Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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A STUDY ON 3D BRAIN TOPOGRAPHY BASED ON PC

PC에 기반한 3차원 TOPOGRAPHIC 매핑 시스템에 관한 연구

  • Kim, K.H. (Dept. of Biomedical Engineering, Hanyang University) ;
  • Kwon, J.H. (Dept. of Biomedical Engineering, Hanyang University) ;
  • Lee, D.H. (Dept. of Biomedical Engineering, Hanyang University) ;
  • Lee, Y.H. (Dept. of Electronics, Hanyang University) ;
  • Kim, S.I. (Dept. of Biomedical Engineering, Hanyang University)
  • 김강호 (한양대학교 의용생체공학과) ;
  • 권중혁 (한양대학교 의용생체공학과) ;
  • 이대희 (한양대학교 의용생체공학과) ;
  • 이용희 (한양대학교 전자공학과) ;
  • 김선일 (한양대학교 의용생체공학과)
  • Published : 1997.05.23
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Abstract

To visualize electrical activities in the cerebral cortex, we develop the 3D topographic mapping system based on PC. For this work, we utilize OpenGL tool and an optimized interpolation method known as 3D barycentric algotithm, which has a little computational complexity. OpenGL processes the 3D coordinates, and 3D barycentric algotithm interpolates to get overall EEGs with EEGs measured from finite electrodes on 3D. To prove validity of this algorithm on the PC-based system, we developped Windows-based 3D topographic mapping program using the Barycentric algorithm. The result showed that the performance of this system is comparable to that of workstation in terms of speed and precision. Also, the result of clinical test was the same as that of a EEG technician's analysis.

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