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Munir, Nauman; Kim, Hak-Joon; Park, Jinhyun; Song, Sung-Jin; Kang, Sung-Sik
Ultrasonics, April 2019, 2019-Apr, 2019-04-00, 20190401, Letnik: 94Journal Article
•Investigation of CNN for classification of noisy ultrasonic flaw signals.•Time shifting of signals for data augmentation.•Performance comparison of fully connected deep neural network and CNN. Ultrasonic flaw classification in weldment is an active area of research and many artificial intelligence approaches have been applied to automate this process. However, in the industrial applications, the ultrasonic flaw signals are not noise free and automatic intelligent defect classification algorithms show relatively low classification performance. In addition, most of the algorithms require some statistical or signal processing techniques to extract some features from signals in order to make classification easier. In this article, the convolutional neural network (CNN) is applied to noisy ultrasonic signatures to improve classification performance of weldment defects and applicability. The result shows that CNN is robust, does not require specific feature extraction methods and give considerable high defect classification accuracies even for noisy signals.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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