Three-dimensional Measurement Method Integrating Imaging and Fringe Projection for Space Teleoperation
To address the issues of low accuracy,insufficient completeness,and the inability to bal-ance cost and precision in 3D measurements using a single visual sensor in space teleoperation tasks,a 3D measurement method combining fringe projection and RGB-D camera was proposed in this study.This method integrated phase data with depth data and employed a quality-guided un-wrapping algorithm based on second-order phase-depth differences to extract absolute phase.Final-ly,polynomial fitting was used to fuse the phase difference and depth data.Experimental results showed that in both spherical and stepped standard part measurements,this fusion method could sig-nificantly improve the completeness and accuracy of the measurement data,and the accuracy was in-creased by 3%as compared to single RGB-D measurement.Additionally,the experiments confirmed that cubic polynomial fitting could provide the optimal measurement data fusion results.
万方数据
维普
