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.
作者
郝群
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)
出处
《激光与光电子学进展》
CSCD
北大核心
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)。
关键词
三维成像
变分辨率
多回波
目标重构
three-dimensional imaging
variable resolution
multiple echoes
target reconstruction
