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Visually Guided Mesh Smoothing for Medical Applications [article]

Tobias Moench, Christoph Kubisch, Kai Lawonn, Ruediger Westermann, Bernhard Preim
2012 Eurographics Workshop on Visual Computing for Biomedicine  
Surface models derived from medical image data often exhibit artifacts, such as noise and staircases, which can be reduced by applying mesh smoothing filters.  ...  In this paper, we present an approach to improve the handling of mesh smoothing filters.  ...  Application The described methods are the core of a real-time smoothing framework of medical surface meshes.  ... 
doi:10.2312/vcbm/vcbm12/091-098 fatcat:u242rlr3wnd5bh5xe6sq72vrr4

Time-varying Image Data Visualization Framework for Application in Cardiac Catheterization Procedures [article]

Ying Liang Ma, Kawal S. Rhode, Andy P. King, Gang Gao, Phani Chinchapatnam, Tobias Schaeffter, Reza Razavi, Kurt Saetzler
2008 Computer Graphics and Visual Computing  
Visualization plays an important role in image guided surgery.  ...  In this case, we can use an adaptive Delaunay-based surface extraction algorithm for mesh generation, for which specifically developed for noisy binary image data sets.  ...  Acknowledgements This work was funded by DTI technology programme grant 17352 and Philips Medical Systems, Best, the Netherlands.  ... 
doi:10.2312/localchapterevents/tpcg/tpcg08/137-140 dblp:conf/tpcg/MaRKGCSRS08 fatcat:nsytcmwprnc3hlz24uht3ivkuu

Generation of smooth and accurate surface models for surgical planning and simulation

Tobias Moench, Mathias Neugebauer, Peter Hahn, Bernhard Preim
2010 Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling  
Furthermore, surface models are employed for generating volume meshes for simulating e.g. tissue deformation or blood flow. In such applications, smoothness and accuracy of the models are essential.  ...  Surface models from medical image data (intensity, binary) are used for evaluating spatial relationships for intervention or radiation treatment planning.  ...  for application within a surgical context.  ... 
doi:10.1117/12.844235 dblp:conf/miigp/MonchNHP10 fatcat:v3rpfpsmi5fwxgrtvh5fueuvfa

3D-printed surface mould applicator for high-dose-rate brachytherapy

Mark Schumacher, Andras Lasso, Ian Cumming, Adam Rankin, Conrad B. Falkson, L. John Schreiner, Chandra Joshi, Gabor Fichtinger, Robert J. Webster, Ziv R. Yaniv
2015 Medical Imaging 2015: Image-Guided Procedures, Robotic Interventions, and Modeling  
Moulds were created from the CT scan of thermoplastic mesh masks of actual patients. The patient-specific moulds have been visually verified to fit on the thermoplastic meshes.  ...  A 3D-printed mould with channels for the catheters designed from the patient's CT and mounted on a patient-specific thermoplastic mesh mask.  ...  The goal of this project is to create a module in the open source medical imaging program 3D Slicer [1] that creates such a custom applicator.  ... 
doi:10.1117/12.2082543 dblp:conf/miigp/SchumacherLCRFS15 fatcat:2tgrkkdgffgs7i26bah5ysyj7i

Blood flow in cerebral arteries – automated way from Computed Tomography to ANSYS Fluent

Jakub Bodys, Jakub Poraj, Maciej Kryś
2015 Advanced Technologies in Mechanics  
In this paper, a workflow for creating a numerical mesh for CFD simulation purposes is shown. Application shown in the example focus on cerebral arteries blood flow simulation.  ...  Numerical mesh is generated based on CT scan of patient's head, using freeware tools Slicer3D and AutoIt3 as well as commercial software ANSYS Fluent Meshing 15.0.</p>  ...  In this paper, a workflow for creating a numerical mesh for such applications is shown using freeware tools Slicer3D, AutoIt3 and commercial software for CFD analysis ANSYS Fluent 15.0 with its meshing  ... 
doi:10.17814/atim.2015.1(2).13 fatcat:zae5e2fpmnfszdfzjul4ciqqr4

Author's index

2000 ACM/IEEE SC 2000 Conference (SC'00)  
-Harvard Medical School Real-Time Biomechanical Simulation of Volumetric Brain Deformation for Image Guided Neurosurgery Whiting, Michael -Brigham Young University Parallel Phylogenetic Inference Widener  ...  Modeling and Tuning of an Unstructured Mesh CFD Application Grossman, R.  ... 
doi:10.1109/sc.2000.10057 fatcat:siz2mgpg3jhwbeos4ew7z3jmmq

RETRACTED ARTICLE: Texture-guided volumetric deformation and visualization using 3D moving least squares

Xin Zhao, Bo Li, Lei Wang, Arie Kaufman
2011 The Visual Computer  
Examining and manipulating the large volumetric data attract great interest for various applications.  ...  For such purpose, we first extend the 2D moving least squares (MLS) technique into 3D, and propose a texture-guided deformation technique for creating visualization styles through interactive manipulations  ...  Various volumetric datasets, including the complex medical datasets, are tested to demonstrate that our texture-guided 3D MLS system has great applications in the volume graphics and visualization area  ... 
doi:10.1007/s00371-011-0635-2 fatcat:3n6x3tnhx5ce7p36vjmwthxnoi

