NDLI: Web-based virtual walkthrough of panoramas

Content Provider	IEEE Xplore Digital Library
Author	Gen-Yuan Zhang Lei Zhao
Copyright Year	2009
Description	Author affiliation: The Department of Computer Science and Technology of Zhejiang University (Lei Zhao) \|\| Zhejiang University of Media and Communications, Hangzhou, P.R. China (Gen-Yuan Zhang)
Abstract	Recent advances in Internet and WWW techniques motivate desire for systems with interactive 3D graphics on the web, which draws attention and effectively assist human understanding with spatial intuitiveness and interactivity. Web-based application with virtual environment walkthrough capability is expected to have a profound impact to the travel based applications, such as virtual e-commerce, online travelling and shopping, just to name a few. However, it is well known that it is extremely difficult to render complex 3D scenes at interactive frame rates through the web known for their lack of proper ability needed to process large volume of 3D virtual environment data. In order to provide virtual environment navigation on the web, we propose a hybrid technique which combines both remote geometry rendering and image compression transportation technique. In our approach, the server renders a partial panoramic view, which is based on the user's viewpoint and last movements or sends image from real life. The server then compress images, and streams the images to the client device, which will progressively build the panoramic representation of the scene. Furthermore, in order to enhance streaming performance and quality of the interaction, we propose to use a prediction of the user's movements as well as a rate control mechanism within the virtual scene. In this paper we discuss our scheme for web-based remote rendering and streaming of progressive panoramas. Our results indicate clearly that the proposed solution is able to achieve stable frame rates and throughput in general network environment.
Starting Page	233
Ending Page	237
File Size	326035
Page Count	5
File Format	PDF
ISBN	9781424446148
DOI	10.1109/NDT.2009.5272064
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-28
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Graphics Image coding Virtual environment Navigation Layout Humans Streaming media Rendering (computer graphics) World Wide Web Internet
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in