相关实验视频
Updated: Sep 11, 2025

14:25
Determining 3D Flow Fields via Multi-camera Light Field Imaging
Published on: March 6, 2013
16.7K
概括
这项研究引入了一种使用微电机系统 (MEMS) 投影和光场成像 (LFI) 的新型边缘投影特征测量 (FPP) 系统. 这种创新方法可以在更深的深度范围内实现高精度的3D扫描.
科学领域:
- 光学和光子学 在光学和光子学.
- 计量学和测量 计量学和测量
- 计算机视觉和图像处理
背景情况:
- 传统的基于镜头的边缘投影造型测量 (FPP) 系统在很大的深度范围内难以进行高精度测量.
- 现有的FPP系统的局限性阻碍了需要广泛的深度测量 (DOF) 的应用.
研究的目的:
- 开发一种先进的FPP系统,克服传统方法的深度范围限制.
- 为了提高3D扫描应用中的测量精度和稳定性.
主要方法:
- 微电机系统 (MEMS) 投影与光场成像 (LFI) 的整合.
- 开发一个扩展深度射线融合模型 (EDRFM),使用射线跟踪进行投射成像特征.
- 实现多视图空间对齐的相位一致性和一种新的融合方法,以尽量减少视图变化错误.
主要成果:
- 拟议的FPP系统显示了0.12mm的测量精度.
- 在相当大的650毫米深度范围内成功实现了高精度测量.
- 验证EDRFM和融合方法在减少视图变化导致的错误.
结论:
- 整合MEMS投影和LFI提供了一个可行的解决方案,用于高精度,大深度范围的3D扫描.
- EDRFM和拟议的融合战略有效地解决了FPP系统的挑战.
- 这一进步对工业计量学和复杂表面重建有重大影响.
相关概念视频
Confocal Fluorescence Microscopy
14.3K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
14.3K
Super-resolution Fluorescence Microscopy
7.6K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
7.6K
Three-Dimensional Microscopy in Microbiology
294
Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...
294

