Removal of high density Gaussian noise in compressed sensing MRI reconstruction through modified total variation image denoising method
Removal of high density Gaussian noise in compressed sensing MRI reconstruction through modified total variation image denoising method
复制标题
改进的全变分图像去噪方法去除压缩感知MRI重建中的高密度高斯噪声
DOI:
10.1016/j.heliyon.2020.e03680
复制
发表时间:
2020-03
期刊:
影响因子:
4
通讯作者:
Gang Cao
中科院分区:
文献类型:
--
作者:
Yonggui Zhu;Weiheng Shen;Fanqiang Cheng;Cong Jin;Gang Cao
A modified total variation MRI image denoising method is proposed in this paper. First, the proposed method removes the noise inK-space in compressed sensing MRI reconstruction. Then, the removedK-space data is used as a partial frequency observation in compressed sensing MRI model. The proposed method shows better results than RecPF method, LDP method, TVCMRI method, and FCSA method in sparse MRI reconstruction. The proposed method is tested against Shepp-Logan phantom and real MR images corrupted by noise of different intensity level, and it gives better Signal-to-Noise Ratio (SNR), the relative error (ReErr), and the structural similarity (SSIM) than RecPF, LDP, TVCMRI, and FCSA.
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