981,258 Hits in 5.2 sec

Volume rendering of unstructured hexahedral meshes

Fabio Markus Miranda, Waldemar Celes
2012 The Visual Computer  
To CAPES and Tecgraf for the financial support.  ...  However, volume visualization of unstructured hexahedral meshes is challenging due to the trilinear variation of scalar fields inside the cells.  ...  In 2010 he joined the Computer Graphics Technology Group (Tecgraf), contributing to the group's work for Petrobras.  ... 
doi:10.1007/s00371-012-0742-8 fatcat:wpgyy5b7azhjpk2yxpttr4ejhu

Fast rendering of foveated volumes in wavelet-based representation

Hang Yu, Ee-Chien Chang, Zhiyong Huang, Zhijian Zheng
2005 The Visual Computer  
Hence, it is possible to interactively modify different viewing parameters like the transfer functions. A potential application of our algorithm is in remote visualization of large volume data-sets.  ...  Excluding the forward wavelet transformation on the original volume, no other preprocessing on the coefficients is required.  ...  Introduction Volume TS a visualization inherently consumes a huge amount of computing resources due to the large data size.  ... 
doi:10.1007/s00371-005-0331-1 fatcat:5zwefxfahrbgnmcw7laeswnzle

OLBVH: octree linear bounding volume hierarchy for volumetric meshes

Daniel Ströter, Johannes S. Mueller-Roemer, André Stork, Dieter W. Fellner
2020 The Visual Computer  
As our new data structure results in tightly fitting bounding volumes, boundary markers can be associated with nodes in the hierarchy.  ...  We present a novel bounding volume hierarchy for GPU-accelerated direct volume rendering (DVR) as well as volumetric mesh slicing and inside-outside intersection testing.  ...  The Fusion and Jets meshes are courtesy of the university of Utah.  ... 
doi:10.1007/s00371-020-01886-6 fatcat:cfizledg2fftboc6hgc3ojsm64

Using Registration Uncertainty Visualization in a User Study of a Simple Surgical Task [chapter]

Amber L. Simpson, Burton Ma, Elvis C. S. Chen, Randy E. Ellis, A. James Stewart
2006 Lecture Notes in Computer Science  
We present a novel method to visualize registration uncertainty and a simple study to motivate the use of uncertainty visualization in computer-assisted surgery.  ...  Our visualization method resulted in a statistically significant reduction in the number of attempts required to localize a target, and a statistically significant reduction in the number of targets that  ...  Each of the fifteen subjects was presented with 10 tasks without visualizations of uncertainty information and the same 10 tasks with uncertainty information visualized.  ... 
doi:10.1007/11866763_49 fatcat:qhi6dmifardjpbs643zolawb7y

Improving UV Resistance of Fibers: Idealized Computational Model Predicting the Distribution of UV Blocking Cylindrical Nanoparticles in Protective Polymeric Layer

Abdelfattah Mohamed Seyam, Rahul Vallabh, Ahmed H. Hassanin
2015 Journal of Engineered Fibers and Fabrics  
fraction in a three-dimensional volume of protective sheath of a given length, width, and thickness. 2D visualization and image analysis techniques were utilized to determine the area projected by the  ...  In this work, a computational model was developed to optimize critical factors such as thickness (weight) of the protective sheath and the amount of UV blockers for a given particle size, which influence  ...  ACKNOWLEDGMENT This work is funded by the Government of Egypt (under the channel program) and the State of North Carolina, USA.  ... 
doi:10.1177/155892501501000103 fatcat:ilquh6hsx5affdsbfqvyvgp5aa

Next-generation visual supercomputing using PC clusters with volume graphics hardware devices

Shigeru Muraki, Masato Ogata, Kwan-Liu Ma, Kenji Koshizuka, Kagenori Kajihara, Xuezhen Liu, Yasutada Nagano, Kazuro Shimokawa
2001 Proceedings of the 2001 ACM/IEEE conference on Supercomputing (CDROM) - Supercomputing '01  
To seek a low-cost, extensible solution for the large-scale data visualization problem, a visual computing system is designed as a result of a collaboration between industry and government research laboratories  ...  This scalable system is a commodity PC cluster equipped with the Vol-umePro 500 volume graphics cards and a specially designed image compositing hardware.  ...  Yutaka Ishikawa of the Real World Computing Partnership (RWCP) for his instruction on the PC cluster techniques.  ... 
doi:10.1145/582034.582085 dblp:conf/sc/MurakiOMKKLNS01 fatcat:pjwnviwvxrfipolud5dori7g6e

Graph visualization tool for Twittersphere users based on a high-scalable extract, transform and load system

Pablo Aragón, Íñigo García, Antonio García
2011 Proceedings of the International Conference on Web Intelligence, Mining and Semantics - WIMS '11  
doi:10.1145/1988688.1988743 dblp:conf/wims/AragonGG11 fatcat:awps35akpvf4fio2tzldd3yhsu

Fast visualization of needle motion in volume rendered image for spine biopsy simulator

Keun Ho Kim, Jong Beom Ra, Hyun Wook Park, Seong K. Mun
2000 Medical Imaging 2000: Image Display and Visualization  
The realization ofthe medical instruments can be performed by surface rendering rather than volume rendering to visualize the fast motion of the medical instruments.  ...  In this paper, we present an algorithm to combine a volume-rendered image and a surface-rendered needle image. The volume rendering requires a larger amount of computations and memory space.  ...  First, the reduction of computation amount and memory cost is possible since the medical instrument is rendered by surface rendering, not by volume rendering.  ... 
doi:10.1117/12.383044 fatcat:g37uq2kjnjd55cpp5fatw5msh4

