Camera test exposure method

An exposure method and camera technology, which are applied in image communication, TV, color TV components and other directions, can solve the problems of slow exposure speed and other problems, and achieve the effect of improving exposure speed.

Pending Publication Date: 2022-02-11
TRULY OPTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the camera starts to expose from the default value, and gradually increases its exposure register value to make the image reach a specific brightness. Generally, it needs to be exposed 3-4 times, which takes a certain amount of time and the exposure speed is relatively slow.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, a camera test exposure method includes the following steps:

[0038] Step 100: Determine the initial register value of the N+1th camera according to the exposure register value of the conventional camera when it is exposed to a specific image brightness, where N≥1.

[0039] In this step 100, as figure 2 As shown, for the first camera, the default value method in the prior art can still be used, that is, the initial registered value of the first camera is a value preset by the technician based on experience, that is, the preset value, Different batches of cameras can use the same preset value or the preset value corresponding to their respective batches as the initial registered value of the first camera of their respective batches when testing.

[0040] For the N+1th camera, the steps of determining the initial register value according to the exposure register value when the previous camera is exposed to a specific image brightness are as f...

Embodiment 2

[0050]A camera test exposure method, compared with Embodiment 1, the difference is that: in step 100, for the first camera, the initial registered value is also based on the exposure when the previous camera is exposed to a specific image brightness registered value to determine.

[0051] In a specific embodiment, such as image 3 As shown, the steps to determine the initial register value of the first camera according to the exposure register value when the previous camera is exposed to a specific image brightness are as follows:

[0052] According to the exposure registration value of a large number of cameras exposed to a specific image brightness in the past, the normal distribution of the exposure registration value when the specific image brightness is reached is obtained.

[0053] In the normal distribution, the lowest value within a predetermined variance range or a predetermined standard deviation range is selected as the initial registered value of the first camera....

Embodiment 3

[0060] A camera test exposure method, compared with Embodiment 1, the difference is: in step 100, for the Nth camera (all cameras), the initial registered value is exposed to a specific image according to the previous camera Brightness is determined by the exposure register value.

[0061] In a specific embodiment, such as Figure 5 As shown, the steps to determine the initial register value of the Nth camera according to the exposure register value when the previous camera is exposed to a specific image brightness are as follows:

[0062] According to the exposure registration value of a large number of cameras exposed to a specific image brightness in the past, the normal distribution of the exposure registration value when the specific image brightness is reached is obtained.

[0063] In the normal distribution, the lowest value within a predetermined variance range or a predetermined standard deviation range is selected as the initial registered value of the Nth camera. ...

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Abstract

The invention discloses a camera test exposure method, which comprises the following steps: step 100, determining an initial register value of an (N+1)th camera according to an exposure register value when a previous camera is exposed to specific image brightness, N being greater than or equal to 1; and step 200, driving the (N+1)th camera to gradually increase the exposure register value of the (N+1)th camera from the initial register value until the specific image brightness is reached. The camera test exposure method can improve the camera test exposure speed.

Description

technical field [0001] The invention relates to a camera exposure method, in particular to a camera test exposure method. Background technique [0002] Before leaving the factory, the camera needs to undergo multiple optical performance tests to test whether its various optical performances meet the requirements. When performing an optical performance test, it is often necessary to expose the camera to evaluate its optical performance by analyzing the image when it is exposed. Since the brightness of the test environment is different, the camera needs to gradually adjust its exposure register value according to the brightness of the test environment. , to bring the image to a certain brightness. [0003] In the prior art, the camera starts to expose from a default value, and gradually increases its exposure register value to make the image reach a specific brightness. Generally, 3-4 exposures are required, which takes a certain amount of time and the exposure speed is relat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00H04N5/235
CPCH04N17/002H04N23/73
Inventor 吴雄清
Owner TRULY OPTO ELECTRONICS
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