空间变分辨率扫描三维重构成像研究  

Spatial Variable Resolution Scanning Three-Dimensional Reconstruction Imaging

作　　者：郝群[1,2,3] 韩斌 杨骜 梁龙 陈泓霖 曹杰 Hao Qun;Han Bin;Yang Ao;Liang Long;Chen Honglin;Cao Jie(School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China;Yangtze Delta Region Academy of Beijing Institute of Technology,Jiaxing,Jiaxing 314003,Zhejiang,China;Changchun University of Science and Technology,Changchun 130022,Jilin,China;Beijing Huahang Radio Measurement Institute,Beijing 100013,China;School of Mechanical Engineering,Shandong University of Technology,Zibo 255000,Shandong,China)

机构地区：[1]北京理工大学光电学院,北京100081 [2]北京理工大学长三角研究院(嘉兴),浙江嘉兴314003 [3]长春理工大学,吉林长春130022 [4]北京华航无线电测量研究所,北京100013 [5]山东理工大学机械工程学院,山东淄博255000

出　　处：《激光与光电子学进展》2023年第11期235-241,共7页Laser & Optoelectronics Progress

基　　金：北京市自然科学基金(4232014)。

摘　　要：针对传统固定分辨率扫描式三维成像存在点云冗余度高、图像重构精度低的问题,提出了一种空间变分辨率扫描式三维重构成像方法,构建了多回波与变分辨率扫描成像模型,通过对多回波分解并提取目标信息,实现了针对目标的高分辨深度图像重构。通过对比实验验证了模型的有效性,结果表明,与传统定分辨率扫描成像相比,该方法在保证目标重构精度的同时,采样比仅为传统方法的50%,有效降低了点云采样冗余度。所获结果有利于支撑三维成像相关应用领域。A spatial variable resolution scanning three-dimensional(3D)imaging method is proposed to address the problems of high redundancy of point cloud and low accuracy of image reconstruction in traditional fixed-resolution scanning 3D imaging.A model of multi-echo and spatial variable resolution scanning imaging is deduced.Target information is extracted by decomposing multi-echo to achieve high resolution depth image reconstruction.The model is verified by comparative experiments.The results show that compared with the traditional fixed-resolution scanning imaging method,the sampling rate of the proposed method is only 50%under the comparable imaging quality,which effectively reduces the redundancy of the point cloud.The results can support the related application of 3D imaging.

关 键 词：三维成像 变分辨率 多回波 目标重构 

分 类 号：TN958.98[电子电信—信号与信息处理]