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研究生:賴維霖
研究生(外文):Wei-Lin Lai
論文名稱:虹膜定位及虹膜溫度與酒精濃度之轉換
論文名稱(外文):THERMAL IMAGE-BASED ALCOHOL CONCENTRATION MEASUREMENT WITHIN IRIS AREA
指導教授:陳敦裕陳敦裕引用關係
指導教授(外文):Duan-Yu Chen
口試委員:蘇志文康立威
口試委員(外文):Chih-Wen SuLi-Wei Kang
口試日期:2018-01-02
學位類別:碩士
校院名稱:元智大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2017
畢業學年度:106
語文別:中文
論文頁數:37
中文關鍵詞:熱像圖虹膜識別吹氣酒精濃度
外文關鍵詞:Thermal imageiris detectionblood alcohol concentration
相關次數:
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  • 下載下載:1
  • 收藏至我的研究室書目清單書目收藏:0
本文提出了一種非接觸型酒精檢測系統,其包括新的虹膜檢測及眼溫和酒精的轉換方法,此方法透過FLIR熱像儀拍攝熱影像圖以取得虹膜溫度,此方法可以在任何地方進行酒精檢測。為了能夠在不同光源環境中獲得虹膜圖像,並提出改善亮度之方法以減少虹膜提取的錯誤率。在本研究中,首先需要進行虹膜定位來獲得虹膜溫度,其提出的虹膜定位方法包括兩個步驟:眼睛提取和虹膜提取,眼睛提取方法,是使用FLIR熱像儀獲得可見光圖像。虹膜提取方法,是由可見光圖像中獲得虹膜定位。定位的方法是透過canny邊緣功能獲得邊緣圖像,再進行模板匹配並切割匹配區域,最後使用霍夫圓轉換獲得虹膜圖像。此實驗結果表示我們提出的熱影像方法與市售酒測儀器的比較相對於中階的效果,誤差值平均約 0.03365 mg/L。
This paper proposes a non-contact alcohol detection system comprising new iris detection and an eye temperature and alcohol conversion. Through the FLIR thermal imager capture iris thermal images to get eye temperature. In this study, the authors need to get eye temperature, first of to do iris localization. The proposed iris localization method consists of two steps: eye extraction and iris extraction. Eye extraction method, FLIR thermal imager is used to get visible light image. Iris extraction method, iris localization obtained in visible light image. Through canny edge function to get edge image, to do chamfer matching and cut down the matching area, and finally use Hough circle transform to obtain iris image. Experimental results reveal that our proposed thermal image-based method performs well as the commercial device and thus show the feasibility of its use in real-world environment.
目錄
摘 要 I
ABSTRACT II
誌 謝 III
1. 緒論 1
2. Proposed Method 4
2.1 虹膜定位方法 6
2.1.1 原始圖像 6
2.1.2 直方圖均衡法[56][59] 7
2.1.3 曝光補償 (+4.0 EV) [38][39][40][63] 8
2.1.4 高斯模糊[41][42][43][61][62] 10
2.1.5 中值濾波器[44][45][63] 11
2.1.6 Canny 邊緣檢測[51][52][64] 2
2.1.7 模板匹配與裁剪匹配區域[49][50] 5
2.1.8 將深色部分填滿黑色 8
2.1.9 霍夫圓轉換[51][65] 8
2.2 讀取FLIR圖像溫度方法 11
2.3 虹膜溫度與呼氣酒精含量轉換[53] 13
3. 實驗 15
3.1 實驗流程圖: 15
3.1.1 5分鐘內喝完120ml梅酒(21% Vol.) 17
3.1.2 開始拍攝眼睛 17
3.1.3 透過市售呼氣酒測器,每5分鐘量測一次呼氣酒精濃度 17
3.1.4 呼氣酒精濃度為零時,停止拍攝 17
3.2 後續分析流程: 17
3.2.1 透過自製軟體讀取圖像溫度 18
3.2.2 將每5分鐘溫度做平均,並過濾過高及過低的溫度 19
3.2.3 將平均溫度及呼氣酒精濃度繪製至圖表上 19
3.3 實驗結果 19
3.3.1 虹膜定位 19
3.3.2 虹膜溫度與呼氣酒精濃度轉換 21
3.4 實驗方法的應用 24
3.4.1 FLIR與智慧型手機連線 25
3.4.2 開啟應用程式(App) 26
3.4.3 將眼睛對準FLIR鏡頭 26
3.4.4 開始拍攝 27
3.4.5 拍攝8-10秒鐘 28
3.4.6 顯示量測酒精結果 29
4. 結論 30
5. 參考文獻 31
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