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Visualizing Vector Fields Using Line Integral Convolution And Dye Advection
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Book Synopsis Visualizing Vector Fields Using Line Integral Convolution and Dye Advection by : Han-Wei Shen
Download or read book Visualizing Vector Fields Using Line Integral Convolution and Dye Advection written by Han-Wei Shen and published by . This book was released on 1996 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "We present local and global techniques to visualize three-dimensional vector field data. Using the Line Integral Convolution (LIC) method to image the global vector field, our new algorithm allows the user to introduce colored 'dye' into the vector field to highlight local flow features. A fast algorithm is proposed that quickly recomputes the dyed LIC images. In addition, we introduce volume rendering methods that can map the LIC texture on any contour surface and/or translucent region defined by additional scalar quantities, and can follow the advection of colored dye throughout the volume."
Book Synopsis Visualization and Analysis of Vector Field Simulation Data by : Yangguang Liao
Download or read book Visualization and Analysis of Vector Field Simulation Data written by Yangguang Liao and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A fundamental challenge for visualizing vector fields is that the complexity of the field causes structural and depth perception obstacles, which impede transmitting information accurately and effectively. In fluid dynamics, there is a long history of focusing on how to visualize the flow as a way to understand it. The line integral convolution (LIC) method is frequently used to visualize two-dimensional (2D) data but has rarely been used in three-dimensional (3D) scenes. To address the demand of applying 3D LIC in scientific flow visualization, my dissertation introduces a new solution to visualize a particularly challenging data type: large-scale simulation of the flow fields in planetary cores and the resultant magnetic fields. Geodynamo theory is able to describe the flow motion in a planet's liquid core, which generates the planetary magnetic field. Numerical simulations make it possible to explore and understand planetary magnetism by producing high-resolution vector field data. A good visualization of the model output is essential to understand the geodynamo process. Motivated by this multi-dimensional flow field visualization challenge and the demands of comprehending geodynamo simulations, a LIC-based visualization method is introduced to depict vector fields as a form of volumetric representation. Developed through the collaboration between visualization and domain scientists, this application is motivated by both actual domain usage and the need for technical improvement. To address the need for highly efficient and scalable parallel flow visualization methods, I developed a flow visualization system for large unstructured simulation data using parallel 3D LIC. The main consideration for a parallel LIC implementation is a trade-off between the additional memory cost of replicating cells at sub-domain boundaries, or the communication cost of exchanging those data among computation nodes. To improve scalability, A load-balancing scheme is introduced that partitions datasets based on estimated LIC computation time. I also introduce a data-driven sub-domain extension scheme that determines which external cells at a sub-domain boundary need to be added based on current boundary cells. This new scheme reduces memory overhead because the same visual quality can be achieved with a significantly smaller number of replicated external cells. In my dissertation, I evaluate and conclude that the new parallel 3D LIC visualization method is an efficient and scalable approach to the visualization of large and complex 3D vector fields. To solve the challenging issues of occlusion and overlapping caused by 3D LIC visualization, I introduce a progressive visualization in an immersive environment. The new virtual reality based visualization can help to address the structural problem in 3D visualization. In my dissertation, I define a new progressive visualization experience by using an innovative 3D brush tool for interaction to help users locate and extract targeted information quickly. This new 3D LIC visualization provides flexibility to apply varying parameters on the same data domain. By using this new LIC brush tool, experienced users are able to locate target features efficiently by reducing interfering information.
Book Synopsis Visualization Handbook by : Charles D. Hansen
Download or read book Visualization Handbook written by Charles D. Hansen and published by Elsevier. This book was released on 2011-08-30 with total page 1061 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Visualization Handbook provides an overview of the field of visualization by presenting the basic concepts, providing a snapshot of current visualization software systems, and examining research topics that are advancing the field. This text is intended for a broad audience, including not only the visualization expert seeking advanced methods to solve a particular problem, but also the novice looking for general background information on visualization topics. The largest collection of state-of-the-art visualization research yet gathered in a single volume, this book includes articles by a “who’s who of international scientific visualization researchers covering every aspect of the discipline, including:· Virtual environments for visualization· Basic visualization algorithms· Large-scale data visualization· Scalar data isosurface methods· Visualization software and frameworks· Scalar data volume rendering· Perceptual issues in visualization· Various application topics, including information visualization. * Edited by two of the best known people in the world on the subject; chapter authors are authoritative experts in their own fields;* Covers a wide range of topics, in 47 chapters, representing the state-of-the-art of scientific visualization.
Book Synopsis Mathematical Visualization by : H.-C. Hege
Download or read book Mathematical Visualization written by H.-C. Hege and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical Visualization is a young new discipline. It offers efficient visualization tools to the classical subjects of mathematics, and applies mathematical techniques to problems in computer graphics and scientific visualization. Originally, it started in the interdisciplinary area of differential geometry, numerical mathematics, and computer graphics. In recent years, the methods developed have found important applications. The current volume is the quintessence of an international workshop in September 1997 in Berlin, focusing on recent developments in this emerging area. Experts present selected research work on new algorithms for visualization problems, describe the application and experiments in geometry, and develop new numerical or computer graphical techniques.
