THREE-DIMENSIONAL DATA CREATING METHOD AND THREE-DIMENSIONAL DATA CREATING DEVICE

The invention provides a three-dimensional data preparing method, using image pickup units 8a and 8b to take an image of scenery in the surroundings and to acquire digital image data, comprising a step of continuously taking images of scenery in the surroundings by the image pickup unit while moving, a step of acquiring the images taken at predetermined time interval as images for measurement, a step of extracting a landmark from the image for measurement through pattern recognition by using the landmark as a template, a step of carrying out a matching of two adjacent images for measurement as time passes, and a step of obtaining three-dimensional coordinates of a point to take the image for measurement based on three-dimensional coordinates of a landmark of the image for measurement where three-dimensional coordinates of the landmark included at least in the first one image for measurement is already known.