基于空间频率分析的激光全息三维建筑构建模型  

3D building model of laser holography based on spatial frequency analysis

作　　者：李宪广 LI Xianguang(Zhengzhou Business University,Zhengzhou 451200,China)

机构地区：[1]郑州商学院,郑州451200

出　　处：《激光杂志》2023年第8期236-242,共7页Laser Journal

基　　金：河南省2021年一流本科专业建设点动画(No.188);河南省教育厅2020年一流本科MAYA课程(No.80);河南省教育厅2020年度虚拟仿真实验教学项目动画脚本虚拟仿真辅助设计实验(No.148)。

摘　　要：为高效精准构建建筑激光全息三维模型,设计基于空间频率分析的激光全息三维建筑构建模型。运用三维激光扫描仪采集建筑初始三维激光全息数据,并对其进行配准与滤波降噪的预处理。结合人眼视觉空间频率分析方法,压缩处理降噪后的高质量建筑三维激光全息数据,向3D Studio Max内导入压缩后的数据,构建出激光全息三维建筑模型。结果表明,该模型可获得高质量的建筑三维激光全息数据,并达到理想的数据压缩效果。SSIM值均接近1,PSNR值均高于35 dB,平均压缩比达77.083,平均用时11 s。所构建模型的呈现效果清晰逼真,建模性能稳定。In order to efficiently and accurately construct the 3D building laser holographic model,a laser holo-graphic 3D building model based on spatial frequency analysis is designed.The 3D laser scanner is used to collect the initial 3D laser holographic data of the building,and the pre-processing of registration and filtering noise reduction is carried out.Combined with the human visual spatial frequency analysis method,the high-quality building 3D laser holographic data after denoisying is compressed and processed,and the compressed data is imported into 3D Studio MAX to build a laser holographic 3D building model.The results show that the model can obtain high-quality 3D laser holographic data and achieve ideal data compression effect.The SSIM value is close to 1,the PSNR value is higher than 35dB,the average compression ratio is 77.083,and the average time is 11s.The rendering effect of the construc-ted model is clear and realistic,and the modeling performance is stable.

关 键 词：空间频率分析 激光全息 三维建筑模型 数据配准 滤波降噪 压缩处理 

分 类 号：TN919[电子电信—通信与信息系统]