Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Depth Extraction from Stereo Endoscope Using Adaptive Window

적응형 윈도우를 이용한 스테레오 내시경에서의 깊이추출 연구

  • Hwang, D.S. (Department of Electrical Engineering, Yonsei University) ;
  • Kim, J.H. (Department of Electrical Engineering, Yonsei University) ;
  • An, J.S. (Department of Electrical Engineering, Yonsei University) ;
  • Lee, S.J. (Department of Electrical Engineering, Yonsei University) ;
  • Lee, M.H. (Department of Electrical Engineering, Yonsei University)
  • 황도식 (연세대학교 공과대학 전기공학과) ;
  • 김정훈 (연세대학교 공과대학 전기공학과) ;
  • 안종식 (연세대학교 공과대학 전기공학과) ;
  • 이성재 (연세대학교 공과대학 전기공학과) ;
  • 이명호 (연세대학교 공과대학 전기공학과)
  • Published : 1998.11.20
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Abstract

This paper describes a depth extraction algorithm in the stereo endoscopic images using adaptive window. First, The relation between the 3D coordinates in the world and the 2D coordinates in the image plane is estimated using camera calibration. Next, stereo matching is performed to find the conjugate pairs in the left and right images. To improve the precision of the matching result, adaptive window which can be varied on the shape as well as on the size according to the area characteristics is used. Finally, the result from the stereo matching and that of camera modeling are combined to extract the real depth information.

Keywords