Search Results for author: Stephen R. Aylward

Found 3 papers, 2 papers with code

Fluid registration between lung CT and stationary chest tomosynthesis images

1 code implementation6 Mar 2022 Lin Tian, Connor Puett, Peirong Liu, Zhengyang Shen, Stephen R. Aylward, Yueh Z. Lee, Marc Niethammer

We demonstrate our approach for the registration between CT and stationary chest tomosynthesis (sDCT) images and show how it naturally leads to an iterative image reconstruction approach.

Computed Tomography (CT) Image Reconstruction

Discovering Hidden Physics Behind Transport Dynamics

no code implementations CVPR 2021 Peirong Liu, Lin Tian, Yubo Zhang, Stephen R. Aylward, Yueh Z. Lee, Marc Niethammer

To help with identifiability, we develop an advection-diffusion simulator which allows pre-training of our model by supervised learning using the velocity and diffusion tensor fields.

Optical Flow Estimation Time Series +2

Perfusion Imaging: A Data Assimilation Approach

1 code implementation6 Sep 2020 Peirong Liu, Yueh Z. Lee, Stephen R. Aylward, Marc Niethammer

In this work we therefore propose a data-assimilation approach (PIANO) which estimates the velocity and diffusion fields of an advection-diffusion model that best explains the contrast dynamics.

Computed Tomography (CT)

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