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Papers/A modular U-Net for automated segmentation of X-ray tomogr...

A modular U-Net for automated segmentation of X-ray tomography images in composite materials

João P C Bertoldo, Etienne Decencière, David Ryckelynck, Henry Proudhon

2021-07-152D Semantic SegmentationSegmentation3D Semantic Segmentation
PaperPDFCode(official)

Abstract

X-ray Computed Tomography (XCT) techniques have evolved to a point that high-resolution data can be acquired so fast that classic segmentation methods are prohibitively cumbersome, demanding automated data pipelines capable of dealing with non-trivial 3D images. Deep learning has demonstrated success in many image processing tasks, including material science applications, showing a promising alternative for a humanfree segmentation pipeline. In this paper a modular interpretation of UNet (Modular U-Net) is proposed and trained to segment 3D tomography images of a three-phased glass fiber-reinforced Polyamide 66. We compare 2D and 3D versions of our model, finding that the former is slightly better than the latter. We observe that human-comparable results can be achievied even with only 10 annotated layers and using a shallow U-Net yields better results than a deeper one. As a consequence, Neural Network (NN) show indeed a promising venue to automate XCT data processing pipelines needing no human, adhoc intervention.

Results

TaskDatasetMetricValueModel
2D Semantic SegmentationGF-PA66 3D XCTJaccard (Mean)87Modular U-Net (2D)

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