Estimating fiber orientation distribution from diffusion MRI with spherical needlets
Medical Image Analysis(2018)
摘要
•Novel application of a multiresolution spherical basis to fiber orientation distribution (FOD) estimation from diffusion MRI data.•Excellent localization of FOD peaks and a stable and parsimonious representation of FOD.•Gain estimation accuracy and achieve bias-variance trade-off by sparsity and nonnegativity constraints.•Superior accuracy and robustness over competing techniques and the ability to resolve crossing at angles as small as 30°.
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关键词
Diffusion MRI,Fiber orientation distribution function,Spherical deconvolution,Spherical needlets,ℓ1 regression
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