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基于无人机精细航线规划的山区高墩桥梁三维建模研究
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作者 宁朝阳 葛健 +3 位作者 蒲春 龙关 曹朝辉 冯东明 《公路》 北大核心 2024年第5期147-152,共6页
介绍了针对山区高墩桥梁的精细航线规划及快速建模方法和基于点云的桥墩几何参数量化方法。采用无人机环形航线建立桥梁的粗略倾斜摄影模型,基于粗模规划精细化航线并采集高分辨率图像,建立桥梁精细化三维点云模型,并量化桥墩几何参数... 介绍了针对山区高墩桥梁的精细航线规划及快速建模方法和基于点云的桥墩几何参数量化方法。采用无人机环形航线建立桥梁的粗略倾斜摄影模型,基于粗模规划精细化航线并采集高分辨率图像,建立桥梁精细化三维点云模型,并量化桥墩几何参数。通过实际工程应用发现,无人机精细化航线能有效提高桥梁三维点云建模的准确度,且基于精细化桥墩点云模型可量化桥墩几何参数,所得的桥墩半径、高度及体积的量化误差分别在2%、5%和8%以内。 展开更多
关键词 桥梁工程 三维建模 航线规划 点云量化 无人机 建模研究
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历史地段保护性改造中数字化勘查技术应用研究——基于珠江三角洲地区的实践 被引量:4
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作者 杨颋 邹姗 《建筑学报》 北大核心 2016年第12期22-27,共6页
以珠海北山村和广州泮塘五约两处历史地段的保护性改造为例,分析了珠三角地区历史地段在规划设计阶段的主要技术难点,探索了无人机技术、数字照相建模技术、移动三维激光测绘技术、点云矢量化技术等数字化勘察技术在应对这些技术难点的... 以珠海北山村和广州泮塘五约两处历史地段的保护性改造为例,分析了珠三角地区历史地段在规划设计阶段的主要技术难点,探索了无人机技术、数字照相建模技术、移动三维激光测绘技术、点云矢量化技术等数字化勘察技术在应对这些技术难点的过程中所发挥的作用,提出了新的面向建筑学的数字化勘测的工具和方法。 展开更多
关键词 无人机技术 数字照相建模技术 移动三维激光测绘技术 量化技术
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Digital Analysis of the Water Layout Ecological Wisdom in Traditional Chinese Rural Settlements:A Case Study of Liukeng Village in Jiangxi Province 被引量:6
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作者 LI Zhe HUANG Si +1 位作者 WANG Han LI Yan 《Journal of Resources and Ecology》 CSCD 2022年第3期371-381,共11页
During the long-term construction and development process of eliminating water disasters and promoting water conservancy in traditional settlements,a set of mature strategies that have simple ecological wisdom in wate... During the long-term construction and development process of eliminating water disasters and promoting water conservancy in traditional settlements,a set of mature strategies that have simple ecological wisdom in water layout have been formed by adapting to the natural water environment and utilizing the regional water system.This study conducted a qualitative and quantitative analysis of the water layout strategies and their effects on Liukeng Village from three aspects:deciphering the water systematic pattern,calculating the spatial characteristics and quantifying the water environment,to explore the technical assistance and potential of water layout research in traditional rural settlements.The results indicated that Liukeng has an unambiguously systematic water layout pattern of source diversion,middle drainage and end purification of the water.Through 3D point cloud computing,it was shown that the site selection made accurate use of micro-topography and adopted the strategy of a multi-source water management.It formed an organic water system pattern,which provided sufficient water sources for all kinds of needs of Liukeng Village.The Dragon Lake in Liukeng held 83.0%of the precipitation,and the vegetation area accounted for 34.7%of the total area of Liukeng,which had high surface permeability and good middle drainage effects.Water detection showed that the Dragon Lake provided good water quality and purification.The purposes of this study are to fill the gap in previous non-quantitative research on water layout in traditional rural settlements,excavate the hidden information and value of settlements,and deepen our understanding of the ecological wisdom of the overall planning,layout and construction of water conservancy in traditional rural settlements.This knowledge can assist the win-win situation of water conservancy cultural heritage protection and modern utilization.It also provides useful inspiration and reference for properly dealing with the problems of rain and flooding,realizing the sustainability of water resources,and protecting the ecological environment in the process of the development and construction of village settlements in China. 展开更多
关键词 ecological wisdom of water layout water systematic pattern 3D point cloud computing quantification of water environment water conservancy heritage
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