Recognition of Two-Hand Gestures Using Coupled Switching Linear Model

Mun-Ho JEONG  Yoshinori KUNO  Nobutaka SHIMADA  Yoshiaki SHIRAI  

IEICE TRANSACTIONS on Information and Systems   Vol.E86-D   No.8   pp.1416-1425
Publication Date: 2003/08/01
Online ISSN: 
Print ISSN: 0916-8532
Type of Manuscript: PAPER
Category: Image Processing, Image Pattern Recognition
gesture recognition,  EM algorithm,  coupling,  switching linear model,  

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We present a method for recognition of two-hand gestures. Two-hand gestures include fine-grain descriptions of hands under a complicated background, and have complex dynamic behaviors. Hence, assuming that two-hand gestures are an interacting process of two hands whose shapes and motions are described by switching linear dynamics, we propose a coupled switching linear dynamic model to capture interactions between both hands. The parameters of the model are learned via EM algorithm using approximate computations. Recognition is performed by selection of the model with maximum likelihood out of a few learned models during tracking. We confirmed the effectiveness of the proposed model in tracking and recognition of two-hand gestures through some experiments.