| Background Extraction Method Based on Block Histogram Analysis for Video Image |
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| 作者姓名： | 李华 彭强 |
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| 作者单位： | School of Information Science & Technology, Southwest Jiaotong University, Chengdu 610031, China |
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| 基金项目： | The science and Technology Development Plan Project of Railway Ministry （No. 2003X040-A） and the Southwest Jiaotong University Science Foundation （ No. 2002A04）. |
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| 摘 要： | Introduction Withtherapiddevelopmentofvideosurveillance systemwhichisbasedoncomputervisionandimage processing,ithasbeenwidelyusedinsuchareasas shoppingcenters,airports,commercialbuildings,and congestedroads.Inmanycases,thepurposeofvideo surveillanceistode…
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| 关 键 词： | 视频监视 计算机显示 图像处理 柱状图 背景分析 |
| 文章编号： | 1005-2429（2005）02-0125-05 |
| 收稿时间： | 2004-02-21 |
Background Extraction Method Based on Block Histogram Analysis for Video Image |
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| Li Hua,Peng Qiang.Background Extraction Method Based on Block Histogram Analysis for Video Image[J].Journal of Southwest Jiaotong University,2005,13(2):125-129. |
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| Authors: | Li Hua Peng Qiang |
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| Abstract: | A novel method of histogram analysis for background extraction in video image is proposed, which is derived from the pixelbased histogram analysis. Not only the statistical property of pixels between temporal frames, but also the correlation of local pixels in a single frame is exploited in this method. When carrying out histogram analysis for background extraction, the proposed method is not based on a single pixel but on a 2×2 block that has much less computational quantities and can extract a sound background image from video sequence simultaneously. A comparative experiment between the proposed method and the pixel-based histogram analysis shows that the proposed method has a faster speed in background extraction and the obtained background image is better in quantity. |
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| Keywords: | Histogram Video surveillance Background estimation |
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