| 基于整体变分模型的影像阴影检测算法研究 |
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| 引用本文： | 王树根,王军利,王爱萍.基于整体变分模型的影像阴影检测算法研究[J].武汉大学学报(信息科学版),2006,31(8):663-666. |
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| 作者姓名： | 王树根 王军利 王爱萍 |
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| 作者单位： | 武汉大学遥感信息工程学院,武汉市珞喻路129号430079 |
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| 摘 要： | 将影像上普遍存在的阴影视为图像退化的一种特殊形式，以整体变分模型为基础，以影像上阴影区域亮度普遍较暗且较均匀、阴影区域和非阴影区域之间的反差普遍较大的特点为约束，导出了整体变分模型用于影像上阴影检测的基本算法。通过对若干幅实际影像的阴影检测实验表明，本文算法对灰度影像和彩色影像上阴影区域的检测是有效的。
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| 关 键 词： | 整体变分 阴影检测 阴影区域提取 |
| 文章编号： | 1671-8860(2006)08-0663-04 |
| 修稿时间： | 2006年4月28日 |
Shadow Detection and Extraction from Imagery Based on Total Variation |
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| WANG Shugen.Shadow Detection and Extraction from Imagery Based on Total Variation[J].Geomatics and Information Science of Wuhan University,2006,31(8):663-666. |
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| Authors: | WANG Shugen |
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| Institution: | WANG Shugen~ |
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| Abstract: | The shadow phenomenon on the imagery is treated as a special kind of image degradation,then,the following two restrictions: 1) shadow region on the imagery usually has low brightness;2) a great contrast are take into account usually exists between shadow region and non-shadow region on the imagery.On the basis of these analyses and the general principle of total variation,an TV model based algorithm of shadow detection and extraction on imagery is presented.After the experiments with several real images,it shows that the total variation based shadow detection algorithm is valid both for the color images and the black and white images. |
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| Keywords: | total variation shadow detection shadow region extraction |
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