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GPU-Based Hyperstreamlines for Diffusion Tensor Imaging [article]

G. Reina, K. Bidmon, F. Enders, P. Hastreiter, T. Ertl
2006 EUROVIS 2005: Eurographics / IEEE VGTC Symposium on Visualization  
We propose a new approach for the visualization of hyperstreamlines, which offers potential for better scalability than the conventional polygon-based approach.  ...  We demonstrate the effectiveness of this approach by comparing it to the performance and output of conventional visualization tools in the application area of diffusion tensor imaging of human brain MR  ...  We would like to thank Dorit Merhof and Markus Sonntag for various contributions to the visualization framework.  ... 
doi:10.2312/vissym/eurovis06/035-042 fatcat:7golotscyjhf3bffuhi7abucnu

Asymmetric Tensor Field Visualization for Surfaces

Guoning Chen, Darrel Palke, Zhongzang Lin, Harry Yeh, Paul Vincent, Robert S. Laramee, Eugene Zhang
2011 IEEE Transactions on Visualization and Computer Graphics  
Existing techniques for asymmetric tensor fields focus on the analysis, and simply use evenly-spaced hyperstreamlines on surfaces following eigenvectors and dual-eigenvectors in the tensor field.  ...  quickly in the image plane.  ...  Asymmetric Tensor Field Visualization Hyperstreamline-based techniques are employed for asymmetric tensor fields by Zheng and Pang [46] .  ... 
doi:10.1109/tvcg.2011.170 pmid:22034315 fatcat:sn7r5q46cff5jed7asqvfiarpq

Diffusion-Based Tractography: Visualizing Dense White Matter Connectivity from 3D Tensor Fields [article]

S. Muraki, I. Fujishiro, Y. Suzuki, Y. Takeshima
2006 International Workshop on Volume Graphics, Proceedings of the  
In this paper, we present a novel method, called diffusion-based tractography (DBT), for visualizing diffusion tensor magnetic resonance imaging datasets.  ...  We will demonstrate that the DBT method is effective for visualizing dense white matter connectivity from 3D diffusion tensor fields and that it is suitable for hardware acceleration using commodity graphics  ...  Acknowledgements Part of this work has been financially supported by ACT-JST, and JSPS under Grant-in-Aid for Scientific Research (B) 18300026.  ... 
doi:10.2312/vg/vg06/119-126 fatcat:sb2kxdjrxbbkjluaicu3akntre

Hybrid Visualization for White Matter Tracts using Triangle Strips and Point Sprites

Dorit Merhof, Markus Sonntag, Frank Enders, Christopher Nimsky, Peter Hastreiter, Guenther Greiner
2006 IEEE Transactions on Visualization and Computer Graphics  
Diffusion tensor imaging is of high value in neurosurgery, providing information about the location of white matter tracts in the human brain.  ...  For this purpose, textured triangle strips and point sprites are combined in a hybrid strategy employing GPU programming.  ...  INTRODUCTION Diffusion tensor imaging (DTI) is a magnetic resonance (MR) acquisition technique which has gained importance in recent years.  ... 
doi:10.1109/tvcg.2006.151 pmid:17080850 fatcat:5yb4422irza55l7rmbl5vjmhpi

Visualizing diffusion tensor imaging data with merging ellipsoids

Wei Chen, Song Zhang, Stephen Correia, David F. Tate
2009 2009 IEEE Pacific Visualization Symposium  
Most current methods for visualizing the diffusion tensor field can be categorized into two classes: integral curves and glyphs.  ...  Diffusion tensor fields reveal the underlying anatomical structures in biological tissues such as neural fibers in the brain.  ...  We use ellipsoids as the glyphs for diffusion tensors and allow these glyphs to merge or disconnect based on the relative positions of the tensors.  ... 
doi:10.1109/pacificvis.2009.4906849 dblp:conf/apvis/ChenZCT09 fatcat:5ded5osqfneevfoqqj5qphxuiu

A Viewer-dependent Tensor Field Visualization Using Multiresolution and Particle Tracing [chapter]

José Luiz Ribeiro de Souza Filho, Marcelo Caniato Renhe, Marcelo Bernardes Vieira, Gildo de Almeida Leonel
2012 Lecture Notes in Computer Science  
The particles are inserted and advected through the field based on a priority list which ranks tensors according to anisotropy measures and viewer parameters.  ...  Tensor fields representing colinear and coplanar structures are suitable for multiresolution analysis.  ...  Multiresolution analysis of diffusion tensor images can be found in the literature.  ... 
doi:10.1007/978-3-642-31075-1_53 fatcat:7pk4ghmnozfzfcg7ffovqln7zu

Direct visualization of fiber information by coherence

Mario Hlawitschka, Christoph Garth, Xavier Tricoche, Gordon Kindlmann, Gerik Scheuermann, Kenneth I. Joy, Bernd Hamann
2009 International Journal of Computer Assisted Radiology and Surgery  
Methods: We introduce a coherence measure defined for fiber tracts.  ...  This quantitative assessment is based on infinitesimal deviations of neighboring tracts and allows identification and segmentation of coherent fiber regions.  ...  Group of the Institute for Data Analysis and Visualization, UC Davis.  ... 
doi:10.1007/s11548-009-0302-5 pmid:20033521 fatcat:usam3gyaibbtde7pirp4mbvlpe

Coherent Structures of Characteristic Curves in Symmetric Second Order Tensor Fields

M Hlawatsch, J E Vollrath, F Sadlo, D Weiskopf
2011 IEEE Transactions on Visualization and Computer Graphics  
To further exemplify the suitability of our concept, we also present its application to stress tensor fields. Lastly, an accelerated implementation utilizing GPUs is presented.  ...  As the major application of this generalization, we present a semi-global method for visualizing coherent structures in symmetric second order tensor fields.  ...  Keck Laboratory for Functional Brain Imaging and Behavior, University of Wisconsin-Madison.  ... 
doi:10.1109/tvcg.2010.107 pmid:20733229 fatcat:gm5i3wqajbfylmwzbznrewo6ve

