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Phenomenology-Informed (PI) Machine Learning is introduced to address the unique challenges faced when applying modern machine-learning object recognition techniques to the SAR domain. PI-ML includes a collection of data normalization and augmentation techniques inspired by successful SAR ATR algorithms designed to bridge the gap between simulated and real-world SAR data for use in training Convolutional Neural Networks (CNNs) that perform well in the low-noise, feature-dense space of camera-based imagery. The efficacy of PI-ML will be evaluated using ResNet, EfficientNet, and other networks, using both traditional training techniques and all-SAR transfer learning.
Christopher P. Walker,Kelsie M. Larson,Ireena A. Erteza, andBrian K. Bray
"Phenomenology-informed techniques for machine learning with measured and synthetic SAR imagery", Proc. SPIE 11728, Algorithms for Synthetic Aperture Radar Imagery XXVIII, 1172807 (12 April 2021); https://doi.org/10.1117/12.2587835
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Christopher P. Walker, Kelsie M. Larson, Ireena A. Erteza, Brian K. Bray, "Phenomenology-informed techniques for machine learning with measured and synthetic SAR imagery," Proc. SPIE 11728, Algorithms for Synthetic Aperture Radar Imagery XXVIII, 1172807 (12 April 2021); https://doi.org/10.1117/12.2587835