面向高功率激光装置精密装校实验室的三维重建技术及应用

发布时间：2018-01-20 22:22

本文关键词： 高功率激光装置精密装校实验室多视角序列图像尺寸不变换特征转换泊松碟采样　出处：《计算机辅助设计与图形学学报》2017年05期 　论文类型：期刊论文

【摘要】：针对高功率激光装置对成千上万光机组件的精密装校工艺数字化仿真验证的工程需求及精密装校实验室(OAB)的特殊环境,基于多视角序列图像三维重建技术,提出实现OAB三维重建的总体技术.首先结合实验室重建对象的特点,分析了满足于OAB三维重建的多视角序列图像采集、特征提取、特征匹配、自适应均匀点云采样等相关方法;然后以激光跟踪仪为重建对象,详细介绍了三维重建流程;最后依次完成实验室其他特征模型的三维重建,并将提出的OAB三维重建的总体技术应用于整个OAB重建,实现了精密装校环境的三维重建.OAB重建结果表明,该技术可获得较高逼真度的精密装校实验室数字化模型,满足光机精密装校工艺数字化仿真验证的需求.
[Abstract]:According to the engineering requirement of high power laser device on the precision alignment of tens of thousands of optical mechanical assembly process digital simulation and precision calibration laboratory (OAB) of the special environment, 3D reconstruction of multi view image sequence based on OAB technology, put forward to realize the overall three-dimensional reconstruction. Firstly, combining the characteristics of laboratory reconstruction object, analyzed the sequence of image acquisition. To meet the OAB 3D reconstruction of multi view feature extraction, feature matching, adaptive uniform point cloud sampling method; then the laser tracker for the reconstruction of the object, introduces the 3D reconstruction process; finally, in order to complete the three-dimensional reconstruction model and other laboratory features, the proposed OAB 3D reconstruction technique is applied to the overall reconstruction of OAB.OAB, a 3-D reconstruction result precision alignment environment show that this technique can achieve precise alignment of the laboratory with high fidelity The digital model meets the needs of the digital simulation verification of the precision installation process of the optical machine.

【作者单位】：中国工程物理研究院激光聚变研究中心;
【基金】：国家自然科学基金(51575310) 北京市自然科学基金(3162014)
【分类号】：TP391.41;TN249
【正文快照】： 激光器问世之初科学家们便萌发了利用强光产生核聚变的念头.从20世纪70年代开始,在世界范围内,美、日、法、中、英、俄等国都围绕着激光聚变能源的需求先后建成了20余台大型激光装置[1].以美国国家点火装置[2-3]为代表的第二代高功率固体激光装置具有规模巨大、功率密度高等特

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