An Uncertainty-Aware Deep Learning Framework for Defect Detection in Casting Products

نویسندگان

چکیده

Defects are unavoidable in casting production owing to the complexity of process. While conventional human-visual inspection products is slow and unproductive mass productions, an automatic reliable defect detection not just enhances quality control process but positively improves productivity. However, a challenging task due diversity variation defects' appearance. Convolutional neural networks (CNNs) have been widely applied both image classification tasks. Howbeit, CNNs with frequentist inference require massive amount data train on still fall short reporting beneficial estimates their predictive uncertainty. Accordingly, leveraging transfer learning paradigm, we first apply four powerful CNN-based models (VGG16, ResNet50, DenseNet121, InceptionResNetV2) small dataset extract meaningful features. Extracted features then processed by various machine algorithms perform task. Simulation results demonstrate that linear support vector (SVM) multi-layer perceptron (MLP) show finest performance images. Secondly, achieve measure epistemic uncertainty, employ uncertainty quantification (UQ) technique (ensemble MLP models) using extracted from pre-trained CNNs. UQ confusion matrix accuracy metric also utilized evaluate estimates. Comprehensive comparisons reveal method based VGG16 outperforms others fetch We believe uncertainty-aware solution will reinforce productions assurance.

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ژورنال

عنوان ژورنال: Social Science Research Network

سال: 2022

ISSN: ['1556-5068']

DOI: https://doi.org/10.2139/ssrn.4042653