Laser Scan VS LiDAR Scan
If you were going to choose between a Laser Scan and a LiDAR Scan. It might not be easy to decide immediately, as both technologies have different technological foundations.
Laser Scan is a technique used for laser light to capture geometric shapes or objects by emitting light onto the surface object and measuring the time it takes for the light to return. This time is used to calculate the distance, and the obtained data and used to create a digital model, which is referred to as a Point Cloud.
LiDAR is a remote sensing technique in the form of scanning where laser pulses are sent out to measure distances and create a 3D map of the terrain. It uses the reflection of lights and measures the time taken for the pulse to return. This allows for the creation of a Point Cloud Model of the surrounding area that has been scanned.
When comparing both technologies, it can be observed that:
Usage: Both technologies use laser light, but they differ in their focus. Laser Scan is more focused on capturing small details and areas that require high precision while LiDAR is used to measure distances over larger areas and it requires greater penetration power.
Results: Both technologies produce a Point Cloud, but they differ in the density and level of detail. Laser Scan provides denser and more detailed data while the data obtained from LiDAR is more similar to that of SAR (Synthetic Aperture Radar), offering lower resolution but covering a larger area.
Based on the advantages of each technology, we can summarize as follows:
Laser Scan offers high accuracy and resolution, making it ideal for tasks that require detailed models, such as structural work, inspections, and 3D modeling (VR).
LiDAR Scan can collect data quickly and over a wide area. It can be applied in various fields, such as installation on vehicles mounted on UAVs to capture surface data in forest areas, civil engineering, and urban planning projects, as well as in monitoring and disaster relief efforts.
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