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检索条件"任意字段=26th ACM International Conferenceon 3D Web Technology, Web3D 2021"

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Proceedingsweb3d 2021 26th acm international conferenceon 3d web technology

Proceedings - Web3D 2021: 26th ACM International Conference ...

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Proceedings - web3d 2021: 26th acm international Conference on 3d web technology 2021年

作者： Ganovelli, Fabio Mc donald, Carol Banterle, Francesco Potenziani, Marco Callieri, Marco Jung, Yvonne ISTI-CNR Italy Gneiss Concept United States Hochschule Fulda Germany

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Proceedings - web3d 2021: 26th acm international Conference on 3d web technology

Proceedings - Web3D 2021: 26th ACM International Conference ...

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26th acm international conferenceon 3d web technology, web3d 2021

ISBN: (纸本)9781450390958

the proceedings contain 15 papers. the topics discussed include: solid and effective upper limb segmentation in egocentric vision;interactive volumetric region growing for brain tumor segmentation on MRI using webGL;a platform for developing and fine tuning adaptive 3d navigation techniques for the immersive web;sharing ambient objects using real-time point cloud streaming in web-based XR remote collaboration;supporting web-based collaboration for construction site monitoring;Resurrect3d: an open and customizable platform for visualizing and analyzing cultural heritage artifacts;how long do you want to maintain this thing? understanding the challenges faced by webXR creators;in Ersilia’s footsteps: toward an interactive webGL application for exploring the Villa Romana del Casale at Piazza Armerina, Sicily;and archaeological publication systems: which route to take? a compass for addressing future development.

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Invisible Heritage - Analysis and technology digital Platform 21

Invisible Heritage - Analysis and Technology Digital Platfor...

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26th acm international Conference on 3d web technology (web3d)

作者： Abate, dante Toumbas, Kyriakos Faka, Marina Cyprus Inst Sci & Technol Archaeol & Culture Res Ctr Nicosia Cyprus

ISBN: (纸本)9781450390958

the Invisible Heritage - Analysis and technology (IH-AT) project aimed to design and develop a portal comprised of reliable and efficient technology-ready tools for the visualization, documentation, and analysis of the UNESCO listed churches in the Troodos area of Cyprus applying geophysics, 3d modeling techniques, and visualization methods, supported by art-historical and archaeological research.

关键词： 3d Models JavaScript UNESCO Cyprus

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Archaeological Publication Systems: Which route to take? A compass for addressing future development 21

Archaeological Publication Systems: Which route to take? A c...

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26th acm international Conference on 3d web technology (web3d)

作者： derudas, Paola Lund Univ Dept Archaeol & Ancient Hist Lund Sweden

ISBN: (纸本)9781450390958

the recent diffusion of new formats of archaeological publication systems results from ad hoc solutions conceived and realized for serving specific communication needs. these new formats are customized for facilitating the fruition of specific archaeological information and can be tailored and structured for hosting datasets and results. Unlike standard publications, they do not represent the final result of the investigation but rather a dynamic public space in which different interpretations can be revised and formulated. A review of the available online publication systems for Culture Heritage, with a focus on the publication systems the author worked with, can help define their potential advantages and flaws and steer the design and development of further advancements.

关键词： Archaeological publication systems online 3d data Content Management Systems

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A platform for developing and fine tuning adaptive 3d navigation techniques for the immersive web 21

A platform for developing and fine tuning adaptive 3D naviga...

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26th acm international Conference on 3d web technology (web3d)

作者： Kamal, Ahmed Andujar, Carlos Univ Politecn Cataluna Barcelona Spain

ISBN: (纸本)9781450390958

Navigating through a virtual environment is one of the major user tasks in the 3d web. Although hundreds of interaction techniques have been proposed to navigate through 3d scenes in desktop, mobile and VR headset systems, 3d navigation still poses a high entry barrier for many potential users. In this paper we discuss the design and implementation of a test platform to facilitate the creation and fine-tuning of interaction techniques for 3d navigation. We support the most common navigation metaphors (walking, flying, teleportation). the key idea is to let developers specify, at runtime, the exact mapping between user actions and virtual camera changes, for any of the supported metaphors. We demonstrate through many examples how this method can be used to adapt the navigation techniques to various people including persons with no previous 3d navigation skills, elderly people, and people with disabilities.

关键词： virtual reality webXR navigation 3d interaction techniques immersive web

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X3d Field Trips for Remote Learning 21

X3D Field Trips for Remote Learning

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26th acm international Conference on 3d web technology (web3d)

作者： Polys, Nicholas F. Munsell, John Meaney, Kathleen Addlestone, Benjamin Virginia Tech Adv Res Comp Blacksburg VA 24061 USA Virginia Tech Forest Resources & Environm Conservat Blacksburg VA USA Virginia Tech Sch Visual Arts Blacksburg VA USA

ISBN: (纸本)9781450390958

Combinations of immersive media and graphic portrayals can enable the human subjective sense of Presence. this paper collects our experiences and evaluations from six projects that use Extensible 3d (X3d) interactive graphics to deliver spatial experiences across the WWW. X3d enables the combination of spherical panoramas with 3d models and maps to visually transport users to a specific real location at a specific time. Remote users have access to these worlds through a web-browser or other immersive device;local users in a CAVE can collaborate with natural physical gestures;. We reflect on the graphical and interactive requirements of these projects and provide guidance for future applications. In the face of physical lock-downs and distancing due to the CoVId pandemic, such platforms illustrate the opportunities and challenges in the design and delivery of spatial visualizations, especially for remote learning.

