TY - GEN
T1 - Can magnetic field sensors replace gyroscopes in wearable sensing applications?
AU - Kunze, Kai
AU - Bahle, Gernot
AU - Lukowicz, Paul
AU - Partridge, Kurt
PY - 2010/12/1
Y1 - 2010/12/1
N2 - We investigate if and how magnetic sensors can be used to replace gyroscopes in wearable activity recognition. The work is motivated by (1) sensor configurations typically found in smart phones where magnetic sensors are used to complement GPS position with orientation and (2) the fact that gyroscopes are an important source of information for activity recognition. We propose a method to compute angular velocity from 3D magnetic sensor data and discuss its fundamental limitations. We present an elaborate evaluation of the accuracy on 5 previously published data set with a total of nearly 20 hours of data from 15 users with activities ranging from bicycle repair, through homemaking to gym exercise.
AB - We investigate if and how magnetic sensors can be used to replace gyroscopes in wearable activity recognition. The work is motivated by (1) sensor configurations typically found in smart phones where magnetic sensors are used to complement GPS position with orientation and (2) the fact that gyroscopes are an important source of information for activity recognition. We propose a method to compute angular velocity from 3D magnetic sensor data and discuss its fundamental limitations. We present an elaborate evaluation of the accuracy on 5 previously published data set with a total of nearly 20 hours of data from 15 users with activities ranging from bicycle repair, through homemaking to gym exercise.
UR - http://www.scopus.com/inward/record.url?scp=78651389445&partnerID=8YFLogxK
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U2 - 10.1109/ISWC.2010.5665859
DO - 10.1109/ISWC.2010.5665859
M3 - Conference contribution
AN - SCOPUS:78651389445
SN - 9781424490448
T3 - Proceedings - International Symposium on Wearable Computers, ISWC
BT - International Symposium on Wearable Computers 2010, ISWC 2010
T2 - 14th IEEE International Symposium on Wearable Computers, ISWC 2010
Y2 - 10 October 2010 through 13 October 2010
ER -