SLAM and LiDAR Cave Mapping

[JonG1]

Minimal Mayhem Jas does this mean anything to you following our conversation about AL

 

[Wkeke-V]

Hi Addison
I was reading your article and it is of a lot of interest for me.My name is Kevin and I live in the small island of Malta in the Mediterranean so we are quit far away. I have always wanted to scan and 3d model the huge number of submerged caverns and small caves we have around the island and this system looks like could be the solution.
Would it be possible to get se more detailed information from you about the full process?
If you can it would be greatly appreciated.
Welldone once again.. And I look forward to be in touch with you.
My email creativeshot@mail.com
Hope to speak soon

 

[ntlhui]

@mariosx @Addison Snyder my group has been working on similar stuff in a slightly different context. Some of our collaborators have recently published some papers in ISPRS (see ISPRS-Archives - FROG: A PORTABLE UNDERWATER MOBILE MAPPING SYSTEM) that might be worth looking at. The next ISPRS conference is in June in Las Vegas, and there may be some discussions of relevance there.

 

[mariosx]

@mariosx @Addison Snyder my group has been working on similar stuff in a slightly different context. Some of our collaborators have recently published some papers in ISPRS (see ISPRS-Archives - FROG: A PORTABLE UNDERWATER MOBILE MAPPING SYSTEM) that might be worth looking at. The next ISPRS conference is in June in Las Vegas, and there may be some discussions of relevance there.

Pretty nice reconstructions you got there... This conference indeed was not in our radar.

I have switched focus more on aquaculture applications at the moment, but if you are interested I recommend checking with Dr. Rekelitis group. Also in my current group we are interested on benthic monitoring but unfortunately, I have left the US and international collaborations are a bit more challenging funding-wise.
I ll check your work more carefully and I would send you a pm if I have any questions, assuming you don't mind.

 

[Addison Snyder]

I've talked to Dr. Rekelitis here in Gainesville. Pretty similar stuff to what I'm working on, but their component list is definitely in the five or six figures range. Particularly their forward scanning sonar reliance. Time will tell if it transforms into a more replicable and accessible solution. Still really cool stuff though.

 

[dylanfromwinnipeg]

I've been looking into this topic recently, and it seemed to me that photogrammetry seemed like a promising low-cost way to get 3d scans of caves. The processing software is pretty advanced and abundant, and the only hardware needed is a good camera.

I spend half the year in the mexico caves, so plan to give it a shot this winter.

 

[wetb4igetinthewater]

I've been looking into this topic recently, and it seemed to me that photogrammetry seemed like a promising low-cost way to get 3d scans of caves. The processing software is pretty advanced and abundant, and the only hardware needed is a good camera.

I spend half the year in the mexico caves, so plan to give it a shot this winter.

You can improve your results with stereo photogammetry. It isn't so easy to do (I know one university that was looking into this without results). Check out the Voyis system.

 

[dylanfromwinnipeg]

You can improve your results with stereo photogammetry. It isn't so easy to do (I know one university that was looking into this without results). Check out the Voyis system.

My understanding is that there aren't a ton of stereo rigs available, and that the mainstream software is more targeted at the non-stereo setups that most of their users use.

I get that using a stereo rig gives more useful source data, but it seems like the software has advanced to the point where that isn't necessary anymore.

 

[dylanfromwinnipeg]

My understanding is that there aren't a ton of stereo rigs available, and that the mainstream software is more targeted at the non-stereo setups that most of their users use.

I get that using a stereo rig gives more useful source data, but it seems like the software has advanced to the point where that isn't necessary anymore.

For non underwater photogrammetry, it seems like using a laser device in combination with a camera is a common scenario. But the common laser devices don't work underwater.

 

[wetb4igetinthewater]

For non underwater photogrammetry, it seems like using a laser device in combination with a camera is a common scenario. But the common laser devices don't work underwater.

Your talking about what the oil and gas industry have been successful at doing, but pretty much no one else.

Voyis did seem to have something going, but they appear to have pivoted to photogrammetry only.

To date, there are only three companies that make proper laser scanners.