MONITORING METHOD, DIFFERENCE IMAGE CREATING METHOD, IMAGE RESTORING METHOD, AND DIFFERENCE DETECTING APPARATUS IN MONITORING CAMERA SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a monitoring method, a difference image generating method, an image restoring method, and a difference detecting apparatus in a monitoring camera system capable of reducing the transfer capacity to a recording server without reducing the number of frames transferred to the recording server and the resolution.;SOLUTION: A difference image generating method includes a step of preparing a first difference image in which an area in which a first whole image and a second whole image are not different is set as a mask area, which is a difference image between the first whole image and the second whole image, on the basis of the first whole image A and the second whole image B consecutively acquired next to the first whole image and a step of preparing a second difference image in which an area other than the mask area of the first difference area is set as a corresponding portion of the second whole image and transparent color information is set for the mask area of the first difference area, which is a difference image of the second whole image from the first difference image.;SELECTED DRAWING: Figure 7;COPYRIGHT: (C)2019,JPO&INPIT