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Algorithm Based On The Chinese Phonetic With3D Animation Research Mouth

Posted on:2013-01-01Degree:MasterType:Thesis
Country:ChinaCandidate:Y X BiFull Text:PDF
GTID:2248330395459956Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
In recent years, with the rapid development of multimedia technology andhuman-computer interaction technology, people are increasingly looking to the naturalflow of communication with the computer. The human faces convey most of thecommunication information in the communication process, such as mood and mentalstate. Therefore, the study of facial expression animation in computer animationresearch in recent years has been widespread concern, mouth animation in a verycritical part. The main work of this paper is the Facial Action Coding based onMPEG-4standard extraction coding region of the face mouth classification forChinese pronunciation features of pronunciation, and this basic weighting algorithmof the port type classification application-driven Chinese pronunciationsynchronization mouth animation.This thesis is based on MPEG-4standard and the Chinese linguistic theory toSAPI5.0text to speech synthesis (TTS) engine, OGRE3D virtual simulation engineas the main tools to achieve synchronized to the voice of a Chinese based on anintegrated weighted algorithm animation system. The system consists of three parts: atext analysis system; speech synthesis system; voice and lip sync animation system.The execution of the system are flowing: First, a text analysis system to analyze theinput Chinese text, Chinese characters split into different Chinese Visualizationphonemes, the synthesis of these factors sent to the speech synthesis system as thebasic visemes stream; Secondly, based on MPEG-4standard to establish a realisticparametric face model use visemes animation frames parameter-driven model ofdeformation, in order to achieve mouth animation of the face; Finally, the synthesis ofChinese voice and face mouth the animation synchronization, the mouth to achieve amore realistic face animation. Effective solution to the synchronization problems ofthe Chinese phonetic pronunciation of the mouth animation.Since this system is established for the Chinese pronunciation mouth animationmodel to study changes in the animation of the human face, the mouth region in theanimation-driven process, and not take into account the driver of the entire facial animation, such as facial animation, tongue animation and so on. This will be thepoint of the thesis for further research study.Mouth animation scheme proposed in this paper has a very broad applicationprospects in the service industry, virtual attendant, network communication and videoconferencing, movies, games and advertising and the role of simulation in many areasof low-frequency band, enhanced multimedia and virtual reality realism. In addition,this study can be very good to promote the visual speech animation synthesis.
Keywords/Search Tags:visemes3D Face Modeling, Chinese voice synchronization, weighted control algorithm
PDF Full Text Request
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