关键词： Online courseware 360-degree photography Spherical Panoramas Extensible 3d

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Supporting web-based Collaboration for Construction Site Monitoring 21

Supporting Web-based Collaboration for Construction Site Mon...

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26th acm international Conference on 3d web technology (web3d)

作者： dietze, Andreas Grimm, Paul Jung, Yvonne Fulda Univ Appl Sci D-36037 Fulda Germany Darmstadt Univ Appl Sci D-64295 Darmstadt Germany

ISBN: (纸本)9781450390958

deviations from the original blueprints could often be found on building sites. To easily identify such constructional modifications, this paper proposes a smart digital twin for construction site monitoring that supports web-based collaboration with external experts to discuss possibly required solutions to this problem. therefore, a system pipeline was designed that allows automatic detection and visualization of deviations between real and planning data. In addition, the pipeline allows generating an interactive difference visualization that uses the original planning data as well as the 3d scanned real data. the latter is recorded using an AR-capable mobile device or headset like the Microsoft HoloLens, whereas the mentioned differences are obtained via a point-cloud-based algorithm. the differences between real and planning data are then emphasized on the respective client, which uses X3-dOM for visualization. Besides the server part of the pipeline, the application consists of several clients that enable a collaborative discussion between the various stakeholders, such as an AR-based mobile viewer for the craftsman on site and a web-based viewer for the building owner at home or the architect.

关键词： 3d Geometry Comparison Geometry deviation Feedback web-based difference Visualization Collaborative Construction Site Monitoring Mobile Mixed Reality

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Resurrect3d: An Open and Customizable Platform for Visualizing and Analyzing Cultural Heritage Artifacts 21

Resurrect3D: An Open and Customizable Platform for Visualizi...

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26th acm international Conference on 3d web technology (web3d)

作者： Romphf, Joshua Neuman-donihue, Elias Heyworth, Gregory Zhu, Yuhao Univ Rochester Digital Scholarship River Campus Libs Rochester NY 14627 USA Univ Rochester Dept Comp Sci Dept Hist Rochester NY USA Univ Rochester Dept English Rochester NY USA Univ Rochester Dept Comp Sci Rochester NY USA

ISBN: (纸本)9781450390958

Art and culture, at their best, lie in the act of discovery and exploration. this paper describes Resurrect3d, an open visualization platform for both casual users and domain experts to explore cultural artifacts. To that end, Resurrect3d takes two steps. First, it provides an interactive cultural heritage toolbox, providing not only commonly used tools in cultural heritage such as relighting and material editing, but also the ability for users to create an interactive "story": a saved session with annotations and visualizations others can later replay. Second, Resurrect3d exposes a set of programming interfaces to extend the toolbox. domain experts can develop custom tools that perform artifact-specific visualization and analysis.

关键词： Visualization

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VIA: Visibility-aware web-based Virtual Reality 21

VIA: Visibility-aware Web-based Virtual Reality

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26th acm international Conference on 3d web technology (web3d)

作者： Slocum, Carter Huang, Jingwen Chen, Jiasi Univ Calif Riverside Riverside CA 92521 USA

ISBN: (纸本)9781450390958

New standards such as webXR enable cross-platform VR experiences, relying on the ubiquity of the modern web browser. However, upon measuring performance of webXR scenes, we found users can suffer from high latency while waiting for all 3d objects appear in their field-of-view. this is because storage and fetching of 3d objects in webXR (and its underlying webGL libraries) are agnostic to the user's orientation and location, leading to latency issues. Specifically, fetching of texture files in arbitrary order results in 3d objects waiting on their texture dependencies, and the storage of all objects' geometry data in one large file blocks individual objects from rendering even if their texture dependencies are satisfied. To address these issues, we propose a systematic prioritization of which 3d objects and their dependencies should be fetched first, based on the user's position and orientation in the VR scene. To improve efficiency, the geometry data belonging to each 3d object are optimally grouped together to minimize the average latency. Our experiments with various webXR scenes under different network conditions show that our scheme can significantly reduce the time to all 3d objects appearing in the user's field-of-view, by up to 50%, compared the default webXR behavior.

关键词： Virtual reality page load time webXR

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X3d Audio Graph for the consistent declarative representation of the W3C Audio API 21

X3D Audio Graph for the consistent declarative representatio...

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26th acm international Conference on 3d web technology (web3d)

作者： Lakka, Eftychia Papadaki, Maria Brutzman, don Puk, Richard Malamos, Athanasios G. Univ South Wales Fac Comp Engn & Sci Cardiff Wales Hellenic Mediterranean Univ Iraklion Greece Naval Postgrad Sch NPS Monterey CA USA Intelligraphics Inc Austin TX USA

ISBN: (纸本)9781450390958

Modeling of sound propagation is very important for virtual acoustics and virtual reality applications. For that reason, highly advanced computer models for the prediction of sound fields in rooms have already been proposed. However, most of them are complex and require a skilled acoustician to use them effectively. In other words, there is a need for simpler models that are accurate and quick to use, but most importantly should provide a simpler syntax with a hierarchical structure that makes it easy to map user actions to audio parameters. this paper aims to integrating acoustic properties associated with geometric shapes together with 3d spatial sound in the X3d Graphics standard, by exploiting the structure and functionality of web Audio API, using the audio graph model in order to simplify the development of audio applications. Examples for evaluation lead to useful conclusions and areas for future model development.

关键词： Spatial sound X3d 3d sound 3d scene 3d modeling auralization acoustic properties virtual environments W3C web Audio API audio graph

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