Página 4 dos resultados de 79 itens digitais encontrados em 0.001 segundos

Composing behaviors and swapping bodies with motion capture data in X3D

Weekley, Jeffrey D.; Blais, Curtis L.; Brutzman, Don
Fonte: ACM Publicador: ACM
Tipo: Artigo de Revista Científica
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The article of record as published may be located at http://dx.doi.org/10.1145/1229390.1229427; This paper describes current work in the evolution of open standards for 3D graphics for Humanoid Animation (H-Anim). It builds on previous work to encompass plausible humanoids, humanoid behaviors and methodologies for composition with interchangeable and blended behaviors. We present an overview of the standardization activites for H-Anim, including a proposed extension for the H-Anim Specification which allows for interchangable actors and dynamic behaviors. We demonstrate a standards-based approach to the complex work flow and data extraction for 3D optical motion tracking systems. We describe how to archive, annotate and treansform the whole body and segmented performance data so that they can be used more widely and with less effort. The approach is compressible, streamable, scaleable, repeatable and suitable for large-scale training and analysis, entertainment and games.

The Autonomous Unmanned Vehicle Workbench: Mission Planning, Mission Rehearsal, and Mission Replay Tool for Physics-based X3D Visualization

Davis, Duane; Brutzman, Don
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Tipo: NPS AUV Workbench: Papers
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14th International Symposium on Unmanned Untethered Submersible Technology (UUST), Autonomous Undersea Systems Institute (AUSI), Durham New Hampshire, 21-24 August 2005

Web-based 3D Graphics Rendering of Dynamic Deformation Structures in Large-Scale Distributed Simulations

Brutzman, Donald P.
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
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This report describes related AUV technical capabilities: XMSF, XSBC, FEC, X3D, and Real-Time System

XML Schema-based Binary Compression (XSBC) and Forward Error Correction (FEC) Functionality for AUV Workbench Mission File Archiving

Norbraten, Terry
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
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This report describes related AUV technical capabilities: XMSF, XSBC, FEC, X3D, and Real-Time System

Extensible 3D (X3D) Graphics: Scene Design for Autonomous Underwater Vehicle (AUV) Mission Visualization

Roussille, Frederic
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
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This report has been produced by visiting fifth-year engineering students in support of NPS AUV research.

Extensible Modeling & Simulation Framework (XMSF). XMSF 2002 Findings and Recommendations Report: Technical Challenges Workshop and Strategic Opportunities Symposium

Don Brutzman; Mike Zyda; Mark Pullen; Katherine L. Morse
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
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This report describes related AUV technical capabilities: XMSF, XSBC, FEC, X3D, and Real-Time System

Sonar visualization

Fonte: Monterey, California, Naval Postgraduate School Publicador: Monterey, California, Naval Postgraduate School
Tipo: Poster
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Poster promoting the X3D real-time analysis with recursive ray robots available from MOVES.

eCOArt, realidade virtual na educação : a história da arte e design através de percursos e desafios virtuais

Fernandes, José Manuel Fialho
Fonte: Universidade Aberta de Portugal Publicador: Universidade Aberta de Portugal
Tipo: Dissertação de Mestrado
Publicado em //2015 Português
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Dissertação de Mestrado em Comunicação Educacional Multimédia apresentada à Universidade Aberta; Esta investigação debruçou-se na análise, conceção e avaliação de um protótipo de ambientes virtuais 3D aplicados à exploração temática Artes e Design sob a forma de um ambiente virtual com percursos pedagógicos, atividades e desafios lúdicos.; This research dealt with the analysis, design and evaluation of a prototype 3D virtual environment applied to thematic exploration of Arts and Design in the form of a virtual environment with pedagogical paths, activities and recreational challenges.

