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Audio-visual speech synthesis is the core function for realizing face-to-face human-computer communication. While considerable efforts have been made to enable talking with computer like people, how to integrate the emotional expressions into the audio-visual speech synthesis remains largely a problem. In this paper, we adopt the notion of(More)
This paper describes our initial work in developing a real-time audiovisual Chinese speech synthesizer with a 3D expressive avatar. The avatar model is parameterized according to the MPEG-4 facial animation standard [1]. This standard offers a compact set of facial animation parameters (FAPs) and feature points (FPs) to enable realization of 20 Chinese(More)
OBJECTIVE To establish a population pharmacokinetics (PPK) model of lamotrigine, an antiepileptic drug, in Chinese children with epilepsy to formulate an individualized dosage guideline. METHODS A total of 303 data, including the random ones of serum lamotrigine concentrations from 165 epileptic children were analyzed. Lamotrigine concentrations were(More)
This paper proposes an approach for text-to-visual speech synthesis, where the synthetic head movements are rendered with an expressive talking avatar speaking Cantonese Chinese. The input text consists of descriptive information sourced from the Hong Kong tourism domain. The text is segmented into prosodic words (PW) and we adopt the PAD model to describe(More)
This paper proposes to synthesize expressive head and facial gestures on talking avatar using the three dimensional pleasure-displeasure, arousal-nonarousal and dominance-submissiveness (PAD) descriptors of semantic expressivity. The PAD model is adopted to bridge the gap between text semantics and visual motion features with three dimensions of(More)
Facial expression plays an important role in face to face communication in that it conveys nonverbal information and emotional intent beyond speech. In this paper, an approach for facial expression synthesis with an expressive Chinese talking avatar is proposed, where a layered parametric framework is designed to synthesize intermediate facial expressions(More)
A better understanding of the individual developers¿ performance has been shown to result in benefits such as improved project estimation accuracy and enhanced software quality assurance. However, new challenges of distinguishing the individual activities involved in software evolution arise when considering collaborative development environments. Since(More)
Facial expression is one of the most expressive ways for human beings to deliver their emotion, intention, and other nonverbal messages in face to face communications. In this chapter, a layered parametric framework is proposed to synthesize the emotional facial expressions for an MPEG4 compliant talking avatar based on the three dimensional PAD model,(More)