概括
这项研究引入了一种双摄像头系统,用于精确监测大型结构的移位,克服环境振动. 该方法精确地测量了六度自由度中的小振动,提高了现实应用中的可靠性.
科学领域:
- 工程 工程师 工程师 工程师
- 地质物理学 地质物理学
- 计算机视觉 计算机视觉
背景情况:
- 视觉测量技术为大型结构位移监测提供了高精度.
- 复杂环境中的平台振动会导致严重的测量误差.
- 现有的方法在动态条件下难以获得准确性和效率.
研究的目的:
- 开发一个强大的移位测量方法,用于大型结构.
- 通过减轻平台振动效应来提高准确性和可靠性.
- 为了提高视觉测量技术的效率.
主要方法:
- 开发了一种通用的双摄相机相对运动估计方法.
- 对于双摄像头系统,我们得出了线性分析解决方案.
- 双摄像头系统使用固定的连接角度来改善估计.
主要成果:
- 该方法在六度自由度中实现了小振动的高精度测量.
- 它有效地弥补了平台运动引起的测量点变化.
- 模拟显示了比单眼PNP算法更高的性能.
- 户外实验与总站测量相比,平均误差小于1毫米.
结论:
- 拟议的双摄像头方法为移位监控提供了一个实用和可靠的解决方案.
- 它提高了准确性和效率,优于现有的视觉测量技术.
- 该技术适用于需要精确结构监控的现实应用.
相关概念视频
01:30Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
16
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
16
01:15Distance Corrections
24
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
24