Activity Feed › Discussion Forums › Strictly Surveying › iPhone 13 LiDAR for mh dips
@brad-ott I hate to say it but I don’t want to piddle much with it until somebody figures out a better way to do it. I’m wondering what the effective distance will be for the iPhone’s sensor? 40′ max maybe? I need to determine if C3D can even use the formats that could be exported. May be useless formats for somebody like me.
But I was considering this for potentially using against a conventional survey as-built on a stormwater pond (everything above WSE). Like to see how it stacks up and while the contractor has the pond pumped down anyway. Most ponds have a designated top elevation & width, then a slope to an intermediate feature like a shelf, before descending at another slope towards the bottom of the pond. Some have forebay berms or gabion baskets and various principal and emergency spillways. But I would be curious if the point cloud could beat conventional surveying time wise if properly referenced using strategically placed control points (maybe aerial targets or painted dots of sufficient size where the clouds is moved to coordinates). Or am I pushing something too quickly? I know drone photogrammetry doesn’t work well with reflections from water but I was wondering if the iPhone LiDAR will be different
I don’t have an iPhone, so can’t help much. However, from what I have read apple may not export a LAS file, it exports a mesh such as STL.
Pix4d has an app-specific for the iPhone. Someone should try https://www.pix4d.com/product/pix4dcatch
I just watched his newest iPhone 13 video on this. The phone’s elevation data was off up to 0.19 and an average of 0.10. This might suffice for Landscape work, but definitely would never use it for anything that elevation is key like curb and ramps grades, sewer, storm drain, etc.
I resemble that remark!
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