지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 김창석
- 발행연도
- 2015
- 저작권
- 부산대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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The importance of the visual inspection process has been magnified by the requirements of the modern manufacturing environments. We introduce a visual inspection system for a printed circuit board (PCB) using a CIELAB color space. To obtain calibrated Commission international de l''eclairage (CIE) color space images from RGB (red,green, and blue) images, it is necessary to derive an optimized conversion matrix of the imaging system. In this study, we obtained the images of in vitro standard color patch and PCB sample. To prove a precision of the system based on the optimized conversion matrix, the obtained data is compared with standard chromameter values.
목차
제 1 장 서 론 ·································································································· 11.1 연구배경 ·········································································································· 11.2 연구목적 ·········································································································· 3제 2 장 이론적 배경 ······················································································· 52.1 색 좌표 이론 ···································································································· 52.1.1 CIEXYZ 표색계 ·························································································· 62.1.2 CIELAB 표색계 ·························································································· 82.2 수학적 최적화 ································································································ 11제 3 장 이미징 시스템 구성 ···································································· 143.1 측정 이미징 시스템 설계 및 제작 ···························································· 143.1.1 이미징 시스템 제작 ················································································ 153.1.2 광원 안정성 및 측정부 최적화 ···························································· 163.1.3 최적화된 변환 행렬 획득 ······································································ 193.1.4 변환 행렬 정확성 평가 ·········································································· 213.2 측정 이미징 프로그램 제작 ········································································ 263.2.1 RGB Histogram Graph 분석 ······························································· 273.2.2 이진화 영상처리 및 이미지 변환속도 향상 ······································ 303.2.3 라플라시안 필터를 이용한 유효데이터 선정 ···································· 343.3 확산 반사 스펙트럼 분석 ············································································ 393.3.1 OSP층 두께 별 확산 반사 스펙트럼 분석 ········································ 403.3.2 솔더 페이스트 입자 크기 별 확산 반사 스펙트럼 분석 ················ 43제 4 장 결과 및 고찰 ·················································································· 474.1 CIELAB 색좌표로 변환된 이미지 ····························································· 474.2 CIELAB 색좌표 기반 PCB Ball pad 변색 분석 ·································· 49제 5 장 결론 ······································································································· 56참고문헌 ·············································································································· 58Abstract ·············································································································· 60
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