Abstract
We must always measure a distance from the own vehicle to the front one to prevent the collision accident. In this paper we described a new technique for measuring the distance using stereoscopic images. A vehicle can be recognized as a set of object points that are same distance from the stereo cameras. So, disparity map is projected in the depth direction. This map is called "Projetion Disparity Map". In the projection disparity map the disparities of the vehicle are translated into the straight line. So we can detect the front vehicle by extracting the straight line. For verifying this method we it to the stereoscopic images that are acquired on the expressway. And the efficiency was shown by experiments.