A novel physics-based data augmentation approach for improved robust deep learning in medical imaging: lung nodule CAD false positive reduction in CT low-dose environments

Autor: Hyung S. Kim, Michael F. McNitt-Gray, William Hsu, Youngwon Choi, M Wahi-Anwar, Nastaran Emaminejad, Matthew S. Brown
Rok vydání: 2021
Předmět:
Zdroj: Medical Imaging 2021: Physics of Medical Imaging.
DOI: 10.1117/12.2582126
Popis: A novel physics-based data augmentation (PBDA) is introduced, to provide a representative approach to introducing variance during training of a deep-learning model. Compared to traditional geometric-based data augmentation (GBDA), we hypothesize that PBDA will provide more realistic variation representative of potential imaging conditions that may be seen beyond the initial training data, and thereby train a more robust model (particularly in the scope of medical imaging). PBDA is tested in the context of false-positive reduction in nodule detection in low-dose lung CT and is shown to exhibit superior performance and robustness across a wide range of imaging conditions.
Databáze: OpenAIRE