Analysis apparatus, analysis method, and storage medium

Abstract

Provided is an analysis apparatus ( 10 ) including a person extraction unit ( 11 ) that analyzes video data to extract a person, a time calculation unit ( 12 ) that calculates a continuous appearance time period for which the extracted person has been continuously present in a predetermined area and a reappearance time interval until the extracted person reappears in the predetermined area for each extracted person, and an inference unit ( 13 ) that infers a characteristic of the extracted person on the basis of the continuous appearance time period and the reappearance time interval.

1 . An analysis apparatus comprising
 a processor configured to:   analyze video data to extract a person;   calculate a continuous appearance time period for which each of the extracted person has been continuously present in a predetermined area; and   infer a characteristic of the extracted person on the basis of the continuous appearance time period.   
     
     
         2 . The analysis apparatus according to  claim 1 ,
 wherein the processor infers, on the basis of the continuous appearance time period, a purpose of the extracted person's presence in the predetermined area or that the extracted person is suspicious.   
     
     
         3 . The analysis apparatus according to  claim 1 ,
 wherein the processor counts the number of times each characteristic is inferred for each person, and calculates reliability of inferred characteristic for each person on the basis of the number of times each characteristic is inferred for each person.   
     
     
         4 . An analysis method performed by a computer, the method comprising:
 analyzing video data to extract a person;   calculating a continuous appearance time period for which each of the extracted person has been continuously present in a predetermined area; and   inferring a characteristic of the extracted person on the basis of the continuous appearance time period.   
     
     
         5 . A non-transitory storage medium storing a program that causes a computer to:
 analyze video data to extract a person;   calculate a continuous appearance time period for which each of the extracted person has been continuously present in a predetermined area; and   infer a characteristic of the extracted person on the basis of the continuous appearance time period.