Visibility-Weighted Saliency for Volume Visualization [article]

Shengzhou Luo, John Dingliana
2015 Computer Graphics and Visual Computing  
Visibility-weighted saliency is based on a computational measure of perceptual importance of voxels and the visibility of features in volume rendered images.  ...  However, obtaining clear visualization of the features of interest in a volume is still a major challenge.  ...  Introduction Volume visualization is an active branch of scientific visualization.  ... 
doi:10.2312/cgvc.20151243 dblp:conf/tpcg/LuoD15 fatcat:s4wugepmxbg5hd3rjhqboet3oq

Tools and Techniques for Direct Volume Interaction [article]

Alexander Wiebel, Tobias Isenberg, Stefan Bruckner, Timo Ropinski
2015 Eurographics State of the Art Reports  
The tutorial will start by reviewing common classes of interaction tasks in volume visualization, motivating the need for direct interaction and manipulation, and describing the usually encountered difficulties  ...  The use of alternative paradigms for interaction with volumes is discussed in the third part.  ...  Timo Ropinski is professor in Visual Computing at Ulm University, Germany, where he is heading the Visual Computing Group.  ... 
doi:10.2312/egt.20151047 fatcat:yws5p5qxwbds7mtzigdjt7745a

3D Primitives Gpgpu Generation for Volume Visualization in 3D Graphics Systems [article]

Anas M. Al-Oraiqat, Sergii A. Zori
2020 arXiv   pre-print
This article discusses the study of 3D graphic volume primitive computer system generation (3D segments) based on General Purpose Graphics Processing Unit (GPGPU) technology for 3D volume visualization  ...  It is based on the general method of Volume 3D primitive generation and an algorithm for the voxelization of 3D lines, previously proposed and studied by the authors.  ...  Computer architecture of 3D volume visualization.  ... 
arXiv:2009.09500v1 fatcat:qn3pb2qg5ffrzeqmbhhgemfyry

Efficient visualization of volume data sets with region of interest and wavelets

Sebastien Piccand, Rita Noumeir, Eric Paquette, Robert L. Galloway, Jr., Kevin R. Cleary
2005 Medical Imaging 2005: Visualization, Image-Guided Procedures, and Display  
The structure of interest, a tumor or an organ for example, often occupies less than 10% of all the data.  ...  While greatly enhancing depth perception and objects shape, lighting does not add additional cost to the interactive visualization process, resulting in a good compromise between computational efficiency  ...  ACKNOWLEDGMENTS This research was funded by the Natural Sciences and Engineering Research Council of Canada.  ... 
doi:10.1117/12.596031 dblp:conf/miigp/PiccandNP05 fatcat:id53jlsc5be4dc7nwbtcfn37se

Visualization of Thermal Flows in an Automotive Cabin with Volume Rendering Method [article]

Kenji Ono, Hideki Matsumoto, Ryutaro Himeno
2001 EUROVIS 2005: Eurographics / IEEE VGTC Symposium on Visualization  
The computed temperature in an automotive cabin was visualized by volume rendering techniques using an RVSLIB software library developed by NEC.  ...  The visualization results indicate that the present system is capable to sufficiently predict the thermal environment in a vehicle cabin at early stage of vehicle development.  ...  Volume rendering techniques are employed by using the RVSLIB visualization system.  ... 
doi:10.2312/vissym/vissym01/301-308 fatcat:cbjpuhlonrduhen5vn6546xjj4

Development and initial evaluation of a semi-automatic approach to assess perivascular spaces on conventional magnetic resonance images

Xin Wang, Maria del C. Valdés Hernández, Fergus Doubal, Francesca M. Chappell, Rory J. Piper, Ian J. Deary, Joanna M. Wardlaw
2016 Journal of Neuroscience Methods  
Acknowledgements We thank the Chief Scientist Office for funding the acquisition of one the MRI datasets used on this study.  ...  Age UK and the UK Medical Research Council through The Lothian Birth Cohort 1936 Study funded the acquisition of one the MRI datasets used on this study.  ...  Comparison between BG PVS computational results (count & volume) and PVS visual rating scores In the baseline 100 cases, the median of BG PVS count was 10 and the median of BG PVS total volume was 0.093  ... 
doi:10.1016/j.jneumeth.2015.09.010 pmid:26416614 pmcid:PMC4666413 fatcat:uzq3x57xszbido6evwuyzd2she

إنشاء وحدات معالجة الرسومات للأغراض العامة ثلاثية الأبعاد لتصور الحجم في أنظمة الرسومات ثلاثية الأبعاد

أنس محمد العريقات أنس محمد العريقات
2020 journal of King Abdulaziz University Computing and Information Technology Sciences  
Computer architecture of 3D volume visualization.  ...  In [10] , the authors considered the representation of the general volume visualization theory, the basic 3D Graphics Primitive used for Volume Visualization, and a searching for a general algorithm for  ... 
doi:10.4197/comp.9-2.5 fatcat:dxoh5yh3xncobn6jdyvxrnxvke
« Previous Showing results 1 — 15 out of 981,258 results