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도착시간지연 특성행렬을 이용한 휴머노이드 로봇의 공간 화자 위치측정

Spatial Speaker Localization for a Humanoid Robot Using TDOA-based Feature Matrix

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초록

Nowadays, research on human-robot interaction has been getting increasing attention. In the research field of human-robot interaction, speech signal processing in particular is the source of much interest. In this paper, we report a speaker localization system with six microphones for a humanoid robot called MAHRU from KIST and propose a time delay of arrival (TDOA)-based feature matrix with its algorithm based on the minimum sum of absolute errors (MSAE) for sound source localization. The TDOA-based feature matrix is defined as a simple database matrix calculated from pairs of microphones installed on a humanoid robot. The proposed method, using the TDOA-based feature matrix and its algorithm based on MSAE, effortlessly localizes a sound source without any requirement for calculating approximate nonlinear equations. To verify the solid performance of our speaker localization system for a humanoid robot, we present various experimental results for the speech sources at all directions within 5 m distance and the height divided into three parts.

Abstract

Nowadays, research on human-robot interaction has been getting increasing attention. In the research field of human-robot interaction, speech signal processing in particular is the source of much interest. In this paper, we report a speaker localization system with six microphones for a humanoid robot called MAHRU from KIST and propose a time delay of arrival (TDOA)-based feature matrix with its algorithm based on the minimum sum of absolute errors (MSAE) for sound source localization. The TDOA-based feature matrix is defined as a simple database matrix calculated from pairs of microphones installed on a humanoid robot. The proposed method, using the TDOA-based feature matrix and its algorithm based on MSAE, effortlessly localizes a sound source without any requirement for calculating approximate nonlinear equations. To verify the solid performance of our speaker localization system for a humanoid robot, we present various experimental results for the speech sources at all directions within 5 m distance and the height divided into three parts.

참고문헌 (12)

  1. 송민규, "시청각 정보를 이용한 개인 추적 방법 연구", 석사, pp.2006
  2. Jie Huang, "Robotic Spatial Sound Localization and Its 3-D sound Human Interface", Proc. of the First International Symposium on Cyber Worlds, pp.191~197 (2002)
  3. I. Hara, "Robust Speech Interface Based on Audio and Video Information Fusion for Humanoid HRP-2", Proceedings of IEEE, 2004, 2404~2410
  4. S. Yamamoto, "Real-Time Robot Audition System That Recognizes Simultaneous Speech in The Real World", Proceedings of IEEE, 2006, 5333~5388
  5. T. Ishida, "T. Ishida", Proceedings of IEEE International Conference on Robotics and Automation, pp.648~653 (2004)
  6. H.G.Okuno, "Real-time sound source localization and separation for robot audition", Proceedings of IEEE International Conference on Spoken Language Processing, pp.196~ (2002)
  7. H.G. Okuno, "Computational Auditory Scene Analysis and Its Application to Robot Audition", Proceedings of the 12th International Conference on Informatics Research for Development of Knowledge Society Infrastructure, pp.73~80 (2004)
  8. T. Nishiura, "Localization of multiple sound sources based on a CSP analysis with a microphone array", Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, pp.1053~1056 (2000)
  9. J. Sohn, "A Statistical Model-Based Voice Activity Detection", IEEE Signal Processing Letters, 6(1), pp.1~3 (1999)
  10. 박정옥, "휴머노이드 로봇을 위한 시청각 정보 기 반 음원 정위 시스템 구현", 석사, pp.2005
  11. 장근원, "UMP 테스트를 이용한 통계적 모델 음 성검출기 구현 및 성능 분석", 석사, pp.2008
  12. U.H. Kim, "Speaker Localization Using the TDOA-based Feature Matrix for a Humanoid Robot", Proceedings of the 17th IEEE International Symposium on Robot and Human Interactive Communication, pp.610~615 (2008)

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