Person detection system

A person detection method comprising:

• extracting person information representing a person from image information taken with a security camera;
• extracting behavior information representing behavior of the person from the image information and, based on the behavior information, determining a group composed of a plurality of persons and registering group information including the person information;
• identifying a first person from the image information taken with the security camera, based on the extracted person information and the extracted behavior information;
• identifying a second person belonging to a same group as the first person from the image information taken with the security camera, based on the person information of a person identified as the first person and the group information;
• and
• identifying a position of the first person and a position of the second person, based on position information of the security cameras used for taking the image information based on which the first person and the second person have been identified, respectively.

A non-transitory computer-readable storage medium for storing a computer program comprising instructions for causing an information processing device to realize:

• a person extraction unit that extracts person information representing a person from image information taken with a security camera;
• a group determination unit that extracts behavior information representing behavior of the person from the image information and, based on the behavior information, determines a group composed of a plurality of persons and registers group information including the person information;
• a first person identification unit that identifies a first person from the image information taken with the security camera, based on the extracted person information and the extracted behavior information;
• a second person identification unit that identifies a second person belonging to a same group as the first person from the image information taken with the security camera, based on the person information of a person identified as the first person and the group information;
• and
• a position identification unit that identifies a position of the first person and a position of the second person, based on position information of the security cameras used for taking the image information based on which the first person and the second person have been identified, respectively.