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Human Touching Behavior Recognition based on Neural Network in the Touch Detector using Force Sensors  

Ryu, Joung-Woo (한국전자통신연구원 지능형로봇연구단)
Park, Cheon-Shu (한국전자통신연구원 지능형로봇연구단)
Sohn, Joo-Chan (한국전자통신연구원 지능형로봇연구단)
Abstract
Of the possible interactions between human and robot, touch is an important means of providing human beings with emotional relief. However, most previous studies have focused on interactions based on voice and images. In this paper. a method of recognizing human touching behaviors is proposed for developing a robot that can naturally interact with humans through touch. In this method, the recognition process is divided into pre-process and recognition Phases. In the Pre-Process Phase, recognizable characteristics are calculated from the data generated by the touch detector which was fabricated using force sensors. The force sensor used an FSR (force sensing register). The recognition phase classifies human touching behaviors using a multi-layer perceptron which is a neural network model. Experimental data was generated by six men employing three types of human touching behaviors including 'hitting', 'stroking' and 'tickling'. As the experimental result of a recognizer being generated for each user and being evaluated as cross-validation, the average recognition rate was 82.9% while the result of a single recognizer for all users showed a 74.5% average recognition rate.
Keywords
touching behavior; neural network; human-robot interaction; force sensor;
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