Beta release of PointCloud XR – A free viewer for point clouds in Virtual Reality

Today we release the first beta version of our application to view and analyze point clouds in Virtual Reality. We have named the application PointCloud XR and you can read more about the development and download PointCloud XR. Please add a comment on our Facebook page about your thoughts after you have tried it!

In the current version (2018-12-14) you can do the following:

  • Open points in LAS 1.2 format.
  • Depending on your hardware you can open about 15 million points and move around fluently.
  • You can “fly” around in the point cloud using your hand controller.
  • Change the size of the points.
  • Color the points by RGB, Class, Height or Intensity. The intensity can alway be blended with either of the other coloring modes.
  • Measure distance. You can snap to points and restrict measurement in y-direction or in the xz-plane.
  • Select points using a sphere. The selected points can the be removed.
  • Save the edited point cloud in PCXR-format. LAS exporter is not implemented yet but we are working on that.
  • Set a new start position. This will only work with a file saved in PCXR-format.
  • Change the throttle (how fast you are flying when you press the trigger).
Screen shot inside the Virtual Reality application.

Here is a clip when a few students try an earlier version of the application.

 

Mobile laser scanning backpack

Researchers at the forest remote sensing section and students in the lab have developed a mobile laser scanning system based on a Velodyne VLP-16 and a Novatel SPAN-IGM-S1.

More information about the ongoing work.

Mattias Tjernqvist worked with deveopment of the backpack in his master thesis in the spring 2017.
Field test with the mobile laser scanning backpack.
Field tests with the mobile laser scanning backpack.

 

 

Cameras

We have several different cameras that can be used either from air (drone) or from the ground. These are the available cameras:

Sony QX1. This camera is mounted in a gimbal and mounted to the lab’s 3DR Solo drone.
 

Thermal camera

The lab has a Flir Vue Pro 13mm thermal camera with 640×480 pixels resolution and 30 frames per second. The camera can be used to locate hot-spots when putting out a forest fire.

Here is an example of a flight in a prescribed fire in Ekträsk.

3DR Solo, equipped with Flir Vue and GoPro over prescribed fire.

Example of a synchronized video feed from a GoPro and the thermal camera:


Forest fire, fusion of thermal and RGB camera

 

GNSS receivers

The lab have two high resolution GNSS receivers. The newest is a Trimble GeoXR 6000 from 2014 and the second is a TopCon GRS-1 from 2010. Both uses RTK (Real Time Kinematic) and connects to Swepos using either Telia cellular network or through a WLAN connection with a Net1-modem. Both these devices can measure a point in a few seconds with centimeter resolution, but it needs clear vision to the satellites.

Here are user instructions for the devices:

  • Trimble GeoXR 6000
  • TopCon GRS-1 (e-mail us if you need a copy, will be published shortly)
Measurement of a ground control point for a drone flight with the Trimble GeoXR 6000.