Mirror surface object based on special structured light and transparent object detection method
A technology with a special structure and transparent objects, which is applied in the direction of optical testing of flaws/defects, measuring devices, and material analysis through optical means. It can solve problems such as many glass products, limited detection accuracy and speed, and damage to corporate interests. , to achieve good effect and fast effect
Inactive Publication Date: 2020-06-30
杨孝兰
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Problems solved by technology
[0005] The purpose of the present invention is to provide a method for detecting specular objects and transparent objects based on special structured light, which solves the problem that there are many glass products on the production line or rely on manual detection due to the limitation of detection accuracy and detection speed, so as to replace It is a manual inspection method that is not conducive to the health of workers and the interests of enterprises, so as to realize the rapid and accurate detection of dirt and defects on mirror objects and transparent objects
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[0034] like Image 6 As shown, a specular object and transparent object detection method based on special structured light includes the following steps:
[0035] Step S100: generating special structured light and projecting it onto the object under test, and the special structured light is reflected or transmitted through the object under test;
[0036] Step S200: collecting the image of the reflected or transmitted structured light carrying information;
[0037] Step S300: processing the reflected or transmitted structured light image carrying information to obtain surface dirt and defect information of the measured object.
[0038] Specifically, the structured light formula projected in step S100 is:
[0039]
[0040] Among them, the core area: refers to the light source area that provides incident light for the object that needs to detect dirt and defects or the part to be detected on the object; the non-core area: refers to other areas except the core area; A, B in th...
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The invention discloses a mirror surface object based on special structured light and a transparent object detection method, and the detection method comprises the following steps: 1, generating the special structured light, projecting the special structured light to a detected object, and enabling the special structured light to be reflected or transmitted to pass through the detected object; step 2, collecting the reflection or transmission structured light image carrying the dirt and defect information; and 3, processing the reflection or transmission structured light image carrying the information, and obtaining dirt and defect information on the measured object. Single-frame structured light reflected or transmitted by a measured object is collected, the dirt and defect distribution on the surface of the detected object can be simply and quickly obtained without contact; compared with a dark field detection method, the method has the advantages that the effect is better, comparedwith a modulation degree detection method, the speed is higher, no complex calibration process is needed in the whole detection process, and the method is rapid, easy to operate, simple and practical.
Description
technical field [0001] The invention belongs to the field of defect and dirt detection and recognition of mirror objects and transparent objects, and relates to a method for detecting mirror objects and transparent objects based on special structured light. Background technique [0002] With the rapid development of the electronic information industry at home and abroad, various types of optoelectronic devices are also rapidly introducing new ones. In the composition of various devices, parts with reflective or transmissive properties are often indispensable, and glass is a typical example. [0003] In the production process of glass products, due to reasons such as materials and manufacturing techniques, a certain proportion of defective products are often produced, and some pollutants may be introduced during the manufacturing process. For manufacturers, product quality is an important link to consider. The product quality inspection system can prevent defective products...
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IPC IPC(8): G01N21/94G01N21/95G01N21/958
CPCG01N21/94G01N21/95G01N21/958G01N2021/9511
Inventor 杨孝兰
Owner 杨孝兰