uWave: Accelerometer-based personalized gesture recognition and its applications

The proliferation of accelerometers on consumer electronics has brought an opportunity for interaction based on gestures. We present uWave, an efficient recognition algorithm for such interaction using a single three-axis accelerometer. uWave requires a single training sample for each gesture patter...

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Bibliographic Details
Published inPervasive and mobile computing Vol. 5; no. 6; pp. 657 - 675
Main Authors Liu, Jiayang, Zhong, Lin, Wickramasuriya, Jehan, Vasudevan, Venu
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2009
Subjects
Acceleration
Dynamic time warping
Gesture recognition
Personalized gesture
User authentication
Personalized gesture
User authentication
Acceleration
Dynamic time warping
Gesture recognition
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Summary:The proliferation of accelerometers on consumer electronics has brought an opportunity for interaction based on gestures. We present uWave, an efficient recognition algorithm for such interaction using a single three-axis accelerometer. uWave requires a single training sample for each gesture pattern and allows users to employ personalized gestures. We evaluate uWave using a large gesture library with over 4000 samples for eight gesture patterns collected from eight users over one month. uWave achieves 98.6% accuracy, competitive with statistical methods that require significantly more training samples. We also present applications of uWave in gesture-based user authentication and interaction with 3D mobile user interfaces. In particular, we report a series of user studies that evaluates the feasibility and usability of lightweight user authentication. Our evaluation shows both the strength and limitations of gesture-based user authentication.
ISSN:1574-1192
1873-1589
DOI:10.1016/j.pmcj.2009.07.007