The information processing apparatus comprises: an input unit which inputs moving image data of frames; a reference information acquisition unit which acquires reference information in accordance with the moving image data of one of the frames inputted to the input unit, the reference information forming a reference for identifying a constituent part of a person; a constituent part region extraction unit which extracts, in accordance with the reference information, a constituent part region where the constituent part of the person is situated, from the moving image data of each of the frames inputted after the frame from which the reference information has been acquired by the reference information acquisition unit; a priority region setting unit which sets, in accordance with the constituent part region, a priority region in the moving image data of each of the frames inputted after the frame from which the reference information has been acquired by the reference information acquisition unit; and a processing unit which carries out prescribed information processing preferentially in the priority region set by the priority region setting unit.