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Research on Surface Defect Inspection System for Small Magnetic Rings Based on Computer Vision

Author: YuZhanJiang
Tutor: YuHuaDong
School: Changchun University of Science and Technology
Course: Mechanical Manufacturing and Automation
Keywords: Defect detection Random texture Computer Vision Information entropy
CLC: TP274.4
Type: Master's thesis
Year: 2010
Downloads: 127
Quote: 2
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Abstract


Small NdFeB magnetic ring , the design bead surface defects detection system to achieve real-time automatic detection of bead surface . Detailed analysis of the causes of the magnetic ring defects , surface defect inspection system as well as the design of the various subsystems , and provides details on the design of the the toroid surface defects detection system hardware subsystems . And from the parts of the surface characteristics , the type of defect and the detection algorithm starting study the texture features of the toroid surface defects , the proposed image gradient variance weighted information entropy algorithm suppressing surface random texture , and then extract the toroid surface defects toroid surface defects detection and classification software algorithm design . Finally, through the off angle , pits , scratches , cracks and trachoma workpiece image test , to verify the feasibility of software algorithms and hardware system reliability .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Centralized testing and roving detection system
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