DocumentCode
3415588
Title
Which Way Am I Facing: Inferring Horizontal Device Orientation from an Accelerometer Signal
Author
Kunze, Kai ; Lukowicz, Paul ; Partridge, Kurt ; Begole, Bo
Author_Institution
Embedded Syst. Lab., Univ. Passau, Passau, Germany
fYear
2009
fDate
4-7 Sept. 2009
Firstpage
149
Lastpage
150
Abstract
We present a method to infer the orientation of mobile device carried in a pocket from the acceleration signal acquired when the user is walking. Whereas previous work has shown how to determine the the orientation in the vertical plane (angle towards earth gravity), we demonstrate how to compute the orientation within the horizontal plane. To validate our method we compare the output of our method with GPS heading information when walking in a straight line. On a total of 16 different orientations and traces we have a mean difference of 5 degrees with 2.5 degrees standard deviation.
Keywords
accelerometers; mobile handsets; accelerometer signal; horizontal device orientation; mobile phone; Acceleration; Accelerometers; Embedded system; Gravity; Legged locomotion; Mobile computing; Principal component analysis; Testing; Torso; Wearable computers;
fLanguage
English
Publisher
ieee
Conference_Titel
Wearable Computers, 2009. ISWC '09. International Symposium on
Conference_Location
Linz
ISSN
1550-4816
Print_ISBN
978-0-7695-3779-5
Type
conf
DOI
10.1109/ISWC.2009.33
Filename
5254664
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