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통신 가능한 다중 코어 기반의 병렬화된 영역 성장 기법
DC Field | Value | Language |
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dc.contributor.advisor | 신영길 | - |
dc.contributor.author | 김도현 | - |
dc.date.accessioned | 2017-07-14T02:37:39Z | - |
dc.date.available | 2017-07-14T02:37:39Z | - |
dc.date.issued | 2013-02 | - |
dc.identifier.other | 000000008829 | - |
dc.identifier.uri | https://hdl.handle.net/10371/122714 | - |
dc.description | 학위논문 (석사)-- 서울대학교 대학원 : 전기·컴퓨터공학부, 2013. 2. 신영길. | - |
dc.description.abstract | 관심 영역을 분할하는 것은 영상을 분석하기 위해 하는 선행 작업으로
많이 쓰이는 방법이다. 그러나 의료 영상 기기들의 정밀도가 높아져 영 상 데이터의 크기가 커지면서 분할에 적지 않은 시간이 걸린다. 이를 병 렬적으로 처리할 수 있다면 시간이 단축되어 이러한 문제점을 해결할 수 있다. 본 논문에서는 영상 분할 기법 중 하나인 영역 성장 기법(Region Growing)을 병렬적으로 처리하는 방법을 제안한다. 영역 성장 기법은 문 제 영역의 크기가 정해져 있지 않고, 시간에 따라 변하기 때문에 일반적 인 데이터 병렬 처리 방법을 적용하는 것이 용이하지 않다. 본 논문에서 는 이를 코어 간 통신이 가능한 다중 SRP 서브 시스템의 특성을 이용하 여 가속하는 기법을 제안한다. 그리고 초기에 코어마다 작업을 균등하 고, 빠르게 분배하기 위해 순환 순서 방식(Round Robin)이 아닌 새로운 작업 전파 전략을 사용한다. 실험 결과, 단일 코어 환경과 비교했을 때 약 10.98배의 속도 향상이 있었다. | - |
dc.description.tableofcontents | 1. 서론 ····················································································································1
2. 관련 연구 ··········································································································3 2.1. 영역 성장 기법 ·······················································································3 2.2. 영역 포함 결정 방식 ·············································································4 2.3. 다중 SRP 서브 시스템 ···········································································5 3. 다중 SRP 서브 시스템을 이용한 영역 성장 기법 개발 ··························6 3.1. 다중 코어 환경에서의 영역 성장 기법 ·············································6 3.2. 단위 데이터 전송 ···················································································9 3.3. 다중 코어 환경에서의 종료 조건 ·····················································10 4. 실험 결과 및 분석 ························································································11 4.1. 단일 코어 환경 실험 결과 ·································································13 4.2. 다중 코어 환경 실험 결과 ·································································13 4.3. CPU와의 결과 비교 ··············································································17 5. 결론 및 향후 연구 방향 ··············································································19 5.1. 결과 정리 및 요약 ···············································································19 5.2. 성능 향상을 위한 향후 연구 방향 ···················································19 참고문헌 ···············································································································21 | - |
dc.format | application/pdf | - |
dc.format.extent | 385139 bytes | - |
dc.format.medium | application/pdf | - |
dc.language.iso | ko | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject.ddc | 621 | - |
dc.title | 통신 가능한 다중 코어 기반의 병렬화된 영역 성장 기법 | - |
dc.type | Thesis | - |
dc.description.degree | Master | - |
dc.citation.pages | ⅲ, 24 | - |
dc.contributor.affiliation | 공과대학 컴퓨터공학과 | - |
dc.date.awarded | 2013-02 | - |
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