Simulation-Aided Deep Learning for Laser Ultrasonic Visualization Testing

Miya Nakajima; Takahiro Saitoh; Tsuyoshi Kato

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arXiv · 2305.18614

Simulation-Aided Deep Learning for Laser Ultrasonic Visualization Testing

Miya Nakajima·Takahiro Saitoh·Tsuyoshi Kato

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Abstract

In recent years, laser ultrasonic visualization testing (LUVT) has attracted much attention because of its ability to efficiently perform non-contact ultrasonic non-destructive testing.Despite many success reports of deep learning based image analysis for widespread areas, attempts to apply deep learning to defect detection in LUVT images face the difficulty of preparing a large dataset of LUVT images that is too expensive to scale. To compensate for the scarcity of such training data, we propose a data augmentation method that generates artificial LUVT images by simulation and applies a style transfer to simulated LUVT images.The experimental results showed that the effectiveness of data augmentation based on the style-transformed simulated images improved the prediction performance of defects, rather than directly using the raw simulated images for data augmentation.

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BibTeX RIS

Miya Nakajima, Takahiro Saitoh, Tsuyoshi Kato. 2023-05-30. Simulation-Aided Deep Learning for Laser Ultrasonic Visualization Testing. https://arxiv.org/abs/2305.18614

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