| 利用资源三号卫星影像阴影提取建筑容积率 |
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| 引用本文： | 霍少峰,顾行发,占玉林,张文豪.利用资源三号卫星影像阴影提取建筑容积率[J].武汉大学学报(信息科学版),2018,43(3):444-450. |
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| 作者姓名： | 霍少峰 顾行发 占玉林 张文豪 |
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| 作者单位： | 1.中国科学院遥感与数字地球研究所, 北京, 100101 |
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| 基金项目： | 国家自然科学基金41371416国家自然科学基金41471310高分重大专项Y4D00100GF“十二五”民用航天预研Y1K00200KJ |
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| 摘 要： | 如何快速准确地确定建筑容积率是当前研究的热点，建筑物高度是容积率提取的基础。在传统的基于阴影的高度反演技术的基础上，引入了一种高度校正模型，提高了高度反演的精度。利用面向对象技术从资源三号卫星影像中获取建筑物的阴影特征，采用高度校正模型反演了高度信息，进而估算了建筑物的楼层数量，结合建筑面积估算出了容积率。以楼层数为单位进行实地抽样验证，发现高度校正后的精度由90.213%提高到了92.375%，证明了该模型的有效性。
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| 关 键 词： | 资源三号卫星影像 阴影 容积率 精度分析 |
| 收稿时间： | 2015-05-17 |
Extracting Building Plot Ratio with Shadow of ZY-3 Image |
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| Institution: | 1.Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China2.University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The plot ratio is an important index of urban land development intensity, how to estimate the plot ratio quickly and accurately has been a hot issue. Building height is the base of extracting the plot ratio, according to traditional height extracting based on the shadow, introduced a height correct model and improved the calculation accuracy effectively. Based on ZY-3 image, extracted the shadow features by using object-oriented technology, calculated the building height through the height correct model, got the floor number and extracted the plot ratio combined with the area of the buildings and residential district. Finally, the validating result based on the floor number shows that the accuracy of estimating floor-number has increased from 90.213% to 92.375% after the height correct model, which has demonstrated the validity and necessity of this model and the prospecting applications of ZY-3 image in extracting the plot ratio. |
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