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The project addresses the issue of secured access to local and centralized services in a multi-media environment with respect to extending the scope of application of network-based services by adding novel and intelligent functionalities, enabled by automatic verification systems combining multimodal strategies (secured access based on speech, image and other information). It is hoped to show that limitations of individual technologies (speech recognition, speaker verification.) can be overcome by relying on multi-modal decisions (combination or fusion of these technologies) and can find practical and important applications in the new emerging fields of advanced interfaces for tele-services.
A flexible software and hardware platform has been realised. From this platform, four demonstrators have been developed, evaluated and installed at end-user sites: level 1, a network-based voice mail system with access control using robust speech recognition technology and rejection (one speech modality is used: speaker dependent password recognition); level 2, the same application reinforced by two additional modalities (text-dependent and text-independent verification of the voice);1st level 3, an access control to buildings realised using the level 1 system complemented with a profile recognise; 2nd level 3, an access control to rooms realised using the level 1 system, the profile recognise and a face recognise.
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