Height Profile Estimation of Power Lines Based on Two-Dimensional CSAR Imagery
Height Profile Estimation of Power Lines Based on Two-Dimensional CSAR Imagery
复制标题
基于二维CSAR图像的电力线高度剖面估计
DOI：
10.1109/lgrs.2015.2512285
复制
发表时间：
2016
影响因子：
4.8
通讯作者：
Hong Wen
中科院分区：
文献类型：
--
作者：
Yu Lingjuan;Lin Yun;Li Yang;Wang Jianfeng;Hong Wen
在圆合成孔径雷达（CSAR）工作模式下，二维图像包含了目标的三维空间信息。这封信描述了一种尝试，以估计高度略有变化的电力线的高度轮廓的基础上2-D CSAR图像。首先，根据恒定高度电力线二维CSAR图像的特点，推导出电力线高度的近似计算公式。此公式也可用于计算几条具有相同恒定高度的电力线的高度。其次，提出了一种三步处理方法，用于高度变化较小的电力线的高度轮廓估计。第一步是自动提取电力线区域。第二步，根据推导出的近似公式，求出输电线的初始高度。第三步是估计电力线的最终高度轮廓。最后，实验结果表明，2-D的电力线的成像结果略有变化的高度时，所提出的三步方法估计的高度轮廓被使用时，很好地集中。
In circular synthetic aperture radar (CSAR) mode, a 2-D image contains 3-D spatial information about the imaged targets. This letter describes an attempt to estimate the height profiles of power lines with slightly varying heights based on 2-D CSAR imagery. First, according to the characteristics of a 2-D CSAR image of a power line with constant height, an approximate formula is deduced to calculate the height of the power line. This formula can also be used to calculate the height of several power lines with the same constant height. Second, a three-step processing method is proposed for height profile estimation of power lines with slightly varying heights. The first step is to extract regions of power lines automatically. The second step is to obtain the initial heights of the power lines according to the deduced approximate formula. The third step is to estimate the final height profiles of the power lines. Finally, experimental results have shown that 2-D imaging results of power lines with slightly varying heights are well focused when the height profiles estimated by the proposed three-step method are used.