期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B5
页码：129-134
出版社：Copernicus Publications
摘要：One usual complaint about building quality is flatness of a floor. If deviations from planar could be discovered before construction is completed, savings counted in time, money or reputation, can be noticeable. However, finding the possible deviations exceeding the tolerances may be time consuming using the traditional methods. We have tested three accurate 3D measurement methods; photogrammetry, laser scanning and tacheometer, for evaluating as-built floor flatness. An experimental work was done and measuring accuracy, time and expenses were compared in order to illustrate, how realistic these methods are for construction companies. All the methods proved to be suitable for the purpose and gave rather similar results for flatness of the test floor. Laser scanner gave the most detailed information of floor flatness. Photogrammetric and tacheometric measurements were the most accurate
关键词：terrestrial laser scanning; close-range photogrammetry; construction quality; tacheometer
