Angular upsampling in diffusion MRI using contextual HemiHex sub-sampling in q-space. (arXiv:2211.00240v1 [eess.IV])

Artificial Intelligence (Deep Learning(DL)/ Machine Learning(ML)) techniques
are widely being used to address and overcome all kinds of ill-posed problems
in medical imaging which was or in fact is seemingly impossible. Reducing
gradient directions but harnessing high angular resolution(HAR) diffusion data
in MR that retains clinical features is an important and challenging problem in
the field. While the DL/ML approaches are promising, it is important to
incorporate relevant context for the data to ensure that maximum prior
information is provided …

angular arxiv diffusion sampling space