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18 篇 会议

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18 篇 电子文献
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检索条件"任意字段=27th ACM Conference on 3D Web Technology, Web3D 2022"

共 18 条记录，以下是11-20 订阅

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Evaluation of simplified 3d CAd data for conveying industrial assembly instructions via Augmented reality 22

Evaluation of simplified 3D CAD data for conveying industria...

引用

27th acm conference on 3d web technology, web3d 2022

作者： Arige, Abhaya dhathri Lavric, Traian Preda, Marius Zaharia, Titus Elm le Blanc Telecom SudParis France Telecom Sudparis France

ISBN: (纸本)9781450399142

Augmented Reality (AR) based training is gaining momentum in industrial sectors, particularly in assembly and maintenance. Generally, the media contents used to create AR assembly instructions include audio, video, images, text, signs, 3d data, and animations. Literature suggests that 3d CAd-based AR instructions spatially registered with the real-world environment are more effective and produce better training results. However, storing, processing, and rendering 3d data can be challenging even for state-of-the-art AR devices like HoloLens2, particularly in industrial usage. To overcome these concerns, heavy 3d models can be simplified to a certain extent with a minimal impact on the user experience, that is, the quality of visualization in AR. In the present paper, we evaluate the usability of a set of simplified 3d CAd models used to convey manual assembly information to novice operators. the experiment included 14 participants, six assembly operations, and two sets of 3d CAd models (i.e., originals and simplified) and was conducted in a laboratory setting. To simulate as much as possible a real-world assembly scenario, the components, and the original corresponding 3d CAd models were obtained from a real-world industrial setup. the present paper confirms that simplified 3d CAd models can replace the original 3d CAd models within AR applications without affecting the user experience with the help of subjective evaluations. © 2022 acm.

关键词： Augmented reality

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A Framework for Safe Execution of User-Uploaded Algorithms 22

A Framework for Safe Execution of User-Uploaded Algorithms

引用

27th acm conference on 3d web technology, web3d 2022

作者： Tan, Toni Weller, Rene Zachmann, Gabriel University of Bremen Germany

ISBN: (纸本)9781450399142

In recent years, a trend has existed for an open benchmark aiming for reproducible and comparable benchmarking results. the best reproducibility can be achieved when performing the benchmarks in the same hard- and software environment. this can be offered as a web service. One challenge of such a web service is the integration of new algorithms into the existing benchmarking tool due to security concerns. In this paper, we present a framework that allows the safe execution of user-uploaded algorithms in such a benchmark-as-a-service web tool. To guarantee security as well as reproducibility and comparability of the service, we extend an existing system architecture to allow the execution of user-uploaded algorithms in a virtualization environment. Our results show that although the results from the virtualization environment are slightly slower by around 3.7% to 4.7% compared with the native environment, the results are consistent across all scenarios with different algorithms, object shapes, and object complexity. Moreover, we have automated the entire process from turning on/off a virtual machine, starting benchmark with intended parameters to communicating with the backend server when the benchmark has finished. Our implementation is based on Microsoft Hyper-V that allows us to benchmark algorithms that use Single Instruction, Multiple data (SIMd) instruction sets as well as access to the Graphics Processing Unit (GPU). © 2022 acm.

关键词： web services

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Industrial Use Cases: 3d Connectivity for digital Twins decoupling 3d data utilization from delivery and file formats on an infrastructure level 22

Industrial Use Cases: 3D Connectivity for Digital Twins Deco...

引用

27th acm conference on 3d web technology, web3d 2022

作者： Stein, Christian Behr, Johannes Threedy GmbH Hessen Darmstadt Germany

ISBN: (纸本)9781450399142

With the rapidly growing size of 3d data sets as well as configuration complexity e.g., of assembly structures, the way to an enterprise-wide utilization of 3d product data is already a difficult one. While the 3d Master for engineering & manufacturing is rather established, availability of 3d data along the full value chain e.g., as part of the digital thread, and the ability to easily relate it to other business information is still a huge challenge. On top of this, digital Twins introduce the demand to dynamically link 3d data with IIoT, AI and other business information to visually bring such digital Twins to live or even into Mixed Reality applications, adding another level of complexity. Building on established web technology patterns, we experienced that an API-based harmonization over (brownfield) data backends and file formats can help to establish a "single source of truth"as a prerequisite for the required agile utilization of 3d data and highly flexible interconnectivity. Many solutions rely on explicitly exporting and preparing use case or application specific subsets of 3d data before making such available, often heavily limiting its utilization on the way. Instead, a high level of interconnectivity is achievable by combining a virtualization of 3d data and algorithms with a unified addressing scheme to abstract over file boundaries and formats while enabling dynamic resolution and mapping of contained 3d data elements with business information on many levels. In our talk, we will present the underlying approach and explain its utilization throughout several industrial use cases in the area of digital Twins with a focus on dynamic linkage and enrichment of 3d product data across software, solution and format boundaries. © 2022 acm.

关键词： data visualization

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Terrender: A web-Based Multi-Resolution Terrain Rendering Framework 22

Terrender: A Web-Based Multi-Resolution Terrain Rendering Fr...

