NDLI: Distributed visual processing for augmented reality

Content Provider	IEEE Xplore Digital Library
Author	Yii, W. Wai Ho Li Drummond, T.
Copyright Year	2012
Description	Author affiliation: Monash University, Australia (Yii, W.; Wai Ho Li; Drummond, T.)
Abstract	Recent advances have made augmented reality on smartphones possible but these applications are still constrained by the limited computational power available. This paper presents a system which combines smartphones with networked infrastructure and fixed sensors and shows how these elements can be combined to deliver real-time augmented reality. A key feature of this framework is the asymmetric nature of the distributed computing environment. Smartphones have high bandwidth video cameras but limited computational ability. Our system connects multiple smartphones through relatively low bandwidth network links to a server with large computational resources connected to fixed sensors that observe the environment. By contrast to other systems that use preprocessed static models or markers, our system has the ability to rapidly build dynamic models of the environment on the fly at frame rate. We achieve this by processing data from a Microsoft Kinect, to build a trackable point cloud model of each frame. The smartphones process their video camera data on-board to extract their own set of compact and efficient feature descriptors which are sent via WiFi to a server. The server runs computationally intensive algorithms including feature matching, pose estimation and occlusion testing for each smartphone. Our system demonstrates real-time performance for two smartphones.
Starting Page	41
Ending Page	48
File Size	9781612
Page Count	8
File Format	PDF
ISBN	9781467346603
e-ISBN	9781467346627
e-ISBN	9781467346610
DOI	10.1109/ISMAR.2012.6402536
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Smart phones Cameras Servers Sensors Augmented reality Visualization Hip
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
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