Low-light color camera

A color camera, low-illumination technology, applied in color TV, color TV components, image communication, etc. The effect of noise ratio

Inactive Publication Date: 2018-03-20
四川聚强创新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem of poor imaging quality of existing low-illuminance color cameras at night under low-illuminance, the present invention discloses a low-illuminance color camera

Method used

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Embodiment 1

[0026] Such as figure 2 As shown, the low-illuminance color camera of the present invention includes a camera casing (1), a photoelectric sensor (2), a near-infrared light source (3), a near-infrared lens-increasing lens (4), a monochrome image sensor (5), and a visible light lens (6), IRCUT (7), color image sensor (8), processing circuit (9), power supply interface (10), data interface (11). Among them, the power of the near-infrared light source (3) is 10W, and the wavelength is 808nm; the near-infrared lens increasing lens (4) and the visible light lens (6) are C-mount, the resolution is 2 million pixels, and the aperture F=1.2, suitable for the target surface The size is 1 / 1.8 inches, and the focal length is f=6mm; the monochrome image sensor adopts a 2-megapixel MonoCMOS star-level image sensor with a frame rate of 30fps, and the color image sensor adopts a 2-megapixel Bayer CMOS star-level image sensor with a frame rate of 30fps , the monochrome image sensor and color ...

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PUM

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Abstract

The invention discloses a low-light color camera. The problem that the existing low-light camera is bad in color imaging quality at night is solved. Under the near infrared light-filling condition, the camera shoots a gray image by using a near infrared anti-reflection lens and a monochrome image sensor, and shoots a color image by using a visible light lens parallel to the near infrared anti-reflection lens optical axis and the color image sensor, the brightness and color fusion is performed on the gray image and the color image in a YUV color space, thereby obtaining a low-light color image.The low-light color camera disclosed by the invention can improve the low-light color imaging quality, and reduces the manufacturing cost of the camera.

Description

technical field [0001] The invention belongs to the technical field of video surveillance and imaging, in particular to a low-illuminance color video camera. Background technique [0002] Video surveillance technology is widely used in military, security, and public safety fields. Cameras can be used to observe and record events in areas of interest, which play a major role in preventing crime and ensuring public safety. The camera is the key core device for the application of video surveillance technology, and the image sensor inside the camera can image the scene. The image quality captured by the camera is closely related to the ambient light conditions. Bright, clear images can be captured when there is sufficient light. When the light is insufficient, such as at night, the brightness of the captured image is not enough, and there is a lot of image noise, which cannot be clearly imaged. For video surveillance, a 24-hour surveillance capability is required. Therefore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/04H04N9/09H04N9/097H04N5/225H04N5/232
CPCH04N23/45H04N23/55H04N23/667H04N23/10H04N23/13H04N23/16
Inventor 不公告发明人
Owner 四川聚强创新科技有限公司
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