FEATURE-POINT TRACKING BASED TIME-TO-CONTACT ESTIMATION FOR MOVING OBJECTS
基于特征点跟踪的运动目标接触时间估计方法

Time to contact (TTC) estimation problem between moving object and static observer was dealt with. A feature line based estimation scheme was proposed. And a TTC estimation system based on feature point tracking was presented. In addition, the feature point selection method, moving objects extraction, and feature point tracking scheme were given in detail. The experiments of TTC estimation for three sets of the TTC labeled image sequences were done, and the results are satisfactory.