Analysis of Features for Efficient Japanese Vowel Recognition

Takeshi SAITOH  Mitsugu HISAGI  Ryosuke KONISHI  

IEICE TRANSACTIONS on Information and Systems   Vol.E90-D   No.11   pp.1889-1891
Publication Date: 2007/11/01
Online ISSN: 1745-1361
DOI: 10.1093/ietisy/e90-d.11.1889
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Pattern Recognition
lip-reading,  feature,  vowel recognition,  

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This paper analyses the features required to efficiently recognize five Japanese vowels for lip-reading. Various features, such as shape and radius, are calculated from the lip region and fed to the k Nearest Neighbor method. We calculated 15 feature sets and found that the feature set including the area and aspect ratio of the mouth cavity is effective for Japanese vowel recognition.