A vision measurement specular reflection light interference suppression method

A specular reflection and light interference technology, applied in the field of vision measurement, can solve problems such as specular reflection light interference, and achieve the effect of improving robustness and usability

Inactive Publication Date: 2018-01-12
四川精视科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new visual imaging method to solve the problem of specular light interference in visual measurement

Method used

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  • A vision measurement specular reflection light interference suppression method
  • A vision measurement specular reflection light interference suppression method
  • A vision measurement specular reflection light interference suppression method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The light source 10 adopts a 365nm ultraviolet light source, the optical filter 15 selects a 365nm narrow-band optical filter for use, selects green fluorescent powder to make a circular fluorescent artificial marker point 9, the central wavelength of the fluorescent light 12 is 532nm, and the optical filter 14 selects a 532nm narrow-band optical filter for use. The wavelength ranges of the filter 15 and the filter 14 do not overlap.

[0019] After the ultraviolet light emitted by the light source 10 is gated by the filter 15, other colors of light are eliminated, and the spectral energy is concentrated in the vicinity of 365nm. After irradiating the fluorescent powder on the surface of the fluorescent artificial marker point 9, the fluorescent light 12 is radiated outward. The central wavelength of the fluorescent light 12 is 532nm, the filter 14 only passes 532nm fluorescence and cuts off 365nm ultraviolet light, thereby avoiding the specular reflection light generated...

Embodiment 2

[0021] The light source 10 adopts a 280nm ultraviolet light source, the optical filter 15 selects a 280nm narrow-band optical filter for use, selects green fluorescent powder to make a circular fluorescent artificial marker point 9, the central wavelength of the fluorescent light 12 is 532nm, and the optical filter 14 selects a 532nm narrow-band optical filter for use. The wavelength ranges of the filter 14 and the filter 15 do not overlap.

[0022] After the ultraviolet light emitted by the light source 10 is gated by the filter 15, other colors of light are eliminated, and the spectral energy is concentrated around 280nm. After irradiating the fluorescent powder on the surface of the artificially marked 9 points, the fluorescent light 12 is radiated outward. The central wavelength of the fluorescent light 12 is 532nm. , the filter 14 only passes the 532nm fluorescent light 12 and cuts off the 280nm ultraviolet light, thereby avoiding the specular reflection light generated by...

Embodiment 3

[0024] The light source 10 adopts a 365nm ultraviolet light source, the filter 15 selects a 365nm narrow-band filter for use, selects red fluorescent powder to make a circular fluorescent artificial marker point 9, the central wavelength of the fluorescence 12 is 650nm, and the filter 14 selects a 650nm narrow-band filter for use. The wavelength ranges of the optical sheet 14 and the optical filter 15 do not overlap.

[0025] After the ultraviolet light emitted by the light source 10 is gated by the filter 15, other colors of light are eliminated, and the spectral energy is concentrated around 365nm. After irradiating the fluorescent powder on the surface of the fluorescent artificial marker point 9, the fluorescent light 12 is radiated outward. The central wavelength of the fluorescent light 12 is 650nm. , the filter 14 only passes the 650nm fluorescent light 12, and cuts off the 365nm ultraviolet light, thereby avoiding the specular reflection light generated by the specular ...

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Abstract

The invention discloses a vision measurement specular reflection light interference suppression method. The method is different from the existing methods which realize imaging by utilizing artificialmarking point surface reflected light, but realizes imaging by utilizing the excitation radiation light of the artificial marking points under a specific light source, and cuts off the mirror reflected light through an optical gating method and only accepts the excited radiation light of the artificial marking points so as to eliminate the problem of glare interference caused by the specular reflected light, improve the robustness of the vision measurement system and avoid the problem of impossibility of measurement or false measurement results caused by the glare interference.

Description

technical field [0001] The invention belongs to the technical field of visual measurement, and is characterized by a method for suppressing interference of specular reflected light of visual measurement. Background technique [0002] The basic principles of stereo vision measurement technology are as follows: figure 1 As shown, two light sources (1-1, 1-2) are used to illuminate the white circular artificial marking point (3) pasted on the surface of the measured object (2), and two cameras (4-1, 4-2) are used to synchronize Take the image of the artificial mark point (3) on the surface of the measured object, identify and locate the image coordinates of the center of the artificial mark point in the captured image, and obtain the three-dimensional coordinates of the center of the artificial mark point through 3D reconstruction, and then realize the position where the measured object is pasted with the artificial mark point The three-dimensional coordinates of the object ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01C11/00
Inventor 不公告发明人
Owner 四川精视科技有限公司
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