数字正射影像镶嵌的质量评价方法

doi:10.3969/j.issn.0255-8297.2018.03.006

应用科学学报 ›› 2018, Vol. 36 ›› Issue (3): 461-470.doi: 10.3969/j.issn.0255-8297.2018.03.006

数字正射影像镶嵌的质量评价方法

张莎莎, 王树根

武汉大学遥感信息工程学院, 武汉 430079

收稿日期:2017-04-21 修回日期:2017-06-12 出版日期:2018-05-31 发布日期:2018-05-31
通信作者: 王树根,教授,博导,研究方向:数字摄影测量与空间信息认知,E-mail:wangsg@whu.edu.cn E-mail:wangsg@whu.edu.cn
基金资助:
国家自然科学基金（No.41301519）资助

Quality Evaluation Method for the Results of Digital Orthophoto Mosaic

ZHANG Sha-sha, WANG Shu-gen

School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China

Received:2017-04-21 Revised:2017-06-12 Online:2018-05-31 Published:2018-05-31

摘要/Abstract

摘要：

针对数字正射影像镶嵌结果的质量评价，提出了一种基于缓冲区影像的、兼顾辐射一致性和几何一致性指标的定量评价方法.首先以镶嵌线为中心建立缓冲区，分别从镶嵌线对应的左右影像中提取缓冲区影像，然后以此为基础进行质量评价指标的计算，其中辐射一致性评价采用灰度反差系数及统一亮度分布等指标，几何一致性评价采用加速鲁棒特征（speeded-up robust features，SURF）匹配点的偏移距离等指标，从而得到镶嵌质量的评价结果.分别采用德国Vaihingen地区的36幅城区正射影像和中国湖北省恩施地区的36幅山区正射影像为实验数据集，对由ArcGIS、OrthoVista和DPGrid 3种商业软件得到的影像镶嵌结果进行了质量评价，验证了该方法的有效性.

关键词: 质量评价, 数字正射影像, 镶嵌, 辐射一致性, 几何一致性

Abstract:

For the quality evaluation of the Digital Orthophoto mosaic, a quantitative evaluation method, which is based on the buffer images and includes both the radiometric consistency and geometric consistency indexes, is presented in this paper. Firstly, the buffer zones are built around the seamline, and the buffer images are obtained from the left and right images corresponding to the seamline. Then based on this, the quality evaluation indexes can be calculated, among them, the radiometric consistency is mainly evaluated by the indexes of the gray contrast coefcient and the Uniform Intensity-Distribution, the geometric consistency is mainly evaluated by using the offset distance of the SURF (speeded-up robust features) feature matching points. Finally, the evaluation results of mosaic quality are obtained. Using 36 urban orthophotos of the Vaihingen area of Germany and 36 mountain orthophotos of the Enshi area of China as an experiment data set, the quality evaluation was carried out for the mosaic results respectively obtained by three business softwares of ArcGIS, OrthoVista and DPGrid, which verifes the effectiveness of the proposed method.

Key words: digital orthophoto, quality evaluation, radiometric consistency, mosaic, geometric consistency

中图分类号:

P237

张莎莎, 王树根. 数字正射影像镶嵌的质量评价方法[J]. 应用科学学报, 2018, 36(3): 461-470.

ZHANG Sha-sha, WANG Shu-gen. Quality Evaluation Method for the Results of Digital Orthophoto Mosaic[J]. Journal of Applied Sciences, 2018, 36(3): 461-470.

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数字正射影像镶嵌的质量评价方法

Quality Evaluation Method for the Results of Digital Orthophoto Mosaic

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