CURVE EXTRACTION USING PYRAMID

피라미드를 이용한 곡선 추적에 관한 연구

  • Kim, So-Yun (Department of Computer Science, Ewha University) ;
  • Cho, Dong-Sub (Department of Computer Science, Ewha University)
  • 김소연 (이화여자대학교 전자계산학과 대학원) ;
  • 조동섭 (이화여자대학교 전자계산학과 대학원)
  • Published : 1991.11.22

Abstract

A method of extracting global, trend curves from input image that may locally not even contain small fragments of those curves using a hierarchical pyramid data structure is suggested. The smoothed input image is subsampled into a pyramid of lower-resolution versions by recursive computation of Gaussian-weighted sums. Trend curves are extracted by finding control points from ridges in these blurred images, and interpolating B-splines for those points.

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