A method and device for determining the working mode of an imaging device

Abstract

The embodiment of the invention provides a method and equipment for determining the working mode of camera equipment in order to enable the working mode of the camera equipment to be normally switched in a visible light scene and an infrared light scene. The method comprises the following steps: determining information of an image taken by the camera equipment, wherein the information includes image brightness; determining the type of the working scene of the camera equipment according to the information of the image when the working mode of the camera equipment is the night mode; and re-determining the working mode of the camera equipment according to the image brightness and the type of the working scene.

Description

technical field [0001] The invention relates to the field of photographing applications, in particular to a method and device for determining the working mode of an imaging device. Background technique [0002] At present, the automatic day and night switching of the camera is usually based on the camera's perception of the scene brightness. When it is higher, it is switched to the day mode, and the filter is switched to the infrared filter mode. The advantage of this is that in day mode, the filter filters out infrared light, and only visible light passes through the sensor, avoiding image color distortion caused by the influence of infrared light; in night mode, the filter allows infrared light to pass through, improving The perceived brightness of the sensor enables the sensor to output a bright black-and-white image that can clearly see the content of the scene, which is conducive to nighttime monitoring. [0003] However, the above strategy will also bring some proble...

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Problems solved by technology

[0003] However, the above strategy will also bring some problems. For example, in a scene where the infrared light is relatively strong and the visible light is relatively weak, when the camera is turned into day mode, since a large amount of infrared light is filtered out, the sensor only perceives weak visible light. In this way, the camera automatically switches to the night mode. When the camera switches to the night mode, because a large amount of infrared light is sensed, the camera misjudges that the current scene is relatively bright, so it switches back to the day mode. Repeatedly, the camera does not Stop switching between day and night; through some control strategies, you can try to avoid repeated switching of the camera, but it will cause the camera to fail to switch back to the day mode in real visible light scenes

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