RWTH Aachen University prints 3D model of nasal cavity

The Rhinodiagnost team, the profile section Computational Science and Engineering (CompSE) of RWTH Aachen University, and the Jülich Aachen Research Alliance – High-Performance Computing (JARA-HPC) jointly participated in the “RWTH Science Night” and printed a 2:1 computer tomography-based 3D model of a nasal cavity. Therefore, a fused-deposition modeling (FDM) method was used to print the object layer-wise. The printing instructions […]

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Artificial Intelligence in Rhinodiagnost

Problem definition: Segmentation (generation of content-related regions, here: determination of nasal cavities and paranasal sinuses from CT images) using a “Convolutional Neural Network” (CNN) with Google TensorFlow In order to generate a 3D model from image data, the pixels that should represent the 3D model are to be selected. But CT pictures have image noise (random variation of brightness or […]

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Video – Flow

  Computational fluid dynamics (CFD) is an established method for the simulation of complex flows. It solves the Navier-Stokes equations (momentum, mass, and energy conservation) with numerical methods (e.g. finite volume of lattice-Bolztmann methods). Flow-related problems are processed in four steps. First, a geometry covering the volume of interest is created in a CAD program. The geometry is then cross-linked […]

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3D View

Image files that have been created by magnetic resonance tomography (MR), computed tomography (CT) or microtomography can be converted into a computer model by image-based meshing. With the Marching Cubes algorithm, a voxel image consisting of image points is approximated by a polygon image. By using triangulation the surface is then divided into pieces that are relevant for the flow […]

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