no code implementations • 25 Feb 2024 • Christopher Wiedeman, Chuang Niu, Mengzhou Li, Bruno De Man, Jonathan S Maltz, Ge Wang
Ultra-high resolution images are desirable in photon counting CT (PCCT), but resolution is physically limited by interactions such as charge sharing.
1 code implementation • 19 Jul 2022 • Christopher Wiedeman, Ge Wang
We propose a novel ensemble approach based on feature decorrelation and Fourier partitioning for teaching networks diverse complementary features, reducing the chance of perturbation-based fooling.
1 code implementation • 27 Aug 2021 • Christopher Wiedeman, Ge Wang
Furthermore, we show how applying a feature correlation loss, which decorrelates the extracted features in a latent space, can reduce the transferability of adversarial attacks between models, suggesting that the models complete tasks in semantically different ways.
no code implementations • 23 Jul 2019 • Hongming Shan, Christopher Wiedeman, Ge Wang, Yang Yang
Photoacoustic tomography seeks to reconstruct an acoustic initial pressure distribution from the measurement of the ultrasound waveforms.