VIDEO MONITOR SYSTEM

PROBLEM TO BE SOLVED: To obtain a large screen video monitor system capable of quickly and correctly grasping each change point of a monitoring object by automatically comparing the current image with stored past images. SOLUTION: An image distributor 900 distributes the latest image from cameras 101 to 104 arranged so as to photograph a monitoring section, an image storing and distributing device 920 receives the latest image, stores them and distributes the stored image by request, a display controller 910 receives the latest information and stored information to compare them, extracts their differential image, and creates a composite image obtained by combining the stored image with the extracted differential image so as to display the composite image on a large screen display device so that change points between the current and past images can be grasped. COPYRIGHT: (C)2008,JPO&INPIT