What is LiDAR?
LiDAR is the acronym for “light detection and ranging”. Lidar is a method used for determining ranges by targeting an object with a laser and measuring the time for the reflected light to return to the receiver. This process is also sometimes referred to as laser scanning or 3D scanning.
How is LiDAR data collected and processed?
Before LiDAR data can be collected a boundary and control points must be set. The control points are then used to establish the base points that the drone and LiDAR equipment will reference during the course of the flight. Once the point cloud data has been collected, the base station files are run through the Online Positioning User Service (OPUS), to gather local atmospheric and other corrections for a higher point of accuracy. Our technicians then upload those corrections into our processing, which tightens up the potential error for positioning. As an additional step, we also utilize survey equipment to set Ground Control Points (GCP’s) to line up the point cloud data similar to how traditional survey methods reference collected points with a known point.
Do I need to set my own control points?
It is considered a best practice to set base control points before attempting to collect point cloud data on a project site to ensure accuracy. Geolucix can set these controls points for you, or we can work with the control points that your team sets in the instance that a client prefers to do it themselves.
How does LiDAR compare to traditional surveying?
Traditional land surveying is a fundamental step in any land development project and can be complemented by the addition of incorporating laser scanning technology. LiDAR is a proven technology that can be utilized as a tool to augment existing land surveying processes to reduce project costs and time in the field during the land surveying process.
Why should I use LiDAR Services?
Capturing point cloud data using LiDAR technology allows Geolucix to swiftly provide reliable design-grade data to our clients in a fraction of the time it would take to collect this information using traditional ground surveying methods. As a result, our clients are able to more efficiently utilize their field staff and reallocate resources to more projects. Geolucix LiDAR scanning services also help alleviate the need and risks involved with sending technicians into treacherous and unsafe conditions, which in turn can complement and improve field safety procedures.
What data format will I receive?
Point cloud data can be packaged in a variety of ways. At Geolucix, we tailor our data packages to the needs of our clients and their specific project goals. One of the most common file types we provide is LAS formatted files which are compatible with Topo DOT and other popular surveying software platforms. We also commonly package data into DWG contour files for our engineering clients to be easily imported into their CAD project files. For utility clients, we can provide point cloud color scans to assist with large-scale design and redevelopment projects. Our General Contractor clients often prefer aerial progress photos and photogrammetry images to assist with tracking construction development and expedite their as-built surveying processes.