NDLI: Morphology-Based Crack Detection for Steel Slabs

Content Provider	IEEE Xplore Digital Library
Author	Landstrom, A. Thurley, M.J.
Copyright Year	2007
Abstract	Continuous casting is a highly efficient process used to produce most of the world steel production tonnage, but can cause cracks in the semi-finished steel product output. These cracks may cause problems further down the production chain, and detecting them early in the process would avoid unnecessary and costly processing of the defective goods. In order for a crack detection system to be accepted in industry, however, false detection of cracks in non-defective goods must be avoided. This is further complicated by the presence of scales; a brittle, often cracked, top layer originating from the casting process. We present an approach for an automated on-line crack detection system, based on 3D profile data of steel slab surfaces, utilizing morphological image processing and statistical classification by logistic regression. The initial segmentation successfully extracts 80% of the crack length present in the data, while discarding most potential pseudo-defects (non-defect surface features similar to defects). The subsequent statistical classification individually has a crack detection accuracy of over 80% (with respect to total segmented crack length), while discarding all remaining manually identified pseudo-defects. Taking more ambiguous regions into account gives a worst-case false classification of 131 mm within the 30 600 mm long sequence of 150 mm wide regions used as validation data. The combined system successfully identifies over 70% of the manually identified (unambiguous) crack length, while missing only a few crack regions containing short crack segments. The results provide proof-of-concept for a fully automated crack detection system based on the presented method.
Sponsorship	IEEE Signal Processing Society
Starting Page	866
Ending Page	875
Page Count	10
File Size	1695177
File Format	PDF
ISSN	19324553
Volume Number	6
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Steel Surface morphology Surface cracks Slabs Image segmentation Morphology Inspection steel slabs Crack detection mathematical morphology
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Sub-Millimeter Crack Detection in Casted Steel Using Color Photometric Stereo

Defect detection algorithm for corner cracks in steel billet using discrete wavelet transform

Contrast-based color image segmentation

A Contrast Adjustment Thresholding Method for Surface Defect Detection Based on Mesoscopy

RFID Tag Antenna-Based Sensing for Pervasive Surface Crack Detection

A Statistical Method for Improved 3D Surface Detection

Active Contours on Graphs: Multiscale Morphology and Graphcuts

Special issue on filtering and segmentation in mathematical morphology

Tutorial on Connective Morphology

Morphology-Based Crack Detection for Steel Slabs

Similar Documents

Sub-Millimeter Crack Detection in Casted Steel Using Color Photometric Stereo

Defect detection algorithm for corner cracks in steel billet using discrete wavelet transform

Contrast-based color image segmentation

A Contrast Adjustment Thresholding Method for Surface Defect Detection Based on Mesoscopy

RFID Tag Antenna-Based Sensing for Pervasive Surface Crack Detection

A Statistical Method for Improved 3D Surface Detection

Active Contours on Graphs: Multiscale Morphology and Graphcuts

Special issue on filtering and segmentation in mathematical morphology

Tutorial on Connective Morphology

Morphology-Based Crack Detection for Steel Slabs