摘要
针对高精度激光三维扫描在复杂工业场景中的应用需求,本文提出偏振-线激光融合重建在一维移动扫描系统和转台旋转扫描系统中解决了高反射表面(如工业零件、抛光金属、釉面陶瓷)导致的激光散射和重建失真。在激光器传感器和CMOS工业相机端前加入旋转偏振片捕捉多角度偏振信息。通过偏正特性区分镜面反射与漫反射,修正三维坐标。采用自适应曝光控制模块降低过曝区域影响,融合多模态图像数据提升特征提取精度,引入反射抑制算法优化点云重建。实验表明,该方法在金属工件、镜面陶瓷等典型高反光物体上的重建误差亚毫米级。
To address the challenges of laser scattering and reconstruction distortion caused by highly reflective surfaces(e.g.,industrial components,polished metals,glazed ceramics)in high precision laser 3D scanning for complex industrial scenarios,a polarized line laser fusion reconstruction method implemented in both one dimensional mobile scanning systems and turntable based rotational scanning systems is proposed in this paper.A rotating polarizer is integrated preceding the laser sensor and CMOS industrial camera to capture multi angle polarization information.By leveraging polarization characteristics,specular reflection and diffuse reflection are distinguished,enabling correction of 3D coordinates.An adaptive exposure control module is employed to mitigate overexposure effects,while multi modal image data fusion enhances feature extraction accuracy.A reflection suppression algorithm is further introduced to optimize point cloud reconstruction.Experimental results demonstrate that this method achieves sub millimeter reconstruction errors on typical highly reflective objects such as metal workpieces and mirror like ceramics.
作者
杨成禹
何琦
艾广燚
韩冬
YANG Cheng-yu;HE Qi;AI Guang-yi;HAN Dong(Changchun University of Science and Technology,Faculty of Optoelectronic Engineering,Changchun 130012,China;Zhongshan Institute of Changchun University of Science and Technology,Zhongshan 528437,China;School of Mechanical and Electrical Engineering,Faculty of Mechanical and Electrical Engineering,Changchun 130012,China)
出处
《激光与红外》
北大核心
2026年第1期31-37,共7页
Laser & Infrared
基金
吉林省科技发展计划项目(No.YDZJ202501ZYTS827)
中山市创新团队项目(No.CXTD2023006)资助。
关键词
线激光
三维重建
激光投影
line lasers
3D reconstruction
laser projection
