使用边缘检测和基于超声波的拓学对遗产建筑的3D点云进行细分
Santiago Salamanca1, Pilar Merchán1, Alejandro Espacio1
1Departamento de Ingeniería Eléctrica, Electrónica y Automática, Escuela de Ingenierías Industriales, Universidad de Extremadura, Avda. Elvas s/n, 06006 Badajoz, Spain.
Sensors (Basel, Switzerland)
|July 13, 2024
概括
这种新的无监督细分算法有效地细分了遗产建筑的杂3D点云. 它的性能优于现有的方法,可以准确识别建筑元素进行进一步分析.
科学领域:
- 计算机视觉 计算机视觉
- 数字遗产是数字遗产的一部分.
- 几何处理 几何处理
背景情况:
- 来自遗产建筑的3D点云往往表现出高变化和噪音.
- 准确的细分对于分析和保存数字遗产资产至关重要.
- 现有的细分方法可能会与杂和可变3D数据的复杂性作斗争.
研究的目的:
- 为3D点云引入一种新的,无监督的细分算法.
- 专门应对在遗产应用中常见的噪音数据和高可变性所带来的挑战.
- 为了促进对细分的3D建筑数据的后续分类和识别任务.
主要方法:
- 该算法采用边缘检测技术与基于图形的拓结构相结合.
- 3D点云的超声化生成了段定义的图形结构.
- 无监督方法不需要预先标记的数据,提高在遗产环境中的适用性.
主要成果:
- 该算法成功地将3D数据分割成不同的建筑元素.
- 与其他三种细分方法相比,在真实世界遗产建筑数据上表现出卓越的性能.
- 在历史结构中实现了平面和曲面表面的有效细分.
结论:
- 拟议的无监督细分算法是3D点云处理的宝贵工具,特别是在遗产应用中.
- 它能够适应不同的边缘检测和超声声化技术,从而实现灵活的实现.
- 该方法提供了准确的细分结果,支持进一步分析和对建筑元素的分类.
相关概念视频
Design Example: Measuring Distance Between Two Points with Obstructions
When measuring distances in areas with physical obstructions, such as a lake in a field, surveyors must employ techniques to calculate accurate lengths without direct line measurements. One effective method is the offset technique, which allows for precise distance estimation over inaccessible stretches.In this scenario, a surveyor must measure a side of an area that crosses a lake. Since the measuring tape cannot span the lake, the surveyor begins by establishing a baseline that aligns with...
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
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 served as...


