Throng determination apparatus and throng determination method

An image input unit 2 for inputting a moving image, an image dividing unit 3 for dividing an input image into local regions, a motion detecting unit 5 for detecting the motion of each image divided into local regions, divided into local regions includes a human detection unit 6 for detecting whether a person is included in each image, and a throng judgment window generating unit 9 for generating a throng judgment window including a plurality of local regions, included in the swarm judgment window the person detecting unit 6 in the local regions included in the motion rate and throng judgment window obtained from the ratio of the local region determined that there is motion by the motion detection unit 5 in the local area is determined to contain a person determining the throng state of the input image by the person percentage obtained from the ratio of the local regions.