Mizuno et al. 1996 : This paper presents the improvement of robustness of the vision system for lane mark detection using the wide dynamic range vision sensor. The performance of the lane mark detection was evaluated by experiments for the road scenes such as a tunnel exit or bridge crossing road, in comparison with the vision system using a conventional TV camera. A conventional edge-based image recognition technique was used for lane mark detection. The experimental results have confirmed the robustness of the vision system with wide dynamic range vision sensor.