APPARATUS AND METHOD FOR THREE-DIMENSIONAL MEASUREMENT IN TUNNEL OR THE LIKE

摘要

PROBLEM TO BE SOLVED: To provide an apparatus and a method for three-dimensional measurement in a tunnel or the like wherein measurement at an unknown position can be simply and easily performed. ;SOLUTION: The apparatus for three-dimensional measurement in a tunnel or the like comprises a recording device for recording three unknown reference marks 8 placed in the longitudinal direction in the tunnel or the like and four measurement marks 9 placed with intervals along the longitudinal direction with respect to the marks 8 for acquiring them as two-dimensional data and an arithmetic processor as a personal computer for calculating the recorded two-dimensional data to obtain three-dimensional coordinates. The method for measurement involves calculating by the arithmetic processor the two-dimensional data obtained by recording by the recording device to obtain the three- dimensional coordinates. Thus, a only the recording device is brought in the tunnel or the like, and after recording, its images are subjected to arithmetic processing by the arithmetic processor installed in an office or the like, thereby, measurement is made simple and easy.;COPYRIGHT: (C)1997,JPO