Kaarta Stencil as a mobile scanner

MDL Dynascan, ABA Mobile Mapper, StreetMapper, IP-S2 Topcon, RIEGL VMX450, Leica Pegasus One, etc
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john_rtf_123
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Kaarta Stencil as a mobile scanner

Post by john_rtf_123 » Sat Nov 04, 2017 2:43 pm

Hi,

does anyone here have any experience in using kaarta products, more specifically their stencil. The datasheet and videos of kaarta look impressive but I wanted some first hand information from users.

I intend to use it as a mobile LiDAR atop a car. Is it possible to get survey grade accuracy(<4 cm) in horizontal and vertical using this product. Are there any issues while using the product? Also how realisitic is it to generate 3D maps of highways using a stencil atop a car or hand-held? Are there any better products at that price range (sub-$50k) for this purpose.

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Re: Kaarta Stencil as a mobile scanner

Post by LPaulCook » Sun Nov 05, 2017 2:43 pm

You would need lots of survey grade control (targets) quite often on the ground being scanned to control the massive point cloud at the very least. How else would you know where level was or how to tie into historical coordinates? Accuracy the state is +/- 3cm. but in what distance, and what about accumulation of that much error.

Think of aerial topographical surveys via photography; they always require known xyz control targets on the ground, so would this method.

Anyone out there have tried this? If so, what were the verified results with this type of scanner?
L. Paul Cook, PLS
www.LPC3D.com

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Re: Kaarta Stencil as a mobile scanner

Post by john_rtf_123 » Sun Nov 05, 2017 3:31 pm

LPaulCook wrote:
Sun Nov 05, 2017 2:43 pm
You would need lots of survey grade control (targets) quite often on the ground being scanned to control the massive point cloud at the very least. How else would you know where level was or how to tie into historical coordinates? Accuracy the state is +/- 3cm. but in what distance, and what about accumulation of that much error.

Think of aerial topographical surveys via photography; they always require known xyz control targets on the ground, so would this method.

Anyone out there have tried this? If so, what were the verified results with this type of scanner?
Thank you for responding. You raise some valid questions. They claim that their technology uses superior LOAM algorithms. They do have top ranking on kitti benchmark suite, that should mean something at least.

I'm primarily interested in the instrument for mobile(Car based) scanning. My required range is also limited to 15metres.
I'm skeptical about the claims since most mobile scanners cost upwards of $100k, like Leica Pegasus 2. I'm trying to get some verified cloud data from the product. Will post if I get something.

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