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9. Laser scanning
Servo motors, range measurement using laser, digital camera, very fast data collection: a few million points per one minute. The result is a photo realistic point cloud. It can be very impressive in visualization. Typical accuracy: a few mm through a few cm. Range measurement up to a few hundred of meters. Need to transform point clouds derived from different stations into a common coordinate system. Next step is to develop a 3D model from the point cloud.
Typical
application is the very fast and detail survey of complex objects in
3D, like monuments, historical buildings, archeological excavations,
trusses ...
Building Information Modelling.
Demonstration: scanning the lecture room