Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Development and Evaluation of Stitching Algorithm With five Degrees of Freedom for Three-dimensional High-precision Texture of Large Surface

대면적/고정밀 3차원 표면형상의 5자유도 정합법 개발 및 평가

  • Lee, Dong-Hyeok (Department of Mechanical Design And Mechatronics, Hanyang Univ.) ;
  • Ahn, Jung-Hwa (Manufacturing and Measuring Research Department, Hyundai Maritime Research Institute) ;
  • Cho, Nham Gyoo (Department of Mechanical Engineering, Hanyang Univ.)
  • Received : 2013.07.02
  • Accepted : 2014.03.26
  • Published : 2014.04.15
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Abstract

In this paper, a new method is proposed for the five-degree-of-freedom precision alignment and stitching of three-dimensional surface-profile data sets. The control parameters for correcting thealignment error are calculated from the surface profile data for overlapped areas among the adjacent measuring areas by using the "least squares method" and "maximum lag position of cross correlation function." To ensure the alignment and stitching reliability, the relationships betweenthe alignment uncertainty, overlapped area, and signal-to-noise level of the measured profile data are investigated. Based on the results of this uncertainty analysis, an appropriate size is proposed for the overlapped area according to the specimen's surface texture and noise level.

Keywords

References

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