搜索结果: 1-3 共查到“医学 total-variation”相关记录3条 . 查询时间(0.062 秒)
We propose a denoising algorithm for medical images based on a combination of the total variation minimization scheme and the wavelet scheme. We show that our scheme offers effective noise removal i...
Total Variation Regularization of Matrix-Valued Images
Total Variation Regularization Matrix-Valued Images
2009/9/7
We generalize the total variation restoration model, introduced by Rudin, Osher, and Fatemi in 1992, to matrix-valued data, in particular, to diffusion tensor images (DTIs). Our model is a natural ext...
Suppression of MRI Truncation Artifacts Using Total Variation Constrained Data Extrapolation
Variation Constrained Data Extrapolation MRI
2009/9/4
The finite sampling of k-space in MRI causes spurious image artifacts, known as Gibbs ringing, which result from signal truncation at the border of k-space. The effect is especially visible for acquis...