NDLI: Augmented reality using spatially multiplexed structured light

Content Provider	IEEE Xplore Digital Library
Author	Torres, M. Jassel, R. Ying Tang
Copyright Year	2012
Description	Author affiliation: Electrical and Computer Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ 08028, USA (Torres, M.; Jassel, R.; Ying Tang)
Abstract	Augmented reality (AR) superimposes computer-generated 3-D graphics or 2-D information on the user's view of a surrounding environment in real-time, enhancing the user's perception of the real world. Typical AR systems either use fiducial markers or information about an object in the scene for AR tracking. The former, called marker-based AR, requires artificial markers be placed in the scene to be tracked by the system. When applied to mobile applications, these markers clutter the small view in the mobile device. Often times in the latter method, markerless AR, there is a requirement for offline training of some sort making it unsuitable for unprepared environments. In applications which do not have these requirements, such as structure from motion (SFM) approaches, there can still be the requirement of an initial reference object in the application. Based on these remarks, this research focuses on markerless AR in mobile applications and proposes a tracking method using structured light (SL). The proposed architecture consists of a three-stage process. In the first stage, invariant feature tracking methods are implemented to track real regions between successive video frames. Spatially multiplexed SL, involving projecting a known active image onto a scene, is used to extract 3D range data from a captured image in the second stage. The final stage utilizes the captured 3D data and tracking information to impose AR activities into the live video.
Starting Page	385
Ending Page	390
File Size	878980
Page Count	6
File Format	PDF
ISBN	9781467316439
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-28
Publisher Place	New Zealand
Access Restriction	Subscribed
Rights Holder	AUT University
Subject Keyword	Invariant Feature Tracking Augmented Reality Vectors Simple DirectMedia Layer Substrates Equations Markerless AR Image color analysis Cameras Feature extraction Skeleton Structured Light 3D Triangulation
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

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