Hybrid light supplement control method and system for face snapshot camera, medium and terminal

Abstract

The invention provides a self-adaptive hybrid light supplement control method and system for a face snapshot camera, a medium and a terminal. The method comprises the steps that the day and night state of a monitoring area is detected; when the monitoring area meets the preset night state, a first light supplementing mode is started, image information of the target scene is obtained, and the firstlight supplementing mode comprises infrared light supplementing; the image information in the first light supplementing mode is detected, and when a face image appears in a detection result, the infrared light intensity is adjusted according to the brightness of the face image; if the snapshot condition is met, the first light supplementing mode is closed, a second light supplementing mode is started, and the second light supplementing mode comprises white light supplementing; the white light intensity is adjusted according to the brightness of the face image of the target object to completeface snapshot. According to the invention, a mode of combining infrared light supplement and white light supplement is adopted, the problem that a single light supplement lamp cannot give consideration to camera concealment and snapshot image quality is solved, and the snapshot quality of face images at night is improved on the premise of ensuring the camera concealment.

Description

technical field [0001] The present invention relates to the field of image recognition, and in particular to a method, system, medium and terminal for controlling hybrid lighting of a face capture camera. Background technique [0002] With the development of the economy and people's increasing emphasis on personal and property safety, video surveillance cameras have been further widely used in production and life. With the application requirements of surveillance cameras in various scenarios, higher requirements are put forward for the applicability and diversity of its functions. At present, when the camera is used at night, it mostly uses infrared supplementary light or white light supplementary light: when using infrared supplementary light, in order to ensure the normal color of the image, it is necessary to switch the image to black and white mode and turn on the infrared filter. Infrared light is invisible light , has the characteristics of being invisible to the huma...

AI Technical Summary

Problems solved by technology

[0003] However, the picture captured by the camera using infrared supplementary light is black and white, and the information related to the image color is lost, which is not conducive to the identification of character attributes in the scene; when white light supplementary light is used, the image can maintain the color mode, but white light supplementary light belongs to visible light , it is easy to expose the position of the camera, and white light fill light will also produce light pollution

However, in an environment where the ambient light is low and the overall environment is very dark, it is difficult for the camera to obtain an effective chain of evidence in the event of misconduct

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