| 摘要 |
PROBLEM TO BE SOLVED: To easily measure a tilt of an optical axis line of a photographing device attached to a work machine with respect to the work machine.SOLUTION: As a jig to be set so as to face a photographing device 32, a jig 50 is used that has two photographed parts 70 and 72 to be photographed by the photographing device and also different from each other in a distance from the photographing device, and a reference plane P, in which a tilt with respect to an own plane of a jig axial line Lserving as an axial line connecting these two photographed parts is identified. The jig is set to the photographing device, and the jig is photographed. On the basis of a position relation of each of contour images of the two photographed parts obtained by the photographing, a tilt of the photographing device to a work machine is determined. |
