Papers

Session chair Takeshi Kurata, University of Tokyo, Japan. 5 papers.

Online at https://web3d.siggraph.org/archive/web3d2020/event/papers-session-5

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Improved methods for applying 3D web-based visualization at various scales is a recurring theme of papers presented in this session of the Web3D 2020 Conference. The first paper proposes a technique for exchanging geometry in manufacturing between Product Lifecycle Management (PLM) applications, which give a global view of product data from design to disposal, with the more detailed data driving and created during production through a Manufacturing Execution System (MES). A second paper dives down to the smallest length scales currently accessible to science, offering X3D-based solutions for making the instruments and results of research into nuclear structure available to scientists and non-specialists, using 3D visualizations delivered in a virtual reality system. Virtual reality is also a topic for the third paper, which presents the results of an empirical study into the effect of exaggerating physical features and gestures of the avatars — representations of human characters — in virtual reality. Planned and deliberate bending of realism in visualization is shown to be potentially useful. The fourth paper again looks to improving the effectiveness of avatars in the practical application of virtual conferencing, through a system architecture which supports multiple interacting avatars. Our fifth paper is an empirical study of the communication effectiveness of enhancing 2D visualizations of large data sets using depth cues, visual features that the human vision sense can use to generate a mental 3D image; without the data requirements that can make a pure 3D visualization unfeasible for large data sets.

a. Web-based Visualization of Product Data and Feedback between PLM and MES

• Tahir Jauhar, University of Gujrat
• Mutahar Safdar, Korea STEP Center
• Imgyu Kim, KAIST
• Soonhung Han, KAIST

b. Nuclear Femtography on the Web with X3D

• Nicholas Polys, Virginia Tech (VT)
• David Heddle, Christopher Newport University
• Volker Burkert, Jefferson National Lab
• Francois-Xavier Girod, Jefferson National Lab
• Latifa Elouadrhiri, Jefferson National Lab

c. Effects of Gestural Exaggeration to User Experience in Virtual Reality

• Jiwon Oh, Korea University
• Gerard Kim, Korea University

d. DeepCinema: Adding Depth with X3D Image-Based Rendering

• Jooyoung Whang, Virginia Tech (VT)
• Nicholas Polys, Virginia Tech (VT)

e. System Architecture for Supporting Multiple Live Actors in Web3D Virtual Conference

• Hok Tin, Chungbuk National University
• Chan Park, KIS Corporation
• Kwan-Hee Yoo, Chungbuk National University

Session chair Kwan-Hee Yoo, Chungbuk National University. 4 papers.
Online at https://web3d.siggraph.org/archive/web3d2020/event/papers-session-4

Web3D provides convenient and pervasive online 3D visualization. While the computing and caching capability of Web browsers lags in comparison to offline 3D platforms, 3D Web content is growing and visual effects are improving. Four papers in this session illustrate these trends.  The first paper presents an unified representation of WebXR content to synthesize real space and virtual space. The second paper explores how to visualize evacuation behaviors of large-scale virtual crowds, an important real-world safety challenge. The third paper enhances rendering effects for scanned 3D data by suppressing shading of the reference model. The fourth paper brings high-fidelity computational sound into X3D scenes through audio graphs and  acoustic properties. Each of these research efforts extend both content capabilities and audiovisual effects of Web3D/WebVR/WebXR.

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a. Unified Representation for XR content and its Rendering Method

• Yongjae Lee, Korea Institute of Science and Technology (KIST), Seoul Korea
• Changhyun Moon, Korea Institute of Science and Technology (KIST), Seoul Korea
• Heedong Ko, Korea Institute of Science and Technology (KIST), Seoul Korea
• Soo-Hong Lee, Yonsei University, Seoul Korea
• Byounghyun Yoo, Korea Institute of Science and Technology (KIST), Seoul Korea

b. Towards Web3D-based Lightweight Crowd Evacuation Simulation

• Xue Piao, Tongji University
• Yang Li, Tongji University
• Kang Xie, Tongji University
• Hantao Zhao, Southeast University, Nanjing China
• Jinyuan Jia, Tongji University, Shanghai China

c. Research on Suppressing Shading from 3D Scanned Data using a Scanned Reference Model

• Hwanyong Lee, Ajou University
• Seungjun Lee, Ajou University

d. Extending X3D Realism with Audio Graphs, Acoustic Properties and 3D Spatial Sound

• Efi Lakka, University of South Wales
• Don Brutzman, Naval Postgraduate School (NPS)
• Richard Puk, Intelligraphics Inc.
• Athanasios Malamos, Hellenic Mediterranean University, Crete