Development of an Automatic Optical Inspection System and its Application to Defect Examination

Jong Hann Jean; Chia Hong Chen; Tyng Bin Huang; Sheng Hong Tsai

doi:10.4028/www.scientific.net/AMM.479-480.636

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 479-480Development of an Automatic Optical Inspection...

Development of an Automatic Optical Inspection System and its Application to Defect Examination

Abstract:

In this paper, we have designed and integrated an automatic optical inspection system, emphasizing on software implementation of the image processing, measurement and analysis utilities. As for the hardware equipments, we design an LED illumination unit and the custom-tailored machinery. By comparing the support functions of several main import brands of the optical inspection machine, we propose an optical inspecting procedure. By using the Windows-based user interface, we implement nine inspecting software tools, namely, the average gray level tool, the thresholding tool, the positioning tool, the edge detection tool, the binary large object (BLOB) tool, the template building tool, the smart matching tool, the inspection sequence tool, and the platform operation tool. All these tools can be used in an inspection with single operation and can also be arranged in a proper sequence of operations to fulfill a complicated inspection procedure. We use several part sample images with defects provided by the supplier to verify our fulfilled system.

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Periodical:

Applied Mechanics and Materials (Volumes 479-480)

Pages:

636-640

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.479-480.636

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Online since:

December 2013

Authors:

Jong Hann Jean, Chia Hong Chen, Tyng Bin Huang, Sheng Hong Tsai

Keywords:

Automatic Optical Inspection, Defect Examination, Image Processing

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References

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