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A parameter configuration method and device

A parameter configuration method and parameter technology, applied in the field of image processing, can solve the problems of poor consistency of collected images, affecting the quality of image collection, and time consuming.

Active Publication Date: 2020-02-07
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, the staff generally adjust the above parameters repeatedly according to personal experience, without a good reference basis and adjustment method, resulting in the above parameter configuration process spending a lot of time
In addition, due to the differences in the final image acquisition environment formed by the parameters configured by different staff, the consistency of the acquired images is poor, which affects the quality of image acquisition

Method used

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  • A parameter configuration method and device

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Embodiment 1

[0026] In the process of image acquisition using the CIS image sensor, the AD chip is required to complete sampling and analog-to-digital conversion, and the constant current source chip is required to provide current and exposure time to the CIS image sensor. The AD chip includes a gain register and a bias register. Therefore, the AD register parameters include AD bias parameters and AD gain parameters, and the constant current source parameters include constant current source current parameters and constant current source exposure time parameters.

[0027] figure 1 It is a flowchart of a parameter configuration method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation where the parameters of the AD chip and the constant current source chip are configured before the CIS image sensor is used to collect images. This method can be implemented by the parameter configuration device. For execution, the device may be implemented by soft...

Embodiment 2

[0045] attached Figure 2A It is a schematic flowchart of a method for configuring AD bias parameters provided by Embodiment 2 of the present invention. In this method, on the basis of the optimal AD gain parameter configured in the first embodiment, a configuration process of an optimal AD bias parameter is further added. The configuration method of the AD bias parameter specifically includes the following steps:

[0046] Step 210, collect the image data of the reference medium according to the optimal AD gain parameter, the third preset constant current source parameter and the first set AD bias parameter, and obtain the third pixel mean value of the currently collected image data;

[0047] In this step, the third preset constant current source parameters include third preset constant current source current parameters and third preset constant current source exposure duration parameters. Specifically, the third preset constant current source current parameter is 0, and the...

Embodiment 3

[0092] image 3 Shown is a schematic structural diagram of a parameter configuration device provided by Embodiment 3 of the present invention. This embodiment is applicable to the situation where the parameters of the AD chip and the constant current source chip are configured before the CIS image sensor is used. The device specifically includes:

[0093] The first pixel average value acquisition module 510 , the second pixel average value acquisition module 520 , the gain slope value acquisition module 530 , the current gain image data acquisition module 540 and the optimal AD gain parameter setting module 550 .

[0094] Wherein, the first pixel mean value acquisition module 510 is used to acquire the image data of the reference medium according to the first preset constant current source parameter, the first preset AD bias parameter and the first set AD gain parameter, and acquire the currently collected image data The mean value of the first pixel of ;

[0095] The second pi...

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Abstract

The invention discloses a parameter configuration method and device. The method includes: acquiring the image data of the reference medium according to the first preset constant current source parameter, the first preset AD bias parameter, the first set AD gain parameter or the second set AD gain parameter, and acquiring the current captured image respectively The first pixel mean value and the second pixel mean value of the data; according to the first set AD gain parameter, the first pixel mean value, the second set AD gain parameter and the second pixel mean value, obtain the gain slope value; according to the first set AD gain parameter and the second pixel mean value; Two preset constant current source parameters, the second preset AD bias parameter and the gain slope value, adjust the AD gain parameter to the current AD gain parameter, and collect the image data of the reference medium to obtain the current gain image data; if the current The gain image data satisfies the first preset condition, and the current AD gain parameter is set as the optimal AD gain parameter. The configuration parameter process is realized to be based on evidence, the consistency of image acquisition data is improved, and the image acquisition quality is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of image processing, and in particular, to a parameter configuration method and device. Background technique [0002] Image sensor, also known as photosensitive element, is a device that converts optical images into electronic signals, and is widely used in various electronic optical devices. At present, the image sensor is mainly divided into a charge coupled device (Charge Coupled Device, CCD) and a contact sensor device (Contact Image Sensor, CIS). CIS image sensor has many advantages such as good light source brightness, low distortion, low power consumption, small size, light weight, low failure rate, good shock resistance, and low use environment requirements, so it is widely used. [0003] However, in the process of image acquisition using CIS image sensor, AD chip is required to complete sampling and analog-to-digital conversion, and constant current source chip is required to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04N5/235H04N5/335H04N5/378
CPCH04N23/60H04N23/73H04N25/00H04N25/75
Inventor 杨博
Owner SHENZHEN YIHUA COMP
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