| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate anxiety of electromagnetic interference, and suppress introduction and maintenance cost.SOLUTION: A position measurement system 1 of a movable body comprises: pylons 4a to 4d installed in a construction area 6; an omnidirectional camera 2 mounted on a vibration roller 5; and an arithmetic processing part 3. The arithmetic processing part 3 creates a whole circumference panoramic image from an omnidirectional image imaged by the omnidirectional camera 2, and recognizes the images of the pylons 4a to 4d in the whole circumference panoramic image as position display markers while corresponding the images of the pylons 4a to 4d to the respective pylons. Then the arithmetic processing part 3 determines separation widths L1, L2 in a lateral direction of two position display markers in the whole circumference panoramic image respectively about two sets of position display marker pairs. Anglesθ1,θ2 corresponding to the separation widths L1, L2 are respectively calculated, and on the basis of the calculated anglesθ1,θ2 and plane coordinate positions of the pylons 4a to 4d, plane coordinate positions of the omnidirectional camera 2 and the vibration roller 5, are calculated.</p> |
