DJI pilot Powerline inspection

Hello everyone! This is Chris from Greece. Glad to join the community!
i am a surveyor engineer working for an innovating company in Greece with lots of applications with UAVs. We consider ourselves experts in photogrammetry, but Airborne LiDAR is a whole new world that we have just dived in.
We make our tests with a DJI L1 and one of our project to investigate is a Powerline inspection in urban fields with difficult terrains and obstacles.
we want to operate a linear flight but duo to the big terrain differences we just flew manually since now and collect our data. So i just wanted to know if there is something else to make this procedure easier and more effective in LiDAR data of course.

Thank you a lot in advance!

Hi Chris!
To make your life in data processing easier, collect as much ground control, as accurately as you can.

Once you have made your model and see you data, the more ground control you have, the better you can adjust your data… consistently and over many data sets.

@Chris_GKots what kind of powerline inspection are you doing? Is this for vegetation encroachment?

Yes Alex, from in order to prevent any unexpected fire damage or any other disaster that may vegetation can cause.

Also another question that i have is if we can measure water surfaces like sea or rivers with LiDAR data?

@Chris_GKots in terms of processing the encroachment data, the ROCK Cloud can provide the data and generate a report of encroachments within a defined distance of the conductor line.

If you scan the land surrounding the water you can determine the level the water is at. But, if you are just scanning water alone most of the LiDAR points will be absorbed or reflected in a direction other than the sensor.

thanks a lot Alex!
Which are the software that you use from the whole process from scratch? the initial process, the classification, the noise removal etc?
Is it possible to download a free trial for a small period to evaluate its abilities?

You are able to upload your outputted file from the L1 into the Rock Cloud very easily. Make sure you are mindful of the projection that you select as your output in DJI Terra. Ideally you want to use horizontal: WGS84 and vertical: Ellipsoid

If you’ve done that, then you can take the .las file outputted from Terra and upload it into a project on the rock cloud, from there you are able to run it through the Rock Corridor module and get an incredibly useful output for utility line vegetation encroachment.

Here is a demo dataset to check out.