结合图像块和DBSCAN处理,用于大视野结构光点云,消除噪音
Keming Zhang1, Diwei Yu1, Shikai Ming1
1School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China.
Scientific reports
|November 25, 2025
概括
这项研究引入了一种新的方法,可以从大型视野系统中清除杂的3D点云数据. 联合预处理技术有效地消除了异常值,提高了工业检查和虚拟现实应用的3D重建质量.
科学领域:
- 计算机视觉 计算机视觉
- 三维重建的3D重建
- 图像处理 图像处理
背景情况:
- 条纹投射结构光系统对于工业检查和虚拟现实中的3D重建至关重要.
- 越来越多的对大视野重建的需求扩大了环境噪音,降低了点云质量.
- 现有的降噪方法可能无法在复杂的3D数据中充分保留细节.
研究的目的:
- 为3D点云数据开发一个强大的组合预处理方法.
- 在大型视野3D重建中有效减少噪音和异常值.
- 为了提高重建3D形态的准确性和完整性.
主要方法:
- 使用相场和双眼相匹配数据的综合预处理方法.
- 在相场数据中检测异常值的图像块统计分析.
- DBSCAN在双筒相匹配点上进行聚类,以拒绝异常值.
- 与相机校准集成,用于最终的3D形状重建.
主要成果:
- 与高斯式,双边和统计过相比,拟议的方法证明了优越的噪点去除.
- 它有效地保留了目标点云数据,保留了复杂的细节.
- 对于大视野的3D点云重建的质量得到了显著改善.
结论:
- 组合预处理方法为3D点云数据的噪声降低提供了更有效的解决方案.
- 这种技术提高了3D形态重建的可靠性,特别是在大规模应用中.
- 该方法为提高结构光系统可靠性提供了有价值的工具.
相关概念视频
Confocal Fluorescence Microscopy
19.9K
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,...
19.9K
Super-resolution Fluorescence Microscopy
12.1K
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...
12.1K
Electron Microscope Tomography and Single-particle Reconstruction
2.8K
Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
2.8K


