An integrative recognition method for speech and gestures
Madoka Miki, Chiyomi Miyajima, Takanori Nishino, Norihide Kitaoka, Kazuya Takeda · 2008
We propose an integrative recognition method of speech accompanied with gestures such as pointing. Simultaneously generated speech and pointing complementarily help the recognition of both, and thus the integration of these multiple modalities may improve recognition performance. As an example of such multimodal speech, we selected the explanation of a geometry problem. While the problem was being solved, speech and fingertip movements were recorded with a close-talking microphone and a 3D position sensor. To find the correspondence between utterance and gestures, we propose probability distribution of the time gap between the starting times of an utterance and gestures. We also propose an integrative recognition method using this distribution. We obtained approximately 3-point improvement for both speech and fingertip movement recognition performance with this method.