해양환경안전학회지 (Journal of the Korean Society of Marine Environment & Safety)

  • 제4권1호
  • /
  • Pages.13-20
  • /
  • 1998
  • /
  • 1229-3431(pISSN)
  • /
  • 2287-3341(eISSN)
해양환경안전학회 (The Korean Society of Marine Environment and safety)
권호 표지

현저한 해안 위치를 절점으로 선정하는 디지털 해도에서의 해안선 데이터 압축

On the Coastline Date Compression in Digital Chart Selecting Conspicuous Coast Positiona as Node Points

  • 임정빈 (해군사관학교 교수부 항해운용학과) ;
  • 고광섭 (해군사관학교 교수부 항해운용학과) ;
  • 최낙현 (해군사관학교 교수부 병포학과)
  • 발행 : 1998.01.01
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초록

Since the digital chart consists of a large number of points, the effective method for the coastline data compression(CDC), storing the data compactly and reproducting the coastline feature accurately, is important. In the CDC, the key technique is to determine the optimal positions as node points in given coastlines. In this paper, a new CDC method, selecting node points with conspicuous coast positions in the view point on navigation and adopting spline interpolation to the nodes partly, is proposed. Using the northern part of KEOJE-DO coastline in Korean chart No.204, CDC experiments are carrie out with various compression ratio. The results fro the influence of coastline shape according to various CDC methods are discussed and presented.

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참고문헌

  1. Specification for Chart Content and Display Aspects of ECDIS v.52 International Hydrographic Organization(IHO)
  2. Performance Standard for Electronic Chart Display and Information System(ECDIS) Harmonization Group on ECDIS(HGE)
  3. Draft Performance Standard for Electronic Chart Display and Information System(ECDIS) Harmonization Group on ECDIS (HGE)
  4. Technical Manual for PATHFINDER/ST(ECDIS C20)
  5. Technical Manual for NAVI SAILOR2400(Ver.2.1)
  6. Technical Manual for ECDIS
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  10. Advanced Engineering Mathematics (Fifth Ed.) v.2 Erwin Creyszing
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  12. 해군해양연구소 97년도 최종연구보고서 디지털 해도의 데이터 압축에 관한 연구 임정빈;김종선