Discussion Of 'video-capture-based Approach To Extract Multiple Vehicular Trajectory Data For Traffic Modeling' By Heng Wei, Chuen Feng, Eric Meyer, And Joe Lee

摘要

The paper proposes a methodology to obtain vehicle trajectory data from videos; however, the accuracy may be improved using both of the following: another technique for coordinate conversion based on homologic transformations, and linear regression for speed and acceleration of calculation. Some comments on precision differences and sampling intervals are included in this discussion.