Here, an application example of the present example embodiment will be described. For example, moving image data captured by security cameras installed at places where many people gather and crimes such as pickpocketing, molesting, surreptitious shooting, and shoplifting frequently occur, such as train stations, sightseeing spots, shopping centers, convenience stores, and supermarkets, or places with possibility of such crimes is provided to the data processing apparatus 1 as data to be analyzed.

Then, the data processing apparatus 1 analyzes the moving image data to be analyzed, and extracts a person whose appearance frequency in the moving image data satisfies the predetermined condition (person with a high appearance frequency) among persons detected in the moving image data.

As a result, for example, a person lingering in the same place for viewing a site in advance for a crime (pickpocketing, molesting, surreptitious shooting, shoplifting, and the like) or frequently appearing at the same place, a person roaming about to find a crime target (a target of pickpocketing, molesting, surreptitious shooting, and the like), a person lingering at the same place to find a crime target (a target of pickpocketing, molesting, surreptitious shooting, and the like are to be committed), and a person lingering at the same place or roaming about waiting for a timing to commit a crime (pickpocketing, molesting, surreptitious shooting, shoplifting, and the like) are extracted.