Surface defect detection method for rod-like high-reflectance part
A defect detection and high reflectivity technology, used in measuring devices, material analysis by optical means, instruments, etc., can solve problems such as machine vision detection obstacles, achieve efficient detection, overcome machine vision detection obstacles, and simple algorithms.
Active Publication Date: 2017-01-25
厦门威芯泰科技有限公司
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[0004] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a method for detecting surface defects of rod-shaped high-reflectivity parts, which can overcome the obstacle of machine vision detection caused by uneven reflection on the surface of rod-shaped high-reflectivity parts, with simple algorithm and high detection efficiency , which can realize accurate detection of various bad defects on the surface of rod-shaped high-reflectivity parts
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[0021] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.
[0022] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0023] This embodiment proposes a method for detecting surface defects of rod-shaped high-reflectivity parts. The parts to be tested are prevented from being placed in the detection device. The detection device includes...
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The invention provides a surface defect detection method for a rod-like high-reflectance part and relates to the technical field of surface defect detection. The method comprises the following detection steps: 1) opening a main light source for illumination, and collecting a first image of a to-be-detected part; 2) keeping the open state of a first light source while opening a second light source, and collecting a second image of the to-be-detected part; 3) processing the first image collected in the step 1), dividing and extracting a rod-like area of the to-be-detected part, and determining a detection area; and 4) performing image processing of the second image collected in the step 2) in the rod-like area extracted in the step 3), and analyzing and detecting the surface quality. The method provided by the invention can overcome the machine vision detection obstacle caused by non-uniform light reflection on the surface of the rod-like high-reflectance part, is simple in algorithm and efficient in detection and can realize accurate detection of multiple bad defects on the surface of the rod-like high-reflectance part.
Description
technical field [0001] The invention relates to the technical field of surface defect detection, in particular to a method for detecting surface defects of rod-shaped high-reflectivity parts. Background technique [0002] In the automated production process, machine vision technology is widely used, especially in the field of product quality inspection. Because most of the rod-shaped high-reflectivity parts have irregular metal reflections on the surface, it is difficult to use machine vision technology for detection. A large number of rod-shaped high-reflectivity parts are electronic component pins, whose quality determines the soldering performance and working performance of the electronic component, so it is a crucial link for the quality inspection of electronic component pins . [0003] At present, most manufacturers use manual observation and comparison for the quality inspection of rod-shaped high-reflectivity parts such as pins of electronic components. Moreover, ...
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IPC IPC(8): G01N21/952
CPCG01N21/952
Inventor 王磊段子爽
Owner 厦门威芯泰科技有限公司