Quadratic Autoencoder (Q-AE) for Low-Dose CT Denoising. - Fenglei Fan; Hongming Shan; Mannudeep K. Kalra; Ramandeep Singh; Guhan Qian; Matthew Getzin; Yueyang Teng; Juergen Hahn; Ge Wang 001 (IEEE Trans. Medical Imaging, 2020)