Introduction In many cases there are not many LIDAR returns from the surface of waterbodies, and sometimes none at all. In some situations, it is useful to have points that can represent the surface of these waterbodies. LP360 can be used to generate points for these areas and mark them as synthetic points. Methodology Generate…
The Terrasolid allows for the customization of the list of applications in Terra License Manager. This allows the user to hide unnecessary applications (Applications that the user does not have) from the list to streamline the license checkout process for client machines. Simply select the the unnecessary application(s) in the list and select the ‘Hide…
GeoCue Group recently partnered with the National Park Service (NPS) in a pilot project to assess culturally significant areas within Gettysburg National Military Park using small unmanned aerial systems (sUAS). The area of interest (AOI) for this project was the western face of Little Round Top. Little Round Top was the location of a defensive…
A Letter from Jolynn Schmidt My final project for my LIDAR class was to extract building heights using LIDAR collected after Superstorm Sandy for the City of Newark. Using LP360, I created a Point Cloud Task workflow to classify points within a set of building footprints. My final product included a DEM of the ground…
Photoscan has a function to assign only user selected images for a specific area. This is useful for cleaning up areas of the ortho that have: blurriness, moving vehicles, bad image stitching, etc. 1. To begin, make sure that you have selected to view the orthomosaic, draw a polygon around the area in the orthomosaic…
When importing adjusted photo heights into PhotoScan, the photo name is used to attach the adjusted image height to the photo in the PhotoScan project. The photo numbering system used by DJI aircraft starts at DJI_ 0001 and goes up to DJI_0999. When the number of photos exceeds DJI_0999, the photo count starts back over…
To process images in PhotoScan using control points, it is important for the image heights to be relative to the same vertical datum as the control points. Some drone models cannot determine their height relative to a vertical datum but can accurately determine their height above the takeoff location. If the takeoff elevation is known,…
One of the steps in AirGon’s PhotoScan processing workflow is to build a 3D mesh. The mesh building step usually consumes more memory than other steps in the workflow and can lead to a memory error if the capacity is exceeded. The source of this problem can sometimes be traced back to the selection of…
