The use of video-tacheometric technology for documenting and analysing geometric features of objects

Marek Woźniak, Ewa Świerczyńska, Sławomir Jastrzębski

Abstract


This paper analyzes selected aspects of the use of video-tacheometric technology for inventorying and documenting geometric features of objects. Data was collected with the use of the video- tacheometer Topcon Image Station IS-3 and the professional camera Canon EOS 5D Mark II. During the field work and the development of data the following experiments have been performed: multiple determination of the camera interior orientation parameters and distortion parameters of five lenses with different focal lengths, reflectorless measurements of profiles for the elevation and inventory of decorative surface wall of the building of Warsaw Ballet School. During the research the process of acquiring and integrating video-tacheometric data was analysed as well as the process of combining "point cloud" acquired by using video-tacheometer in the scanning process with independent photographs taken by a digital camera. On the basis of tests performed, utility of the use of video-tacheometric technology in geodetic surveys of geometrical features of buildings has been established.


Keywords


video-tacheometric technology; reflectorless technology; lens distortion; photogrammetry; scanning

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References


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DOI: http://dx.doi.org/10.2478/rgg-2015-0010

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