Physics > Data Analysis, Statistics and Probability
[Submitted on 9 Sep 2021 (v1), last revised 28 Sep 2021 (this version, v2)]
Title:A deep learned nanowire segmentation model using synthetic data augmentation
View PDFAbstract:Automatized object identification and feature analysis of experimental image data are indispensable for data-driven material science; deep-learning-based segmentation algorithms have been shown to be a promising technique to achieve this goal. However, acquiring high-resolution experimental images and assigning labels in order to train such algorithms is challenging and costly in terms of both time and labor. In the present work, we apply synthetic images, which resemble the experimental image data in terms of geometrical and visual features, to train state-of-art deep learning-based Mask R-CNN algorithms to segment vanadium pentoxide (V2O5) nanowires, a canonical cathode material, within optical intensity-based images from spectromicroscopy. The performance evaluation demonstrates that even though the deep learning model is trained on pure synthetically generated structures, it can segment real optical intensity-based spectromicroscopy images of complex V2O5 nanowire structures in overlapped particle networks, thus providing reliable statistical information. The model can further be used to segment nanowires in scanning electron microscopy (SEM) images, which are fundamentally different from the training dataset known to the model. The proposed methodology of using a purely synthetic dataset to train the deep learning model can be extended to any optical intensity-based images of variable particle morphology, extent of agglomeration, material class, and beyond.
Submission history
From: Binbin Lin [view email][v1] Thu, 9 Sep 2021 17:20:33 UTC (11,227 KB)
[v2] Tue, 28 Sep 2021 15:14:19 UTC (11,227 KB)
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