Modeling, simulation, and visualization for submarine transit security and Coast Guard contingency Preparedness

Heron, Marlon
Fonte: Monterey, California: Naval Postgraduate School Publicador: Monterey, California: Naval Postgraduate School
Tipo: Tese de Doutorado
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Approved for public release; distribution is unlimited; Includes supplemental material. Please contact rresources@nps.edu for access.; The U.S. Navy’s Strategic Systems Program (SSP) and the U.S. Coast Guard (USCG) Maritime Force Protection Unit (MFPU) have a close working relationship, access to advanced Modeling and Simulation (M&S) tools, and a mutual interest in the safe escort of naval submarines. The USCG Contingency Preparedness and Exercises (CPE) Branch has a strong interest in maritime security, which extends to the safe navigation of vessels in U.S. territorial waters, including naval submarines. CPE rarely interacts with SSP and the MFPU; further, CPE does not have access to modern M&S tools. The goal of this thesis is to demonstrate that SSP and MFPU can greatly increase maritime security in the littoral waterways used by submarines and other naval vessels by partnering with CPE. A mixed method approach was used to provide an overview of existing maritime security roles and partnerships, and a 3D-simulation experiment was also developed to demonstrate how CPE can enhance exercises by utilizing robust 3D M&S resources. This thesis establishes that CPE can drastically improve maritime security and other missions by leveraging M&S and Visualization tools. The thesis also found that by partnering with SSP and the MFPU...

X3D Graphics and Distributed Interactive Simulation (DIS) Networking

Brutzman, Don
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Tipo: Conferência ou Objeto de Conferência
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Gas flows and star formation as a consequence of galaxy interaction in compact groups

Vogt, Frédéric Paul André
Fonte: Universidade Nacional da Austrália Publicador: Universidade Nacional da Austrália
Tipo: Thesis (PhD)
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The environment of galaxies is known to influence their evolution via a wide range of processes, such as tidal interactions, ram-pressure stripping, or galaxy harassment. However, the exact interconnectivity between the large scale environment-driven mechanisms and the other internal processes (starburst, star formation quenching, nuclear activity, and both outflows and inflows) remains poorly understood. This thesis describes the use of the WiFeS and MUSE integral field spectrographs to study gas flows and star formation activity inside two members of compact groups of galaxies: HCG 16c and HCG 91c. In particular, WiFeS and MUSE are used to resolve scales of 1 kpc at the distances of HCG 16c and HCG 91c - the size of giant molecular clouds and HII regions - in an effort to tie the environment to its impact within the disks of the galaxies. HCG 16c is found to host an asymmetric, bipolar, rotating galactic wind, powered by a nuclear starburst. Emission line ratio diagnostics indicate that photoionization is the dominant excitation mechanism at the base of the wind. The asymmetry of the wind is likely caused by one of the two lobes of the wind-blown bubble bursting out of its HI envelope. The characteristics of the wind suggest that it is caught early (a few Myr) in the wind evolution sequence. The wind is also quite different to the galactic wind in the partner galaxy HCG 16d which contains a symmetric...

A dynamic three-dimensional network visualization program for integration into cyberciege and other network visualization scenarios

Coomes, Donald E.
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado Formato: xvi, 117 p. : ill. (chiefly col.) ;
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Detailed information and intellectual understanding of a network's topology and vulnerabilities is invaluable to better securing computer networks. Network protocol analyzers and intrusion detection systems can provide this additional information. In particular, game-based trainers, such as CyberCIEGE, have been shown to improve the level of training and understanding of network security professionals. This thesis' objective is to enhance these applications by developing NTAV3D, or, Network Topology and Attack Visualizer (Three Dimensional). NTAV3D is a tool that displays network topology, vulnerabilities, and attacks in an interactive, three dimensional environment. This augments the design and gameplay of CyberCIEGE by increasing gameplayer interaction and data display. Additionally, NTAV3D can be expanded to provide this capability to network analysis and intrusion detection tools. Furthermore, NTAV3D expands on ideas and results from related work of the best ways to visualize network topology, vulnerabilities, and attacks. NTAV3D was created using open-source software technologies including Xj3D, X3D, Java, and XML. It is also one of the first applications to be built with only the Xj3D toolkit. Therefore, the development process allowed evaluation of these technologies...

