Disproving visemes as the basic visual unit of speech
Access Status
Open access
Authors
Date
2013Supervisor
Euan David Lindsay
Type
Thesis
Award
PhD
Metadata
Show full item recordSchool
School of Engineering, Department of Mechanical Engineering
Collection
Abstract
Visemes are groups of phonemes that are considered visually indistinguishable, but there are many doubts regarding their use in visual speech recognition. In this thesis, a visual speech recogniser is constructed to test the validity of visemes. Examining the phoneme output of the recogniser shows that it is not possible to construct a viseme grouping that exhibits the required phoneme confusion characteristics. This thesis proves that phonemes, not visemes, are the basic visual unit of speech.
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