Useful links for Software and information
• Aplitop has a good association with Stonex and supplies software called Tcp PointCloud Editor.
• Cloud Compare is free open source software to view and edit point clouds. There are many tutorials on its web site and on You Tube.
• Recap from Autodesk is 3D Points cloud software with a free version (limited features) and a professional subscription version.
• PointCab is well used in the industry and has a free version of the software to trial before purchase.
SLAM LiDAR and Frequently Asked Questions
1. What is the SLAM?
SLAM is a cutting-edge mapping device that uses algorithms to utilise points captured by either a laser scanner or a optical camera to create a map of the environment that surrounds the SLAM device. Using this point cloud in conjunction with data from accelerometers and gyroscope sensors a pixilated 3D map of the surroundings is created relative to the SLAM device.
The millions of recorded 3D points can be given an absolute position in X, Y and Z coordinates. This allows for accurate mapping of many features very quickly.
2. How accurate is the 3D point cloud?
A 3D point can be accurate to less than 1cm. Factors such as how distant the captured point is from the LiDAR and how fast the SLAM LiDAR is travelling when capturing points can affect accuracy levels. It is beneficial to plan your trajectory of data capture and use ground control points to reduce drift.
3. What are the key features to look for when choosing a SLAM LiDAR?
– High-precision LiDAR sensor for long range capture of points.
– Wide field of view both horizontally and vertically.
– Rate of point capture per second.
– Cameras for colour photography so that colour rendering of the point cloud can be done during data processing.
– User-friendly interface and processing software for intuitive operation and data analysis
3. What applications suit the SLAM LiDAR?
SLAM LiDAR is versatile and can be used in the following.
– Construction for ‘As Built’ and creating a Digital Twin.
– Open cut and Underground mining
– Urban planning and infrastructure development
– Environmental monitoring and conservation
– Archaeology and cultural heritage preservation
– Forestry and vegetation management
5. Can SLAM LiDAR be used inside a building or cave?
Yes, SLAM LiDAR performs equally well indoors and outdoor environments. SLAM technology does not require a GPS signal to create a 3D point cloud. This makes it ideal for use in under ground mining applications. It also works equally as well in a bright room or a totally darkness.