Method and system for calculating spatial coordinates of region of interest, and non-transitory computer-readable recording medium

A system for calculating a spatial coordinate point of a region of interest, the system comprising:

• an information acquisition unit configured to acquire information on an in-image coordinate point of a region of interest contained in each of a plurality of images respectively photographed by a plurality of image modules;
• and
• a spatial coordinate calculation unit configured to specify, with reference to information on a position where at least one of the plurality of image modules is installed and information on an in-image coordinate point of a target region of interest contained in an image photographed by the at least one image module, a candidate figure containing a position where the target region of interest is located in a reference space, and to specify the position where the target region of interest is located in the reference space, with reference to a positional relationship between a first candidate figure of the target region of interest corresponding to a first image module and a second candidate figure of the target region of interest corresponding to a second image module.