Datum positioning, object attitude adjustment and graphic display method based on machine vision

A positioning method and machine vision technology, applied in instruments, measuring devices, optical devices, etc., can solve the problems of poor human-computer interaction, no graphical interaction, and inability to know the true posture of the detected object, so as to shorten the time for positioning compensation. , the effect of shortening the positioning time

Active Publication Date: 2021-06-22
NINGBO SUNNY INSTR
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The current positioning compensation method is to directly compensate the compensation value to the movement process of the axis. This method has no graphic interaction, and the user cannot know the real posture of the currently detected object, and the human-computer interaction is poor.

Method used

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  • Datum positioning, object attitude adjustment and graphic display method based on machine vision
  • Datum positioning, object attitude adjustment and graphic display method based on machine vision
  • Datum positioning, object attitude adjustment and graphic display method based on machine vision

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specific Embodiment approach

[0066] figure 2 A schematic diagram of a fiducial adjustment platform for realizing the fiducial positioning method based on machine vision according to the present invention is schematically represented. Such as figure 2 As shown, there are two calibration holes A and B on the benchmark adjustment platform, which are regarded as two reference points. The benchmark adjustment platform can be installed on any combination of kinematic mechanisms as required.

[0067] In this embodiment, first, move the visual camera so that the benchmark adjustment platform reference point A is within the camera field of view, and record the position of the current axis (the position of the axis is the position that can prompt the visual camera to take pictures of the reference point A in the present invention, This position is not a fixed point, but refers to various points within the range where the reference point A can be photographed).

[0068] Second, move the visual camera so that th...

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Abstract

The invention relates to a machine vision-based reference positioning method, an object posture adjustment method and a graphic display method of the object's actual posture. The reference positioning method comprises steps: 1) calibrate the positions of two reference points on the reference adjustment platform; 2) calculate The angles of the two reference points relative to the visual camera, leveling the benchmark adjustment platform according to the angles; 3) positioning and recording the position where the visual camera can capture the reference points, taking the first reference point as the reference origin, and establishing Coordinate System. According to the reference positioning, object posture adjustment and graphic display method based on machine vision of the present invention, the time for positioning compensation can be shortened, and the actual posture of the detected object can be adjusted by only taking two points on the object, which is improved compared with taking three times. 33% positioning time. After detecting the rotation of the object, there is no need to perform positioning and taking pictures again, which greatly shortens the positioning time.

Description

technical field [0001] The invention relates to the field of automation equipment, in particular to a method for benchmark positioning, object posture adjustment and graphic display based on machine vision. Background technique [0002] At present, the detection object positioning methods of automatic detection equipment generally include mechanical positioning and machine vision positioning. [0003] At present, when the machine vision positioning method is used to compensate for non-circular detection objects, it is necessary to take two positioning marks first, and then take another mark after correcting the rotation angle to compensate for the XY direction. This method increases the positioning time and reduces the equipment cost. s efficiency. [0004] In the current positioning compensation method, when the detected object rotates at any angle, it is necessary to take another photo for positioning, which reduces the efficiency of the device. [0005] The current posi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/02
CPCG01B11/002G01B11/02
Inventor 郭波锋翁桌荒吴林哲
Owner NINGBO SUNNY INSTR
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