概括
本研究引入了一种新的像素独立 (P-I) 阶段高度模型,以增强投影和3D形状测量. 与传统的像素依赖 (P-D) 方法相比,新模型显著扩大了测量范围和精度.
科学领域:
- 光学计量学 在光学计量学
- 3D成像是3D成像中的一种.
- 表面形测量仪表面形测量仪
背景情况:
- 投影moiré提供高分辨率的3D形状测量,但受到其相位高度模型的限制.
- 现有的模型限制了测量范围和准确性,原因是扭曲不一致.
研究的目的:
- 开发一个像素独立的 (P-I) 阶段高度模型用于投影moiré.
- 扩大测量范围,提高3D形状测量的准确性.
主要方法:
- 根据moiré阶段增量推导出了P-I模型,解决了边缘和格子扭曲.
- 模拟接收系统作为一个两阶段的反向投影过程,以考虑到系统的扭曲.
- 验证了模型在整个参考平面上表示相位高度关系的能力.
主要成果:
- P-I 模型成功地扩大了投影模拟器的测量范围.
- 在四倍于校准范围的测量范围内实现了高精度.
- 与传统的像素依赖 (P-D) 模型相比,测量范围和精度翻了一番.
结论:
- 拟议的 P-I 阶段高度模型克服了传统模型在投影摩尔的局限性.
- 这一进步使得3D表面的测量范围更广,更准确.
- 在高精度的3D配置测量应用中,P-I模型提供了显著的改进.
相关概念视频
01:26Phase Contrast and Differential Interference Contrast Microscopy
9.5K
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
9.5K
01:15Chromatographic Resolution
742
In chromatography, a solute moves through a chromatographic column and tends to spread, forming a Gaussian-shaped band. The longer the solute spends in the column, the broader the band becomes. The broadening can lead to overlaps within the column, affecting separation effectiveness.
The effectiveness of separation can be evaluated by determining the level of separation between two neighboring peaks in a chromatogram, which represents the individual components of a sample.
In chromatography,...
The effectiveness of separation can be evaluated by determining the level of separation between two neighboring peaks in a chromatogram, which represents the individual components of a sample.
In chromatography,...
742