• 4th order tensors for multi-fiber resolution and segmentation in white matter 

      Autor: Tsegey T.; Kaushik S.; Bansal A.; Slovak S.
      (ACM Press, 2021)
      Since its inception, DTI modality has become an essential tool in the clinical scenario. In principle, it is rooted in the emergence of symmetric positive definite (SPD) second-order tensors modelling the difusion. The ...
    • Geodesic fiber tracking in white matter using activation function 

      Autor: Tsegey T.; Kaushik S.; Bansal A.; Slovak J.; Vojtisek L.
      (Elsevier Irland Ltd., 2021)
      Background and objective:The geodesic ray-tracing method has shown its effectiveness for the reconstruction of fibers in white matter structure. Based on reasonable metrics on the spaces of the diffusion tensors, it can ...
    • Geodesic ray-tracing in white matter fiber crossing region using decomposition of 4th order tensor 

      Autor: Kaushik S.; Tsegey T.; Bansal A.; Slovak J.
      (The International Society for Optical Engineering (SPIE), 2021)
      The streamline methods in Diffusion tensor imaging (DTI) use principal eigenvectors for tracking white matter fibers. In comparison, the geodesics in a multivalued ray-tracing method are closer to the actual underlying ...
    • Potential Biomarkers From Positive Definite 4th Order Tensors In Hardi 

      Autor: Kaushik S.; Kybic J.; Bansal A.; Tsegey T.; Slovak J.
      (IEEE Signal Processing Society, 2021)
      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 ...