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Time-division multiplexing supplementary light imaging device and method

An imaging device and technology for supplementary light, applied in the field of supplementary light imaging, can solve the problems of image overexposure distortion, inability to obtain real color information, interference, etc., to simplify the imaging optical path and imaging equipment, and efficiently generate synthetic frames. Effect

Active Publication Date: 2020-06-16
HUAWEI TECH CO LTD
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Problems solved by technology

Although the visible light fill-in light improves the brightness of the image, the high-brightness visible light fill-in light will interfere with the object being photographed, resulting in image overexposure and distortion
Another solution is to use infrared imaging. Although this method can obtain sufficient image brightness without obvious interference to the object being photographed, it cannot obtain the true color information of the object very well.

Method used

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  • Time-division multiplexing supplementary light imaging device and method
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  • Time-division multiplexing supplementary light imaging device and method

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Embodiment Construction

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0039] The drawings and descriptions discussed below and the various embodiments in this patent document illustrate the principles of the invention by way of illustration only and should not be construed in any way as limiting the scope of the invention. Visible light referred to in this application refers to electromagnetic waves with a wavelength greater than 400 nm and less than 700 nm; non-visible light referred to in this application refers to electromagnetic waves with wavelengths outside the wavelength range of visible light. Those skilled in the art will readily appreciate that the principles of the invention may be implemented in any type of suitable device or system. Specifically, the time-division multiplexing supplementary light imaging method involved in this applic...

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Abstract

The present application provides a time division multiplexing supplementary light imaging method and device. The method includes: using an image sensor to alternately generate a visible light frame and a supplementary light frame, the visible light frame is an image frame generated when the image sensor receives visible light and does not receive supplementary light, and the supplementary light frame is an image generated when the image sensor receives supplementary light frame; a composite frame is obtained by synthesizing adjacent or continuous visible light frames and supplementary light frames.

Description

technical field [0001] The present invention relates to the technical field of supplementary light imaging, in particular to a device and method for time division multiplexing supplementary light imaging. Background technique [0002] With the rapid development of image applications, the imaging quality requirements of image acquisition equipment under low illumination are getting higher and higher. In a low-light environment, compared with a normal-light scene, the image quality will be reduced, mainly manifested by reduced image brightness and increased noise. The biggest factor leading to the degradation of imaging quality is that the amount of light entering the imaging sensor decreases, and the signal-to-noise ratio of the output signal decreases. In this regard, there are two commonly used solutions. One solution is to increase the amount of visible light entering the image sensor under low illumination, that is, to use visible light supplementary light equipment for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235H04N5/351H04N5/232H04N5/225H04N9/04
CPCH04N23/70H04N5/265H04N23/56H04N23/55H04N23/71H04N23/741H04N23/74H04N5/38
Inventor 李瑞华赖昌材王庆平胡红旗陈晓雷
Owner HUAWEI TECH CO LTD
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