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Graduate Projects


Project ID: 306
Author: Rafal Dopierala
Project Title: Visualization of Optical Speech Prosody
Semester: Summer 2007
Committe Chair: Dr. Scott A. King
Committee Member 1: Dr. Hongyu Guo
Committee Member 2: Dr. David Thomas
Project Description: Work is presented on a Visualization Tool that has been created to explore how prosody (syllable accent, volume, intonation, and rate) affects the surface of the face. Research, being conducted at Texas A&M University Corpus Christi, works to create realistic animated characters. The research uses muscle-based parameters to animate a facial model over time. Data was collected from previous work, which supplied the muscle-based parameters needed for this project. The data was used to compare the non-linear and linear relationship between prosody, and the change in shape. The Visualization Tool switches from numbers that cannot be easily interpreted by humans, into visual images in the form of curves. In order for the comparison to occur, the parameter values need to be examined in visualized curves. These curves can be easily seen by the user, and allows the user to compare and contrast data more efficiently. When the Visualization Tool was implemented, it encountered some obstacles. The tool was designed in MatlLab; however, due to limitations, a special data structure had to be designed in order to meet the requirements. The design includes both scripts and functions, but when functions are used, they have to be treated in a special way. Because they use their own workspace, the variables are not visible to other functions. A special structure had to be created, in order to make a database available for each function. The work completed serves the research that strives to create realistic animated characters. Utilizing the Visualization Tool to conduct curve analysis increases the possibility for future exploration and expansion.
Project URL:   306.pdf