일반측량성과도에 의한 수치지도의 수시갱신방법 개발에 관한 연구 = A study on the Realtime Update of the Digital-map by the General Survey Drawing.

국문 초록 (Abstract)

수치지도의 수정갱신은 NGIS사업으로 구축한 수치지도의 활용성 향상과 최신성 유지, 확보 차원에서 추진되어온 것으로 전국 5개권역 1권역씩 5년주기로 항공사진, 위성영상 등을 이용해 수치지도를 일괄갱신해오고 있었으나, 3차NGIS시행과 더불어 갱신방안도 대도시 2년, 기타지역 4년주기로 하여 일괄갱신과 부분, 수시(실시간)갱신을 병행하는 방안으로 개선되었다. 따라서 그 어느때보다 다양한 지리정보(도면, 성과도, 지도 등)를 수치지도의 정위치에 결합 할 수 있는 매칭기법이 요구되고 있다.
본 연구에서는 여러 가지 매칭기법 중 Point좌표에 의한 점대점(Point to Point)매칭, 필지계나 지적선 등을 이용하는 선대선(Line to Line)매칭과 이를 혼용하여 위치를 결정하는 도해법(현형법) 즉 필지기준매칭을 정량적으로 수행 할 수 있는 매칭기법을 제시하였다. 이 매칭기법은 불규칙한 다각형(지형지물의 형태)의 중앙점(Middle point)을 계산하고 중앙점을 기반으로 일정각을 회전하면서 매칭율을 계산함으로서 최적의 유일한 매칭결과를 얻을 수 있는 알고리즘(s.glee algorithm)이다.
개발된 알고리즘은 일반측량성과도를 수치지도 수정갱신에 이용하는 과정에 적용되었으며, 이를 통하여 민간 개발행위 인허가시 실측되는 일반측량성과도가 개발시점에 실측된다는 최신성과 개발의사결정에 필요한 다양한 컨텐츠(도로, 건물, 배수관, 맨홀 등)를 포함한다는 점에서 수치지도의 수시갱신자료로 활용될 수 있음을 검증하였다. 본 연구의 결과는 수치지도의 부분수시갱신에 효율적으로 이용될 수 있어, 수치지도의 최신성 유지 및 활용성 향상에 크게 기여할 것으로 기대 한다.

목차 (Table of Contents)

• 1. 서 론··························································································· 1
• 1.1 연구의 배경········································································· 1
• 1.2 연구의 목적········································································· 3
• 1.3 연구의 범위 및 방법·························································· 4
• 2. 선행연구 고찰··········································································· 8
• 3. 일반측량성과도와 수치지도의 매칭·····································12
• 3.1 자료수집··············································································12
• 3.1.1 수치지도········································································12
• 3.1.2 지적도 및 임야도··························································13
• 3.1.3 경계측량 및 분할 성과도·············································13
• 3.1.4 일반측량성과도·····························································14
• 3.2 자료변환···············································································15
• 3.2.1 개념·················································································15
• 3.2.2 벡터편집(Vectorizing)·················································16
• 3.2.3 포맷변환(Drawing eXchange Format[DXF])········17
• 3.3 지적도와 현황측량도 매칭················································18
• 3.4 필지기준(도해법) 매칭·······················································20
• 3.4.1 도해법 원리와 개념·······················································20
• 3.4.2 도해법 매칭정확도 분석···············································21
• 3.4.3 지적도와 수치지도(토지특성도) 매칭························24
• 3.4.4 문제점 개선·····································································25
• 3.5 좌표등록················································································26
• 3.5.1 좌표계 전환·····································································26
• 3.5.2 좌표변환··········································································27
• 3.5.3 좌표등록(좌표부여)······················································29
• 3.5.4 축척계수(Scale factor)················································30
• 3.6 도곽기준 매칭·······································································31
• 3.6.1 수치지도(수치지형도)와 일반측량성과도 매칭········31
• 3.6.2 자료간 도곽기준 매칭···················································32
• 4. 수치지도 수정갱신····································································34
• 4.1 레이어의 분류······································································34
• 4.2 수정갱신요소 추출······························································38
• 4.3 수치지도의 수정갱신··························································39
• 5. 필지기준매칭 알고리즘 개발···················································41
• 5.1 기본구상················································································41
• 5.2 필지기준매칭 알고리즘······················································42
• 5.2.1 원리와 개념····································································42
• 5.2.2 흐름도·············································································43
• 5.3 중앙점기반 회전매칭 알고리즘(s.glee algorithm)·······44
• 5.3.1 매칭대상 폴리곤(Polygon) 선택································44
• 5.3.2 폴리곤의 중앙점계산 알고리듬···································44
• 5.3.3 회전단위(계급구간) 설정·············································48
• 5.3.4 중첩(Overlay)분석························································49
• 6. 결과 평가분석·············································································53
• 6.1 단계별 분석···········································································53
• 6.2 정확도 분석···········································································56
• 6.2.1 자료추출 및 적용····························································56
• 6.2.2 위치 정확성(Accuracy) 평가·······································57
• 6.2.3 모양 유사성(Similarity) 평가········································60
• 6.2.4 완전성(Completeness)평가·········································62
• 6.3 타당성 분석············································································63
• 7. 결론 및 제언·················································································67
• 7.1 실용화 선행과제····································································67
• 7.1.1 기술적 측면······································································67
• 7.1.2 법·제도적 측면·································································68
• 7.2 결론·························································································69
• 8. 참고문헌·······················································································72
• ABSTRACT ·················································································75
• 감 사 의 글 ···················································································77