Liu AU - Tsai Hong AU - Martin Herman AU - Rama Chellappa C2 - Proceedings of the 13th International Conference on Pattern Recognition - Computer Vision Track, Vienna, 1, AU DA - 1996-08-01 00:08:00 LA - en PB - Proceedings of the 13th International Conference on Pattern Recognition - Computer Vision Track, Vienna, 1, AU PY - 1996 TI - Image Gradient Evolution-A Visual Cue for Collision Avoidance UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=820560 ER -