Weld Inspection Based on Radiography Image Segmentation with Level Set Active Contour Guided Off-Center Saliency Map
Radiography is one of the most used techniques in weld defect inspection. Weld defect detection becomes a complex task when uneven illumination and low contrast characterize radiographic images. In this paper we propose a new active contour based level set method for weld defect detection in radiogr...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/871602 |
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| _version_ | 1832558751828148224 |
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| author | Mohamed Ben Gharsallah Ezzeddine Ben Braiek |
| author_facet | Mohamed Ben Gharsallah Ezzeddine Ben Braiek |
| author_sort | Mohamed Ben Gharsallah |
| collection | DOAJ |
| description | Radiography is one of the most used techniques in weld defect inspection. Weld defect detection becomes a complex task when uneven illumination and low contrast characterize radiographic images. In this paper we propose a new active contour based level set method for weld defect detection in radiography images. An off-center saliency map exploited as a feature to represent image pixels is embedded into a region energy minimization function to guide the level set active contour to defects boundaries. The aim behind using salient feature is that a small defect can frequently attract attention of human eyes which permits enhancing defects in low contrasted image. Experiment results on different weld radiographic images with various kinds of defects show robustness and good performance of the proposed approach comparing with other segmentation methods. |
| format | Article |
| id | doaj-art-be4adc281b5f4685b80276826a207408 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-be4adc281b5f4685b80276826a2074082025-02-03T01:31:40ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/871602871602Weld Inspection Based on Radiography Image Segmentation with Level Set Active Contour Guided Off-Center Saliency MapMohamed Ben Gharsallah0Ezzeddine Ben Braiek1University of Tunis, Tunis National Higher School of Engineering (ENSIT), Research CEREP Unit, 5 Avenue Taha Hussein, 1008 Tunis, TunisiaUniversity of Tunis, Tunis National Higher School of Engineering (ENSIT), Research CEREP Unit, 5 Avenue Taha Hussein, 1008 Tunis, TunisiaRadiography is one of the most used techniques in weld defect inspection. Weld defect detection becomes a complex task when uneven illumination and low contrast characterize radiographic images. In this paper we propose a new active contour based level set method for weld defect detection in radiography images. An off-center saliency map exploited as a feature to represent image pixels is embedded into a region energy minimization function to guide the level set active contour to defects boundaries. The aim behind using salient feature is that a small defect can frequently attract attention of human eyes which permits enhancing defects in low contrasted image. Experiment results on different weld radiographic images with various kinds of defects show robustness and good performance of the proposed approach comparing with other segmentation methods.http://dx.doi.org/10.1155/2015/871602 |
| spellingShingle | Mohamed Ben Gharsallah Ezzeddine Ben Braiek Weld Inspection Based on Radiography Image Segmentation with Level Set Active Contour Guided Off-Center Saliency Map Advances in Materials Science and Engineering |
| title | Weld Inspection Based on Radiography Image Segmentation with Level Set Active Contour Guided Off-Center Saliency Map |
| title_full | Weld Inspection Based on Radiography Image Segmentation with Level Set Active Contour Guided Off-Center Saliency Map |
| title_fullStr | Weld Inspection Based on Radiography Image Segmentation with Level Set Active Contour Guided Off-Center Saliency Map |
| title_full_unstemmed | Weld Inspection Based on Radiography Image Segmentation with Level Set Active Contour Guided Off-Center Saliency Map |
| title_short | Weld Inspection Based on Radiography Image Segmentation with Level Set Active Contour Guided Off-Center Saliency Map |
| title_sort | weld inspection based on radiography image segmentation with level set active contour guided off center saliency map |
| url | http://dx.doi.org/10.1155/2015/871602 |
| work_keys_str_mv | AT mohamedbengharsallah weldinspectionbasedonradiographyimagesegmentationwithlevelsetactivecontourguidedoffcentersaliencymap AT ezzeddinebenbraiek weldinspectionbasedonradiographyimagesegmentationwithlevelsetactivecontourguidedoffcentersaliencymap |