| 融合纹理特征和阴影属性的阴影检测方法 |
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| 引用本文： | 余孟泽,刘正熙,骆键,杨丹.融合纹理特征和阴影属性的阴影检测方法[J].计算机工程与设计,2011,32(10):3431-3434. |
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| 作者姓名： | 余孟泽 刘正熙 骆键 杨丹 |
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| 作者单位： | 四川大学计算机学院,四川成都,610065 |
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| 基金项目： | 国家973重点基础研究发展计划基金项目(2009CB320803) |
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| 摘 要： | 为了解决智能视频监控中阴影对目标检测、跟踪和识别的影响,提出了一种融合纹理和阴影属性的阴影检测去除算法。分析了像素点在阴影覆盖前后它的纹理变化规律,改进了LBP算子对噪声敏感的缺点,根据像素点基于改进LBP算子的纹理值在当前帧和背景帧的差异检测出候选阴影区域。根据光照模型分析得到阴影点具有相同的亮度比值,根据阴影的亮度比值统计数据排除非阴影点,并在亮度比值空间做区域生长得到完整的阴影区域。实验结果表明,该方法能够快速、准确地检测出重阴影和浅阴影。
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| 关 键 词： | 阴影检测 混合高斯模型 LBP算子 光照模型 亮度比值空间 |
Moving cast shadow detection based on texture and shadow property |
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| YU Meng-ze,LIU Zheng-xi,LUO Jian,YANG Dan.Moving cast shadow detection based on texture and shadow property[J].Computer Engineering and Design,2011,32(10):3431-3434. |
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| Authors: | YU Meng-ze LIU Zheng-xi LUO Jian YANG Dan |
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| Affiliation: | YU Meng-ze,LIU Zheng-xi,LUO Jian,YANG Dan(College of Computer Science,Sichuan University,Chengdu 610065,China) |
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| Abstract: | After analyzing the texture and color property of shadow points,an optimization shadow detection algorithm is proposed.Tthe new approach combines local texture and the color information to detect shadow.Firstly,in order to represent texture better,LBP is modified,and then the improved LBP is used to obtain candidate shadow region.Secondly,the mean and variance of the brightness ratio of candidate shadow region is calculated,the statistic is used to remove non-shadow points.Finally,a complete shadow region i... |
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| Keywords: | shadow detection mixture of Gaussian local binary pattern illumination model brightness ratio space |
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