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研究生: 彭雨農
Yu-Nung Peng
論文名稱: 高速公路上鄰近車輛之危險動向分析
Critical Motion Analysis of Nearby Vehicles on Expressways
指導教授: 方瓊瑤
Fang, Chiung-Yao
學位類別: 碩士
Master
系所名稱: 資訊工程學系
Department of Computer Science and Information Engineering
論文出版年: 2008
畢業學年度: 96
語文別: 中文
論文頁數: 54
中文關鍵詞: 注意力圖像分割pattern注意焦點分類偏態
英文關鍵詞: Attention map segmentation, Pattern, Classification of focus of attention
論文種類: 學術論文
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  • 本篇主要為應用影像技術分析在高速公路上行駛時鄰近本車之車輛的危險動向。系統主要分為兩個步驟:注意力圖像分割(attention map segmentation)與注意焦點分類(classification of focus of attention)。注意力圖像分割主要是利用mean shift演算法求出各注意焦點之群聚點,判斷注意力圖像上的注意焦點個數,再利用注意力圖像之亮點與各注意焦點之群聚點間的亮度分佈情形將各個pattern分割出來,其中每個pattern都有一個注意焦點。在注意焦點分類步驟中,對於每個pattern計算其偏態(skewness)特徵值,作為分類時的輸入值,之後利用ART2類神經網路來做分類,最後應用模糊理論中的信心函數(confidence function)與模糊計量函數(fuzzy measure function)整合各個ART2類神經網路的結果以輸出最後分類的結果。

    關鍵字:注意力圖像分割、pattern、注意焦點分類、偏態。

    目 錄 圖目錄……………………………………………………………………………..... iii 第一章 緒論……………………………………………………………………..... 1-1 1.1研究背景與目的………………………...…………………….…………… 1-1 1.2相關研究……………………………...………………………….………… 1-2 1.3論文的架構………………………………...………………………….…… 1-6 第二章 鄰近車輛之危險動向分析系統…………………………………...…….. 2-1 2.1系統架構………………………..………...………………………………... 2-1 2.2 Mean shift……………..……………...……………………………...............2-3 2.2.1核心函數……………………...………………….……...…………….. 2-4 2.2.2 Mean shift演算法…………………...….…………………….……….. 2-5 第三章 注意力圖像分割…………………….…………………………………… 3-1 3.1 取樣……......………………………………………………………………. 3-1 3.2注意力圖像分割……………………………………...…...……………….. 3-5 第四章 注意焦點分類………………………………………………………...….. 4-1 4.1特徵向量擷取…………………………………………………………….... 4-1 4.2注意焦點分類………………...…………………………………….…...…. 4-6 4.2.1信心函數(confidence function)…………..…..…………………..…..... 4-8 4.2.2模糊計量函數(fuzzy measure function)…………...………………...... 4-9 4.2.3模糊整合(fuzzy integral)…………...……………….............................. 4-9 第五章 實驗…………………………………………………………………...….. 5-1 5.1 單一狀況之實驗結果……………...……………….………………..……. 5-1 5.2 複雜狀況之實驗結果……………………...………….…………….……...5-4 第六章 結論與未來工作………………………………………………………..... 6-1 6.1 結論……………...……………….………………..………………………. 6-1 6.2 未來工作……………………...………….…………….…………………...6-2 參考文獻…………………………………………………………………………... A-1

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