IR or thermal image enhancement method based on background information for video analysis

摘要

The invention relates to an image enhancement method for automatic video surveillance or video analysis systems comprising at least one image acquisition device which is used to capture an image in the IR or thermal spectrum of an area of space, a background calibration system, and a detection system which is used to detect at least one type of object. The method comprises at least one processing step in which the contrast of the image captured by the image acquisition device is enhanced using image background or depth information obtained directly or indirectly by the background calibration system or introduced manually by the user.