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基于脚本的内容视频多级时间分割图Graph Based Multilevel Temporal Segmentation of Scripted Content Videos |
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| 课程网址: | http://videolectures.net/gbr07_sakarya_gbmt/ |
| 主讲教师: | Ufuk Sakarya |
| 开课单位: | 土耳其科学技术研究委员会 |
| 开课时间: | 2007-07-12 |
| 课程语种: | 英语 |
| 中文简介: | 本文研究了一种基于图的脚本内容视频多级时间分割方法。在每一级分割中,利用帧串的时空内容,构造出一个连续视频帧串的相似度矩阵。通过使用脚本内容的先验信息来估计每个帧字符串的强度因子。根据由强度因子导出的强度函数重新计算出的相似矩阵,实现了加权无向图结构。该图被划分为代表视频片段的簇。由此产生的结构定义了一个分层分割的视频树。比较了不同类型的脚本内容视频的性能结果。 |
| 课程简介: | This paper concentrates on a graph-based multilevel temporal segmentation method for scripted content videos. In each level of the segmentation, a similarity matrix of frame strings, which are series of consecutive video frames, is constructed by using temporal and spatial contents of frame strings. A strength factor is estimated for each frame string by using a priori information of a scripted content. According to the similarity matrix reevaluated from a strength function derived by the strength factors, a weighted undirected graph structure is implemented. The graph is partitioned to clusters, which represent segments of a video. The resulting structure defines a hierarchically segmented video tree. Comparative performance results of different types of scripted content videos are demonstrated. |
| 关 键 词: | 脚本; 计算机科学; 矩阵 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-12-04:lxf |
| 阅读次数: | 70 |
