MANAGEMENT SYSTEM OF DISPLACEMENT MEASUREMENT OF EXCAVATED LAND OR MOUNTAIN

摘要

PURPOSE: To surely prevent a disaster by a method wherein displacement of a land or a mountain is automatically measured and managed at a prescribed time interval, then collapse thereof is predicted previously. ;CONSTITUTION: A post provided on the ground such as a cut face of slope 2 where displacement can easily occur is imaged by a plurality of CCD cameras 8 which are fixed to arbitrary positions and the images are inputted to a processor 11 such as a personal computer. Imaging operations of abstracting of a shape, abstracting of a color and degenerating thereof are subjected to the inputted image so that a gravity of an indicator 7 of the post 6 to be measured is abstracted. Three dimensional coordinates of the indication point is abstracted based on the abstracted gravity point of the indicator 7 by utilizing a stereo image measuring method.;COPYRIGHT: (C)1996,JPO