Performance measurement of thresholding algorithms in printed circuit board inspection system

Ismail Ibrahim, Syed Abdul Rahman Syed Abu Bakar, Musa Mohd Mokji, Kamal Khalil, Zulkifli Md Yusof, Jameel Abdulla Ahmed Mukred, Zuwairie Ibrahim, Mohd Saberi Mohamad, Wan Khairunizam Wan Ahmad

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is well-known that thresholding algorithm is needed by gray-scale images in segmentation operation. In this paper, real printed circuit boards used are captured using a monochrome charged coupled device camera and produced images consisting of foreground and background objects in gray-scale format. In order to correctly differentiate these two kinds of attributes, several of thresholding algorithms are applied. Then, misclassification error measure has been employed to evaluate the performances of these thresholding algorithms. This method gives information on how many percentages of background pixels wrongly assigned to foreground, and foreground pixels wrongly assigned to background pixels. As the best thresholding algorithm has been chosen, median filtering and the proposed defect classification algorithm can be applied to remove small noise in resultant images and classify the defects occurred on the printed circuit boards, respectively.

Original languageEnglish
Title of host publicationProceedings - CIMSim 2011
Subtitle of host publication3rd International Conference on Computational Intelligence, Modelling and Simulation
Pages242-247
Number of pages6
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2nd International Conference on Computational Intelligence, Modelling and Simulation 2011, CIMSim 2011 - Langkawi, Malaysia
Duration: Sept 20 2011Sept 22 2011

Publication series

NameProceedings - CIMSim 2011: 3rd International Conference on Computational Intelligence, Modelling and Simulation

Conference

Conference2nd International Conference on Computational Intelligence, Modelling and Simulation 2011, CIMSim 2011
Country/TerritoryMalaysia
CityLangkawi
Period9/20/119/22/11

Keywords

  • median filtering
  • misclassification error
  • PCB inspection system
  • thresholding

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computational Theory and Mathematics
  • Modelling and Simulation

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