Information processing device, imaging device, information processing method, and storage medium

An information processing method performed by an information processing device, the information processing method comprising:

• an acquisition process including acquiring, by an acquisition unit, an image of a queue and a number of persons in the queue;
• setting, by a setting unit, in the image, a first line corresponding to a position through which the person passes when entering a first area including at least a head of the queue, and a second line corresponding to the head of the queue and corresponding to a position through which the person passes when exiting from the first area;
• a first determination process including determining, by a first determination unit, that a person has passed through the first line;
• a second determination process including determining, by a second determination unit, that a person has passed through the second line;
• and
• a calculation process including performing, by a calculation unit, a first calculation process for calculating a waiting time of a subject person in the queue on the basis of a time when the subject person passed through the first line and a time when the subject person passed through the second line, or a second calculation process for calculating the waiting time of the subject person in the queue on the basis of a time when the number of people in the queue including the subject person is acquired in the acquisition process and a time when the subject person passed through the second line;
• a third determination process including determining, by a third determination unit, whether or not a tail end of the queue is closer to the head of the queue than a position of the first line;
• and
• an outputting process including outputting, by an output unit, the waiting time calculated by the calculation unit,
• wherein the calculation process includes switching, by the calculation unit, from performing one of the first and second calculation processes to the other of the first and second calculation processes in accordance with the determination of the third determination unit as to whether or not the tail end of the queue is closer to the head of the queue than a position of the first line.

A non-transitory computer readable storage medium storing a program for causing a computer to execute an information processing method, the information processing method comprising:

• an acquisition process acquiring, by an acquisition unit, an image of a queue and a number of persons in the queue;
• setting, by a setting unit, in the image, a first line corresponding to a position through which the person passes when entering a first area including at least a head of the queue, and a second line corresponding to the head of the queue and corresponding to a position through which the person passes when exiting from the first area;
• a first determination process including determining, by a first determination unit, that a person has passed through the first line;
• a second determination process including determining, by a second determination unit, that a person has passed through the second line;
• a calculation process including performing, by a calculation unit, a first calculation process for calculating a waiting time of a subject person in the queue on the basis of a time when the subject person passed through the first line and a time when the subject person passed through the second line, or a second calculation process for calculating the waiting time of the subject person in the queue on the basis of a time when the number of people in the queue including the subject person is acquired in the acquisition process and a time when the subject person passed through the second line;
• a third determination process including determining, by a third determination unit, whether or not a tail end of the queue is closer to the head of the queue than a position of the first line;
• and
• an outputting process including outputting, by an output unit, the waiting time calculated by the calculation unit,
• wherein the calculation process includes switching, by the calculation unit, from performing one of the first and second calculation processes to the other of the first and second calculation processes in accordance with the determination of the third determination unit as to whether or not the tail end of the queue is closer to the head of the queue than a position of the first line.