On the other hand, in a case where there is a detection ID whose similarity is equal to or higher than the second threshold value in the group of the second layer, the person extraction unit 10 determines that a person whose outer appearance feature value is similar by the predetermined level or more to that of the person detected from the frame to be processed is present among persons detected in previously processed frames. Then, the person extraction unit 10 registers the detection ID of the person detected from the frame to be processed in the detected person information shown in
The data processing apparatus 1 may have a unit that receives a user input for setting the first threshold value and the second threshold value. The person extraction unit 10 may execute the above-described processing based on the set value.
According to the present example embodiment described above, the same advantageous effect as in the first example embodiment can be achieved. In addition, according to the present example embodiment, it is possible to increase the speed of retrieval processing.