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A probabilistic model of human motion and navigation intent for mobile robot path planning

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3 Author(s)
Simon Thompson ; Digital Human Research Center, AIST, Aomi, Koto-ku, Tokyo-to135-0064, Japan ; Takehiro Horiuchi ; Satoshi Kagami

In order to effectively plan paths in environments inhabited by humans, robots must accurately predict human motion. Typical approaches to human prediction simply assume a constant velocity which is not always valid. This paper proposes to determine the likely navigation intent of humans and use that to predict human motion. Navigation intent is determined by the function and structure of the environment. Manually assigned functional places are combined with automatically extracted navigation way-points to define a number of likely navigation targets within the environment. To predict human motion toward these targets, a probabilistic model of human motion is proposed which is based on motion probability grids generated from observed motion. The models of human navigation intent and motion are integrated with an autonomous mobile robot system, with a laser range sensor detecting humans moving within the environment, and a path planning system. The models of human navigation intent and motion are verified using real captured human motion data from an office environment. Examples of human motion prediction are also presented.

Published in:

Autonomous Robots and Agents, 2009. ICARA 2009. 4th International Conference on

Date of Conference:

10-12 Feb. 2009