一种在MPEG压缩流上检测播音员镜头的快速算法

• 作者: 王伟强 高文
• 来源期刊: 计算机科学
• 学科: 工学
• 关键词: Anchor shot News video Video parsing
• 年，卷（期）: 2001,（12）
• 页码范围: 19-23
• 页数: 5页
• 分类号: TP39
• 字数: 5398字
• 语种: 中文
• DOI: 10.3969/j.issn.1002-137X.2001.12.006

摘要

Detecting anchor shots accurately is very improtant for automatically parsing news video and extracting meaningful news items. The paper proposes a fast anchor shot detection algorithm,which is based on backgroud choronminance and skin tone models. The attractive characteristics of the algorithminclude only simple computation involved. At the same time,it operates in MPEG compression domain,which makes the detection speed very fast. The algorithm was evaluated on a big test set containing more than 480000 frames and news video from two different TV stations. More than 98% accuracy and 100% recall have been gained. The experiment results also show the system has an average detection speed of 77.55 f/s. The experiments demonstrate the algorithm is a fast and effective one.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	王伟强	中科院计算所数字化技术实验室	4	10	2.0	3.0
2	高文	中科院计算所数字化技术实验室	7	59	3.0	7.0