목차

제 1 장 서 론 ···················································································· 1
1.1. 연구 배경 및 필요성 ··············································································· 1
1.2. 연구 목적 및 내용 ··················································································· 4
1.3. 논문의 구성 ······························································································· 6
제 2 장 관 련 연 구 ·············································································· 7
2.1. 유두 검출 ··································································································· 7
2.2. 흉근층 검출 ······························································································· 9
제 3 장 유두 자동 검출 기법 ···························································· 11
3.1. 왜도 분석 기반의 관상면 슬랩-평균투영 영상 생성 ····················· 13
3.1.1. 슬라이스 영상 자동 선정 ······························································ 13
3.1.2. 관상면 슬랩-평균투영 영상 생성 ················································ 16
3.2. 허프 변환 기반의 유두/유륜 위치화 ·················································· 17
3.2.1. 에지 검출 ·························································································· 17
3.2.2. 유두/유륜 위치화 ············································································· 19
3.3. 누적확률에 따른 유두 검출 ································································· 21
3.3.1. 유두 후보 영역 검출 ······································································ 21
3.3.2. 유두 검출 ·························································································· 22
제 4 장 흉근층 및 유선 조직 자동 검출 기법 ······························ 25
4.1. 3차원 판형 강화 필터링을 통한 늑골 그림자 강화 ······················· 27
4.1.1. 늑골 그림자-늑간 밝기값 대비 강화 ·········································· 27
4.1.2. 늑골 그림자 강화 ············································································ 29
4.2. 누적확률에 따른 늑간 및 소형 지방 영역 제거 ····························· 32
4.2.1. 늑간 영역 제거 ················································································ 32
4.2.2. 소형 지방 영역 제거 ······································································ 36
4.3. 형태 및 방향성 정보를 이용한 지방 영역 제거 및 흉근층 검출 ·40
4.3.1. 구형 지방 영역 제거 ······································································ 40
4.3.2. 관형 및 판형 지방 영역 제거 및 흉근층 검출 ························ 43
4.4. 군집화 기반의 유선 조직 검출 ··························································· 46
4.4.1. 초기 군집 산정 ················································································ 46
4.4.2. 유선 조직 검출 ················································································ 48
제 5 장 실험 및 결과 ·········································································· 49
5.1. 유두 검출 실험 및 결과 ······································································· 49
5.1.1. 실험 데이터 ······················································································ 49
5.1.2. 정성적 평가 결과 ············································································ 50
5.1.3. 정량적 평가 결과 ···················