DAY AND NIGHT FILTER SWITCHER, SWITCHING METHOD THEREFOR, AND SWITCHING DEVICE THEREFOR

    公开(公告)号:US20240147060A1

    公开(公告)日:2024-05-02

    申请号:US18209073

    申请日:2023-06-13

    发明人: Zhendong FANG

    摘要: A switching method includes: determining a mean brightness value of pixels in an image and a maximum brightness value of the pixels in the image; determining a brightness threshold according to the maximum brightness value in the image; determining a proportion of an area where a brightness value of each pixel in the image is greater than or equal to the brightness threshold to the image to be a bright area proportion of the image; determining a mean brightness threshold and a mean brightness threshold range for the image according to the bright area proportion of the image; counting the number of consecutive image frames where the mean brightness value of the image is within the mean brightness threshold range; and in the case where the number of image frames is greater than or equal to a frame number threshold, switching a first working mode to a second working mode.