针对微型全息投影仪的相位误差，提出基于光路的校正方法。
Ray-based phase error correction for miniaturized DOE projector-based FPP under single-directional hyperbolic projection
- 从投影光路建模相位误差，不依赖图像处理和邻近像素。
- 仅用一个标定姿态即完成校准，数据效率高。
- 无需双目校准，适合小型化系统，精度显著提升。
使用微型全息投影仪（DOE）的条纹投影轮廓术（FPP）系统常因投影非线性及图案控制能力弱而产生严重相位伪影。本文提出一种基于光路的相位误差校正框架，沿投影仪针孔发出的光线建模相位误差，无需依赖图像域处理或邻近像素。提出一种基于单向双曲条纹图案的针孔估计方法，可在无需立体校准的情况下恢复投影仪几何参数。此外，设计了一种数据高效策略，仅需单一标定姿态即可构建优化模型。在微型全息投影仪基FPP系统上的实验表明，在非线性投影条件下，重建精度显著提升，验证了该方法的鲁棒性与物理一致性。
原文摘要 · Abstract (English)
Fringe Projection Profilometry (FPP) systems using miniaturized DOE pro-jectors often suffer from severe phase artifacts due to nonlinear projection characteristics and limited pattern controllability. We propose a ray-based phase error correction framework that models phase artifacts along projection rays from the projector pinhole, incorporating projector geometry without re-lying on image-domain processing or neighboring pixels. A projector pinhole estimation method based on a single-directional hyperbolic fringe pattern is introduced, through which projector geometry can be recovered without stereo calibration. In addition, a data-efficient strategy constructs the re-finement model from a single calibration pose. Experiments on miniaturized DOE projector-based FPP systems demonstrate significant improvements in reconstruction accuracy under nonlinear projection conditions, confirming the robustness and physical consistency of the proposed approach.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品；中文卡片由大模型生成，请以原文为准。