Efficient XML Interchange: Compact, Efficient, and Standards-Based XML

Snyder, Sheldon; McGregor, Don; Brutzman, Don
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Tipo: Trabalho em Andamento
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Documents include Paper and Presentation.; Simulation Interoperability Standards Organization (SISO) SIW Conference Paper; XML has become a popular representation format for data, both in modeling and simulation and elsewhere. However, XML's design choice of a text-based format also makes XML data files much larger than binary files, making XML languages difficult to use in bandwidth-constrained military applications. This limitation has resulted in several ad-hoc attempts to make XML more compact, each of which tends to be incompatible with the other. Efficient XML Interchange (EXI) is a World Wide Web Consortium (W3C) Working Draft for the compact and efficient representation of the XML infoset. EXI is designed to be generally applicable to all XML documents, and lays the foundation for a unified format for compact XML document representation. This paper presents compactness results for several popular modeling and simulation XML file formats, including Distributed Interactive Simulation (DIS), Scalable Vector Graphics (SVG) and Extensible 3D Graphics (X3D). Recent commercial and open source EXI implementations are also described.; Naval Postgraduate School, Monterey, CA.

Tactical web services using XML and Java web services to conduct real-time net-centric sonar visulization

Rosetti, Scott
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado Formato: xx, 227 p. : ill. (some col.) ;
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Approved for public release, distribution unlimited; With the unveiling of ForceNet, the Navy's architectural framework for how naval warfare is to be conducted in the information age, much of the technological focus has been placed on Web technology. One of the most promising technologies is Web services. Web services provide for a standard way to move and share data more reliably, securely, and quickly. The capabilities imbedded in Extensible Markup Language (XML) and Simple Object Access Protocol (SOAP) can merge previously disparate systems into one integrated environment. Already proven successful in the administrative realm, wide-area networks such as the Secure Internet Protocol Network (SIPRNET) have become secure and reliable enough to pass data between systems and units to support tactical operations. The Modeling, Virtual Environments and Simulation (MOVES) Institute at the Naval Postgraduate School is currently working to extend these precepts into the modeling and simulation world under the Extensible Modeling and Simulation Framework (XMSF) project. By leveraging existing Web service technology, warfighters at the "tip of the spear" can have access to previously unrealized amounts of tactically-relevant data, analysis...

Improving Maritime Prepositioning Force (MPF) offloads using modeling and simulation

Thomas, Brandon K.
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado Formato: xxiv, 89 p. : ill. (chiefly col.) ;
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The Marine Corps' Maritime Prepositioning Force (MPF) marries fly-in troops to their gear in an expeditionary environment. The arrival and assembly operation underneath this larger umbrella of MPF Operations proves itself a somewhat chaotic, definitively complex and dynamic logistics operation. From the moment the offload of the ship or ships begins when equipment and rolling stock exit the ships, until it ends as using units sign for their intended equipment, all personnel involved in this process--drivers, assistant drivers, heavy equipment handlers, crane operators, equipment managers--and all equipment involved present a flurry of activity that must be effectively managed, tracked, and optimized. Modeling, Virtual Environments, and Simulation, or MOVES, tools, aid in providing such capability. The creation of a Discrete Event Simulation (DES) using the open-source tool Viskit enables MPF planning, training, and analysis in its ability to portray the effects that size, amount of personnel support, and time have on the operation. Scenario Authoring and Visualization for Advanced Graphical Environments (Savage) comprises an archive of extensible three dimensional (3D) models that, when tied to the DES in an Extensible 3D (X3D) Graphics environment...

