| 引用本文: | 文军,吴玲达,曾璞,等.新闻视频中基于“场景词汇”的故事单元相似度分析.[J].国防科技大学学报,2009,31(6):121-125.[点击复制] |
| WEN Jun,WU LingDa,ZENG Pu,et al.Analyzing Similarity of News Video Stories Based on “Scene Words”[J].Journal of National University of Defense Technology,2009,31(6):121-125[点击复制] |
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| 新闻视频中基于“场景词汇”的故事单元相似度分析 |
| 文军1,2, 吴玲达1, 曾璞1, 谢毓湘1 |
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(1.国防科技大学 信息系统与管理学院，湖南 长沙 410073;2.国防科技大学 理学院，湖南 长沙 410073)
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| 摘要: |
| 新闻视频中故事单元的相似度计算对于视频浏览、检索和跟踪故事单元等应用具有特别重要的意义。研究提出了一种利用“场景词汇”计算故事单元相似度的方法，将单独的关键帧作为一个完整“词汇”，将每个故事单元看作是一系列“场景词汇”描述的“文档”。在此基础上研究了“场景词汇”的特殊性，并设计了有效的“场景词汇”权重计算方法和故事单元相似度计算方法。实验显示，基于“场景词汇”的故事单元相似度计算方法能够比较好地贴近用户感官和实际应用需求。 |
| 关键词: 新闻视频 故事单元 相似度 场景词汇 |
| DOI： |
| 投稿日期：2009-03-25 |
| 基金项目:国家863计划资助项目(2009AA01Z335)；国家科技支撑计划资助项目(2007BAH14B01) |
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| Analyzing Similarity of News Video Stories Based on “Scene Words” |
| WEN Jun1,2, WU LingDa1, ZENG Pu1, Xie Yuxiang1 |
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(1.College of Information System and Management, National Univ. of Defense Technology, Changsha 410073, China;2.College of Science, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Analyzing similarity of news video stories is crucial for searching, retrieving, browsing and tracking news video stories. A method based on “scene words” is proposed for measuring the similarity of news stories. Each key frame is seen as a “word” and a news story is seen as a document which is represented by a sequence of “scene words”. In light of this, the particularity of “scene words” is investigated. An effective method to describe weight of words and calculating similarity of stories is presented. Experiment results show that the method based on “scene words” is closer to the sensory and requirement of users. |
| Keywords: news video story similarity scene words |
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