基准尺对数字工业摄影测量精度影响的实验分析  

Experiment Analysis of Influence of Scale-bar on the Accuracy of Digital Industrial Photogrammetry

作　　者：王俊威 冯其强[1] 王志坚[1] Wang Junwei;Feng Qiqiang;Wang Zhijian(Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]信息工程大学,河南郑州450001

出　　处：《测绘科学与工程》2018年第5期21-25,共5页Geomatics Science and Engineering

摘　　要：数字工业摄影测量中,基准尺的精度直接影响测量结果的准确性本文以组合基准尺为例,分析了基准尺长度对摄影测量精度的影响,并通过公共点转换实验,比较了放置不同长度基准尺时摄影测量的精度.实验结果表明,当测量目标较大时,放置较长基准尺的测量精度高于放置较短基准尺的测量精度。本文为在实际工程应用中,数字工业摄影测量如何选择合适的基准尺提供了参考依据。In digital industrial photogrammetry, the accuracy of scale-bar directly affects the accuracy of the measurement results. Taking the combined scale - bar as an example, the influence of the length of the scale - bar on the accuracy of photogrammetry is analyzed, and the accuracy of photogrammetry when different scale-bar is deployed is compared through the common point transfonnation experiment. The experimental results show that when a larger target is measured, the precision of the photogrammetry obtained by placing a longer scale -bar is higher than that of a shorter scale-bar. This paper provides a reference for the selection of a suitable scale-bar in the practical engineering application of digital industrial photogrammetry.

关 键 词：数字工业摄影测量 基准尺 公共点转换 测量精度 

分 类 号：P258[天文地球—测绘科学与技术]