基于相移轮廓术的双采样双步运动物体三维重构
Three dimensional reconstruction ofdouble sampling and two-step moving objects based on phase-shifting profilometry
梁义涛 1代家贝 1吕磊1
作者信息
- 1. 河南工业大学信息科学与工程学院,郑州 450001
- 折叠
摘要
近年来,基于相移轮廓术的测量方法不断被用于实时的运动物体三维重建.物体运动导致在多幅相移条纹中位置不同,同时产生了未知的相移量,导致传统相移轮廓术无法高精度测量运动物体.针对运动物体,提出了一种基于双采样的双步高帧率三维重构方法.在一个条纹投影周期下采样两次运动物体条纹图像,通过分析物体运动在相同投射条纹下以及不同投射条纹间对相位的影响,建立不同情况下的条纹描述方程,最终在环境光已知的前提下基于两幅条纹图实现运动物体三维重构.实验结果表明,本方法不仅实现了运动物体三维重构,重构帧率也显著提高.
Abstract
In the last few years,phase shifting profilometry has gradually applied High speed real-time three-di-mensional measurement for dynamic scenes.The motion of an object in multiple phase shifted fringes not only causes position mismatch,but also introduces additional phase shift,making traditional Phase Shifting Profilometry unable to accurately measure moving objects.This article centering on moving objects,proposes a two-step high frame rate 3D reconstruction method utilizing dual sampling.Sampling two moving object stripe images within one stripe projection cycle,analyzing the impact of object motion on phase under the same projected stripes and between different projected stripes,establishing stripe description equations for different situations,and finally achieving three-dimensional recon-struction of moving objects based on two stripe images with known ambient light.The experimental results show that this method not only achieves three-dimensional measurement of moving objects,but also effectively improves the re-construction frame rate.
关键词
条纹投影/相移轮廓术/三维重建/动态测量Key words
fringe projection/phase shifting profilometry/three-dimensional reconstruction/dynamic measure-ment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据