119,179 Hits in 9.5 sec

Shadow Generation in Mixed Reality: A Comprehensive Survey

Hoshang Kolivand, Alhajhamad Hasan Zakaria, Mohd Shahrizal Sunar
2014 IETE Technical Review  
This paper aims to provide researchers with a solid background on the stateof-the-art implementation of shadows in mixed reality.  ...  Thus, this could make it easier to choose the most appropriate method to achieve the aims.  ...  In this project a fast shadowing method is presented for virtual objects. The method creates shadows using a set of basic images rendered in advance.  ... 
doi:10.1080/02564602.2014.906860 fatcat:kc4l5kaowbcfpdgm7iw44nxety

Real-Time Rendering of Point Clouds With Photorealistic Effects: A Survey

Petrus E. J. Kivi, Markku J. Makitalo, Jakub Zadnik, Julius Ikkala, Vinod Kumar Malamal Vadakital, Pekka O. Jaaskelainen
2022 IEEE Access  
A categorization and discussion on the capabilities of state-of-the-art photorealistic point cloud rendering methods is presented by surveying both real-time and offline methods, which are assumed to become  ...  Challenges and future trends are derived by comparing different rasterization and ray tracing methods as well as acceleration structures for point clouds in terms of produced rendering effects and speed  ...  Thus, the motivation behind this survey is the availability of methods specifically for direct real-time photorealistic rendering for surface point clouds.  ... 
doi:10.1109/access.2022.3146768 fatcat:ahyee25xargufc536j5kfrtniy

Higher Dimensional Vector Field Visualization: A Survey [article]

Zhenmin Peng, Robert S. Laramee
2009 Computer Graphics and Visual Computing  
We present a survey of higher-spatial dimensional flow visualization techniques based on the presumption that little work remains for the case of two-dimensional flow whereas many challenges still remain  ...  The reader is provided with a high-level overview of research in the field highlighting both solved and unsolved problems in this rapidly evolving direction of research.  ...  Second, slice-based direct volume rendering is applied to compute volume illumination.  ... 
doi:10.2312/localchapterevents/tpcg/tpcg09/149-163 dblp:conf/tpcg/PengL09 fatcat:wiktpxrp2vhtjmxj2ntmirtcfq

Application of 3D Electrical Resistivity Tomography for Diagnosing Leakage in Earth Rock-Fill Dam

Xin Zhang, Mingjie Zhao, Kui Wang, Pan Liu, Huan Liu
2016 Engineering  
tomography detecting technology and volume rendering image processing technology, make the measurement in field, process the data and combine the field survey to find out the leakage channels inside the  ...  The leakage occurs during operation of the dam in Liuhuanggou reservoir. It's a threat to the safety of the people's lives and property in downstream.  ...  Acknowledgements This paper is funded by National Natural Science Foundation of China (51279219).  ... 
doi:10.4236/eng.2016.85023 fatcat:oqmo7elsardixabenbmlyv5fba

3D Reconstruction of Face from 2D CT Scan Images

T.Senthil Kumar, Anupa Vijai
2012 Procedia Engineering  
The paper presents a survey on different 3D reconstruction approaches and draws conclusions for analysing the suitable approach for a specific range of application.  ...  3D reconstruction of face is one of the advancements in physical modeling techniques which uses engineering methods in the field of medicine.The systems in development propose a software tool that will  ...  Acknowledgement The authors thank Dr Sherry Peter and Dr G N K Kamath of Amrita School Of Medicine, Cochin for the help and guidance provided by them for the entire work.  ... 
doi:10.1016/j.proeng.2012.01.952 fatcat:q5zkyktxszfqng7inh4zv6ujje

A Survey of Compressed GPU-Based Direct Volume Rendering [article]

Marcos Balsa Rodríguez, Enrico Gobbetti, José A. Iglesias Guitián, Maxim Makhinya, Fabio Marton, Renato Pajarola, Susanne K. Suter
2012 Eurographics State of the Art Reports  
Great advancements in commodity graphics hardware have favored GPU-based volume rendering as the main adopted solution for interactive exploration of rectilinear scalar volumes on commodity platforms.  ...  To address this issue, a variety of level-of-detail data representations and compression techniques have been introduced.  ...  to a projection of the volume in a direction perpendicular to the slice.  ... 
doi:10.2312/conf/eg2013/stars/117-136 fatcat:3cadb2miwngrjoaqmrmudww6lq

The Ultrasound Visualization Pipeline - A Survey [article]

Åsmund Birkeland, Veronika Solteszova, Dieter Hönigmann, Odd Helge Gilja, Svein Brekke, Timo Ropinski, Ivan Viola
2012 arXiv   pre-print
, segmentation, registration, rendering and augmented reality.  ...  To provide an insight into the trends of ultrasound visualization research, we have selected a set of significant publications and divided them into a technique-based taxonomy covering the topics pre-processing  ...  In color Doppler imaging the commonly used red-to-blue color transfer function encodes direction and velocity of flow, whereas a variety of predefined color maps is in use for B-mode volume rendering.  ... 
arXiv:1206.3975v1 fatcat:v6kskbqhargfxlwz7wyeqae6wu

Towards Advanced Volumetric Display of the Human Musculoskeletal System [article]

Marco Agus, Andrea Giachetti, Enrico Gobbetti, José Antonio Iglesias Guitián, Fabio Marton
2008 Smart Tools and Applications in Graphics  
Our volume rendering approach employs GPU accelerated out-of-core direct rendering algorithms to fully support high resolution, 16 bits, raw medical datasets as well as segmentation.  ...  Images can be presented on a special light field display based on projection technology.  ...  We refer the reader to the recent book of Engel et al. for a recent survey [EHK * 06]. Furthermore, the out-of-core organization of massive volumetric data into a volume octree is a classic problem.  ... 
doi:10.2312/localchapterevents/italchap/italianchapconf2008/021-025 dblp:conf/egItaly/AgusGGGM08 fatcat:n5lpaciyhfci5gixwvlln322lm

