Drone LiDAR vs Photogrammetry | Epic Stadium 3D model
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- Опубликовано: 28 июл 2020
- We need to create a 3D model of this football stadium! See how a LiDAR Drone and DJI Inspire 2 Photogrammetry mission compare on capturing the FULL 3D model of the Stadium.
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See the data here ---> www.theindianadrones.com/post/drone-lidar-vs-photogrammetry-epic-stadium-3d-model
Hi Indiana, do you interested to testing Robosense's LiDAR in Drone application？We are so looking forward to work with you
Instablaster.
I was expecting you would be merging the two data sets- using the images to texture the LIDAR model.. would that be possible at all - and give a more accurate 3D model ?
me too
Is it possible?
It's possible.
I dig his depth of knowledge and enthusiasm! It’s refreshing.
Is there a way to blend the data from lidar with photogrammetry by matching your GCPs? Could it help to make the photorealistic 3d model more accurate?
It is very cool content. Well done, bro. Can't wait for your other projects. May be you wanna make content how to use and how accurate the rtk gps is. Thanks bro, Keep going on 🤟🏻
Awesome work and video. Great work. Much appreciated
really amazing models, nicely done!
Great video 👍🏼 I would like to see combining lidar and photogrammetry results too.
First: You guys make great videos!!! At this video it looks like you compare the LiDAR point cloud with the 3D mesh model from photogrammetry (based on pc)... How does the photogrammetry point cloud looks like? This would be the right comparison in my opinion.
Even with the "not so great" Inspire Camera Setup (for photogrammetry) you should get a point cloud which delivers more information then the bad looking drone deploy mesh model.
I had this question, too. If you're doing an apples to apples comparison then look at the point clouds. I'm curious if there is an accuracy advantage to using LiDAR over good photogrammetry algorithms because I've been able to get very good accuracy with photogrammetric setups.
That's a pretty decent point
I've used photogrammetry from the Phantom 4 Pro v2 to create point clouds in Pix4d. There is definitely 'fine detail' material missing when it comes to the conversion. In an example, I use the Leica GS18 to measure the corner of where the flat concrete edge of a sealed road meets the front face of the kerb; we call this the Channel. Our GPS gets accuracy of +-0.02m. Photogrammetry picks up the flat edges pretty well but, not the corner. There isn't enough information, converting to point cloud points within that small area from photogrammetry, to place a horizontal and vertical marker/point right in the corner. It comes down to how precise you need your information to be. Of course, you can extrapolate the corner by triangulation, if needs be, but then that's extra processing time. Lidar can spit out anywhere from 250,000 points per second, depending on the unit used. Way more information!
Awesome, carry on the mission.
Such great informative high quality content. The BEST on RUclips.
Curious, what's your process for setting your elevation for your clients that need to work with your survey data? Do you work in NAD83 (state plane) horizontal coordinate system along with NAV88 vertical datum using a geoid to obtain orthometric heights? What do you tie to for your vertical readings? A nearby benchmark? Or are you just basing everything off of ellipsoidal height and your control points? Thanks!!!
Great video as always!
Hi, which software you are using to process your lidar data?
Well done!
You physically look like you're in pain from forcing such a big smile lol
OUCH!
Why would you say that, can't you just enjoy this state of art technology. Well done In Indiana Drones. Great work. Very educational.
Did you also used SLAM for localization while doing point cloud registration or only feature matching ?
The LiDAR data are really amazing! But it is not fair to compare a LiDAR point Cloud with a photogrammetry 3D Mesh. These are 2 different things!
But however, if you use lidar data to compensate photogrammetry, you can get a sharp, crisp yet real coloured point cloud, and this can help to compensate missing edges and discolourations, especially if you know how to write up python code to do close neighbour averaging for the point cloud data, then you can have something close to what very expensive software such as pointfuse can do to generate preserved edge convex 3d models that have close photorealism.
I know this comment is very old now but I just want to point out, since I ever did this myself when I worked on a 3d web project utilising this method, since a lot of the data the team provide (I wasn't the main operator for the scanner) was missing in details and I match them up this way and generated the models
Oblique photos are critical for 3D rendering. I cannot stress enough just how important oblique photos in your Drone Deploy uploads. Especially for stockpile volume calculations.
Hey guy
Let me know if it is possible to extract directly point cloud data from the lidar sensor with a USB cable. Thank you for the information
Great content. Thank you!
My pleasure!
Thanks for your great and informative videos. Can you please make a video on using a drone/LiDAR to automatically map agricultural drainage ditches? I am doing a research project on this, and am very interested to see how this could be done. I have never used a drone before but am keen to get one to use for my research to collect my own data.
Excellent video
Photo looks crisper and better.
Hi can you compare the 2 datasets against each other, maybe run a section through and see how the look against each other?
That's a good idea. I will add to my blog post some cross section overlaid on each other
It’s awesome watching your videos. I do research on using SfM in forest structural mapping and we use a lot of the same equipment. Those RS2s are AMAZING! I have a bunch of their RS+ receivers and 3 of the RS2s and I dont know what I would do without them. For the SfM in this video, I was wondering if you were flying with any angle on the sensor or if it was flown at NADIR?
Can u measure the depth of the stairs / stands using photogrammetry or u need LIDAR for that. Also MSL height ?? or do u take that from GPS ??
Love it bro
Why you you have your phone in your hand. Does it.double as a data collector? Thats amazing with phoyogramatry. What where your settings. Like how tight where the lines ASL. Its looks amazing
Nice video!
Very cool!
Is it possible to get access to the raw lidar and raw image data?
sick
Cool! Can you survey some river banks or cool hydrological features think that would be awesome
It would be amazing to get some device that uses both lidar AND photogammetry and then uses AI to interpret the data and make a 3D model.
