THREE-DIMENSIONAL MODEL GENERATION METHOD AND THREE-DIMENSIONAL MODEL GENERATION DEVICE

A three-dimensional model generation method includes: detecting a first line from each of a plurality of images of a target area shot to detect a plurality of first lines, the plurality of images being shot from a plurality of viewpoints (S121); excluding, from the plurality of first lines detected, a second line that reaches an edge of an image among the plurality of images (S122); and generating a line segment model which is a three-dimensional model of the target area represented by lines, using a plurality of line segments which are the plurality of first lines from which the second line is excluded (S123). For example, in the excluding of the second line, among the plurality of first lines, the three-dimensional model generation method segments a third line that reaches the edge of the image into the second line that reaches the edge of the image and a line segment that does not reach the edge of the image, and the second line may be excluded from the plurality of first lines.