Abstract: Provided are a dual-spectrum camera system based on a single sensor and an image processing method. The camera system includes a lens, an image sensor, and a logical light separation module and an image fusion module that are sequentially connected to the image sensor. The image sensor includes red-green-blue (RGB) photosensitive cells and infrared radiation (IR) photosensitive cells. An infrared cut-off filter layer is arranged on a light incoming path of the RGB photosensitive cells. The image sensor receives incident light entering through the lens to generate an original image and sends the original image to the logical light separation module. The logical light separation module converts and separates the original image into a visible light image and an infrared image, and sends the visible light image and the infrared image to the image fusion module to generate a fused image.

Abstract: Provided are a dual-spectrum camera system based on a single sensor and an image processing method. The camera system includes a lens, an image sensor, and a logical light separation module and an image fusion module that are sequentially connected to the image sensor. The image sensor includes red-green-blue (RGB) photosensitive cells and infrared radiation (IR) photosensitive cells. An infrared cut-off filter layer is arranged on a light incoming path of the RGB photosensitive cells. The image sensor receives incident light entering through the lens to generate an original image and sends the original image to the logical light separation module. The logical light separation module converts and separates the original image into a visible light image and an infrared image, and sends the visible light image and the infrared image to the image fusion module to generate a fused image.

Abstract: Disclosed are a method and device for switching between operation modes. The method includes: reading a current operation mode of a surveillance device, and recording an exposure parameter of the current operation mode; and when a switch between operation modes is to be performed, setting a target exposure value of a target operation mode to which the current operation mode is to be switched to, and calculating an exposure parameter of the target operation mode in combination with the exposure parameter of the current operation mode. The device includes: a recording module; a detection module; and a switching module. The method and device of the disclosure directly estimate the exposure parameter of the target operation mode according to the exposure parameter of the current operation mode without gradually adjusting the exposure parameter by metering and exposure calculation, thereby significantly increasing a switching speed.

Abstract: Disclosed are a method and device for switching between operation modes. The method includes: reading a current operation mode of a surveillance device, and recording an exposure parameter of the current operation mode; and when a switch between operation modes is to be performed, setting a target exposure value of a target operation mode to which the current operation mode is to be switched to, and calculating an exposure parameter of the target operation mode in combination with the exposure parameter of the current operation mode. The device includes: a recording module; a detection module; and a switching module. The method and device of the disclosure directly estimate the exposure parameter of the target operation mode according to the exposure parameter of the current operation mode without gradually adjusting the exposure parameter by metering and exposure calculation, thereby significantly increasing a switching speed.