Evaluation of Data Augmentation and Loss Functions in Semantic Image Segmentation for Drilling Tool Wear Detection

• URL: http://arxiv.org/abs/2302.05262v2
• Date: Fri, 9 Feb 2024 13:40:22 GMT
• Title: Evaluation of Data Augmentation and Loss Functions in Semantic Image Segmentation for Drilling Tool Wear Detection
• Authors: Elke Schlager, Andreas Windisch, Lukas Hanna, Thomas Kl\"unsner, Elias Jan Hagendorfer, Tamara Teppernegg
• Abstract summary: We present a U-Net based semantic image segmentation pipeline, deployed on microscopy images of cutting inserts. The wear area is differentiated in two different types, resulting in a multiclass classification problem. We find, that the best performing models are binary models, trained on data with moderate augmentation and an IoU-based loss function.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Tool wear monitoring is crucial for quality control and cost reduction in manufacturing processes, of which drilling applications are one example. In this paper, we present a U-Net based semantic image segmentation pipeline, deployed on microscopy images of cutting inserts, for the purpose of wear detection. The wear area is differentiated in two different types, resulting in a multiclass classification problem. Joining the two wear types in one general wear class, on the other hand, allows the problem to be formulated as a binary classification task. Apart from the comparison of the binary and multiclass problem, also different loss functions, i. e., Cross Entropy, Focal Cross Entropy, and a loss based on the Intersection over Union (IoU), are investigated. Furthermore, models are trained on image tiles of different sizes, and augmentation techniques of varying intensities are deployed. We find, that the best performing models are binary models, trained on data with moderate augmentation and an IoU-based loss function.

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