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頁籤選單縮合
| 題 名 | Content-based Video Data Retrieval=視訊資料的內涵式查詢 |
|---|---|
| 作 者 | 陳良弼; 劉志俊; 郭秋田; | 書刊名 | Proceedings of the National Science Council : Part A, Physical Science and Engineering |
| 卷 期 | 23:4 1999.07[民88.07] |
| 頁 次 | 頁449-465 |
| 分類號 | 312.1 |
| 關鍵詞 | 視訊資料; 查詢; Video databases; Content-based retrieval; Video indexing; Shot change detection; Video query processing; Key frame matching; Approximate query processing; Motion track; Temporal and Spatial relationships; 3D-strings; |
| 語 文 | 英文(English) |
| 英文摘要 | Many multimedia applications, such as the World-Wide-Web (WWW), video-on-demand (VOD), and digital library, require strong support of a video database system. In this paper, we survey various approaches to content-based video data retrieval. Compared with traditional keyword-based data retrieval, content-based retrieval provides a flexible and powerful way to retrieve video data. We discuss three approaches in depth. First, since video segmentation is an elementary task in video index construction, we discuss an approach to detect shot changes for video segmentation, which is based on the processing of MPEG compressed video data. Second, since a video object consists of a sequence of frames, the techniques for retrieving video objects based on the similarity of key frames are addressed. Third, we discuss a video query model and video query processing techniques based on the symbols in a video object. The notion of two- dimensional strings is extended to obtain three-dimensional strings (3D-Strings) for representing the spatial and temporal relationships among the symbols in both a video object and a video query. |
本系統中英文摘要資訊取自各篇刊載內容。