Model-driven development of interactive and integrated 2D and 3D user interfaces using MML

Pleuss, Andreas; Gracanin, Denis; Zhang, Xiaoyu
Fonte: Association for Computing Machinery Publicador: Association for Computing Machinery
Tipo: Conference item; all_ul_research; ul_published_reviewed; none
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non-peer-reviewed; While there is a lot of research done in the area of 2D or 3D user interfaces (UIs) construction, comparatively little is known about systematic approaches to designing and developing integrated 2D/3D UIs and applications. The previously developed multimedia modeling language (MML) provides a top down approach for a model driven development of 2D/3D UIs and applications. The MML structure model and media components provide support for including X3D based content and automatic generation of application skeletons. We use a work instruction manual for a woodchipper as an example to illustrate how to apply MML. We discuss the ramifications of this approach and opportunities for some improvements.

Intra-site Level Cultural Heritage Documentation: Combination of Survey, Modeling and Imagery Data in a Web Information System

Durand, Anne; Drap, Pierre; Meyer, Elise; Grussenmeyer, Pierre; Perrin, Jean-Pierre
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 08/11/2006 Português
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Cultural heritage documentation induces the use of computerized techniques to manage and preserve the information produced. Geographical information systems have proved their potentialities in this scope, but they are not always adapted for the management of features at the scale of a particular archaeological site. Moreover, computer applications in archaeology are often technology driven and software constrained. Thus, we propose a tool that tries to avoid these difficulties. We are developing an information system that works over the Internet and that is joined with a web site. Aims are to assist the work of archaeological sites managers and to be a documentation tool about these sites, dedicated to everyone. We devote therefore our system both to the professionals who are in charge of the site, and to the general public who visits it or who wants to have information on it. The system permits to do exploratory analyses of the data, especially at spatial and temporal levels. We propose to record metadata about the archaeological features in XML and to access these features through interactive 2D and 3D representations, and through queries systems (keywords and images). The 2D images, photos, or vectors are generated in SVG, while 3D models are generated in X3D. Archaeological features are also automatically integrated in a MySQL database. The web site is an exchange platform with the information system and is written in PHP. Our first application case is the medieval castle of Vianden...

SOLIS Vector Spectromagnetograph: status and science

Henney, C. J.; Keller, C. U.; Harvey, J. W.; Georgoulis, M. K.; Hadder, N. L.; Norton, A. A.; Raouafi, N. -E.; Toussaint, R. M.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 28/12/2007 Português
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The Vector Spectromagnetograph (VSM) instrument has been recording photospheric and chromospheric magnetograms daily since August 2003. Full-disk photospheric vector magnetograms are observed at least weekly and, since November 2006, area-scans of active regions daily. Quick-look vector magnetic images, plus X3D and FITS formated files, are now publicly available daily. In the near future, Milne-Eddington inversion parameter data will also be available and a typical observing day will include three full-disk photospheric vector magnetograms. Besides full-disk observations, the VSM is capable of high temporal cadence area-scans of both the photosphere and chromosphere. Carrington rotation and daily synoptic maps are also available from the photospheric magnetograms and coronal hole estimate images.; Comment: 4 pages, 2 figures, Solar Polarimetry Workshop 5, PASP

Web-based 3-D theatre seating charts and ticket reservation application

Henstebeck, Patrick
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Masters Project Formato: 439552 bytes; 144564 bytes; application/pdf; application/pdf
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Seating charts for theatres and stadia have always been an important part of buying tickets to a staged event, despite offering little information about the view from any particular seat. While the internet has increased the potential to provide this information, most official arena websites and online ticket brokers still only provide the standard two-dimensional diagram whose detail is limited to the approximate location of each section and which offers no guidance as to the height or slope of the section, nor any warning of any obstructing objects that would depreciate a seat s true value. The few three-dimensional models that exist in this area are the product of a large investment of time and resources that may not be available to small and mid-level arena owners. This project provides an application that can transform a simple XML file consisting mostly of a listing of the seating rows in the arena into a threedimensional world that can model the view of a staging area from every seat in the house. This application can model a wide range of theatres and includes a seat reservation system to provide an easy way for users to intelligently purchase tickets.