1. An information processing apparatus comprising: a setting unit that sets a position of a first-type person in a region within a predetermined distance from a communication device installed in a structure when the communication device communicates with a mobile terminal carried by the first-type person; an extracting unit that extracts at least one person from an image captured by an image capturing device installed in the structure; and an associating unit that associates the extracted at least one person with information indicating the first-type person when a relationship between the region and the position of the at least one person satisfies a predetermined condition, wherein the predetermined condition is satisfied when the at least one person includes only one person in the region within the predetermined distance from the communication device.