| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem wherein the parallel condition of the optical axes of the left camera and the right camera of a stereo camera has to be maintained with extremely high accuracy when making object detection to a distant place and the problem wherein a distance to an object at which the object can be detected with sufficient accuracy is limited even when the parallel condition of the optical axes is accurately maintained. SOLUTION: The vehicle detector includes: a stereo image processing means by two cameras; a frame difference extraction means for performing frame difference processing from a plurality of frames for one camera; a background difference extraction means for extracting a difference between a background image to be a reference and a present image; and a vehicle feature image preparation means for turning the logical product of the result of the OR of the image of the frame difference extraction means and the stereo image processing means and the image of the background difference extraction means to a vehicle feature image. COPYRIGHT: (C)2011,JPO&INPIT |
