標題: | Motion flow-based video retrieval |
作者: | Su, Chih-Wen Liao, Hong-Yuan Mark Tyan, Hsiao-Rong Lin, Chia-Wen Chen, Duan-Yu Fan, Kuo-Chin 資訊工程學系 Department of Computer Science |
關鍵字: | motion analysis;video retrieval |
公開日期: | 1-十月-2007 |
摘要: | In this paper, we propose the use of motion vectors embedded in MPEG bitstreams to generate so-called "motion flows", which are applied to perform video retrieval. By using the motion vectors directly, we do not need to consider the shape of a moving object and its corresponding trajectory. Instead, we simply "link" the local motion vectors across consecutive video frames to form motion flows, which are then recorded and stored in a video database. In the video retrieval phase, we propose a new matching strategy to execute the video retrieval task. Motions that do not belong to the mainstream motion flows are filtered out by our proposed algorithm. The retrieval process can be triggered by query-by-sketch or query-by-example. The experiment results show that our method is indeed superb in the video retrieval process. |
URI: | http://dx.doi.org/10.1109/TMM.2007.902875 http://hdl.handle.net/11536/10248 |
ISSN: | 1520-9210 |
DOI: | 10.1109/TMM.2007.902875 |
期刊: | IEEE TRANSACTIONS ON MULTIMEDIA |
Volume: | 9 |
Issue: | 6 |
起始頁: | 1193 |
結束頁: | 1201 |
顯示於類別: | 期刊論文 |