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Near-infrared imaging method, device, equipment and storage medium

A camera device and near-infrared technology, applied in the field of camera devices, equipment and storage media, and near-infrared camera methods, capable of solving problems such as black areas, overexposed images, and shaking

Active Publication Date: 2021-09-10
BYD SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When driving at night, turning from a dark road to a scene with brighter street lights and passing cars, especially when an incoming car suddenly switches to high beams, or the sharp changes in exposure caused by the transition of the video image after turning off the high beams will easily make the automatic exposure There are transient black areas, overexposure, or jitter in the video image

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  • Near-infrared imaging method, device, equipment and storage medium
  • Near-infrared imaging method, device, equipment and storage medium
  • Near-infrared imaging method, device, equipment and storage medium

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] In order to solve the defects of the existing vehicle-mounted near-infrared night vision or near-infrared imaging in other fields with similar scene changes, the embodiment of the present application proposes an imaging method that uses a narrow-spectrum irradiance sensor to adapt to scene transients and quickly adjusts the exposure time. its camera.

[0027] It should be understood that the camera device can be used in vehicles as a vehicle-mounted...

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Abstract

The present invention relates to the field of image acquisition technology. The present invention provides a near-infrared imaging method, an imaging device, equipment and a storage medium. The near-infrared imaging method is applied to a near-infrared imaging device. The near-infrared imaging device includes a near-infrared imaging module. The method includes: acquiring an external light source and calculating the luminous flux of the external light source; determining the exposure time of the near-infrared camera module according to the luminous flux; The established mapping relationship corresponds to different exposure times for different shearing scenes, and has good real-time performance, which reduces the continuous shaking of video images captured by the near-infrared camera system, thereby achieving good real-time imaging.

Description

technical field [0001] The present invention relates to the technical field of image acquisition, and more specifically, to a near-infrared imaging method, an imaging device, equipment, and a storage medium. Background technique [0002] The traditional automatic exposure algorithm is based on the average brightness of the entire image, judges the difference between the average brightness and the target brightness to be achieved, and adjusts the aperture size and exposure time according to a fixed step, so that the exposure when shooting reaches a suitable value, so that the image brightness approaches the target brightness. Specifically, it can be divided into calculation method, table look-up method and iterative method. Since the brightness of the image imaged by the existing image sensor is not in a linear relationship with the external light, it is not suitable or satisfactory for many scenes. [0003] Specifically, traditional automatic exposure algorithms mainly incl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/235H04N5/225H04N5/33
Inventor 邱欣周刘国宁薛选然郑茂铃
Owner BYD SEMICON CO LTD