The present invention relates to a technique for determining a smile level for each area, and is used in the field of IoT (internet of things) and the like. The server device 200 acquires an image including a person captured by the camera 100. The server device 200 analyzes the acquired image to determine a smiling person. The server device 200 calculates and displays the smile degree for each area based on the determination result. Here, the degree of smile is an index by which the number of smiling people can be compared for each region, and for example, the number of smiling humans determined per day in the area with respect to the population of that area can be compared. It is the ratio of the total number.
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