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TBC Tip #219 - Advanced Point Cloud Filtering

By Cole Schubert EXT posted 12-10-2023 12:09

  

Hello TBC’ers! With the release of Trimble Business Center v. 2023.1 loads of new features have been added to help improve user workflows and the capabilities of TBC. Check out this link here to learn more about these new features, but this tip is going to focus on just one new tool for manipulating point clouds. This new tool is the “Advanced Point Cloud Filtering” tool, which can be applied to any point cloud to create a new point cloud region using elevation as the defining parameter. This is especially helpful for creating a “ground” class from a point cloud that excludes all grasses and low lying vegetation. Here are the basic steps for this workflow.

  1. Open the “Advanced Point Cloud Filtering” tool.

  2. Select the point cloud region(s) to be filtered. 

  3. Name new point cloud region.

  4. Select desired “Filtering Options”.

    1.  Specify the filtering options, starting with cell size.

    2. Next, select the desired filtering strategy. 

    3.  Lastly, pick the XY position of filtered points. 

  5.  If applicable, select filter by polyline and set the polyline settings. 

  6. If more specific parameters are desired, this is possible directly in the command.

    1.  Users can also open up advanced settings to exclude certain points.

    2. Minimum Point Cloud Density: this option ignores a user defined minimum number of points in a cell. 

    3. Outlier Point Filter: this option can help eliminate noise points using a soft, moderate, or strong filter.

7. Click “Filter” at the bottom of the “Advanced Point Cloud Filtering” pane and that's the command!

 

 

 

 

 

You're all set! Maximize your TBC experience and ensure smooth workflows by utilizing learning & support material most aligned with your needs and personal preferences.

To download the latest version of TBC, you can head to https://trimble.com/downloadTBC.

 

Complete free self-paced workflow-based courses with hands-on guided software experiences on Learn.Trimble: https://learn.trimble.com/pages/422/trimble-business-center-tbc

 

For additional learning content, visit our TBC Survey and Construction YouTube page:

https://www.youtube.com/user/TBCSurvey/videos

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30 days ago

I am having problems when using this advanced filtering tool. Once completion of the process is finished, it shifts the new filtered region 200' ENE. this is now the third project its done it to, so i don't think its a data related problem. Possibly a setting i do not have set properly? Or even that the tool wasn't ready for public use. I have redownloaded the software and the problem still persists.

If anyone else has had a problem with this and fixed it, a share of the remedy would be greatly appreciated. I will also attached pictures of the point cloud before and after the advanced filter process. Hoping its an easy fix.