Three-dimensional model generation method and three-dimensional model generation device

A three-dimensional model generation method executed by an information processing device, the three-dimensional model generation method comprising:

• obtaining map information generated by camera calibration executed by controlling one or more cameras to shoot a subject from a plurality of viewpoints, the map information including three-dimensional points each indicating a position on the subject in a three-dimensional space;
• obtaining a first image of the subject shot from a first view point and a second image of the subject shot from a second viewpoint;
• determining a search range in the three-dimensional space, based on the map information, the search range including a first three-dimensional point on the subject, the first three-dimensional point corresponding to a first point in the first image;
• searching for a similar point that is similar to the first point, in a range in the second image which corresponds to the search range;
• and
• generating a three-dimensional model using a search result in the searching.