Sparse-Data Deep Learning Strategies for Radiographic Non-Destructive Testing
- University of California, Merced, CA (United States)
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Radiography is an imaging technique used in a variety of applications, such as medical diagnosis, airport security, and nondestructive testing. We present a deep learning system for extracting information from radiographic images. We perform various prediction tasks using our system, including material classification and regression on the dimensions of a given object that is being radiographed. Our system is designed to address the sparse-data issue for radiographic nondestructive testing applications. It uses a radiographic simulation tool for synthetic data augmentation, and it uses transfer learning with a pre-trained convolutional neural network model. Using this system, our preliminary results indicate that the object geometry regression task saw an improvement of 70% in the R-squared value when using a multi-regime model. In addition, we increase the performance of the object material classification tasks by utilizing data from different imaging systems. In particular, using neutron imaging improved the material classification accuracy by 20% when compared to x-ray imaging.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-07NA27344
- OSTI ID:
- 2586667
- Report Number(s):
- LLNL--JRNL-868701
- Journal Information:
- Research in Nondestructive Evaluation, Journal Name: Research in Nondestructive Evaluation; ISSN 1432-2110; ISSN 0934-9847
- Publisher:
- Informa UK LimitedCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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