Electronic component automatic counting method based on connected domain recognition

An electronic component and automatic counting technology, which is applied to the counting of randomly distributed items, counting objects, counting mechanisms/items, etc., can solve the problems of high labor intensity, inaccurate counting, and low efficiency of manual technical methods, and achieve improvement Efficiency and accuracy, the effect of precise counting

Inactive Publication Date: 2018-03-02
GUIZHOU AEROSPACE INST OF MEASURING & TESTING TECH
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: an automatic counting method of electronic components based on connected domain identification, image acquisition and image processing of counting components, and finally counting electronic components by the principle of counting connected domains to solve the problem of manual technology Problems of low method efficiency, inaccurate counting, and high labor intensity

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  • Electronic component automatic counting method based on connected domain recognition
  • Electronic component automatic counting method based on connected domain recognition
  • Electronic component automatic counting method based on connected domain recognition

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Embodiment Construction

[0029] Morphological erosion is a process of eliminating boundary points and shrinking the boundary inward. Can be used to eliminate small and meaningless objects. Corrosion algorithm: Use 3×3 structural elements to scan each pixel of the image and perform "AND" operation with the structural elements and the binary image covered by them. If they are all 1, the pixel of the resulting image is 1, otherwise it is 0. Result: The binary image is reduced by one circle.

[0030] Morphological dilation is the process of merging all background points in contact with an object into the object, expanding the boundary outward, which can be used to fill holes in the object. Expansion algorithm: Use 3×3 structural elements to scan each pixel of the image, and perform "AND" operation with the structural elements and the binary image covered by them. If they are all 0, the pixel of the resulting image is 0. Otherwise, it is 1, and the result is to enlarge the binary image by one circle.

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Abstract

The invention discloses an electronic component automatic counting method based on connected domain recognition. The method, by using a way of processing a picture containing the number of componentsby using MATLAB, converts components into connected domains in a picture, and calculates the number of the connected domains to determine the number of the components to be counted. The method includes steps of image acquisition, binarization processing, hole filling processing, morphological opening operation edge processing, morphological corrosion processing, morphological opening operation connected domain expansion processing, connected domain marking, and counting. The count output is the number of the components to be counted. After importing the image, the method starts the output result with a single key and has high efficiency and accurate counting results, thereby solves low efficiency, high labor intensity, and inaccurate counting results in the prior art.

Description

technical field [0001] The invention relates to an automatic counting method for electronic components based on connected domain identification, which belongs to the field of automatic counting and is mainly used for counting bulk electronic components. Background technique [0002] In electronic component manufacturing enterprises and electronic component testing industries, it is necessary to count and count electronic components produced or screened and tested. In actual work, most of them are carried out by manual counting, but the manual counting task is large, especially for tiny components, such as the size of the device is on the order of millimeters, due to lack of concentration or people during the counting process Eye fatigue from long-term work will lead to errors in counting and affect the total number of qualified deliveries. However, during production and screening tests, it is stipulated that the number of components to be screened must be accurate. Therefor...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/12G06T7/187G06M11/00
CPCG06M11/00G06T7/0004G06T2207/20036G06T2207/30148G06T2207/30242G06T7/12G06T7/187
Inventor 陆定红来启发范春帅
Owner GUIZHOU AEROSPACE INST OF MEASURING & TESTING TECH
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