상호작용에서 접촉은 인간에게 정서적 안정을 줄 수 있는 중요한 상호작용 방법 중 하나이다. 그러나 지금까지 음성과 영상을 기반으로 인간-로봇 상호작용이 이루어지는 연구가 대부분이었다.본 논문에서는 접촉을 통한 인간-로봇 상호작용을 위해 인간의 접촉행동을 인식하는 방법을 제안한다. 제안한 인식 방법에서 인식 과정은 전처리 단계와 인식 단계로 나뉜다. 전처리 단계는 접촉감지부에서 생성된 데이타로부터 인식할 수 있는 특징들을 계산하는 단계이고 인식 단계는 인식기를 통해 접촉행동으로 분류하는 단계이다. 접촉감지부는 힘 센서인 FSR 센서를 이용하여 제작하였고 인식기는 신경망 모델인 다층퍼셉트론을 사용하였다. 실험은 남자 여섯 명에 의해 생성된 세 가지 접촉행동; ‘때리다’, ‘쓰다듬다’, ‘간질이다’ 데이타를 가지고, 사람별로 인식기를 생성하여 cross-validation으로 평가한 결과 82.9%의 평균 인식률을 보였고, 사람별 구분 없이 한 개의 인식기로 실험한 결과는 74.5%의 평균 인식률을 보였다.
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