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研究生: 高偉哲
Wei-Jeh Kao
論文名稱: 自動化高空間動態範圍監控系統
Auto Surveillance System with High Spatial Dynamic Range
指導教授: 孫慶成
口試委員:
學位類別: 碩士
Master
系所名稱: 理學院 - 光電科學與工程學系
Department of Optics and Photonics
論文出版年: 2019
畢業學年度: 108
語文別: 中文
論文頁數: 85
中文關鍵詞: 監控系統光學變焦
相關次數: 點閱:12下載:0
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  • 在本論文中,我們利用分光鏡結合廣角相機和望遠相機,製作出一個高空間動態範圍監控系統,相較於以往傳統監控系統數位放大影像的方式,此系統不僅能透過廣角相機達到大範圍的監測,也能根據使用者的需求,透過望遠相機和分光鏡的系統,以光學放大影像的方式,自動取得各區域高解析度的影像。
    為了達成此監視系統,本論文透過已知廣角端像素位置和視角,計算分光鏡旋轉角度,並透過計算分光鏡旋轉角度與分光鏡成像,來完成望遠相機影像的校正,最後實際結合人臉辨識系統和自動化程式,達成自動化的高空間動態範圍監控系統。


    In this thesis, we combine beam splitter with wide-angle and telephoto camera to design an auto surveillance system with high spatial dynamic range. This system not only can have wide view but also due to the combination of beam splitter and telephoto camera, we can get a high resolution image of what we’re interested at the same time. Different from traditional surveillance system using digital zoom to get the details of the image, this system automatically obtains higher quality image without losing any resolution by optical zoom technique.
    We calculate the rotation angle of beam splitter with wide-angle image’s pixel position and field of view first, then use the rotation angle to adjust the image we get from telephoto camera, and last, we combine face detection and automatic control program to this system to accomplish this auto surveillance system with high spatial dynamic range.

    目錄 摘要 II Abstract III 致謝 IV 目錄 VI 圖目錄 IX 表目錄 XIII 第一章 緒論 1 1-1 研究背景 1 1-2 監控系統發展進程 4 1-2-1 磁帶錄影式類比閉路電視 (VCR-based Analog CCTV Systems) 5 1-2-2以網路攝影機為基底之網路攝影系統(Network Camera-Based Network Video Systems) 6 1-2-3 人工智慧監控系統 (Artificial Intelligence Surveillance System) 8 1-3 研究動機 10 1-4 論文架構 11 第二章 基礎原理 12 2-1 反射定律 12 2-2 影像旋轉 13 2-3 數位變焦 (Digital Zoom) 18 2-4 光學變焦 (Optical Zoom) 18 2-5 相機視角 (Field of View, FOV) 20 2-6 空間帶寬乘積 (Space-bandwidth Product) 23 第三章 高動態範圍監控系統 27 3-1 系統架構說明 27 3-2 望遠端相機位置、分光鏡大小與廣角端視角之關係 28 3-3 分光鏡角度定義 30 3-4 影像方位和分光鏡旋轉角度運算 34 3-5 影像旋轉 37 3-6 總結 38 第四章 自動化高動態範圍監控系統實驗 39 4-1 自動化高動態範圍監控系統實驗架設 39 4-2 人臉偵測 42 4-3 自動化與分光鏡旋轉 45 4-4 影像旋轉之修正與影像結合 47 4-5 光學放大率 53 4-6 架構縮小化 54 4-7 總結 59 第五章 結論 60 參考文獻 62 中英文名詞對照表 66

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