Figure 6. The result of road scan lines detection.
B. Forward Vehicle Detection
The architecture of FVD is depicted as Figure 7. Due to calculate the demarcation point between the vehicle and nonvehicle, the vehicle position is used to capture camera grayscale plane and histogram equalization. In this study, we statistics more than road image of 1,000,000 frames with various environments, the gray scale value of vehicle and the road boundaries is between 20 and 70. Therefore, following Eq. (5) to search the minimum value as the threshold value and make binary image by Eq. (6).