研究生: |
栢慶瑞 Ching-Ruei Bai |
---|---|
論文名稱: |
語言學習之影音索引技術研究 Research on Video Indexing of Language Learning |
指導教授: |
葉耀明
Yeh, Yao-Ming |
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: | 64 |
中文關鍵詞: | 影音索引 、語言學習 、可延伸標記語言 |
英文關鍵詞: | Video Indexing, Language learning, XML |
論文種類: | 學術論文 |
相關次數: | 點閱:114 下載:7 |
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近年來網路的使用已成為人們生活中重要的一部份,由於網路頻寬的改善,及多媒體技術的蓬勃發展,在應用上更為多元。線上分享影音資訊已成為網路使用者之間溝通的重要橋梁,這些被分享的多媒體資訊已不僅限於娛樂、生活相關的內容。在此趨勢下,有許多教育單位將錄製的教材發布至網路上,提供網路使用者透過影片的方式學習。雖然在網路上影片取得容易,但是若想觀看影片中的特定段落,則需花費時間搜尋,因此本研究的主要探討議題為實現影音資料庫索引系統,利用索引技術增加學習影片內容的搜尋效率及準確度以及使用網頁技術製作出高互動性的瀏覽系統,提供學習者一個良好的學習環境。
本研究主要以Silverlight、JSP、XML、eXist等技術實現影音資料庫索引系統。我們針對教學用的多媒體材料影音呈現問題進行改善,對影片內容作分析,找出影片中的各個主題,依照主題分成數個段落,並為各主題擷取關鍵畫面作為縮圖並建立索引。接著我們以Silverlight網頁技術建構出簡易操作的使用者介面,搭配XML的結構儲存影片索引資訊,並以eXist資料庫有效管理XML文件。最後,結合JSP語言作影片索引搜尋的動作,不只可以同時搜尋到多部完整的影片內容,也可利用關鍵字搜尋影片片段,使查詢影片段落更快速,搭配高互動性網頁瀏覽系統呈現,增加學習效率。
Internet has become an important part of people’s life in recent years. Due to the improvement of the network bandwidth and the vigorous development of multimedia technology, there are more diverse applications related to online sharing audio and video contents. Recently, many educational institutions post recorded video materials to networks for users to learn through internet. However, it’s easy to acquire language learning materials through internet, but one still need to spend lots of time searching in video if he wants to watch a specific video segment. Therefore, this study focuses on issues for video indexing, develops a video content indexing system which aims at providing a good learning environment that has an efficient searching for video segments (shots) and an interactive user interface.
In this thesis, we use Silverlight, JSP, XML and eXist to develop a Video Indexing System. We improve the multimedia teaching material problem, analysis the video content to identify the different themes in the film, and capture key frames for each shot as a thumbnail. Then we construct the user interface by Microsoft Silverlight , store the video segment information by XML format managed in eXist database. Finally, querying the index by JSP language, not only can search multiple video contents simultaneously, but also can provide video segments to be searched by keyword.
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