Superquadric Glyphs for Symmetric Second-Order Tensors

Thomas Schultz, Gordon L Kindlmann
2010 IEEE Transactions on Visualization and Computer Graphics  
With some exceptions, these methods work only for positive-definite tensors (i.e. having positive eigenvalues, such as diffusion tensors).  ...  We apply our new glyphs to stress tensors from mechanics, geometry tensors and Hessians from image analysis, and rate-of-deformation tensors in computational fluid dynamics.  ...  ACKNOWLEDGMENTS We thank the reviewers for their constructive comments.  ... 
doi:10.1109/tvcg.2010.199 pmid:20975202 fatcat:cemmgyjmhjaxtafysqrv6xths4

Beyond Topology: A Lagrangian Metaphor to Visualize the Structure of 3D Tensor Fields [chapter]

Xavier Tricoche, Mario Hlawitschka, Samer Barakat, Christoph Garth
2012 Mathematics and Visualization  
In fact, the very idea of a versatile visualization methodology for tensor fields that could transcend application domains has been virtually abandoned in favor of problem-specific feature definitions  ...  As a result, we propose an alternative structure characterization strategy for the visual analysis of practical 3D tensor fields, which we demonstrate on several synthetic and computational datasets.  ...  A prime example of this trend concerns the large body of work dedicated to diffusion tensor imaging (DTI) data, where anatomical structures such as fiber bundles are the natural focus of both analysis  ... 
doi:10.1007/978-3-642-27343-8_5 fatcat:pfqgqkeyfrgkfpsddeai66oazi

Visualization of Multi-Variate Scientific Data

R. Fuchs, H. Hauser
2009 Computer graphics forum (Print)  
We also provide a categorization of these techniques with the aim for a better overview of related approaches.  ...  Based on this classification we highlight combinable and hybrid approaches and focus on techniques that potentially lead towards new directions in visualization research.  ...  Gröller for his input and support of this work. We thank the reviewers for their helpful comments.  ... 
doi:10.1111/j.1467-8659.2009.01429.x fatcat:kywbqg572bgnfomvu4ht5u3fem

Fabric-Like Visualization of Tensor Field Data on Arbitrary Surfaces in Image Space [chapter]

Sebastian Eichelbaum, Mario Hlawitschka, Bernd Hamann, Gerik Scheuermann
2012 Mathematics and Visualization  
Tensors are of great interest to many applications in engineering and in medical imaging, but a proper analysis and visualization remains challenging.  ...  We introduce a novel approach to compute such a visualization from tensor field data that is motivated by image space line integral convolution (LIC).  ...  Motivation and Related Work Since the introduction of tensor lines and hyperstreamlines [6] , there have been many research efforts directed at the continuous representation of tensor fields, including  ... 
doi:10.1007/978-3-642-27343-8_4 fatcat:b7r7zdto6fcvnccf7bcdljslhy

Fiber Visualization with LIC Maps Using Multidirectional Anisotropic Glyph Samples

Mark Höller, Kay-M. Otto, Uwe Klose, Samuel Groeschel, Hans-H. Ehricke
2014 International Journal of Biomedical Imaging  
In diffusion tensor imaging (DTI), LIC bridges the gap between local approaches, for example directionally encoded fractional anisotropy mapping and techniques analyzing global relationships between brain  ...  In this paper an advancement of a previously published multikernel LIC approach for high angular resolution diffusion imaging visualization is proposed: a novel sampling scheme is developed to generate  ...  Furthermore, more complex approaches using hyperstreamlines [6] and tensor lines [7] have also been explored.  ... 
doi:10.1155/2014/401819 pmid:25254038 pmcid:PMC4164306 fatcat:5g4dyc5wz5blro6pbhuqdyj47u

Real-Time Approaches for Model-Based PIV and Visual Fluid Analysis [chapter]

Polina Kondratieva, Kai Bürger, Joachim Georgii, Rüdiger Westermann
2009 Notes on Numerical Fluid Mechanics and Multidisciplinary Design  
Velocimetry 28 DT Diffusion Tensor 126 DTI Diffusion Tensor Imaging 126 DT-MRI Diffusion Tensor Magnetic Resonance Imaging 126 FFT Fast Fourier Transform 28 FTLE Finite-Time Lyapunov Exponent  ...  • anchor lines: a feature-based importance-driven technique for flow visualization, • visualization techniques for diffusion tensor fields based on the particle tracing paradigm.  ...  The symmetric matrix is the finite-time Cauchy-Green deformation tensor. Note that C is a function of t 0 , ∆t, and p. These dependencies are omitted only for the sake of notational brevity.  ... 
doi:10.1007/978-3-642-01106-1_26 fatcat:vm4pfvmc6rfwzezdekdktydgxa

Illustrative uncertainty visualization of DTI fiber pathways

R. Brecheisen, B. Platel, B. M. ter Haar Romeny, A. Vilanova
2012 The Visual Computer  
Diffusion Tensor Imaging (DTI) and fiber tracking provide unique insight into the 3D structure of fibrous tissues in the brain.  ...  To demonstrate the flexibility of our framework, we compute this uncertainty in two different ways, based on (1) fiber distance and (2) the probability of a fiber connection between two brain regions.  ...  Acknowledgements We would like to thank the following people for their valuable input, feedback and datasets: Geert-Jan Rutten, M.D.  ... 
doi:10.1007/s00371-012-0733-9 fatcat:p4zndx6m75c5xprodn5gj5etce
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