Method for Marking and Positioning Corrosions in the Automobile Engine Cylinder Cavity from the Ultrasonic Phased Array C-scan Images
- DOI
- 10.2991/wartia-16.2016.254How to use a DOI?
- Keywords
- Engine, Corrosion, Ultrasonic phased array, C-scan image
- Abstract
In the automotive remanufacturing movement, the inspection of the corrosion defects on the engine cylinder cavity is a key and difficult problem. In this paper, the ultrasonic phased array is applied to detect the corrosions in this part, and a method for marking and positioning the corrosions from the ultrasonic phased array C-scan images based on a series of image processing algorithms is proposed. Firstly, the image enhancement algorithm is carried out to the C-scan image and the spurious signals are removed; then according to the characteristics of the C-scan image, the improved watershed segmentation algorithm which can avoid over-segmentation, i.e., the morphological labeled watershed algorithm is applied to segment the C-scan image and realize the defect marking; finally, the centroid extraction method is used for the defect positioning work. The final result demonstrates that the method we proposed is effective for marking and positioning corrosions in the automobile engine cylinder cavity from the ultrasonic phased array C-scan images.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Xiaoxia Yang AU - Bin Xue AU - LeCheng Jia AU - Hao Zhang PY - 2016/05 DA - 2016/05 TI - Method for Marking and Positioning Corrosions in the Automobile Engine Cylinder Cavity from the Ultrasonic Phased Array C-scan Images BT - Proceedings of the 2016 2nd Workshop on Advanced Research and Technology in Industry Applications PB - Atlantis Press SP - 1205 EP - 1210 SN - 2352-5401 UR - https://doi.org/10.2991/wartia-16.2016.254 DO - 10.2991/wartia-16.2016.254 ID - Yang2016/05 ER -