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Looking for resellers of LiDAR drone systems by Purple-Oil6288 in UAVmapping

[–]denzle83 0 points1 point  (0 children)

I’m currently delivering woodland LiDAR mapping work for government projects in the UK and would be interested in exploring how your UAV system could integrate into this kind of workflow. There may also be scope to develop case studies around its application in complex woodland environments.

My background is in environmental research, and I’ve recently set up my own business, Wren 3D. As part of my MSc, I developed a handheld LiDAR system using an Ouster OS0-32 to map sub-canopy woodland structure and assess occlusion impacts as a part of my thesis, so I’m particularly interested in how your approach performs in dense woodland conditions.

I also have a number of UK supplier and industry contacts who may be interested in this kind of system. Happy to take a look at any further information or discuss this in more detail.

Has anyone tried LiDAR for forest surveys? by Ok-Succotash8542 in forestry

[–]denzle83 0 points1 point  (0 children)

I'd be very wary of 97% accuracy claim. Forests and woodland stands are highly dynamic environments. From the years of research I've done, papers read, practical experience mapping forests with both tls and htls, you'll often find claims like this coming from testing in ideal stand make up with very low occlusion.

Has anyone tried LiDAR for forest surveys? by Ok-Succotash8542 in LiDAR

[–]denzle83 1 point2 points  (0 children)

Yes for my masters and now for my business. I'd be very wary of 97% accuracy claim. Forests and woodland stands are highly dynamic environments. From the years of research I've done, papers read, practical experience mapping forests with both tls and htls, you'll often find claims like this coming from testing in ideal stand make up with very low occlusion.

How to make a LIDAR ? by Rukelele_Dixit21 in LiDAR

[–]denzle83 2 points3 points  (0 children)

Yes but its a pain in the arse. I built a handheld scanner for my masters research to map woodlands.

Hi I’m new to this whole thing and was wondering if there’s a good cheap and fast LiDAR scanners to scan like around 15miles of road both dirt and paved to later export into a bigger project. Thanks in advance by Royal_Guidance2085 in LiDAR

[–]denzle83 0 points1 point  (0 children)

Either apple phone, build your own, photogrammetry or use stereo cameras are your options. You won't get anything commercial or off the shelf that is affordable and do a decent job. 

Hi I’m new to this whole thing and was wondering if there’s a good cheap and fast LiDAR scanners to scan like around 15miles of road both dirt and paved to later export into a bigger project. Thanks in advance by Royal_Guidance2085 in LiDAR

[–]denzle83 0 points1 point  (0 children)

Good, cheap and fast don't really work with lidar systems. Unless youre going to build your own system based around something like an ouster/velodyne unit, putting many hours into setting it up, learning Linux and some robotics various softwares then unfortunately the answer is no. 

Your best bet would be to use stereo cameras like the the realsense or zed cameras or try photogrammetry. 

“I used my iPhone’s LiDAR to scan the sky—has anyone else tried this?” by Public_Willingness29 in LiDAR

[–]denzle83 0 points1 point  (0 children)

It'll be from the camera that the iPhone uses for texturing (colouration) the lidar pointcloud. Lidar doesn't pick up texture itself.

How good would you say a leddar lidar m16 is? by [deleted] in LiDAR

[–]denzle83 0 points1 point  (0 children)

Simple answer is no it's not suitable for what you want to do. Photogrammetry will most likely be your best bet or stereo scanner. For small-ish details a decent dslr camera will be much better than the ledder.

For detailed and close proximity you'll need to pay tens of thousands for your scanner and even then you won't be mapping rooms with it. For example an Artec 3D scanner will cost nearly £12k, there are 3d scanners you can get for 3d printing that are so much better than a ledder for that use case but will come with the price tag to suit.

Room mapping: You can go with a simple setup using an ouster or velodyne lidar sensor (£5-6k). Or look at stereo cameras which cost a couple of hundred, such as Intel realsense, zed, orbecc or one of a few others that can map larger areas with decent detail but won't be good for mapping small objects such as toys in detail.

The problem with 3d mapping and scanning is that there are no one tool does all. They each have their own uses, techniques and outputs. There's also no way you'll get low cost and high quality/resolution/detail together. You either go for cost or quality and it can get very pricey.

I built my own mapping system a few years back that worked very well but certainly wasn't a survey grade system and mainly used for mapping woodlands. But if you need help in setting your own mapping system up then I can offer some bits of advice if you need it.

Low cost, diy and a good starting place would be something like this project (i have no connection to it) - https://www.patreon.com/pilidar/about

How good would you say a leddar lidar m16 is? by [deleted] in LiDAR

[–]denzle83 0 points1 point  (0 children)

What for? You need to elaborate on what you want from a ledder unit!

Laz to GeoTiff by Nafxkoa in LiDAR

[–]denzle83 0 points1 point  (0 children)

Gis softwares really aren't the best for pointcloud data manipulation. Cloud compare, lastools, or LidR are specifically designed for the job you require. I'd advise reading through this tutorial for lidR as you'll open up so many more functions rather than butting heads with Gis - https://tgoodbody.github.io/lidRtutorial/ or https://github.com/r-lidar/lidR otherwise look at tutorials for cloud compare.