Two-stage Recognition of Raw Acceleration Signals for 3-D Gesture-Understanding Cell Phones

Sung-Jung Cho 1 Eunseok Choi 1 Won-Chul Bang 1 Jing Yang 1 Junil Sohn 1 Dong Yoon Kim 1 Young-Bum Lee 1 Sangryong Kim 1
1 SAIT - Samsung Advanced Institute of Technology
Abstract : As many functionalities like cameras and MP3 players are converged to cell phones, more intuitive interaction methods are essential beyond tiny keypads. In this paper, we present gesture-based interactions and their two-stage recognition algorithm. Acceleration signals are generated from accelerometer. At the first stage, they are hierarchically modelled and matched as basic component and their relationships by Bayesian networks. At the second stage, they are further classified by SVMs for resolving confusing pairs. Our system showed enough recognition performance for commercialization; with 100 novice users, the average recognition rate was 96.9% on 11 gestures (digits 1-9, O, X). The algorithms have been adopted in the world-first gesture-recognizing Samsung cell phones since 2005.
Keywords : 3-D gesture recognition acceleration Bayesian networks support vector machines sensorbased interaction
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Communication dans un congrès
Guy Lorette. Tenth International Workshop on Frontiers in Handwriting Recognition, Oct 2006, La Baule (France), Suvisoft, 2006
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Sung-Jung Cho, Eunseok Choi, Won-Chul Bang, Jing Yang, Junil Sohn, et al.. Two-stage Recognition of Raw Acceleration Signals for 3-D Gesture-Understanding Cell Phones. Guy Lorette. Tenth International Workshop on Frontiers in Handwriting Recognition, Oct 2006, La Baule (France), Suvisoft, 2006. 〈inria-00103854〉

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