| 摘要 |
PURPOSE: To make it possible to plot a map readily by displaying a stereo image on a stereography monitor, measuring each reference point with a cursor, performing aerial triangulation, correcting the displacement of each image, monitoring and displaying the image after the displacement correction in the region specified by the cursor, and performing various kinds of measurements. CONSTITUTION: The stereo-photographed aerial photograph including reference points is inputted into a computer 20 by using a scanner 24 and displayed on a stereography monitor 21. A course to be measured is indicated by using a mouse 25, and each reference point is measured. Then, pass points and tie points are set for connecting the photographs. The data are operated in the computer 20, and aerial triangulation is performed. The continued model is formed, and the displacement correction is performed. Then, the measuring methods such as a single object measurement, a vector measurement, a polygon measurement, a volume measurement, a contour measurement and a cross section measurement are selected and performed. Based on the measurement results, the CAD dat and the X-Y plotted data are formed. In this way, the map forming data can be readily formed. |
