Patent ID: 6128396
Filing Date: 2000-10-03
Classification: G08B

Abstract:
An automatic monitoring apparatus for automatically detecting a detection object to be detected, based on a picture obtained from an image pickup device, comprising:moving object detecting means for detecting information about a moving object in the picture, based on a picture signal input from the image pickup device;characteristic quantity calculating means for calculating a characteristic quantity of the moving object, based on the information detected by the said moving object detecting means;characteristic quantity storing means for storing at least a characteristic quantity relating to a non-detection object that should not be detected; anddetermining means for comparing the characteristic quantity calculated by said characteristic quantity calculating means with the characteristic quantity stored in said characteristic quantity storing means, to determine whether or not the moving object is an object to be detected;wherein said characteristic quantity storing means includes:first characteristic quantity storing means for storing the characteristic quantity relating to a non-detection object that should not be detected; andsecond characteristic quantity storing means for storing the characteristic quantity relating to a detection object to be detected,wherein said moving object detecting means includes:inter-frame difference calculating means for calculating an inter-frame difference based on a frame picture signal input from the image pickup device,intra-frame difference calculating means for calculating an intra-frame difference based on the frame picture signal, andsuperposition detecting means for detecting a superposed region where the inter-frame difference supplied from said inter-frame difference calculating means and the intra-frame difference supplied from said intra-frame difference calculating means overlap each other.