As a routine process of a
project, Axis calls upon its in house survey team to not only provide precise
and accurate survey control for photogrammetric and airborne LiDAR data sets,
but to also provide the true analysis and cross checking of those datasets.
Once a project has been
controlled and adjusted to the ground and appropriate project datum’s,
additional points of interest are identified, typically by project geometry or
guided by project specifications requiring checks in different ground cover
classifications. This last method involves identifying land cover and use
classifications, such as wetlands, deciduous or coniferous wooded areas,
cultivated areas or residential areas and then gathering specific data points
in those areas to assess and verify that the location and elevation data
represented by the airborne dataset is correct. This procedure involves
establishing GNSS control, and then precision stakeout of a point of interest
to verify its three-dimensional location.
Documentation of this process
includes gathering metadata that will show measurement details, control ties,
conventional photographic evidence of the general area, as well as through the
scope of the instrument to prove aiming accuracy. Through the scope photographs
are directly linked to a point of measurement, and include the display of the
instrument crosshairs as they are pointed at the prism or point of measurement.
For more information contact AXIS today www.axisgeospatial.com/contact-us
