NDLI: Orient-2: a realtime wireless posture tracking system using local orientation estimation

Content Provider	ACM Digital Library
Author	Ling, M. J. Young, A. D. Arvind, D. K.
Abstract	A realtime posture tracking system has been developed using a network of compact wireless sensor devices worn by the user. Each device is a complete inertial/magnetic tracking unit which performs in situ orientation estimation based on its own sensor readings, using a complementary quaternion-based filter. Compared to existing systems which transmit raw sensor data to a PC for processing, it is shown that this technique reduces bandwidth requirements by 79% for typical usage. In combination with a time division multiple access scheme, this reduction allows for full-body tracking using 15 devices at a 64Hz update rate through a single 250kbps receiver. The data is applied to a rigid body model of the subject to provide a realtime display, and can be exported for use in major animation packages.
Starting Page	53
Ending Page	57
Page Count	5
File Format	PDF
ISBN	9781595936943
DOI	10.1145/1278972.1278986
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2007-06-25
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Wireless sensor network Motion tracking Orientation estimation
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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Orient-2: a realtime wireless posture tracking system using local orientation estimation