| 基于基色调的镜头边界检测方法 |
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| 引用本文： | 智敏, 蔡安妮. 基于基色调的镜头边界检测方法. 自动化学报, 2007, 33(6): 655-657. doi: 10.1360/aas-007-0655 |
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| 作者姓名： | 智敏 蔡安妮 |
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| 作者单位： | 1.内蒙古师范大学计算机与信息工程学院 呼和浩特 010020;;2.北京邮电大学电信工程学院 北京 100876 |
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| 摘 要： | 视频结构化组织是建立视频检索和浏览系统的基础，而镜头边界检测是视频结构化的第一步. 在本文中，我们提出了基于基色调的镜头边界检测方法. 该方法首先利用 I 帧的比特数信息，减少参与检测的 I 帧；然后在考虑基色调的基础上得到局部的自适应阈值；最后用双阈值方法检测镜头边界. 实验证明，该方法可以对长视频序列进行较好的镜头突变和渐变检测，并且减少了计算量，同时能够排除大物体运动和摇镜头对镜头检测的影响.
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| 关 键 词： | 镜头边界 基色调 自适应阈值 比特数 |
| 收稿时间： | 2005-09-14 |
| 修稿时间： | 2005-09-142006-08-14 |
Shot Boundary Detection with Main Color |
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| Zhi Min, Cai An-Ni. Shot Boundary Detection with Main Color. ACTA AUTOMATICA SINICA, 2007, 33(6): 655-657. doi: 10.1360/aas-007-0655 |
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| Authors: | Zhi Min Cai An-Ni |
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| Affiliation: | 1. Department of Computer, Inner Mongolia Normal University, Hohhot 010020;;;2. School of Telecommunications Engineering, Beijing University of Posts and Telecommunications, Beijing 100876 |
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| Abstract: | Shot boundary detection is one of the critical techniques in video browsing and indexing systems. In this paper, we propose a main color based shot boundary detection algorithm on DC images. We use the bit-rate information to decrease the number of I frames that take part in the shot change detection. Then we obtain local adaptive thresholds based on the main color of a segment of the video sequence. Finally, we detect shot change based on twin-comparison method. Experimental results show that our algorithm can detect shot boundary from a long video sequence with reduced computation, and at the same time solve the problems that are caused by object moving and camera panning in shot change detection. |
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| Keywords: | Shot boundary adaptive threshold bit-rate main color |
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