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Development of Algorithm for Stereoscopic PIV using Normalized Cross-correlation

정규상호상관도를 이용한 입체 입자영상유속계 알고리즘 개발

  • Oh, Jung-Keun (RIMSE, Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Kim, Yoo-Chul (RIMSE, Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Ryu, Min-Cheol (Daewoo Shipbuilding and Marine Engineering Co., Ltd.) ;
  • Koh, Won-Kyou (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
  • Suh, Jung-Chun (RIMSE, Department of Naval Architecture and Ocean Engineering, Seoul National University)
  • 오정근 (서울대학교 조선해양공학과 해양시스템공학연구소) ;
  • 김유철 (서울대학교 조선해양공학과 해양시스템공학연구소) ;
  • 류민철 (대우조선해양(주)) ;
  • 고원규 (서울대학교 조선해양공학과) ;
  • 서정천 (서울대학교 조선해양공학과 해양시스템공학연구소)
  • Published : 2007.12.20

Abstract

Contrary to the conventional single-point measuring devices such as LDV, pitot-tube, hot-wire, etc., it would be possible to measure instantaneously 3-D flow fields with a stereoscopic PIV system. In this paper, we present an analysis algorithm for a stereoscopic PIV system using the normalized cross-correlation (NCC) and a 3-D calibration based reconstruction method. The evaluation method based on NCC is one of the most accurate correlation-based methods. We validated the developed algorithm through a benchmarking comparison with 3-D artificial SPIV images and calibration target images.

Keywords

References

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