Surveillance Camera with Auto-focusing Function Based on Complex Filtering Robust to Changes in Visibility State and Video Surveillance System to Which It Is Applied

摘要

A hardware filter that blocks one of an infrared band and a visible light band of light that has passed through the lens unit and transmits the other band, and a color image or a black-and-white image generated by the ISP in front of the lens unit. A software filter for filtering a color image or a black-and-white image generated by the ISP by removing an element that reduces a visibility distance; Controls the presence or absence of filtering of the filter, provides a sharp image that can always identify the target regardless of the visibility state in front of the surveillance camera, performs auto-focusing by analyzing the image provided through stepwise composite filtering, Always accurate To provide an auto-focusing function. [Selection diagram] Fig. 1