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A method for calculating the sharpness of target line and detecting the back intercept of industrial camera

An industrial camera and high-definition technology, which is applied in the testing, calculation, and measuring devices of machines/structural components, etc., can solve the problem that the installation accuracy of industrial camera sensors cannot be guaranteed, the installation angle of industrial camera sensors is abnormal, and the industrial camera cut-off angle cannot be guaranteed. It can improve the anti-interference ability and fault tolerance rate, reduce the complexity of the operation, and improve the reliability and consistency.

Active Publication Date: 2020-10-09
BEIJING DAHENG IMAGE VISION +1
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Problems solved by technology

[0003] However, in the prior art, the method of inspecting the captured images is usually based on the detection of the standard image definition test card ISO12233. This method can only indicate that the assembly of the industrial camera is unqualified, and cannot determine whether the installation angle of the sensor of the industrial camera is abnormal. , or the adjustment of the back intercept of the industrial camera is abnormal, resulting in the installation accuracy of the industrial camera sensor and the consistency of the product cannot be guaranteed

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  • A method for calculating the sharpness of target line and detecting the back intercept of industrial camera
  • A method for calculating the sharpness of target line and detecting the back intercept of industrial camera
  • A method for calculating the sharpness of target line and detecting the back intercept of industrial camera

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[0028] combine Figure 1 to Figure 10 Examples of the present invention will be described in detail.

[0029] Such as figure 1 As shown, the target used for industrial camera detection in this embodiment includes: a central cross target 10 and four edge cross targets, each cross target includes two intersecting target lines; the central cross target 10 is arranged at the center of the target ; Four edge cross targets are respectively arranged on the four corners of the target, and for any edge cross target, the intersection point of the target line is arranged outside the center point of the corresponding edge cross target, and the edge cross target is divided into the first edge cross target 21, the second edge cross target The edge cross target 22, the third edge cross target 23 and the fourth edge cross target 24, the target line includes a first horizontal target line 35, a first vertical target line 36, a second horizontal target line 31 and a second vertical target line...

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Abstract

The invention discloses a target line definition calculation and industrial camera back intercept detection method. The back intercept detection method comprises the following steps of calculating thetarget line definition of a center cross target corresponding to any one focus ring adjustment angle according to the setting parameter of a camera, and generating a definition sequence; When an extreme value is determined to exist in the definition sequence, sending the prompting information of an industrial camera back intercept according to a difference value between a target line definition minimum value and a minimum definition standard value; and sending an installation error prompting message when the extreme value is determined not to exist in the definition sequence. In the technicalscheme of the invention, the automation degree of industrial camera back intercept detection is increased, man-made interference during a detection process is reduced, the reliability and the consistency of a detection effect are increased, and through using the method, the product quality of an industrial camera is increased.

Description

technical field [0001] The invention relates to the technical field of industrial camera detection, in particular to a histogram-based target line definition weighted calculation method, a detection method for industrial camera back intercept and an industrial camera detection method. Background technique [0002] The existing method of detecting whether the installation angle of the industrial camera sensor meets the requirements is to take the ISO12233 image definition test card, and then detect the resolution of the image after shooting to obtain the definition of the camera to be inspected, and then calculate the obtained definition Compared with the set standard, if the definition meets the set standard, it is determined that the installation angle of the industrial camera sensor meets the requirements, otherwise, reinstall the industrial camera sensor. [0003] However, in the prior art, the method of inspecting the captured images is usually based on the detection of ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02G06T7/13G06T7/187
CPCG01M11/00G06T7/13G06T7/187G06T2207/10004
Inventor 刘强强宋伟铭周中亚李润峰刘敏
Owner BEIJING DAHENG IMAGE VISION
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