KAUSHIK, S., et al. Potential Biomarkers From Positive Definite 4th Order Tensors In Hardi. In: 2021 IEEE 18th International Symposium on Biomedical Imaging (ISBI). International Symposium on Biomedical Imaging, Nice, 2021-04-13/2021-04-16. New Jersey: IEEE Signal Processing Society, 2021. p. 1003-1006. ISSN 1945-8452. ISBN 978-1-6654-1246-9. DOI 10.1109/ISBI48211.2021.9434144.
In this paper, we provide a framework to evaluate new scalar quantities for higher order tensors (HOT) appearing in high angular resolution diffusion imaging (HARDI). These can potentially serve as biomarkers. It involves flattening of HOTs and extraction of the diagonal D-components. Experiments performed in the 4th order case reveal that D-components encode geometric information unlike the isometric 6D 2nd order Voigt form. The existing invariants obtained from the Voigt form are considered for comparison. We also notice that D-components can be useful in segmentation of white matter structures in crossing regions and classification. Results on phantom and the synthetic dataset support the conclusions
eng
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
IEEE Signal Processing Society
dc.relation.ispartof
2021 IEEE 18th International Symposium on Biomedical Imaging (ISBI)
dc.subject
Biomarkers
eng
dc.subject
HARDI
eng
dc.subject
Anisotropy
eng
dc.title
Potential Biomarkers From Positive Definite 4th Order Tensors In Hardi
