摘要
随着电力建设飞速发展,电力建设所用的大比例尺地形图量越来越大,搜集图纸不能满足工程需要,必须重新测图,而有时候利用传统的全数字化测图在工期上又难以得到保证。本文结合某500kV变电站工程实际,探讨大比例尺数码影像航测成图过程中的误差影响,研究大比例尺数码影像航测成图的精度和质量控制,并对实践经验作出总结,为类似工程提供了有价值的参考。
As a result of the rapid development electric power construction, requirement of large scale topographic map is growing much faster than before. The existing maps can not meet the demands of project, new surveys have to be carried out and new maps to be made. But the traditional all-digital survey costs too much time, it can＇t be finished on schedule. In this paper, digital image, which is produced by aerial photogrammetry, is used for large scale topographic survey in a project of 500kV substation construction. The error source, precision and quantity control of aerial photogrammetry used in large scale topographic survey ware investigated. At last some valuable conclusions have been made; it can be referred by similar project.
出处
《电力勘测设计》
2009年第2期25-28,共4页
Electric Power Survey & Design
关键词
数码影像
数字摄影测量
大比例尺航测成图
精度
质量控制
digital image
digital photogrammetry
large scale aerial photogrammetry
precision
quality control.
