Control method and device for night vision compensation light switch
A control method and light switch technology, applied in the field of image processing, can solve the problems of night vision compensation light switch switching jitter and the like
Active Publication Date: 2022-07-12
HARBIN HYTERA TECH CORP
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Problems solved by technology
[0005] This application provides a control method and device for a night vision compensation light switch, the purpose of which is to solve the problem of switching vibration of the night vision compensation light switch without special hardware assistance
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[0053] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0054] The inventor found in the research that when the night vision mode is turned on, the images captured in the bright environment and the dark environment have a large difference in the u component and the v component; and, in the dark environment and the night vision compensation lamp is turned on. Next, the mean value of the u component and the mean value of the v component of the pixels in the target area in the image captured by t...
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The application provides a control method, device and law enforcement instrument for a night vision compensation light switch, wherein the method includes: determining an ambient light intensity value according to a light intensity value collected by a light sensor; when the ambient light intensity value is greater than a preset first A light intensity value, and when the night vision compensation light is on, obtain the u component mean value and v component mean value of the pixel points used to represent the target area in the image currently captured by the camera; at least in the u component mean value and v component mean value When the mean value does not belong to the preset area, control the night vision compensation light to turn off; the preset area is the mean value of the u component and the mean value of the v component of the pixels of the target area in the preset test image, at the right angle composed of the u component and the v component The area formed in the coordinate system; in the present application, when the u component and the v component do not belong to the preset area in the rectangular coordinate system, the current environment can be more accurately obtained as a bright environment, thereby solving the problem of switching jitter of the night vision compensation lamp.
Description
technical field [0001] The present application relates to the field of image processing, and in particular, to a control method and device for a night vision compensation light switch. Background technique [0002] When the mobile law enforcement instrument is law enforcement at night, because the light sensor detects that the environment is dark, it is necessary to turn on the night vision compensation light to start the night vision recording to ensure the capture of the picture. When the turned-on night vision compensation light encounters an obstacle and reflects the light of the compensation light back to the body camera, it will cause the light sensor to misjudge that the external environment is brighter, which will cause the body camera to turn off the night vision compensation light to stop the night vision mode. After the night vision compensation light is turned off, it will periodically cause the ambient light to be darker -> turn on the night vision compensati...
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IPC IPC(8): H04N5/235G06T7/90G06T7/00
CPCG06T7/0002G06T7/90G06T2207/10004H04N23/71H04N23/74Y02B20/40
Inventor 韩永哲宛宏祥朱国晗
Owner HARBIN HYTERA TECH CORP