Target for FARO Scene

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NickP
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Last seen: 3 years 2 months ago
Joined: 08.01.2014 - 11:23
Target for FARO Scene

Hello everybody!

Does somebody know with which target can I achieve a better registration accuracy in FARO Scene?

Nick

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lklevenow
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Last seen: 1 day 13 hours ago
Joined: 30.03.2011 - 07:47
Registration accuracy with different targets

Hallo Nick,

First I have to say that you get more accurate results with a sphere from a professional provider for laser scanning equipment. Due to its geometry, the sphere has the advantage to look the same from all directions, that means the center is located exactly in the center. Note: The registration software determines a center based on the points on the sphere and teh defined radius. The accuaracy of the defined center only changes a bit with the measurement angle and the distance between sphere and laser scanner.

In case of a checkerboard target, it's different. With increasing distance between scanner and target, the distance between the measured points becomes larger. Thus, you cannot exactly define the center of the checkerboard and the inaccuracy of the registration is higher.

In case of natural features such as edges, corner or surfaces, it's similar to checkerboard targets. Resulting from the different angles the laser beam is detected, not every edge can be defined with the same accuracy from various positions.

Best regards
Lissi
LSE team