N. Ancona and T. Poggio, Optical flow from 1D correlation: Application to a simple time-to-crash detector, 1993 (4th) International Conference on Computer Vision, pp.131-146, 1995.
DOI : 10.1109/ICCV.1993.378218

W. Enkelmann, Obstacle detection by evaluation of optical flow fields from image sequences, Image and Vision Computing, vol.9, issue.3, pp.160-168, 1991.
DOI : 10.1016/0262-8856(91)90010-M

J. Langheim, Sensing of car environment at low speed driving, 7th World Congress on Intelligent Transport Systems, 2000.

W. Krüger, Robust real-time ground plane motion compensation from a moving vehicle, Machine Vision and Applications, vol.11, issue.4, pp.203-212, 1999.
DOI : 10.1007/s001380050103

F. Meyer and P. Bouthemy, Estimation of time-to-collision maps from first order motion models and normal flows, [1992] Proceedings. 11th IAPR International Conference on Pattern Recognition, pp.78-82, 1992.
DOI : 10.1109/ICPR.1992.201512

J. Odobez and P. Bouthemy, Robust Multiresolution Estimation of Parametric Motion Models, Journal of Visual Communication and Image Representation, vol.6, issue.4, pp.348-365, 1995.
DOI : 10.1006/jvci.1995.1029

J. Santos-victor and G. Sandini, Uncalibrated obstacle detection using normal flow. Machine Vision and Application, pp.130-137, 1996.