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Updated: Feb 20, 2026

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便携式和可扩展的测量系统用于基于边缘投影摄影计量的大型复杂表面的3D测量

|February 18, 2026

概括

这项研究介绍了一个便携式的3D测量系统,它结合了摄影计量和边缘投影. 它有效地扩大了测量范围,并减少了大规模制造应用的拼接误差.

科学领域:

计量学计量学计量学
光学测量系统光学测量系统
3D扫描技术的使用

背景情况:

复杂表面的3D测量对于大规模制造至关重要.
结合光谱和边缘投影,提供高精度,高密度的点云.
现有的方法在测量范围和拼接错误积累方面存在局限性.

研究的目的:

提出一个便携和可扩展的3D测量系统.
克服现有的大型表面测量技术的局限性.
为了减少拼接错误,并扩大复杂表面的测量范围.

主要方法:

开发了一个使用数字单镜头反射镜头 (DSLR) 摄像机与变焦镜头和投影仪的系统.
在现场校准外部参数,使用循环编码目标 (CCT) 作为本地基准.
采用全球优化模型来确定拼接姿势,将测量范围与相机变焦相匹配,并建立全球基准.

主要成果:

有效地减少了3D测量中的拼接错误.
显著扩大了整体测量范围.
在车身上实现了0.8mm/m的整体测量精度.
通过3D重建和测量验证了该方法的有效性.

结论:

拟议的便携式和可扩展系统增强了大规模的3D表面测量.
创新的校准和优化方法最大限度地减少了错误,并扩展了功能.
该方法为制造业中的高精度3D计量提供了可行的解决方案.

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