One of the difficulties today with unmanned aerial system (UAS) LIDAR and imaging sensors is the lack of good post-processing software. It is not uncommon to be told by a vendor of a drone LIDAR system that, once the point cloud is generated by their proprietary geocoding software (usually in LAS format) you are on your own. Suggestions are made such as “buy LP360 from GeoCue, Global Mapper from Blue Marble or use some other solution”. When you encounter issues such as data too noisy for a ground classifier to effectively function, the hardware vendor says it’s the software and the software vendor says the LIDAR data are defective. You then find yourself stuck in a blame game with no way to get your work done.
Our True View 3D Imaging Sensors/Systems (3DIS®) include full post-processing software from the ingest of raw sensor data (in our case, both laser range data and RGB imagery) to finished or CAD-ready products. In this week’s article I wanted to walk you through the tools that are available in our True View EVO software. I’ll do this in a bit of a workflow oriented manner.
From raw data to colorized point cloud in LAS format (all the below is accomplished via an easy to use wizard):
The next steps in the workflow depend on your planned delivery. For example, if you are doing stockpile volumetrics, it is not necessary to do a complete project ground classification.
These measurements require identical baseline datums:
There are a number of tools in EVO that allow you to interactively create 3D features (points, polylines, polygons). Some examples of these tools are:
This is a data set you can package as a zip file and deliver to your clients. Your clients can use our free EVO Explorer software to visualize and perform measurements using point cloud, feature and image data:
We have integrated what we call “Metashape for EVO (MfE)” directly into EVO to allow creation of photogrammetric products without ever leaving the EVO environment. This is a very rich set of functionality that allows POS data to be injected into photogrammetric models where correlation cannot solve for image positions. The details of this will be provided in a separate article.
The list above is just a sampling of the many tools in True View EVO. Our development is very active and uses a code base we share with LP360. This means that our UAS customers benefit from all of the traditional tools that we add to LP360 in addition to those specifically designed for UAS mapping.
I encourage you to look at the complete tool set that will be provided by your LIDAR/Camera system vendor. I think you will find that GeoCue offers the most comprehensive solution for UAS-based, fused LIDAR/Imagery in the market. After all, we are in the business of selling production solutions, not just sensors.