Optical flow from 1-D correlation: Application to a simple time-to-crash detector.

Nicola Ancona Tomaso Poggio Optical flow from 1-D correlation: Application to a simple time-to-crash detector. 131-146 1995 14 International Journal of Computer Vision 2 http://dx.doi.org/10.1007/BF01418979 db/journals/ijcv/ijcv14.html#AnconaP95