The Hand Mouse: GMM Hand-Color Classication and Mean Shift Tracking

Authors:
Takeshi Kurata;Takashi Okuma;Masakatsu Kourogi;Katsuhiko Sakaue
Affiliations:
-;-;-;-
Venue:
RATFG-RTS '01 Proceedings of the IEEE ICCV Workshop on Recognition, Analysis, and Tracking of Faces and Gestures in Real-Time Systems (RATFG-RTS'01)
Year:
2001

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Abstract

Abstract: This paper describes an algorithm to detect and track A hand in each image taken by a wearable camera. We primarily use color information, however, instead of predefined skin-color models, we dynamically construct hand- and background-color models by using a Gaussian mixture model to approximate the color histogram. Not only to obtain the estimated mean of hand color necessary for the restricted EM algorithm that estimates the GMM but to classify hand pixels based on the Bayes decision theory, we use a spatial probability distribution of hand pixels. Because the static distribution is inadequate for the hand-tracking stage, we translate the distribution with the hand motion based on the mean shift algorithm. Using the proposed method, we implemented the Hand Mouse, that uses the wearer's hand as a pointing device, on our Wearable Vision System.