| 夏玉华,巩海梅.基于字幕文本提取的讲座视频快速浏览技术探讨[J].数字图书馆论坛,2014,(4):43~48 |
| 基于字幕文本提取的讲座视频快速浏览技术探讨 |
| Quick Browsing Approaches to Lecture Videos Based on Caption Text Extraction Algorithms |
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| DOI： |
| 中文关键词: 讲座视频;快速浏览;字幕文本提取 |
| 英文关键词: Lecture Videos;Quick Browsing;Caption Text Extraction |
| 基金项目:本研究得到国家自然科学基金项目“基于感知哈希和流形降维的视频复制检测技术研究”（编号61001180）资助。 |
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| 摘要点击次数: 2002 |
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| 中文摘要: |
| 图书馆中的视频资源越来越丰富，为使读者能够快速地从海量的视频资料中找出想要的视频，并且准确地从视频中定位到想要的段落，文章根据讲座视频字幕位置相对固定的特点，采用帧差法提取字幕文本，通过对字幕文本的识别，将检索词与视频内容联系起来，进而实现读者快速浏览并定位视频段落的目的。 |
| 英文摘要: |
| With the enrichment of videos in library, in order to help readers to find the exact video from huge number of videos and locate the required segments in the video is essential. In this paper, we propose a scheme, which utilizes the algorithm of frame difference to extract caption text based on the characteristics of its stationary position and bridge the index words to video content via the extracted caption text. Simulations show that the proposed scheme can help readers to locate the required video segments quickly and effectively. |
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