Sonar Explorer: A New Tool for Visualization of Fish Schools from 3D Sonar Data [article]

Jean-Paul Balabanian, Ivan Viola, Egil Ona, Ruben Patel, Eduard Groeller
2007 EUROVIS 2005: Eurographics / IEEE VGTC Symposium on Visualization  
We present a novel framework for analysis and visualization of fish schools in 3D sonar surveys. The 3D sonar technology is new and there have not been applications to visualize the data in 3D.  ...  We present techniques to deal with 3D sonar data specifics: highly anisotropic volume data aligned on a curvilinear grid. Domain scientists provide initial impressions on interaction and outlook.  ...  Acknowledgments We thank Rolf Korneliussen for the data, Stefan Bruckner for helping with the GPU raycaster, and Torsten Möller for many interesting discussions.  ... 
doi:10.2312/vissym/eurovis07/155-162 fatcat:6tdxgcdiufaw3iipmfnqqpksve

Interpretation advances in noisy data areas

Andrew S. Long
2004 ASEG Extended Abstracts  
tools) is a direct complement to the growth of high-density 3D acquisition methods.  ...  As one example, Figure 1 demonstrates how the rendering of results from 3D ray tracing (based upon actual acquisition information) onto interpreted surfaces can provide a direct appreciation of the link  ... 
doi:10.1071/aseg2004ab093 fatcat:cgycv6ettndabnwwjhc2iqr6ea

Texture Mapping Volume Objects [article]

P. Shen, P. Willis
2005 International Conference on Vision, Video and Graphics  
We present a combination of image-based texture mapping and projective space (pseudo-solid) texture. This imagebased texture mapping is useful for objects defined from volume datasets.  ...  The proposed approach leads to superior quality of texture and thus provides an optional solution for texturing volume objects.The results show the effectiveness and quality of rendered images.  ...  the volume object. given the volume object (1) in 3D space, using a volume rendering (Direct Volume Rendering or Direct Surface Rendering [Jon99] ) technique, we project this volume object onto a plenoptic  ... 
doi:10.2312/vvg.20051006 dblp:conf/vvg/ShenW05 fatcat:63ys72a5bfhidg5yk7dfjxglvq

MicroRNAs in lipid metabolism

Carlos Fernández-Hernando, Yajaira Suárez, Katey J Rayner, Kathryn J Moore
2011 Current Opinion in Lipidology  
This review summarizes the evidence for a critical role of miRNAs in regulating lipid metabolism. Lipid metabolism is tightly regulated at the cellular level.  ...  These new findings may open new avenues for the treatment of dyslipidemias.  ...  Second, slice-based direct volume rendering is applied to compute volume illumination.  ... 
doi:10.1097/mol.0b013e3283428d9d pmid:21178770 pmcid:PMC3096067 fatcat:lubmprgykzgnvj5el5vf4q5b7m

State-of-the-Art in Compressed GPU-Based Direct Volume Rendering

M. Balsa Rodríguez, E. Gobbetti, J.A. Iglesias Guitián, M. Makhinya, F. Marton, R. Pajarola, S.K. Suter
2014 Computer graphics forum (Print)  
Abstract Great advancements in commodity graphics hardware have favored GPU-based volume rendering as the main adopted solution for interactive exploration of rectilinear scalar volumes on commodity platforms  ...  To address this issue, a variety of level-of-detail data representations and compression techniques have been introduced.  ...  (GOLEM), the Forschungskredit of the University of Zürich, a Swiss National Science Foundation (SNSF) grant (project n • 200021_132521), and Sardinian Regional Authorities.  ... 
doi:10.1111/cgf.12280 fatcat:3stzgmtlw5hwtk6zxiz4kaep6m

Visualization of adaptive mesh refinement data

Gunther H. Weber, Hans Hagen, Bernd Hamann, Kenneth I. Joy, Terry J. Ligocki, Kwan-Liu Ma, John M. Shalf, Robert F. Erbacher, Philip C. Chen, Jonathan C. Roberts, Craig M. Wittenbrink, Matti Grohn
2001 Visual Data Exploration and Analysis VIII  
We present methods for direct volume rendering of AMR data. Our methods utilize AMR grids directly for efficiency of the visualization process.  ...  We also present a cell-projection-based rendering technique for AMR data.  ...  We thank the members of the LBNL Visualization Group; the LBNL Applied Numerical Algorithms Group; the Visualization and Graphics Research Group at the Center for Image Processing and Integrated Computing  ... 
doi:10.1117/12.424922 fatcat:4juy6wi6pzcffhkk6fuqawrlda

Visualization and Analysis of the Volume Dataset for Time-Varing Electromagnetic Simulation

Jingxuan Shao, Ge Tian, Jing Han, Liang Chang, Yi Cao, Yanlin Luo
2020 Chinese journal of electronics  
We proposed a real-time dynamic rendering method using Compute unified device architecture (CUDA)-based volume rendering algorithm.  ...  We designed the opacity transfer function as multiple trapezoid, which represents each energy band, and provided a fusion strategy for a horn-like surface and a EM volume model that considers the contribution  ...  In order to achieve our goal, we chose Direct volume rendering (DVR) technique for three Dimensional (3D) visualization. DVR is a common 3D scalar field visualization method.  ... 
doi:10.1049/cje.2020.08.014 fatcat:xzmddgwmxfaybkbuby2uymtfi4
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