Estimating Person's Awareness of an Obstacle using HCRF for an Attendant Robot

This paper describes an estimation method of a person's awareness of an obstacle. We assume that the person's awareness influences the person's motion, and construct a model of the relationship between the awareness and the motion using HCRF. We extract a sequence of motion features from the person trajectory, and then classify whether the person is aware of the obstacle or not using the model. Awareness estimation experiments are conducted in order to validate the method and evaluate its performance. Since the method uses only the position and the velocity of the person, it can be applicable to mobile robots.

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