The absolute conic is the key for recovering the Euclidean structure in 3-D space. The image of the absolute conic can be parametrized by the set of three vanishing points corresponding to orthogonal directions in space with two independent additional factors. Whereas a single plane to image homography only allows the image to inherit two vanishing points and one of these factors, we describe a...

This paper presents a vehicle occlusion identification system based on the perceptive characters of a roadway. To tracking the vehicles, two stages are devised, initial parameter setting stage and occlusion handling stage. In the initial stage, a background extracting method is adopted to obtain the first clean background. Then, a road detection algorithm is used for finding the vanishing point...

Under poor weather conditions (rain, fog, etc.), both the contrast and color of an image will be degraded. To reverse these effects, spatially adaptive algorithms have previously been developed to improve images under these conditions. Due to the scattering of light, the degradations of an image will be proportional to the distance from the point where the image was taken -this requires de-weat...