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Chapter and Conference Paper
Empowering Well-Being Through Conversational Coaching for Active and Healthy Ageing
With life expectancy growing rapidly over the past century, societies are being increasingly faced with a need to find smart living solutions for elderly care and active ageing. The e-VITA project, which is a ...
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Chapter and Conference Paper
A Spoken Dialogue System for the EMPATHIC Virtual Coach
The EMPATHIC project is devoted to the of of personalised virtual coaches to help elderly people to live independently. In this paper we describe a proposal to deal with the Dialogue Management of the ...
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Chapter and Conference Paper
TIMIT and NTIMIT Phone Recognition Using Convolutional Neural Networks
A novel application of convolutional neural networks to phone recognition is presented in this paper. Both the TIMIT and NTIMIT speech corpora have been employed. The phonetic transcriptions of these corpora ...
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Chapter
A Multi-lingual Evaluation of the vAssist Spoken Dialog System. Comparing Disco and RavenClaw
vAssist (Voice Controlled Assistive and Services for the Home) is a project for which research and have working on the development of adapted spoken interfaces to support home care and communicat...
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Chapter and Conference Paper
LifeLine Dialogues with Roberta
This paper describes work on dialogue data collection and dialogue system design for personal assistant humanoid robots undertaken at eNTERFACE 2016. The emphasis has been on the system’s speech capabilities a...
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Chapter and Conference Paper
3D Face Pose and Animation Tracking via Eigen-Decomposition Based Bayesian Approach
This paper presents a new method to track both the face pose and the face animation with a monocular camera. The approach is based on the 3D face model CANDIDE and on the SIFT (Scale Invariant Feature Transfor...
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Article
Open AccessAutomatic detection of known advertisements in radio broadcast with data-driven ALISP transcriptions
This paper presents an audio indexing system to search for known advertisements in radio broadcast streams, using automatically acquired segmental units. These units, called Automatic Language Independent Spee...
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Chapter
Spoken Dialogue in Virtual Worlds
Human-computer conversations have attracted a great deal of interest especially in virtual worlds. In fact, research gave rise to spoken dialogue systems by taking advantage of speech recognition, language und...
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Article
Audio-visual speech asynchrony detection using co-inertia analysis and coupled hidden markov models
This paper addresses the subject of liveness detection, which is a test that ensures that biometric cues are acquired from a live person who is actually present at the time of capture. The liveness check is pe...
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Article
Open AccessTalking-Face Identity Verification, Audiovisual Forgery, and Robustness Issues
The robustness of a biometric identity verification (IV) system is best evaluated by monitoring its behavior under impostor attacks. Such attacks may include the transformation of one, many, or all of the biom...
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Book
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Chapter and Conference Paper
Audio-Visual Identity Verification and Robustness to Imposture
The robustness of talking-face identity verification (IV) systems is best evaluated by monitoring their behavior under impostor attacks. We propose a scenario where the impostor uses a still face picture and a...
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Chapter and Conference Paper
A Graph Based Approach to Speaker Retrieval in Talk Show Videos with Transcript-Based Supervision
This paper proposes a graph based strategy to retrieve frames containing the queried speakers in talk show videos. Based on who is speaking and when information from the audio transcript, an initial audio-base...
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Chapter and Conference Paper
Vocal Forgery in Forensic Sciences
This article describes techniques of vocal forgery able to affect automatic speaker recognition system in a forensic context. Vocal forgery covers two main aspects: voice transformation and voice conversion. C...
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Chapter
Introduction—About the Need of an Evaluation Framework in Biometrics
How can scientific progress be measured? How do we know if a pattern recognition algorithm performs better on average than another one? How much data is needed to claim with confidence that one system performs...
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Chapter
Talking-face Verification
This chapter addresses the relatively new area of identity verification based on talking faces. This biometric modality is intrinsically multimodal. Indeed, not only does it contain both voice and face modalit...
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Chapter and Conference Paper
Multimodal Human Machine Interactions in Virtual and Augmented Reality
Virtual worlds are develo** rapidly over the Internet. They are visited by avatars and staffed with Embodied Conversational Agents (ECAs). An avatar is a representation of a physical person. Each person cont...
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Chapter
BioSecure Multimodal Evaluation Campaign 2007 (BMEC’2007)
This chapter presents the experimental results from the mobile scenario of the BioSecure Multimodal Evaluation Campaign 2007 (BMEC’2007). This competition was organized by the BioSecure Network of Excellence (...
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Chapter
Text-independent Speaker Verification
In this chapter, an overview of text-independent speaker verification is given first. Then, recent developments needed to reach state-of-the-art performances using low-level (acoustic) features as well as how ...
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Article
Open AccessAudiovisual Speech Synchrony Measure: Application to Biometrics
Speech is a means of communication which is intrinsically bimodal: the audio signal originates from the dynamics of the articulators. This paper reviews recent works in the field of audiovisual speech, and mor...
