In addition, the output unit 20 may output a screen shown in FIG. 9. On the illustrated screen, a plurality of persons extracted by the person extraction unit 10 are displayed as a list so as to be aligned in the vertical direction in descending order of appearance frequency. In addition, a plurality of face images acquired from a plurality of different frames are displayed as a list so as to be aligned in the horizontal direction in association with each of the plurality of persons extracted by the person extraction unit 10. In a case where face images are acquired from frames exceeding the number that can be listed in the horizontal direction, a predetermined number of face images may be randomly extracted from the frames and displayed as a list as shown in FIG. 9.

Although not shown, the output unit 20 may further output the appearance frequency in the moving image data to be analyzed in association with each of the plurality of persons extracted by the person extraction unit 10.

As shown in FIG. 10, the output unit 20 may output information indicating a temporal change in appearance frequency in association with each of the plurality of persons extracted by the person extraction unit 10. In the example shown in FIG. 10, face images of the plurality of persons extracted by the person extraction unit 10 and graphs showing temporal changes in appearance frequency are displayed as a list so as to be aligned in the vertical direction in descending order of appearance frequency.