tailieunhanh - Báo cáo hóa học: " Research Article Cued Speech Gesture Recognition: A First Prototype Based on Early Reduction"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Cued Speech Gesture Recognition: A First Prototype Based on Early Reduction | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2007 Article ID 73703 19 pages doi 2007 73703 Research Article Cued Speech Gesture Recognition A First Prototype Based on Early Reduction Thomas Burger 1 Alice Caplier 2 and Pascal Perret1 1 France Telecom R D 28 chemin du Vieux Chene 38240 Meylan France 2 GIPSA-Lab DIS 46 avenue Felix Viallet 38031 Grenoble Cedex France Received 10 January 2007 Revised 2 May 2007 Accepted 23 August 2007 Recommended by Dimitrios Tzovaras Cued Speech is a specific linguistic code for hearing-impaired people. It is based on both lip reading and manual gestures. In the context of THIMP Telephony for the Hearing-IMpaired Project we work on automatic cued speech translation. In this paper we only address the problem of automatic cued speech manual gesture recognition. Such a gesture recognition issue is really common from a theoretical point of view but we approach it with respect to its particularities in order to derive an original method. This method is essentially built around a bioinspired method called early reduction. Prior to a complete analysis of each image of a sequence the early reduction process automatically extracts a restricted number of key images which summarize the whole sequence. Only the key images are studied from a temporal point of view with lighter computation than the complete sequence. Copyright 2007 Thomas Burger et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION Among the various means of expression dedicated to the hearing impaired the best known are sign languages SLs . Most of the time SLs have a structure completely different from oral languages. As a consequence the mother tongue of the hearing impaired any SL is completely different from that which the hearing impaired are supposed