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科技與工程學院
機電工程學系
教師著作
教師著作
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/31266
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search.filters.author.李宗岳
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search.filters.author.葉榮木
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search.filters.author.蔡俊明
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search.filters.subject.color space
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search.filters.subject.face detection
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search.filters.subject.face feature
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search.filters.subject.skin color
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search.filters.subject.人臉偵測
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2006
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Author: search.filters.author.李宗岳
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自適性閥值的人臉偵測系統
(
2006-06-02
)
李宗岳
;
葉榮木
;
蔡俊明
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本篇文章提出一個簡單且強健的方法去偵測人臉的位置,由於複雜的背景嚴重影響到人臉偵測的成果。我們首先使用膚色分割和連通成分的方法找出人臉候選區、再使用色彩分析的方法從人臉候選區中去尋找臉部特徵(眼睛、嘴唇)。使用色彩的資訊可以減少檢測時間,不過在不同的光線下會有誤判的情況產生,所以我們用自適性的閥值來找出臉部特徵,針對不同的影像用不同閥值去做判斷,最後利用眼睛和嘴唇的幾何關係找到正確的人臉位置。實驗結果除了在臉部特徵被遮蔽的情況下會有偵測不到的狀況,其他情況都有良好的偵測率。
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