Efficient jitter compensation using double exponential smoothing

Authors:
Min Gyo Chung;Sang-Kyun Kim
Affiliations:
Dept. of Computer Science, Seoul Women's University, Seoul 139-774, South Korea;Dept. of Computer Engineering, Myongji University, Gyeonggido 449-728, South Korea
Venue:
Information Sciences: an International Journal
Year:
2013

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Abstract

This paper proposes a new jitter reduction scheme based on double exponential smoothing (DES). We compare this DES-based method to jitter reduction methods based on the Kalman filter (KF) and extended Kalman filter (EKF), two well-known methods of jitter reduction. To evaluate the jitter reduction performance, we used a laser pointer interaction system with a known problem with jittery laser spot movements caused by natural hand tremors. We show that the DES-based scheme runs approximately 100 times faster than the EKF-based method and 19 times faster than the KF-based method. Furthermore, in terms of jitter reduction, the proposed DES-based method yields approximately 18% better results than the EKF-based method and 20% better results than the KF-based method.