作者
Yida Wang, Yang Song, Haibin Xie, Wenjing Li, Bingwen Hu, Guang Yang
发表日期
2017/10/14
研讨会论文
2017 10th international congress on image and signal processing, biomedical engineering and informatics (CISP-BMEI)
页码范围
1-5
出版商
IEEE
简介
In Magnetic Resonance Imaging (MRI), the K-space data is often under-sampled and truncated to shorten the scan time. However, the truncation of K-space also causes Gibbs ringing artifacts in the image, which seriously deteriorates the image quality. Inspired by the recent achievements of deep learning, we propose a novel method to reduce Gibbs artifacts in MRI with Convolutional Neural Network (CNN) in this paper. CNN is trained with a batch of image pairs with and without Gibbs artifacts. Afterwards, images with Gibbs artifacts can be input into the trained network to get the Gibbs-free images. Output of CNN is then transformed into K-space and merged with the sampled K-space data. Finally, inverse Fourier transform is applied to the merged K-space to get the final image. Experiments on both phantoms and real MRI images proved that the proposed method could reduce the Gibbs artifacts to a great degree …
引用总数
201920202021202220232024276352
学术搜索中的文章
Y Wang, Y Song, H Xie, W Li, B Hu, G Yang - 2017 10th international congress on image and signal …, 2017