Book Synopsis Transparent Line Integral Convolution by : Alexander Petrov Petkov
Download or read book Transparent Line Integral Convolution written by Alexander Petrov Petkov and published by . This book was released on 2005 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis GPU-Based Interactive Visualization Techniques by : Daniel Weiskopf
Download or read book GPU-Based Interactive Visualization Techniques written by Daniel Weiskopf and published by Springer Science & Business Media. This book was released on 2006-10-13 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents efficient visualization techniques, a prerequisite for the interactive exploration of complex data sets. High performance is demonstrated as a process of devising algorithms for the fast graphics processing units (GPUs) of modern graphics hardware. Coverage includes parallelization on cluster computers with several GPUs, adaptive rendering methods, and non-photorealistic rendering techniques for visualization.
Book Synopsis Visualization in Scientific Computing ’97 by : Wilfrid Lefer
Download or read book Visualization in Scientific Computing ’97 written by Wilfrid Lefer and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visualization is now recognized as a powerful approach to get insight in large datasets produced by scientific experimentations and simulations. The contributions to this book cover technical aspects as well as concrete applications of visualization in various domains such as finance, physics, astronomy and medicine, providing researchers and engineers with valuable information for setting up new powerful environments.
Book Synopsis Dynamic Line Integral Convolution for Visualizing Electromagnetic Phenomena by : Andreas Sundquist
Download or read book Dynamic Line Integral Convolution for Visualizing Electromagnetic Phenomena written by Andreas Sundquist and published by . This book was released on 2001 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vision, Modeling, and Visualization 2000 by : Bernd Girod
Download or read book Vision, Modeling, and Visualization 2000 written by Bernd Girod and published by IOS Press. This book was released on 2000 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Strategies for Effectively Visualizing a 3D Flow Using Volume Line Integral Convolution by : Victoria L. Interrante
Download or read book Strategies for Effectively Visualizing a 3D Flow Using Volume Line Integral Convolution written by Victoria L. Interrante and published by . This book was released on 1997 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper discusses strategies for effectively portraying 3D flow using volume line integral convolution. Issues include defining an appropriate input texture, clarifying the distinct identities and relative depths of the advected texture elements, and selectively highlighting regions of interest in both the input and output volumes. A part from offering insights into the greater potential of 3D LIC as a method for effectively representing flow in a volume, a principal contribution of this work is the suggestion of a technique for generating and rendering 3D visibility-impeding 'halos' that can help to intuitively indicate the presence of depth discontinuities between contiguous elements in a projection and thereby clarify the 3D spatial organization of elements in the flow. The proposed techniques are applied to the visualization of a hot, supersonic, laminar jet exiting into a colder, subsonic coflow.
Book Synopsis Computational Science and Its Applications - ICCSA 2004 by : Antonio Laganà
Download or read book Computational Science and Its Applications - ICCSA 2004 written by Antonio Laganà and published by Springer. This book was released on 2004-04-29 with total page 1081 pages. Available in PDF, EPUB and Kindle. Book excerpt: The natural mission of Computational Science is to tackle all sorts of human problems and to work out intelligent automata aimed at alleviating the b- den of working out suitable tools for solving complex problems. For this reason ComputationalScience,thoughoriginatingfromtheneedtosolvethemostch- lenging problems in science and engineering (computational science is the key player in the ?ght to gain fundamental advances in astronomy, biology, che- stry, environmental science, physics and several other scienti?c and engineering disciplines) is increasingly turning its attention to all ?elds of human activity. In all activities, in fact, intensive computation, information handling, kn- ledge synthesis, the use of ad-hoc devices, etc. increasingly need to be exploited and coordinated regardless of the location of both the users and the (various and heterogeneous) computing platforms. As a result the key to understanding the explosive growth of this discipline lies in two adjectives that more and more appropriately refer to Computational Science and its applications: interoperable and ubiquitous. Numerous examples of ubiquitous and interoperable tools and applicationsaregiveninthepresentfourLNCSvolumescontainingthecontri- tions delivered at the 2004 International Conference on Computational Science and its Applications (ICCSA 2004) held in Assisi, Italy, May 14–17, 2004.
