1. A moving object detection apparatus for a moving picture, comprising: an approaching object detection unit configured to calculate a moving distance of each characteristic point in an image frame obtained at time point t−1, on the basis of an image frame obtained at time point t and an image frame obtained at time point t−1, and configured to calculate, on the basis of the image frame obtained at time point t−1 and an image frame obtained at time point t+m, a moving distance of a characteristic point that is in the image frame obtained at time point t−1 and that has a moving distance to be less than a prescribed value.