Park benches survey

[analytics67]

We're doing a UAV survey of a local park with tons of benches like around 10,000 of them. The client wants a point cloud and elevation data for each bench so they can import it into their GIS.

what's a good and maybe easier way to tag each bench with its elevation and then export all that into a table for GIS? Would some kind of feature extraction be useful here? Any workflows you've used for something similar would be amazing

 

[paxsmith]

ouuu that's a lot of sitting potential, and a serious data task. with a point cloud, I'd say yeah, feature extraction is your best friend here. Tools like ArcGIS Pro or CloudCompare can help auto detect features like benches if the geometry's consistent enough, then you can tag elevations using ground filtering or height above ground models.
Once you've got the features identified, exporting to a table with XY and Z values is pretty straightforward, especially if you batch process it. Bonus: if you name or number each bench in the extraction phase, it's easier to track in the GIS later. Done something similar with light poles once… less romantic than benches, but still satisfying.

 

[A. Forrest]

Your best bet now is to semi automate it, use object detection to ID bench locations from the point cloud or ortho, then snap a point to each, then extract Z values to get elevation, simple. ArcGIS Pro or QGIS can handle the export to a table

 

[b99]

We're doing a UAV survey of a local park with tons of benches like around 10,000 of them. The client wants a point cloud and elevation data for each bench so they can import it into their GIS.

what's a good and maybe easier way to tag each bench with its elevation and then export all that into a table for GIS? Would some kind of feature extraction be useful here? Any workflows you've used for something similar would be amazing

Ok let's be for real. Semi-automating with object detection saves tons of time. I think you can go for either ArcGIS Pro or QGIS for that final table. It's gonna make life way easier.