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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 4 of 4 1 Polygonal approximation using integer particle swarm optimization Wang, Bin; Brown, Douglas; Zhang, Xiaozheng... In: Information sciences. - New York, NY : Elsevier Science Inc. 278 (2014), 311-326 OLC Linguistik Show details 2 Audio-Visual Speech Recognition by Speechreading Zhang, Xiaozheng; Clements, Mark A.; Mersereau, Russell M. In: Electrical Engineering (2002) BASE Show details 3 Visual Speech Feature Extraction for Improved Speech Recognition Zhang, Xiaozheng; Mersereau, Russell M.; Broun, Charles C.; Clements, Mark A. In: Electrical Engineering (2002) Abstract: Mainstream automatic speech recognition has focused almost exclusively on the acoustic signal. The performance of these systems degrades considerably in the real world in the presence of noise. On the other hand, most human listeners, both hearing-impaired and normal hearing, make use of visual information to improve speech perception in acoustically hostile environments. Motivated by humans' ability to lipread, the visual component is considered to yield information that is not always present in the acoustic signal and enables improved accuracy over totally acoustic systems, especially in noisy environments. In this paper, we investigate the usefulness of visual information in speech recognition. We first present a method for automatically locating and extracting visual speech features from a talking person in color video sequences. We then develop a recognition engine to train and recognize sequences of visual parameters for the purpose of speech recognition. We particularly explore the impact of various combinations of visual features on the recognition accuracy. We conclude that the inner lip contour features together with the information about the visibility of the tongue and teeth significantly improve the performance over using outer contour only features in both speaker dependent and speaker independent recognition tasks. Keyword: Electrical and Computer Engineering URL: https://digitalcommons.calpoly.edu/eeng_fac/264 https://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=1264&context=eeng_fac BASE Hide details 4 Automatic Speechreading with Application to Speaker Verification Zhang, Xiaozheng; Mersereau, Russell M.; Broun, Charles C.... In: Electrical Engineering (2002) BASE Show details

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