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International Journal of Soft Computing
Year: 2010  |  Volume: 5  |  Issue: 1  |  Page No.: 13 - 18

A Novel Approach Integrating Geometric and Gabor Wavelet Approaches to Improvise Visual Lipreading

B. Sujatha and T. Santhanam    

Abstract: Lipreading a perception of speech for listeners with hearing impairment is purely based on observing the lip movements under noisy conditions where visual speech information plays an important role. Lipreading, a visual modality which involves watching the movement of lips constitutes 1/3 of the conveyed message. This study investigates the use of two feature extraction methodologies for recognizing isolated words. The first type is based on a geometric approach which extracts the features like inner height, inner width, outer height and outer width of the lips while the second type is based on a set of Block-Based Gabor-Wavelet co-efficient extracted from each frame. Then these two features are given as input into the Ergodic Hidden Markov Model for recognizing the words.

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