Low-dose CT noise reduction based on local total variation and improved wavelet residual CNN.

Journal: Journal of X-ray science and technology
Published Date:

Abstract

BACKGROUND: Low-dose computed tomography (LDCT) is an effective method for reducing radiation exposure. However, reducing radiation dose leads to considerable noise in the reconstructed image that can affect doctor's judgment.

Authors

  • Yi Liu
    Department of Interventional Therapy, Ningbo No. 2 Hospital, Ningbo, China.
  • Jiaqi Kang
    State Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan, China.
  • Zhiyuan Li
    School of Clinical Medicine, General Hospital of Ningxia Medical University, Yinchuan, China.
  • Quan Zhang
    Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.
  • Zhiguo Gui
    State Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan, China.