作者
Pierrick Coupé, José V Manjón, Maxime Chamberland, Maxime Descoteaux, Bassem Hiba
发表日期
2013/12/1
期刊
NeuroImage
卷号
83
页码范围
245-261
出版商
Academic Press
简介
In this paper, a new single image acquisition super-resolution method is proposed to increase image resolution of diffusion weighted (DW) images. Based on a nonlocal patch-based strategy, the proposed method uses a non-diffusion image (b0) to constrain the reconstruction of DW images. An extensive validation is presented with a gold standard built on averaging 10 high-resolution DW acquisitions. A comparison with classical interpolation methods such as trilinear and B-spline demonstrates the competitive results of our proposed approach in terms of improvements on image reconstruction, fractional anisotropy (FA) estimation, generalized FA and angular reconstruction for tensor and high angular resolution diffusion imaging (HARDI) models. Besides, first results of reconstructed ultra high resolution DW images are presented at 0.6 × 0.6 × 0.6 mm3 and 0.4 × 0.4 × 0.4 mm3 using our gold standard based on …
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P Coupé, JV Manjón, M Chamberland, M Descoteaux… - NeuroImage, 2013