Surface reconstruction for planning and navigation of liver resections

Rafael Palomar, Faouzi A. Cheikh, Bjørn Edwin, Azeddine Beghdadhi, Ole J. Elle
2016 Computerized Medical Imaging and Graphics  
The median reconstruction error using automatic PSR was as low as 1.03 ± 0.23 mm, which makes the method suitable for clinical applications.  ...  On the other hand, clinicians perceive a significant improvement on visual quality for automatic PSR models compared to optimal (obtained in terms of accuracy/complexity) MCSD models.  ...  Mesh smoothness Liver parenchyma is inherently a smooth organ. Smoothness in the 3D model is essential for visualization since it contributes to the natural appearance of the organ.  ... 
doi:10.1016/j.compmedimag.2016.07.003 pmid:27490316 fatcat:mdjihsxapjcbpdeekddrv53ghi

Drawing Features of 3D Meshes in Pencil-drawing Style

Kyungha Min
2013 International Journal of Software Engineering and Its Applications  
We present a feature-guided salient rendering a 3D triangular mesh. For this, we compute directions on the vertices of the mesh and distribute noise on the faces of the mesh.  ...  After projecting the direction and noise into image space, we execute a convolution algorithm to render the mesh.  ...  Results International Journal of Software Engineering and Its Applications Vol.7, No.6 (2013)  ... 
doi:10.14257/ijseia.2013.7.6.30 fatcat:jwpigbiadvcybcs4hr72pccs3e

Visual Contrast Sensitivity and Discrimination for 3D Meshes and their Applications

G. Nader, K. Wang, F. Hétroy-Wheeler, f. Dupont
2016 Computer graphics forum (Print)  
Finally, we illustrate the utility of the proposed perceptual model in a number of applications: we compute the Just Noticeable Distortion (JND) profile for smooth-shaded 3D meshes and use the model to  ...  guide mesh processing algorithms.  ...  We then illustrate the utility of the perceptual model in several applications: we compute the JND profile for smooth-shaded meshes, and we use the model to guide mesh processing algorithms including vertex  ... 
doi:10.1111/cgf.13046 fatcat:dfvisc7cvnbvrkorufrgbr2vzi

User-driven 3D mesh region targeting

Peter Karasev, James Malcolm, Marc Niethammer, Ron Kikinis, Allen Tannenbaum
2010 Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling  
The result is a robust way for a user to easily interact with particular regions of a 3D mesh construced from medical imaging. We describe the applicability of the method for real-time clinician use.  ...  We present a method for the fast selection of a region on a 3D mesh using geometric information.  ...  Description of Purpose Many techniques have been devised for the structural segmentation of various anatomical features in medical imagery using 3D geometric information.  ... 
doi:10.1117/12.845661 dblp:conf/miigp/KarasevMNKT10 fatcat:jgc6xp576fcqrmu3udcwpqpl7q

Isosurface-Based Generation of Hulls Encompassing Neuronal Pathways

Dorit Merhof, Martin Meister, Ezgi Bingöl, Christopher Nimsky, Günther Greiner
2009 Stereotactic and Functional Neurosurgery  
However, for intraoperative application in combination with the neuronavigation system, these streamline representations are not adequate.  ...  ferent tract systems, which can be used as a basis for intraoperative visualization in the OR microscope. Distance measurements further confirm the accuracy of the hulls.  ...  Discussion The primary objective of this work is to improve fiber tract visualization for medical application by providing smooth hulls tightly fitting the underlying fiber tracts.  ... 
doi:10.1159/000195720 pmid:19174621 fatcat:yi25umpcmrh7rihst5sznanz3a

Mesh Processing in Medical-Image Analysis—a Tutorial

J. A. Levine, R. R. Paulsen, Yongjie Zhang
2012 IEEE Computer Graphics and Applications  
Visualizations of medical images are common, and major corporate vendors are increasing their visualiza-tion capabilities to help clinicians use augmented reality for clinical applications. 5 Direct  ...  For example, the mesh vertices can be smoothed and repositioned to improve the individual elements' shapes.  ... 
doi:10.1109/mcg.2012.91 pmid:24806984 fatcat:jyk4vmgb5ndqvbigauka5c2nle

OPTIMIZATION OF RAPID PROTOTYPING TECHNOLOGY FOR ADVANCED MEDICAL APPLICATIONS

Milan Šljivić, M. Stanojević, N. Grujović, R. Radonjić
2011 Contemporary Materials  
The optimal process of rapid prototyping has been defined for different medical input data and formats.  ...  The application of the two technologies: reverse engineering and rapid prototyping is emerging rapidly in the medical applications.  ...  12 .Figure 13 .Figure 14 . 1011121314 Meshing for sag 0,1mm and length 1mm -for the finest body structures Meshing for sag 0,1mm and length 3mm -for the simple body structures Meshing for sag 0,1mm and  ... 
doi:10.5767/anurs.cmat.110201.en.076s fatcat:ahikznh64bacbfmx5w5jzbqgnu

AimaSimul: A software tool to plan stent positioning in peripheral arteries and evaluate the associated fatigue fracture risk

D. Testi, N. J. B. McFarlane, H. Wei, Y. Zhao, G. J. Clapworthy, D. M. Ryan, P. Lawford
2013 13th IEEE International Conference on BioInformatics and BioEngineering  
Vascular stent deployment in peripheral arteries is a medical intervention in which a wire mesh tube is inserted into the artery to provide internal support.  ...  In particular, the AimaSimul preoperative planning tool allows clinicians, starting from patientspecific medical images, to interactively assess different stent models and deployment options for the risk  ...  Smoothness force The smoothness force in simplex mesh deformation has two components: a tangential component which tends to distribute the vertices so that the distances between them are uniform, and a  ... 
doi:10.1109/bibe.2013.6701648 dblp:conf/bibe/TestiMWZCRL13 fatcat:iz5paztj3rc43eqxhqsfguhnjq
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