Silhouette Denoising for the Stone Cultural Heritages

석탑 문화재의 실루엣 추출을 위한 노이즈 제거

  • 김학란 (경원대학교 문화콘텐츠지원기술(CT)연구소) ;
  • 황보택근 (경원대학교 IT대학 컴퓨터미디어)
  • Received : 2009.05.30
  • Accepted : 2009.08.27
  • Published : 2009.09.30

Abstract

This paper proposes a denoising method for the contour edges and crease edges of silhouette obtained from 3D scanned data of stone cultural heritages. It is often the case that the silhouette involves noise in the form of short-length line segments, due to rough surfaces of stone cultural heritages, weathering, and technical difficulties arising in data acquisition. Thus the removal of the short-length line segments from the contour edges and crease edges can result in a clear and accurate silhouette. An efficient computational algorithm is introduced to count the continuity of line segments; edges having not more than 3 line segments are removed. It has been verified that the new method is more effective than threshold-based silhouette extraction methods for stone heritages. Our method is applicable for various other data which are deteriorated by short-length line segments.

Acknowledgement

Supported by : 문화체육관광부 한국콘텐츠진흥원

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