激光与光电子学进展, 2016, 53 (5): 050701, 网络出版: 2016-05-05  

基于改进联合变换相关算法的航空序列影像位移测量

Aerial Image Displacement Measurement Based on Improved Joint Transform Correlation Algorithm
作者单位
渤海大学信息科学与技术学院, 辽宁 锦州 121013
摘要
为提高精度测量航空序列影像间的位移,提出了一种改进的联合变换相关算法。采用模糊边缘检测方法替换传统边缘检测方法提取航空影像的边缘信息,弥补了传统边缘检测无法有效检测航空影像的边缘特征的不足。应用高提升滤波处理技术对联合功率谱作增强处理,获取了尖锐的互相关峰,得到了更精准的互相关峰位置坐标。利用Matlab软件平台进行仿真实验,结果表明,改进的算法测量的航空序列影像间的位移误差控制在0.1 pixel以内,并且具有显著的抗噪能力。
Abstract
A modified joint transform correlation algorithm is proposed for improving the measurement precision of the displacement between aerial images. The fuzzy edge detection method is used to replace the traditional edge detection method to extract the edge information of aerial images, and the deficiency that traditional edge detection method cannot effectively detect the aerial image edge characteristics is made up. The high-boost filtering technology is used to enhance the processing of the joint power spectrum, and the sharp correlation peak and more accurate coordinates of correlation peak position are obtained. The simulation results show that the displacement error of the improved algorithm is as low as 0.1 pixel using Matlab software platform, and the improved algorithm has obvious anti-noise ability.

刘畅, 崔红霞, 刘佳琪, 王鸿雁. 基于改进联合变换相关算法的航空序列影像位移测量[J]. 激光与光电子学进展, 2016, 53(5): 050701. Liu Chang, Cui Hongxia, Liu Jiaqi, Wang Hongyan. Aerial Image Displacement Measurement Based on Improved Joint Transform Correlation Algorithm[J]. Laser & Optoelectronics Progress, 2016, 53(5): 050701.

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