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LIDAR Quality Levels – Part 1
The LIDAR community has been gradually adopting the terminology “Quality Level” to categorize airborne LIDAR data. The idea is to use a simple scheme to characterize the more important features of a LIDAR data set into a few broad groups designated QLn where n is the quality level. LIDAR Quality Levels – Part 1
LP360 Tutorials: Getting Started Guide
LP360 Tutorials The LP360 tutorials are designed for new users of LP360. They provide the basics for getting you started with displaying and working with LIDAR data. These tutorials are designed for you to view alongside LP360, while performing all the same tasks that you see displayed. Data Needed for the Tutorials You will need…
Spatial Density Distribution
Quality control and quality assurance checks for LIDAR data continue to evolve as the industry identifies new ways to help ensure that data collections meet desired usage requirements. The U.S. Geological Survey (USGS) LIDAR Base Specification introduced a definition for spatial density distribution and regularity within LIDAR data. The requirement is that the spatial distribution…
What’s New in LP360 EXP Release 2015-1?
We will soon be posting the first experimental release of LP360 for 2015. Recall that an experimental release (EXP) is available to customers with current LP360 maintenance contracts. The release is labeled EXP because we include features that are not completely final in terms of capabilities and user experience. We have really been busy with…
Testing the LP360 Volumetric Analysis Tool
In previous articles of GeoCue News we covered how the Volumetric Analysis Tool within LP360 works, and how it can be used within a project, LP360 Under the Hood: Volumetric Analysis and Volumetrics – Do it Right!, respectively. We’re often asked how accurate or reliable the volumetric results can be expected to be. In this…
Generating Low Confidence Polygons
In the new ASPRS Positional Accuracy Standards for Digital Geospatial Data, low confidence areas within LIDAR data are defined to be where the bare earth model might not meet the overall data accuracy requirements. Generally speaking with LIDAR data this can occur where there is heavy vegetation that causes poor penetration of the pulses. If…
Case Study – Identifying Building Heights over 32 ft for the City of Franklin Fire Department
Challenge Use LIDAR data to identify building heights over 32 ft (3 stories) for the City of Franklin Fire Department to maintain a building database with elevation information. Solution The Franklin Fire Department asked if our GIS department could identify all of the buildings within the city limits that were over 32ft or 3 stories…
Set LP360 License Level
The recent service pack release of LP360 for ArcGIS, version 2014.1.51.1, now gives a Windows user with even just basic permissions the ability to change the LP360 license level if all licenses at the currently desired license level in the LP360 License Administrator are unavailable. Users of LP360 for Windows are currently able to run…