Controller for adjusting industrial camera lens and control method

A technology of industrial cameras and control methods, which is applied to TVs, color TV parts, electrical components, etc., can solve problems such as time-consuming, low accuracy, and unattended unattended, so as to save focusing time and improve shooting The effect of precision

Inactive Publication Date: 2020-04-17
苏州光测视界智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] During the working process of the camera, it is necessary to manually adjust the focal length of the lens through the program control adapter ring. The adjustment accuracy is limite

Method used

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  • Controller for adjusting industrial camera lens and control method
  • Controller for adjusting industrial camera lens and control method
  • Controller for adjusting industrial camera lens and control method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1

[0042] An industrial camera lens adjustment controller, as attached figure 1 As shown, one end of the controller is connected to a CCD image sensor for receiving images, and the other end is connected to an adapter ring for controlling the lens.

[0043] The controller includes a memory, a mainboard flash memory, a USB interface, an image access module, an image preprocessing analysis module, and a lens adapter ring control module.

[0044] The memory is 512MB DDR3 RAM, and the motherboard flash memory is 4GB, 8-bit motherboard flash memory (4GB 8-biteMMC on-board flash).

[0045] The USB interface is used to connect the adapter ring.

[0046] Further, the controller further includes a UART serial port interface, and the UART serial port interface is used to connect an adapter ring.

[0047] Further, the controller further includes an Ethernet interface, and the Ethernet interface is 1000M, which is used to connect to the adapter ring.

[0048] Further, the controller a...

Example Embodiment

[0050] Example 2

[0051] Based on the above embodiment 1, a control method of an industrial camera lens adjustment controller, as attached figure 2 As shown, including the following steps:

[0052] 101. The CCD image sensor transmits the collected video signal to the controller.

[0053] Among them, the CCD image sensor transmits the collected video signals in two ways, one way to the data collection and analysis center for storage and processing, and the other way to the autofocus controller.

[0054] 102. The controller processes each frame of image in real time, evaluates the clarity of the image, and judges whether the image of the object is clear and whether it can be focused accurately.

[0055] Among them, according to the characteristics of the measured object, the evaluation image definition uses an automatic focusing evaluation function based on the multi-directional maximum gradient threshold, that is, the image definition evaluation function, which is defined as follows:

...

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Abstract

The invention relates to a controller for adjusting an industrial camera lens and a control method. One end of the controller is connected with a CCD image sensor and used for receiving images, and the other end of the controller is connected with an adapter ring and used for controlling a lens. The controller comprises a memory, a mainboard flash memory, a USB interface, an image access module, an image preprocessing analysis module and a lens adapter ring control module. According to the control method, collected video signals are transmitted to the controller through the CCD image sensor, images are processed in real time, the image definition is evaluated, whether the object imaging is clear or not is judged, whether focusing is accurate or not is judged, the proper focusing step length and direction are determined, a control command is sent to an adapter ring, the adapter ring adjusts the focal length of a lens, and automatic focusing is completed. According to the passive focusing method, automatic focusing is carried out based on the clarity of the target image, automatic focusing of an industrial camera lens is realized, the focusing time is saved, and the shooting accuracy, the image quality and the stability are improved.

Description

technical field [0001] The invention relates to the technical field of industrial cameras, in particular to a controller and a control method for adjusting an industrial camera lens. Background technique [0002] Industrial cameras are also commonly known as video cameras. Compared with traditional civilian cameras, they have high image stability, high transmission capacity and high anti-interference ability. Most industrial cameras on the market are based on CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor) chip camera. [0003] CCD is currently the most commonly used image sensor for machine vision. It integrates photoelectric conversion, charge storage, charge transfer, and signal reading. It is a typical solid-state imaging device. The outstanding feature of CCD is that charge is used as signal, and it is different from other devices that use current or voltage as signal. This type of imaging device forms a charge packet through photoelectri...

Claims

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Application Information

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IPC IPC(8): H04N5/232
CPCH04N23/67
Inventor 李响山康利
Owner 苏州光测视界智能科技有限公司
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