Robust optical flow for Driver Assistance

摘要

Optical flow in Driver Assistance Systems (DAS) must be robust to variations in illumination and handle large disparities in real time. Although a pyramidal variation of Total Variation Regularized L¹ (TV-L¹) optical flow can handle large disparities, TV-L¹ is not adequate for real world DAS since the ambient light changes dynamically in typically encountered scenes. We present a novel improved TV-L¹ with high boost filtering, which by enhancing high frequency components, becomes robust to illumination changes. Experiments show that our method can measure large disparities even under large dynamic illumination variations.