液晶与显示2025，Vol.40Issue(12)：1829-1839,11.DOI:10.37188/CJLCD.2025-0176
基于FPGA的二加一相移三维重建系统
FPGA-based two-plus-one phase-shifting 3D reconstruction system
TIAN Ye 1GAO Ze 1YU Xuanxuan 1ZHANG Lijuan 2LIU Yinping 3YAN Fei1
作者信息
- 1. School of Automation,Nanjing University of Information Science and Technology,Nanjing 210044,China
- 2. Intelligence Technology of CEC Co.Ltd.,Beijing 102200,China
- 3. School of Emergency Management,Nanjing University of Information Science and Technology,Nanjing 210044,China
- 折叠
摘要
Abstract
To achieve a high-efficiency and low-power 3D reconstruction system,this paper proposes a hardware-accelerated architecture based on a field-programmable gate array(FPGA)that integrates the two-plus-one phase-shifting method with complementary Gray code.First,fringe patterns are captured through a camera control module,followed by caching and filtering processing.Subsequently,leveraging the parallel computing capability of FPGA,key algorithms including wrapped phase calculation,phase unwrapping,and 3D reconstruction are hardware-accelerated and optimized.Finally,the 3D point cloud data is transmitted to the host computer via a Gigabit Ethernet module for visualization,forming a complete 3D measurement system.Experimental results demonstrate that the proposed architecture processes a set of 11 fringe images with a resolution of 720×540 in only 8 ms,achieving a 3.3×speedup compared to the conventional CPU platform,which requires 27 ms.Meanwhile,the total system power consumption is only 1.687 W,with an absolute phase error of 0.036 8 rad and a root mean square error of 0.097 8 mm.These results indicate that the proposed system meets the requirements of high precision,high efficiency,and low power consumption.关键词
FPGA/三维重建/结构光/互补格雷码Key words
FPGA/3D measurement/structured light/complementary gray code分类
信息技术与安全科学引用本文复制引用
TIAN Ye,GAO Ze,YU Xuanxuan,ZHANG Lijuan,LIU Yinping,YAN Fei..基于FPGA的二加一相移三维重建系统[J].液晶与显示,2025,40(12):1829-1839,11.
