基于相移轮廓术的多核异构三维测量系统  

Multi-Core Heterogeneous Three-Dimensional Measurement System Based on Phase-Shift Profilometry

作　　者：方智慧 陈彬[1,2] 伍世虔 Fang Zhihui;Chen Bin;Wu Shiqian(School of Information Science and Engineering,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Institute of Robotics and Intelligent Systems,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China)

机构地区：[1]武汉科技大学信息科学与工程学院,湖北武汉430081 [2]武汉科技大学机器人与智能系统研究院,湖北武汉430081

出　　处：《激光与光电子学进展》2023年第14期228-237,共10页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61775172)。

摘　　要：在充分兼顾嵌入式三维测量系统对高效性、集成性、通用性以及灵活性等需求的基础上,设计了一种由3个异构核心构成的结构光三维测量系统架构。该多核异构架构层次清晰、结构灵活、通用性强,能兼容多种通用接口的光学器件(相机、投影仪等)。在此架构基础上,结合现场可编程门阵列并行流水优化方法,设计并实现了一种涵盖相位解调、解包裹以及相位深度映射等模块的全流程结构光三维测量系统。实验结果表明,所提方法在测量精度与传统PC平台相当的情况下,大大提高了测量效率,处理13幅1280×800分辨率的图像仅需12 ms,是同类算法在传统PC平台上的11倍。A structured light 3D measurement system architecture consisting of three heterogeneous cores is proposed based on phase-shift profilometry to achieve an embedded 3D measurement system for efficiency,integration,versatility,and flexibility.The multi-core heterogeneous architecture has a clear hierarchy,flexible structure,and strong universality and can work with optical devices(cameras,projectors,etc.)possessing a variety of universal interfaces.A full processstructured light 3D measurement system covering phase demodulation,unwrapping,and phase depth mapping modules is designed and constructed based on this architecture along with the parallel pipelining optimization approach of the fieldprogrammable gate array.The experimental findings demonstrate that the proposed approach significantly enhances the measurement efficiency,it only takes 12 ms to process 13 images of 1280×800 resolution when the measurement accuracy is equivalent,which is 11 times that of similar algorithms on standard PC platforms.

关 键 词：测量 多核异构 结构光 相移轮廓术 互补格雷码 

分 类 号：O439[机械工程—光学工程]