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Classifying scratch defects on billets using image processing and SVM

  • Sang Jun Lee*
  • , Sang Woo Kim
  • *Corresponding author for this work
  • Pohang University of Science and Technology

Research output: Contribution to journalJournal articlepeer-review

Abstract

In the steel manufacturing area, researches for defect inspection receive a big attention for quality control. This paper proposes an algorithm to detect a scratch defect on steel billets. This algorithm takes ROIs (Regions of Interest), and extracts 11 features which represent properties of defect on a ROI. SVM (Support Vector Machine) is used to classify defect and normal ROIs. The algorithm classifies a frame image of a Billet as a defect image if there is one or more defect ROIs. In the experiments, the proposed algorithm had reliable classifying accuracy.

Original languageEnglish
Pages (from-to)256-261
Number of pages6
JournalJournal of Institute of Control, Robotics and Systems
Volume19
Issue number3
DOIs
StatePublished - 2013

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure

Keywords

  • Automation
  • Defect detection
  • Image analysis
  • Inspection system
  • Steel

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