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

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Advances in Shoreline Detection using Satellite Imagery

위성영상을 활용한 해안선 탐지 연구동향

  • Tae-Soon Kang (1st headquarter, Geosystem Research Corp.) ;
  • Ho-Jun Yoo (Dept. of Coastal Management, Geosystem Research Corp.) ;
  • Ye-Jin Hwang (Dept. of Coastal Management, Geosystem Research Corp.)
  • 강태순 (지오시스템리서치 1본부) ;
  • 유호준 (지오시스템리서치 연안관리부) ;
  • 황예진 (지오시스템리서치 연안관리부)
  • Received : 2023.09.27
  • Accepted : 2023.10.27
  • Published : 2023.10.31
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Abstract

To comprehensively grasp the dynamic changes in the coastal terrain and coastal erosion, it is imperative to incorporate temporal and spatial continuity through frequent and continuous monitoring. Recently, there has been a proliferation of research in coastal monitoring using remote sensing, accompanied by advancements in image monitoring and analysis technologies. Remote sensing, typically involves collection of images from aircraft or satellites from a distance, and offers distinct advantages in swiftly and accurately analyzing coastal terrain changes, leading to an escalating trend in its utilization. Remote satellite image-based coastal line detection involves defining measurable coastal lines from satellite images and extracting coastal lines by applying coastal line detection technology. Drawing from the various data sources surveyed in existing literature, this study has comprehensively analyzed encompassing the definition of coastal lines based on satellite images, current status of remote satellite imagery, existing research trends, and evolving landscape of technology for satellite image-based coastal line detection. Based on the results, research directions, on latest trends, practical techniques for ideal coastal line extraction, and enhanced integration with advanced digital monitoring were proposed. To effectively capture the changing trends and erosion levels across the entire Korean Peninsula in future, it is vital to move beyond localized monitoring and establish an active monitoring framework using digital monitoring, such as broad-scale satellite imagery. In light of these results, it is anticipated that the coastal line detection field will expedite the progression of ongoing research practices and analytical technologies.

빠르게 변화하는 연안지형과 연안침식의 동적변화 현상을 이해하기 위해서는 시·공간의 연속성이 포함된 짧은 주기 그리고 지속적인 모니터링이 필요하다. 최근 영상 모니터링 분석기술 발전과 함께 원격감지를 활용한 연안 모니터링 연구가 다수 이루어지고 있다. 원격 감지는 일반적으로 항공기나 위성으로부터 거리를 두고 측정된 영상을 활용하여 객체나 지역에 관한 정보를 추출하는 기술로 연안 지형변화를 빠르고 정확하게 분석할 수 있는 장점이 있어 그 활용도가 점차 증가하는 추세이다. 원격 위성영상 기반 해안선 탐지는 위성 영상으로부터 측정가능한 해안선 정의, 해안선 탐지기술 적용을 통한 해안선 추출로 수행된다. 기존 문헌에서 조사된 다양한 자료로부터 위성 영상기반 해안선 정의, 원격 위성영상 현황, 기존 연구동향, 위성영상 기반 해안선 탐지 기술연구 동향을 분석하였으며, 분석 결과로부터 최신 연구동향, 이상적인 해안선 추출 및 고도화된 디지털 모니터링과의 연계를 위한 실용적 기법을 검토을 위한 연구를 제언한다. 향후 한반도 전역의 변화 경향과 침식정도의 파악을 위해서는 국지적 모니터링에서 벗어나, 광역 위성 영상 등 디지털 모니터링을 활용한 능동적인 모니터링 체계를 구축할 필요가 있으며 해안선 탐지 분야는 지속적인 연구와 분석 기술의 발전이 가속화 될 것으로 판단된다.

Keywords

Acknowledgement

이 논문은 2023년도 해양수산부 재원으로 해양수산과학기술진흥원의 지원을 받아 수행된 연구임(RS-2023-00256687, 순환적응형 연안침식 관리기술 개발).

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