| 摘要 |
PROBLEM TO BE SOLVED: To provide a track bed shape measurement method capable of being easily executed using a vehicle traveling on a track.SOLUTION: A track bed shape measurement device 100 comprising: a base camera 11; a reference camera 12; a three-axis acceleration sensor 13; and a distance sensor 14, is installed to a vehicle, the vehicle is made to travel on a rail of a track, a track bed of the track is imaged, and shape measurement is performed by a binocular vision stereo method for detecting a cross section of the track bed. In the track bed shape measurement method, two-dimensional image processing for calculating only a desired cross section, by setting a virtual measurement cross section, is executed. The two-dimensional image processing combines a technique for performing projective transformation of an image by homography matrix, and a technique for performing matching of the images of the base camera and reference camera, thereby a calculation amount is significantly reduced, for detecting the cross section of the track bed.SELECTED DRAWING: Figure 1 |
