集成GIGIS技术与改进LiDAR的建筑测量技术研究

Research on Improving LiDAR Building Survey Technology Supported by GIGIS Technology

摘要:

倾斜摄影测量技术因现代测量技术的进步,在众多应用场景中证明了其独特和不可或缺的价值；在GIGIS技术的支持下,研究致力于结合倾斜摄影测量技术与机载LiDAR技术,旨在实现更精确、完整的建筑测量；采用了基于GIGIS的倾斜影像技术,获取了丰富的纹理、色彩特征信息,并利用机载LiDAR技术获取了高精度、低噪声的点云信息,从而优化了LiDAR在建筑测量中的应用；通过对点云特征提取与融合方法的优化,在两个不同区域的测试中,改进后的特征提取准确率分别达到93.56%和92.14%,均明显高于改进前；研究为建筑测量提供了更准确、完整的多源数据特征,为建筑测量技术的进步提供了有价值的方案。

关键词:测量技术;LiDAR;GIGIS;建筑测量

Abstract:

Inclined photogrammetry has proved its unique and indispensable value in many application scenarios due to the advancement of modern measurement technology; with the support of geographic information and geographic information system (GIGIS) technology, the research is dedicated to combining inclined photogrammetry and airborne light detection and ranging (LiDAR) technology, aiming to achieve more accurate and complete building measurements; GIGIS-based tilted imagery technology is adopted to acquire rich texture and color feature information and airborne LiDAR technology was used to obtain high-precision and low-noise point cloud information, thus optimizing the application of LiDAR in building surveying; through the optimization of point cloud feature extraction and fusion methods, the improved feature extraction accuracy reached 93.56% and 92.14% in two different regions of the test, which are significantly higher than the pre-improvement; the study provides building surveying with more accurate The study provides more accurate and complete features of multi-source data for building measurement, and provides a valuable solution for the progress of building measurement technology.

Key words:Measurement technology; LiDAR; GIGIS; Architectural surveying