Patent ID: 8582822
Filing Date: 2013-11-12
Classification: G06K,G06T

Abstract:
1. A moving object detection apparatus which detects a moving object in video by performing segmentation on an image to specify all or part of regions of the moving object in the video, said moving object detection apparatus comprising: an image input unit configured to receive input of a plurality of pictures included in the video; a trajectory calculating unit configured to calculate a plurality of trajectories by detecting, for each block including at least one pixel that is included in one of the received pictures, a motion of the block between two pictures included in the video, and concatenating detected motions for the plurality of pictures; a subclass classification unit configured to classify the calculated trajectories into a plurality of subclasses each of which is a set of similar trajectories; an inter-subclass approximate geodetic distance calculating unit configured to calculate, for each of the subclasses, an inter-subclass approximate geodetic distance which represents similarity between the subclass and another one of the subclasses, using an inter-subclass distance that is a distance including a minimum value of a linear distance between each of trajectories belonging to the subclass and one of trajectories belonging to the other one of the subclasses; and a segmentation unit configured to perform segmentation by specifying, based on the calculated inter-subclass approximate geodetic distance, a set of subclasses including similar trajectories as a class.