| 摘要 |
PURPOSE:To enable accurate three-dimensional measurement, by recording a reference mark and a reference point together with a photographed object of measured body on a film or the like. CONSTITUTION:Float signs 24a, 24b are made coincident with a reference point while a stereoscopic image is observed. A digital indicator 31 for a measured value and a microcomputer 32 are reset at zero. The images of the float signs 24a, 24b are then made coincident with one end of a reference mark in the stereoscopic image. After that, the images of the float signs 24a, 24b are made coincident with the other end of the reference mark in the stereoscopic image. As a result, each measured point is determined substantially on the basis of the center of an optical axis. Accurate three-dimensional measurement is thus effected. |
