Patent ID: 7702019
Filing Date: 2010-04-20
Classification: G06K,G06T

Abstract:
1. A moving object detection device that detects a moving object based on an output from a target object detection sensor installed one- or two-dimensionally, said device comprising: a spatiotemporal data generation unit operable to generate, based on the output from the target object detection sensor, time series data which indicates a spatiotemporal image in which two-dimensional images that show the moving object are arranged along a time axis; a spatiotemporal fragment extraction unit operable to extract a spatiotemporal fragment from the spatiotemporal image indicated by the generated time series data, the spatiotemporal fragment being an image found in a cut plane or a cut fragment when the spatiotemporal image is cut along the time axis; an inter-leg information extraction unit operable to extract, based on the extracted spatiotemporal fragment, inter-leg information, which is information regarding an inter-leg temporal change arising from a movement of the moving object that has two or more legs; a periodicity analysis unit operable to analyze a periodicity found in the extracted inter-leg information; a movement information generation unit operable to generate, from the analyzed periodicity, movement information that indicates whether or not the moving object is present; and a parameter change unit operable to change, based on the generated movement information, spatiotemporal fragment extraction parameters, the spatiotemporal fragment extraction parameters specifying the cut plane or the cut fragment, wherein said spatiotemporal fragment extraction unit is operable to extract, as the spatiotemporal fragment, an image found when the spatiotemporal image is cut by the cut plane or the cut fragment specified by the spatiotemporal fragment extraction parameters changed by said parameter change unit.