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JACIII Vol.16 No.6 pp. 687-695
doi: 10.20965/jaciii.2012.p0687
(2012)

Paper:

A Combined Method Based on SVM and Online Learning with HOG for Hand Shape Recognition

Kazutaka Shimada, Ryosuke Muto, and Tsutomu Endo

Department of Artificial Intelligence, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka, Fukuoka 820-8502, Japan

Received:
January 16, 2012
Accepted:
June 20, 2012
Published:
September 20, 2012
Keywords:
hand shape recognition, SVMs, online learning, HOG, combination
Abstract

In this paper, we propose a combined method for hand shape recognition. It consists of Support Vector Machines (SVMs) and an online learning algorithm based on the perceptron. We apply HOG features to each method. First, our method estimates the hand shape of an input image by using SVMs. Here, an online learning method with the perceptron uses an input image as new training data if the image is effective in relearning in the recognition process. Next, we select a final hand shape from the outputs of SVMs and perceptrons by using the score from SVMs. The combined method with the online perceptron is robust against unknown users because it contains a relearning process for the current user. Therefore applying the online perceptron leads to an improvement in accuracy. We compare the combined method with a method that uses only SVMs. Experimental results show the effectiveness of the proposed method.

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Last updated on Sep. 20, 2017