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行政單位
研究發展處
師大學報:數理與科技類
師大學報:數理與科技類
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/180
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search.filters.author.Jung-Ming Wang, and Sei-Wang Chen
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search.filters.author.王俊明
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search.filters.author.陳世旺
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search.filters.subject.影像處理
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search.filters.subject.Image processing
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search.filters.subject.Partial background image
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search.filters.subject.Progressive background generation
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search.filters.subject.漸進式背景建構
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漸進背景影像的建構
(
國立臺灣師範大學研究發展處
,
2002-10-??
)
王俊明
;
陳世旺
;
Jung-Ming Wang, and Sei-Wang Chen
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在對靜態攝影機取得連續影像處理時,為了要能快速地偵測出影像中的前景物體,較簡單的方法,就是事先建構好背景影像,之後將連續輸入的影像和背景影像相減,即可快速地取得前景物。而建立背景影像時,若能事先淨空環境,則背景影像的建立並不困難;但是在某些運用,如交通監控,事先環境淨空並不可行。本文提供一種演算法,可以從非淨空的環境視訊中,漸進式地建立起環境的背景影像,又由於這種漸進式的機制,背景影像會隨著環境的變化,隨時自動地更新。過去的方法常將建構與更新的步驟分開,本文所提的方法則將兩者結合成一體,且可同時應用在單色及彩色影像上,目前實驗的結果相當符合人類的認知。
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