条纹管激光成像雷达目标三维重构快速算法  

Fast Target Three-Dimensional Reconstruction Algorithm for Streak Tube Laser Imaging Radar

作　　者：刘爱林 张敬金 李思宁[3] 孙剑峰[3] 牛丽红[2] 郭宝平[2] Liu Ailin;Zhang Jingjin;Li Sining;Sun Jianfeng;Niu Lihong;Guo Baoping(College of Electronic and Information Engineering,Shenzhen University,Shenzhen,Guangdong518060,China;College of Physical and Optoelectronic Engineering,Key Laboratory of Optoelectronic Devices and Systems of Ministry Education,Shenzhen University,Shenzhen,Guangdong518060,China;National Key Laboratory of Science and Technology on Tunable Laser,Institute of Opto-Electronic,Harbin Institute of Technology,Harbin,Heilongjiang150080,China;School of Electronic and Information Engineering,Hunan University of Science and Engineering,Yongzhou,Hunan 425100,China)

机构地区：[1]深圳大学电子与信息工程学院,广东深圳518006 [2]深圳大学物理与光电工程学院光电子器件与系统教育部重点实验室,广东深圳518006 [3]哈尔滨工业大学光电子技术研究所可调谐激光技术国家级重点实验室,黑龙江哈尔滨150080 [4]湖南科技学院电子与信息工程学院,湖南永州425100

出　　处：《中国激光》2020年第1期281-288,共8页Chinese Journal of Lasers

基　　金：国家自然科学基金(11805137);深圳市科学研究基金(JCYJ20170818141616714,JCYJ20170818102618203);湖南省应用特色学科建设项目。

摘　　要：实现目标实时动态追踪与识别是条纹管激光成像雷达中亟待解决的问题,针对条纹管激光成像雷达峰值探测三维重构算法运算时间长的问题,提出一种抽样插值目标三维重构算法,以一定的抽样率对条纹图像等间隔抽样并插值运算,再进行峰值特征提取运算。当抽样率为4%时,对于探测距离为706 m的目标,抽样双线性插值重构法的运算速度比原重构法提高了2.3倍,三维重构矩阵的相关系数约为0.99;抽样最近邻插值重构法的运算速度比原重构法提高了3.5倍,三维重构矩阵的相关系数约为0.98。实验结果表明所提算法可以提高目标三维重构速度,并且目标条纹图像帧幅数越多,目标三维重构速度改善效果越好。Real-time dynamic target tracking and recognition has become an urgent issue that should be resolved with respect to streak tube laser imaging radar.In this study,we propose a sampling interpolation algorithm for target three-dimensional(3D)reconstruction to solve the problem of long operation time associated with the peak detection 3D reconstruction algorithm.First,the streak image is sampled with a certain sampling rate at equal intervals and is interpolated;subsequently,the peak feature is extracted.When the sampling rate is 4%,the sampling bilinear interpolation reconstruction method is approximately 2.3 times faster than the original reconstruction method,and the correlation coefficient of the 3D reconstruction matrix is about 0.99 for targets with a detection distance of 706 m;further,in case of the nearest neighbor sampling interpolation method,the reconstruction speed is 3.5 times faster than that of the original reconstruction method,and the correlation coefficient of the 3D reconstruction matrix is about 0.98.The experimental results denote that the proposed algorithm can improve the 3D object reconstruction speed;the larger the number of frames of the target streak image is,the better the effect of improving the 3D target reconstruction speed will be.

关 键 词：遥感 光电子学与激光技术 条纹管激光雷达 超快光学 目标三维重构 

分 类 号：TP752.2[自动化与计算机技术—检测技术与自动化装置]