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Camera shooting parameter adjusting method

A shooting parameter adjustment and shooting parameter technology, applied in the field of sensors, can solve problems such as wrong identification of the road ahead, fluctuations in picture brightness, and untimely exposure of the camera, and achieve the effect of continuous and stable picture brightness and continuity.

Active Publication Date: 2021-04-16
FORYOU GENERAL ELECTRONICS
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  • Abstract
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Problems solved by technology

However, this adjustment method will cause rapid changes in the brightness of the ambient light at the junction of bright and dark areas, causing the camera to not expose in time, causing obvious fluctuations in the brightness of the picture, which will cause errors in the recognition of the road ahead for autonomous vehicles , resulting in safety accidents

Method used

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Embodiment Construction

[0042] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings. The accompanying drawings are only for reference and description, and do not constitute a limitation to the protection scope of the present invention.

[0043] like figure 1 As shown, this embodiment provides a camera shooting parameter adjustment method, including:

[0044] Step 1. Calibrate the relationship between ambient light intensity and image brightness, where the image brightness is the brightness of the image captured by the camera.

[0045] In this embodiment, the step 1 includes:

[0046] A11. Obtain a first linear relationship between ambient light intensity and image brightness within a preset ambient light intensity range.

[0047] The first linear relationship is: E=A'*Y / (T*G)+B', where A' and B' are parameters to be calibrated, E is ambient light intensity, Y is image brightness, and T is exposure time, G is the gain.

[0048]...

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Abstract

The invention provides a camera shooting parameter adjusting method, which comprises the following steps of: determining shooting parameters corresponding to a bright area and a shadow area by acquiring a light and shade boundary of the bright area and the shadow area, the bright area and the ambient light intensity of the shadow area, when a transition shooting mode triggering condition is met. an image is shot in a transition shooting mode, a final image is obtained through processing, continuity of sensor exposure is achieved, and continuous and stable picture brightness is guaranteed.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a camera shooting parameter adjustment method. Background technique [0002] During the driving process of the vehicle, the ambient light will undergo more complex changes, and it often shuttles back and forth between brightly lit environments and shadowed environments. The vehicle camera needs to adjust its exposure time correspondingly in different lighting environments to ensure that the camera captures the picture. clarity. [0003] In order to solve the above problems, existing cameras usually have an automatic light supplement function, the principle of which is to monitor the light intensity at the location of the camera in real time and perform adaptive adjustment. However, this adjustment method will cause rapid changes in the brightness of the ambient light at the junction of bright and dark areas, causing the camera to not expose in time, causing obvious fluctuations ...

Claims

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Application Information

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IPC IPC(8): H04N5/235
Inventor 林泽蓬蒋才科李枝阳
Owner FORYOU GENERAL ELECTRONICS
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