The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLI-B5
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B5, 607–614, 2016
https://doi.org/10.5194/isprs-archives-XLI-B5-607-2016
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B5, 607–614, 2016
https://doi.org/10.5194/isprs-archives-XLI-B5-607-2016

  15 Jun 2016

15 Jun 2016

MODEL BASED VIEWPOINT PLANNING FOR TERRESTRIAL LASER SCANNING FROM AN ECONOMIC PERSPECTIVE

D. Wujanz and F. Neitzel D. Wujanz and F. Neitzel
  • Institute of Geodesy and Geoinformation Science Technische Universität Berlin, 10623 Berlin, Germany

Keywords: Terrestrial laser scanning, viewpoint planning, registration, ray casting, economic considerations

Abstract. Despite the enormous popularity of terrestrial laser scanners in the field of Geodesy, economic aspects in the context of data acquisition are mostly considered intuitively. In contrast to established acquisition techniques, such as tacheometry and photogrammetry, optimisation of the acquisition configuration cannot be conducted based on assumed object coordinates, as these would change in dependence to the chosen viewpoint. Instead, a combinatorial viewpoint planning algorithm is proposed that uses a given 3D-model as an input and simulates laser scans based on predefined viewpoints. The method determines a suitably small subset of viewpoints from which the sampled object surface is preferably large. An extension of the basic algorithm is proposed that only considers subsets of viewpoints that can be registered to a common dataset. After exemplification of the method, the expected acquisition time in the field is estimated based on computed viewpoint plans.