What is the Recap decimation algorithm?

lamorlette
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Advocate

What is the Recap decimation algorithm?

lamorlette
Advocate
Advocate

When exporting a point cloud from Recap, one can set the decimation grid spacing ranging from 1 mm to 100 mm.

Please, what are the details of the decimation algorithm run by Recap? Does it:

  • take randomly a point (or the first one) in each cube of the decimation grid?
  • create a mean / median point from all points in the cube?
  • take the point that is the closest to the mean / median of all points in the cube?
  • do something else?

Also, is it the same algorithm than the one when importing a file in Recap (in the advanced scan settings, there is a similar decimation parameter, with the notable difference that it can be switched off)?

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yan.fu
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Accepted solution

It is the following case: 

  • take the point that is the closest to center of the cube.