수역 및 흐름 방향 탐지를 위한 하이브리드 접근법

• 영문명: Hybrid approach to detect water bodies and their flow paths
• 발행기관: 한국방재학회
• 저자명: 김종천(Kim Jong Chun) 백경록(Paik Kyung rock)
• 간행물 정보: 『3. 한국방재학회 학술대회논문집』2015년, 105~105쪽, 전체 1쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2015.02.25

영문 초록

Detection of water bodies and their flow paths is elemental process of terrain analysis in any application related with surface water. Several algorithms have been proposed for automatic extraction of surface flow paths from Digital Elevation Models (DEMs) (e.g., O'Callaghan and Mark, 1984; Tarboton, 1997; Paik, 2008). While these algorithms have been widely applied, DEMs-based approaches have fundamental limitation in detecting water bodies. To resolve this issue, we propose a hybrid approach that utilizes DEMs and satellite imagery together. These dataset supplement each other's weakness, providing extra information for better detection of water bodies and flow paths. The proposed approach is tested for the Geum River, showing successfully extraction of flow boundaries and more resonable flow paths within water bodies.

키워드

Terrain analysis Digital Elevation Models Satellite imagery Hybrid algorithm