Book Synopsis Handbook of Computer Aided Geometric Design by : G. Farin
Download or read book Handbook of Computer Aided Geometric Design written by G. Farin and published by Elsevier. This book was released on 2002-08-13 with total page 849 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive coverage of the fields Geometric Modeling, Computer-Aided Design, and Scientific Visualization, or Computer-Aided Geometric Design. Leading international experts have contributed, thus creating a one-of-a-kind collection of authoritative articles. There are chapters outlining basic theory in tutorial style, as well as application-oriented articles. Aspects which are covered include: Historical outline Curve and surface methods Scientific Visualization Implicit methods Reverse engineering. This book is meant to be a reference text for researchers in the field as well as an introduction to graduate students wishing to get some exposure to this subject.
Book Synopsis High Performance Computing by : Mateo Valero
Download or read book High Performance Computing written by Mateo Valero and published by Springer. This book was released on 2003-06-29 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: I wish to welcome all of you to the International Symposium on High Perf- mance Computing 2000 (ISHPC 2000) in the megalopolis of Tokyo. After having two great successes with ISHPC’97 (Fukuoka, November 1997) and ISHPC’99 (Kyoto, May 1999), many people have requested that the symposium would be held in the capital of Japan and we have agreed. I am very pleased to serve as Conference Chair at a time when high p- formance computing (HPC) has a signi?cant in?uence on computer science and technology. In particular, HPC has had and will continue to have a signi?cant - pact on the advanced technologies of the “IT” revolution. The many conferences and symposiums that are held on the subject around the world are an indication of the importance of this area and the interest of the research community. One of the goals of this symposium is to provide a forum for the discussion of all aspects of HPC (from system architecture to real applications) in a more informal and personal fashion. Today we are delighted to have this symposium, which includes excellent invited talks, tutorials and workshops, as well as high quality technical papers.
Book Synopsis Visualization and Data Analysis by :
Download or read book Visualization and Data Analysis written by and published by . This book was released on 2006 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Imaging Vector Fields Using Line Integral Convolution by :
Download or read book Imaging Vector Fields Using Line Integral Convolution written by and published by . This book was released on 1993 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Imaging vector fields has applications in science, art, image processing and special effects. An effective new approach is to use linear and curvilinear filtering techniques to locally blur textures along a vector field. This approach builds on several previous texture generation and filtering techniques. It is, however, unique because it is local, one-dimensional and independent of any predefined geometry or texture. The technique is general and capable of imaging arbitrary two- and three-dimensional vector fields. The local one-dimensional nature of the algorithm lends itself to highly parallel and efficient implementations. Furthermore, the curvilinear filter is capable of rendering detail on very intricate vector fields. Combining this technique with other rendering and image processing techniques -- like periodic motion filtering -- results in richly informative and striking images. The technique can also produce novel special effects.
Book Synopsis Mathematical Foundations of Scientific Visualization, Computer Graphics, and Massive Data Exploration by : Torsten Möller
Download or read book Mathematical Foundations of Scientific Visualization, Computer Graphics, and Massive Data Exploration written by Torsten Möller and published by Springer Science & Business Media. This book was released on 2009-06-12 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of visualization is the accurate, interactive, and intuitive presentation of data. Complex numerical simulations, high-resolution imaging devices and incre- ingly common environment-embedded sensors are the primary generators of m- sive data sets. Being able to derive scienti?c insight from data increasingly depends on having mathematical and perceptual models to provide the necessary foundation for effective data analysis and comprehension. The peer-reviewed state-of-the-art research papers included in this book focus on continuous data models, such as is common in medical imaging or computational modeling. From the viewpoint of a visualization scientist, we typically collaborate with an application scientist or engineer who needs to visually explore or study an object which is given by a set of sample points, which originally may or may not have been connected by a mesh. At some point, one generally employs low-order piecewise polynomial approximationsof an object, using one or several dependent functions. In order to have an understanding of a higher-dimensional geometrical “object” or function, ef?cient algorithms supporting real-time analysis and manipulation (- tation, zooming) are needed. Often, the data represents 3D or even time-varying 3D phenomena (such as medical data), and the access to different layers (slices) and structures (the underlying topology) comprising such data is needed.
Book Synopsis Advances in Visual Computing by : George Bebis
Download or read book Advances in Visual Computing written by George Bebis and published by Springer. This book was released on 2013-10-15 with total page 793 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two volume sets LNCS 8033 and 8034 constitutes the refereed proceedings of the 9th International Symposium on Visual Computing, ISVC 2013, held in Rethymnon, Crete, Greece, in July 2013. The 63 revised full papers and 35 poster papers presented together with 32 special track papers were carefully reviewed and selected from more than 220 submissions. The papers are organized in topical sections: Part I (LNCS 8033) comprises computational bioimaging; computer graphics; motion, tracking and recognition; segmentation; visualization; 3D mapping, modeling and surface reconstruction; feature extraction, matching and recognition; sparse methods for computer vision, graphics and medical imaging; face processing and recognition. Part II (LNCS 8034) comprises topics such as visualization; visual computing with multimodal data streams; visual computing in digital cultural heritage; intelligent environments: algorithms and applications; applications; virtual reality.
