Gesture Recognition Using HLAC Features of PARCOR Images

Takio KURITA  Satoru HAYAMIZU  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E86-D   No.4   pp.719-726
Publication Date: 2003/04/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8532
Type of Manuscript: PAPER
Category: Image Processing, Image Pattern Recognition
Keyword: 
gesture recognition,  PARCOR images,  Hidden Markov Model,  higher order local autocorrelation,  linear prediction coding,  

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Summary: 
This paper proposes a gesture recognition method which uses higher order local autocorrelation (HLAC) features extracted from PARCOR images. To extract dominant information from a sequence of images, we apply linear prediction coding technique to the sequence of pixel intensities and PARCOR images are constructed from the PARCOR coefficients of the sequences of the pixel values. From the PARCOR images, HLAC features are extracted and the sequences of the features are used as the input vectors of the Hidden Markov Model (HMM) based recognizer. Since HLAC features are inherently shift-invariant and computationally inexpensive, the proposed method becomes robust to changes in the person's position and makes real-time gesture recognition possible. Experimental results of gesture recognition are shown to evaluate the performance of the proposed method.