NDLI: Conversation Robot with the Function of Gaze Recognition

Content Provider	IEEE Xplore Digital Library
Author	Fujie, S. Yamahata, T. Kobayashi, T.
Copyright Year	2006
Description	Author affiliation: Adv. Res. Inst. for Sci. & Eng., Waseda Univ., Tokyo (Fujie, S.)
Abstract	Gaze recognition for conversation robot is realized and its effectiveness is confirmed. In human conversation, in addition to speech information, visual information plays important role. Particularly, gaze direction is a very useful prompt for turn-taking. In the case that the speaker finish his utterance, for example, if he looks at the listener, then he expect the listener to speak. On the other hand, if the speaker does not look at the listener, he tries to keep his turn. Most conventional spoken dialogue systems detect the finish of user's turn only by speech recognition. These systems cannot understand the user tries to keep his turn, and they wrongly begin the utterance and block the user's remaining utterance. In this study, we implement the gaze recognition using the user's image captured by the camera mounted on the eye of the robot and apply the recognition results to decide who should speak next. For gaze recognition, we introduce the sub-image of user's eye region extracted with the active appearance model as the feature. Recognition with subspace method using this feature achieved 70% in recognition rate. Finally, the effectiveness of the gaze recognition is confirmed through the subjective experiment. The experiment is performed by the actual conversation between the conversation robot and the subject.
Starting Page	364
Ending Page	369
File Size	6387285
Page Count	6
File Format	PDF
ISBN	1424401992
DOI	10.1109/ICHR.2006.321298
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-12-04
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Iris Image recognition Target recognition Image converters Humans Speech recognition Control systems Pattern recognition Data mining Robots
Content Type	Text
Resource Type	Article

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