NDLI: Using a Free-Parts Representation for Visual Speech Recognition

Content Provider	IEEE Xplore Digital Library
Author	Lucey, P. Lucey, S. Sridharan, S.
Copyright Year	2005
Description	Author affiliation: Queensland University of Technology (Lucey, P.)
Abstract	Motivated by the success of free-parts based representations in face recognition, we have attempted to address some of the problems associated with applying such a philosophy to the task of speaker-independent visual speech recognition. A major problem with canonical area-based approaches in automatic visual speech recognition is the dependence these approaches have on locating and tracking the speakers region of interest (ROI) correctly. By employing a free-parts representation,we assume that the position/structure of patches within the mouth image can be relaxed so they can "freely" move to varying extents, hence reducing the influence of the front-end effect. In this paper, we show that by using a free-parts representation we gain some robustness against the problem of ROI localisation and tracking compared to current area-based feature extraction techniques such as the discrete cosine transform (DCT). Also in this paper, we expose the importance of representation for the task of visual speech recognition highlighted by the poor results current representations yield.
Starting Page	55
Ending Page	55
File Size	196007
Page Count	1
File Format	PDF
ISBN	0769524672
DOI	10.1109/DICTA.2005.84
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-12-06
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	IEEE/CSP
Subject Keyword	Face recognition Laboratories Mouth Hidden Markov models Speech recognition Feature extraction Robustness Discrete cosine transforms Pixel Automatic speech recognition
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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