Patent ID: 6304669
Filing Date: 2001-10-16
Classification: G01C

Abstract:
A photogrammetric measurement system for producing a survey map based on a set of photographed pictures obtained at two different photographing positions, each of said photographed pictures including at least one continuous line image and at least three conspicuous point images off said continuous line image, at least one of said conspicuous point images and remaining conspicuous point images being placed at opposing sides of said continuous line image, said photogrammetric measurement system comprising:a display unit that displays said set of photographed pictures as a first photographed picture and a second photographed picture;a first line-producing system that produces a first set of line images between said conspicuous point images on said first photographed picture such that said first set of line images intersect said continuous line image so as to generate intersecting point images;a second line-producing system that produces a second set of line images between said conspicuous point images on said second photographed picture such that said second set of line images intersect said continuous line image so as to generate intersecting point images;a designating system that designates a set of corresponding intersecting point images on said first and second pictures;an intersection-point-image producing system that produces intersecting points on said survey map based on said designated corresponding intersecting point images; anda drawing system that draws a line, connecting said produced intersecting points, on said survey map.