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Magic wand: a hand-drawn gesture input device in 3-D space with inertial sensors

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8 Author(s)
Sung-Jung Cho ; Samsung Adv. Inst. of Technol., Suwon, South Korea ; Jong Koo Oh ; Won-Chul Bang ; Wook Chang
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This paper presents a gesture input device, magic wand, with which a user can input gestures in 3-D space, inertial sensors embedded in it generate acceleration and angular velocity signals according to a user's hand movement. A trajectory estimation algorithm is employed to convert them into a trajectory on 2-D plane. The recognition algorithm based on Bayesian networks finds the gesture model with the maximum likelihood from it. The recognition performance of the proposed system is quite promising; the writer-independent recognition rate was 99.2% on average for the database of 15 writers and 13 gesture classes.

Published in:

Frontiers in Handwriting Recognition, 2004. IWFHR-9 2004. Ninth International Workshop on

Date of Conference:

26-29 Oct. 2004