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ICASSP
2009
IEEE

Product-HMMs for automatic sign language recognition

8 years 10 months ago
Product-HMMs for automatic sign language recognition
We address multistream sign language recognition and focus on efficient multistream integration schemes. Alternative approaches are investigated and the application of Product-HMMs (PHMM) is proposed. The PHMM is a variant of the general multistream HMM that also allows for partial asynchrony between the streams. Experiments in classification and isolated sign recognition for the Greek Sign Language using different fusion methods, show that the PHMMs perform the best. Fusing movement and shape information with the PHMMs has increased sign classification performance by 1,2% in comparison to the Parallel HMM fusion model. Isolated sign recognition rate increased by 8,3% over movement only models and by 1,5% over movement-shape models using multistream HMMs.
Stavros Theodorakis, Athanassios Katsamanis, Petro
Added 21 May 2010
Updated 21 May 2010
Type Conference
Year 2009
Where ICASSP
Authors Stavros Theodorakis, Athanassios Katsamanis, Petros Maragos
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