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We propose a visual recognition system for robotic applications in which distance to the visual objects can change a lot (for instance, trying to recognize a distant object learned from a short distance). Our system takes advantage of a single pan-tilt camera controllable in zoom and focus. Focus control allows to detect plans of sharpness in the scene and indirectly to compute a distance. Hence,...
A multimodal interface can achieve more natural and effective human-computer interaction. In this paper, we present an isolated-word recognizer using a fusion of speech and natural visual gestures. The fusion of audio and visual signals can be carried out either at the class level or the feature level. Our system incorporates a fusion system at the feature level which supports 10 natural gestures...
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