期刊
PERVASIVE AND MOBILE COMPUTING
卷 5, 期 6, 页码 657-675出版社
ELSEVIER
DOI: 10.1016/j.pmcj.2009.07.007
关键词
Gesture recognition; Acceleration; Dynamic time warping; Personalized gesture; User authentication
资金
- NSF [CNS/CSR-EHS 0720825, IIS/HCC 0713249]
- Motorola Labs
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. (C) 2009 Elsevier B.V. All rights reserved.
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