Search Results for author: Markus Axer

Found 5 papers, 1 papers with code

Self-Supervised Representation Learning for Nerve Fiber Distribution Patterns in 3D-PLI

no code implementations30 Jan 2024 Alexander Oberstrass, Sascha E. A. Muenzing, Meiqi Niu, Nicola Palomero-Gallagher, Christian Schiffer, Markus Axer, Katrin Amunts, Timo Dickscheid

To this end, we propose the application of a fully data-driven approach to characterize nerve fiber architecture in 3D-PLI images using self-supervised representation learning.

Contrastive Learning Representation Learning

GORDA: Graph-based ORientation Distribution Analysis of SLI scatterometry Patterns of Nerve Fibres

no code implementations12 Apr 2022 Esteban Vaca, Miriam Menzel, Katrin Amunts, Markus Axer, Timo Dickscheid

Scattered Light Imaging (SLI) is a novel approach for microscopically revealing the fibre architecture of unstained brain sections.

Scattered Light Imaging: Resolving the substructure of nerve fiber crossings in whole brain sections with micrometer resolution

1 code implementation3 Aug 2020 Miriam Menzel, Jan André Reuter, David Gräßel, Mike Huwer, Philipp Schlömer, Katrin Amunts, Markus Axer

We demonstrate in different brain samples (human optic tracts, vervet monkey brain, rat brain) that the 2D fiber directions can be reliably reconstructed for up to three crossing nerve fiber bundles in each image pixel with an in-plane resolution of up to 6. 5 $\mu$m.

Medical Physics Biological Physics Optics

Towards ultra-high resolution 3D reconstruction of a whole rat brain from 3D-PLI data

no code implementations29 Jul 2018 Sharib Ali, Martin Schober, Philipp Schlöme, Katrin Amunts, Markus Axer, Karl Rohr

We introduce a new method for registration and 3D reconstruction of high- and ultra-high resolution (64 $\mu$m and 1. 3 $\mu$m pixel size) histological images of a Wistar rat brain acquired by 3D polarized light imaging (3D-PLI).

3D Reconstruction

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