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研究生： 李柏逸
論文名稱： 劇院照片建置自動化之研究
A study on Automatic Cinemagraph
指導教授： 葉梅珍
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： 2012
畢業學年度： 100
語文別： 中文
論文頁數： 36
中文關鍵詞： 劇院照片 、動態分析
英文關鍵詞： Cinemagraph, Motion analysis
論文種類： 學術論文
相關次數： 點閱：63  下載：6 
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    • 劇院照片是2011年開始發展的一種新的照片型態，即一張照片中有某些區域是會動的，且該動態區域內影像的變化是連貫、合理、且能不斷重複的。手動製作劇院照片是一件費時耗工的工作，通常使用者必須拍攝好一段影片並利用影像處理軟體對影片中的每一張影像編修欲保留之動態區域，最後再將其合併。此外，如何選擇動態區域使得製作出的劇院照片更有趣、更吸引人亦是一個問題。現今對自動化建置劇院照片的研究之中，大多的方法會先找出影片中所有動態區域，進而讓使用者決定要保留哪一部分動態區域。本論文提出的方法著重於動態區域的選擇，以計算的方法自動篩選動態區域，選擇較為吸引人注意且使用者會感興趣的一塊區域。我們提出一個全自動化建置劇院照片的方法，讓劇院照片的製作更為簡易方便。使用者只須拍攝好影片即可製作出一張劇院照片。實驗結果顯示，我們提出的方法所選擇的動態遮罩區域大部分符合一般使用者的觀點。

    Cinemagraph was presented in 2011, which is a new type of media that contains one or a few dynamic regions presented in a continuous, seamless and looping manner. Manually creating cinemagraphs is usually tedious, where a user is required to carefully select and edit frames and regions to produce an interesting cinemagraph. Moreover, the task of selecting good dynamic regions itself is challenge for end users. There exist a few cinemagraph rendering tools but most of them are semi-automatic, and a user has to label the dynamic regions in the process. In this paper, we present a fully automatic approach; in particular, we emphasis on a computational approach to determine a region that may highly likely include interesting moving patterns and receive users’ attentions in a video. The method has been tested on several videos and the experiments show good results.

    中文摘要...................................................ii 英文摘要..................................................iii 致謝......................................................iv 目錄.......................................................v 附圖目錄...................................................vi 第一章 緒論 ................................................7 1.1 研究背景與動機 ..........................................7 1.2 系統架構 ...............................................8 1.3 論文架構 ...............................................9 第二章 文獻探討 ............................................10 2.1現有的劇院照片建置自動化技術 ...............................10 2.3 顯著區域偵測 ...........................................11 2.3 動態表徵法 ............................................12 2.3.1 光流法 ..............................................12 2.3.2 結構相似性測量 .......................................12 2.3.3 週期性運動偵測 .......................................13 第三章 方法及步驟 ...........................................15 3.1 制定動態區域選擇問題 ....................................16 3.2 擷取動態區域 ...........................................17 3.2.1 運動量最大區域 .......................................17 3.2.2 運動方向不同區域 ......................................20 3.2.3 運動方向一致區域 ......................................22 3.3 加速搜索動態區域 ........................................23 3.3.1 高效子視窗搜尋 .......................................23 3.3.2 界限函數 ............................................25 3.4 合併基底影像與動態區域影像 ...............................28 第四章 實驗結果 ............................................30 4.1 實驗設計 ..............................................30 4.2 實驗結果 ..............................................31 第五章 結論 ...............................................33 5.1 結論 .................................................33 5.2 未來工作 ..............................................33 參考文獻 ..................................................34

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