Patent ID: 6339375
Filing Date: 2002-01-15
Classification: G01V

Abstract:
An image monitoring apparatus for monitoring an interior of a closed space having an opening/closing door, comprising:image acquiring means provided in a closed space facing a door of the closed space to acquire an image of an interior of the closed space including the door; door area defining means for setting a door defining area for the image; door extracting means for extracting a door image from the door defining area of the image; door open/closed state determining means for determining whether the door is open or closed based on an output of the door extracting means; passenger area defining means for setting a passenger defining area for the image; passenger extracting means for extracting a passenger image from the passenger defining area for the image; passenger presence determining means for determining whether a passenger is present in the closed space based on an output of the passenger extracting means; integrating means for determining whether a passenger is confined in the closed space by integrating determinations of the door open/closed state determining means and the passenger presence determining means; and alarming means for issuing an alarm if a passenger is confined in the closed space based on an output of the integrating means.