引用

27th acm conference on 3d web technology, web3d 2022

作者： Croci, Julian A. Amiraghdam, Alireza Pajarola, Renato University of Zurich Zurich Switzerland

ISBN: (纸本)9781450399142

Terrain rendering is a fundamental requirement when visualizing 3d geographic data in various research, commercial or personal applications such as geographic information systems (GIS), 3d maps, simulators, and games. It entails handling large amounts of data for height and color as well as high-performance algorithms that can benefit from the parallel rendering power of GPUs. the main challenge is (1) to create a detailed renderable mesh using a fraction of the data that is most relevant to a specific camera position and orientation, and (2) to update this mesh in real time as the camera moves while keeping the transition artifacts low. Many algorithms have been proposed for adaptive adjustment of the level of detail (LOd) of large terrains. However, the existing web-based terrain rendering frameworks do not use state-of-the-art algorithms. As a result, these frameworks are prone to classic shortcomings of simpler terrain rendering algorithms such as discontinuities and limited visibility. We introduce a novel open-source web-based framework for rendering high quality terrains with adaptive LOd: Terrender. Terrender employs RASTeR, a modern LOd-based terrain rendering algorithm, while running smoothly with a limited bandwidth on all common web browsers, even on mobile devices. Finally, we present a thorough analysis of our system's performance when the camera moves on a predefined trajectory. We also compare its performance and visual quality to another well-known framework. © 2022 Owner/Author.

关键词： web browsers

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InstantXR: Instant XR Environment on the web Using Hybrid Rendering of Cloud-based NeRF with 3d Assets 22

InstantXR: Instant XR Environment on the Web Using Hybrid Re...

引用

27th acm conference on 3d web technology, web3d 2022

作者： Park, Moonsik Yoo, Byounghyun Moon, Jee Young Seo, Ji Hyun ESTsoft Corporation Korea Republic of Korea Institute of Science and Technology Korea Republic of University of Science and Technology Seoul Korea Republic of

ISBN: (纸本)9781450399142

For an XR environment to be used on a real-life task, it is crucial all the contents are created and delivered when we want, where we want, and most importantly, on time. To deliver an XR environment faster and correctly, the time spent on modeling should be considerably reduced or eliminated. In this paper, we propose a hybrid method that fuses the conventional method of rendering 3d assets with the Neural Radiance Fields (NeRF) technology, which uses photographs to create and display an instantly generated XR environment in real-time, without a modeling process. While NeRF can generate a relatively realistic space without human supervision, it has disadvantages owing to its high computational complexity. We propose a cloud-based distributed acceleration architecture to reduce computational latency. Furthermore, we implemented an XR streaming structure that can process the input from an XR device in real-time. Consequently, our proposed hybrid method for real-time XR generation using NeRF and 3d graphics is available for lightweight mobile XR clients, such as untethered HMds. the proposed technology makes it possible to quickly virtualize one location and deliver it to another remote location, thus making virtual sightseeing and remote collaboration more accessible to the public. the implementation of our proposed architecture along with the demo video is available at https://***/instantxr/. © 2022 Owner/Author.

关键词： HTTP

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REVISITING SHOEI YOH developing a workflow for a browser-based 3d model environment to create an immersive digital archive 27th

REVISITING SHOEI YOH Developing a workflow for a browser-bas...

引用

27th International conference of the Association for Computer-Aided Architectural design Research in Asia, CAAdRIA 2022

作者： Gardner, Nicole Haeusler, M. Hank Yu, daniel Barton, Jack dunn, Kate Huang, Tracy UNSW / Computational Design UNSW GRID UNSW

ISBN: (纸本)9789887891772

the digitisation of architecturally significant buildings and sites creates opportunities to innovate methods of analysis, interpretation, representation, and audience engagement. To illustrate this potential, but also examine the attendant challenges, this paper outlines a research project that has digitised archival assets and living buildings designed by the Japanese architect Shoei Yoh to create an immersive 3d Spatial Archive. It focuses particularly on the creation of a browser-based 3d environment using webGL technology that connects to and displays a repository of digitised archival assets. this includes the use of 3d scan data of Yoh's Naiju Community Centre project to accurately model the 3d immersive environment and a Grasshopper / Rhino into the glTF. File format (graphics library Transmission Format) workflow to render Naiju’s complex geometry and detailed outdoor scenery. the paper demonstrates how using the .glTF File, which is an open format specifically for transmitting processed and pre-calculated 3d models, can improve the processing efficiency of web-browser based 3d environments. Improving the stability and processing speed of 3d browser-based environments is significant to enhancing how audiences can connect with and experience culturally significant sites remotely. the digital recreation and repurposing of Naiju (which is currently unoccupied and in a state of disrepair) as an immersive archival exhibition space operates to simultaneously protect the real building from over visitation, but also raise awareness of its cultural significance to support preservation efforts. In so doing, the paper makes a further contribution to the developing field of digital cultural heritage. © 2022, the Association for Computer-Aided Architectural design Research in Asia. All rights reserved.

关键词： 3d modeling

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Interactive Exhibition of Human Meridian Based on Cult3d

Interactive Exhibition of Human Meridian Based on Cult3D

引用

Annual International conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： Chen Liu Zhihong Chen Guotai Jiang Hao Wang School of Life Science and Technology University of Tongji Shanghai China

Acupuncture is the kernel of traditional Chinese medicine and is nowadays being accepted by the whole world. the precise orientation of the points and meridian is important in acupuncture while it is difficult to be done via the 2-dimension pictures. So the 3d interactive exhibition is undoubtedly superior to the traditional 2d way. A web3d technology Cult3d and its advantages in contrast to VRML are presented. the implementation process of interactive human point exhibition by using Cult3d is discussed in detail. A primary attempt of expressing the knowledge system of meridian more intuitionisticly is made