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科技與工程學院
機電工程學系
學位論文
學位論文
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/73894
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search.filters.author.Tai-Jung Kuo
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search.filters.author.郭泰榕
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search.filters.subject.乳房X光影像
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search.filters.subject.Feature Extraction
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search.filters.subject.Mammography
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search.filters.subject.Medical Image Identification Systems
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search.filters.subject.Self-Organization Neural Network
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自組性類神經網路應用於乳房X光影像之偵測
(
2007
)
郭泰榕
;
Tai-Jung Kuo
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醫學影像的研究,從早期的X光片、超音波顯像,到現在的核磁共振(MRI)、電腦斷層掃瞄(CT),使得全世界在醫學技術及醫療品質有了大幅的提昇。然而在國內,此等醫療技術的應用仍大量仰賴國外高科技產品的輸入,例如MRI的掃描器,仍是完全倚靠國外的輸入;相關的使用軟體也是購自國外。為了解決此問題,並降低全民醫療成本,實有必要自行發展醫學影像辨認系統。本論文結合圖形識別與類神經網路之演算法則,提出一套改善乳房X光影像的辨認技術,以供乳癌診斷參考。 本論文所提出的概念,主要利用自組性類神經網路(SOM)的演算法則,實施特徵萃取、分類定義及聚類的工作,使乳癌的鈣化組織與腫瘤區塊較準確的顯示出來,並配合影像處理之分析,達到提升辨識速度及診斷準確度的目標。所開發出來的影像處理工具箱,包括影像濾波、SOM特徵擷取與影像邊界描述等。經由本研究的模擬實驗後,在運算複雜度與速度上,均已獲得改善。
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