applications of laser scanning for civil engineering
laser scanning technology have challenged the conventional measurements
in urban and rural environments. The laser scanning is capable to
provide 3-dimensional information of the surrounding environment for
topographic surveys with an accuracy equivalent to traditional land
surveys. Laser scanning has entered into civil engineering where it has
been developed as the response to the need of a wide range of users for
up-to-date digital elevation models.
objectives of the research project are
To verify the quality and accuracy of laser scanning
To investigate the quality and accuracy of laser scanning in
data was recorded with the Finnish Geodetic Institute in the test site
in Otaniemi. In order to verify the accuracy of laser points in
Otaniemi, coordinates of reference points were measured using RTK
(Real-Time-Kinematic) GPS receiver. RTK will be mainly applied for
accurate reference data collection, because of the accuracy, which is
centimeter level. Horiziontal accuracy of the RTK was verified to be
about 0.015 m and vertical accuracy 0.02 m.
acquisitions – Laser scanning campaigns with TopEye and Toposys.
The project is
funded by the Academy of Finland. Other research partners of the
project are Finnish Geodetic Institute/Department of Photogrammetry and
Remote Sensing and Finnish Consulting Engineers Ltd, Sito.