Yoshihisa Adachi

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In this paper, we describe a robotic wheelchair system as guide robot To build a smart interface for a guide robot, it is important for the system to know the user's attention. This system can detect gaze direction of the user using a real-time stereo vision system, and can recognize its position within the surrounding environment using a range sensor and a(More)
Human interfaces are usually designed t o r espond only to intentional human behaviors. However, humans show unintentional behaviors as well. They can convey useful information to realize user-friendly human interfaces. This paper presents two human interface systems using both types of behaviors: a gesture-based interface and an intelligent wheelchair. In(More)
Since conventional correlation-based visual tracking algorithms are based on a single reference block, they often fail to track a target in the following situations: 1) a view of the target image changes, and 2) a part of the target image is occluded. This paper proposes a correlation-based visual tracking method which copes with these problems based on ane(More)
Since conventional correlation-based visual tracking algorithms are based on a single reference block, they often fail to track a target in the following situations: 1) a view of the target image changes, and 2) a part of the target image is occluded. This paper proposes a correlation-based visual tracking method which copes with these problems based on(More)
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