I recently got the request to determine contact wire heights from multiple years of point clouds with the goal of doing a trend analysis. Point clouds acquired in four years were available, all of them acquired […]
Point Clouds
13 posts
Modern Mobile Mapping systems make it very easy to quickly map large areas. Current laser scanners with pulse rates of 1 MHz and above make it possible to achieve sufficient point density even at highway driving […]
Point clouds acquired through laser scanning with mobile mapping systems mounted on rail vehicles have become the de-facto standard for efficient large-scale mapping of rail infrastructure. Unfortunately, point clouds are large and unstructured heaps of data […]
Okay, let’s be honest: Despite what the manufacturers of laser scanning equipment are trying to tell us, nobody really wants point clouds. They are huge blobs of unstructured and often noisy data with a low semantic […]
When you have many point cloud files that are not tiled, it can be tricky to find the one file that covers a certain geographic area. One way to deal with this is to construct the […]
I have many years of experience with Mobile Mapping and created various related software packages. Trajectory analysis Processing Mobile Mapping data starts with computing a good trajectory. I’ve written TTools to analyse trajectories in Inertial Explorer […]
Laser scanning produces huge amounts of data. The challenge is to extract meaningful information from these point clouds in an efficient manner. The first step is classifying the point clouds. There are different approaches to automatic […]
Geographic information often requires specialist software for viewing and analysis. An additional challenge is the large data volume, especially in the case of point clouds. This poses a challenge for easy viewing and querying of this […]
In my previous post I showed how to use Potree to create a web viewer for point clouds. But it doesn’t stop there, as Potree is also capable of displaying other geographic data. The Shapefiles example […]