I think if the geometry would get interpreted by an advanced AI the model could get near perfect.
Hello Brother, I loved your content please don't stop.
I was wondering how I can accurately know where do I have to place the GCPs ?
Hi sir, great vid as usual... well, I've been working as a LiDar data annotator and quality control analyst for two years now at Scale AI, just want to ask you sir if there are some other online sites that you know or recommend that I can work remotely from home working with LiDAR annotations.
Can lidar data be used by architecture for construction ??
very interessting. are you flying the crosshatch pattern via computer or manually? are you flying this pattern on the same altitude for all the area (outside, above, and inside the stadium)? thanks
Please write to hello@rockrobotic.com so my team can help get you some answers.
Magnifique ❤
Thank you!
Combining the laser scan with photogrammetry in software like Reality Capture or Metashape would get you a great model with great textures.
this can be done via two different sources (drones)? probably most important is geolocated ground points, correct?
how come your GPS is not having any magnetic interference when they're positioned so close? i kept my GPS close and my GPS keeps failing with large magnetic interference with max magnetic field length in log analysis.
Hello how do you tied data to ground control points in software
Thanks for the video -
So would photogrammetry survey , yield us data points with levels in XYZ coordinates? or is it possible only with LIDAR and Total station ?
Hi! You can use photogrammetry also to generate digital terrain models (DTM). Using this DTM data, you can compute orthophotos, which are geo referenced.
very cool.
Hi love the video and ur explanation ..
Got a question ? If you wanted to scan a forest for volumes calculation of the trees what system would you use.
Thx brian
Thanks for your feedback! Feel free to bring your questions and requests over to the ROCK Robotic Community discussion board. Our support team is ready to answer all of your questions.
community.rockrobotic.com/
Can you go back and re shoot areas of insufficient data to mesh back in with the data to clean up the dead areas? Sort of a touch up. Nice work
Let me ask you something.Do you think that we can use LIDAR on a M300 RTK for example, search for drowned bodies under water ???
Are you doing the landfill in Columbia Missouri
What's the point per meter used for Lidar survey? @Indiana Drones
Do you have any kind of surveying-specific certifications?
Great video, try audio ducking in your editing program. Saves tons of time
I love the crispness of your data, what software do you use to process and review your LIDAR data?
I'd love to know too
ROCK Cloud
Very good video. Why did you need to use both methods for this? Main question is we’re you able to “mesh” the best of both surveys and how? Thanks, very informative.
Yeah you can merge the two together using the ROCK Cloud! Check out www.rockrobotic.com/cloud
Nice comparison. I am not aware about the mission parameters of the photogrammetry flight, but from the result I guess that you were using a single camera in NADIR direction. When it comes to modelling 3D buildings, many people recommend off-NADIR (oblique angle) captures. These days, readily available payloads with 4-5 cameras looking at different directions simultaneously may be much more appropriate for the featured application. And their price of around 4000-5000 USD is still cheaper than the price of UAV lidar systems (DJI Zenmuse L1 ~18000 USD)...
would a fish-eye or 360 camera produce similar results to off-NADIR 4-5 camera payloads? I just assume it wouldn't be as high of resolution...
What was the flight altitude ad the distance between the survey lines? And i'm just curious if you have ever had a heave/tide issue on the processing stage.
Please write to hello@rockrobotic.com so my team can help get you some answers.
Awesome content. I love the enthusiasm that comes with each project and with the explanation of each part of the workflow.
One question I did have was concerning your ground control points. I didn’t see any GCP pads laid out, so were you pulling known points from the stadium itself? If so, was that something you coordinated with the engineering department?
I believe he was using markings in the field as makeshift GCP Pads.
How does Laser pick up the Yellow colours
Greetings your videos are excellent congratulations,
Could you help me with a question? I have these 2 matrice 600 equipment and an inspire 2 and I want to do the same test in my country but I have a DRTK 2 DJI antenna. Can I use the information for post processing with emlid?
Not sure. You should ask this question on our discussion board. Visit community.rockrobotic.com to get some answers!
holaaa excelente video quisiera que permanezcan haciendo videos similares... Voy a seguir mirando sus creaciones. Les envio un saludo nos vemos luego 🤞🏽👍🏽
What class air space was you in.
can you combine the two?
Great video! What mapping software do you guys use on the iPad for lidar units?
He used dronedeploy for photogrammetry, the lidar saves data on board and then you have to export it and process it on computer.
@@sircher943 Yes I understand he used dronedeploy for photogrammetry and I know the lidar stores data. I wanted to know is he flying the lidar unit manually because if he is then how is he accounting for overlaps? He has to use some kind of app that will fly the mission without a camera. Apps such as maps made easy or ground station pro won't let you fly without a camera mounted on the drone.
This would be good for flight sim 2020 add ons, epic video mate
Even better, you could conceivably use Lidar to capture accurate models of local roads to insert into a driving simulator.
Of course they already do this for race tracks in many simulators these days
@@Erowens98 true
Thanks again. How did you get RGB values in the lidar data?
Well, we actually flew an RGB camera that is co-aligned with the LiDAR, but I am not a fan of the results. So I took the photogrammetry model and pulled the color from the map and transferred it to the LiDAR data. If you check out the dataset here --- www.theindianadrones.com/post/drone-lidar-vs-photogrammetry-epic-stadium-3d-model
You can switch between the RGB and Intensity view, and this is basically how well the LiDAR and Photogrammetry align. Its pretty spot on!
@@IndianaDrones good stuff, how did you transfer the color from the photogrammetry model? What software are you using? Thanks
I'd also be interested in the software being used to view the data. Seems pretty quick.
There's several programs you can use to colorize LAS/LAZ datasets. ArcGIS Pro added the functionality sometime last year. LAStools can also do it as long as you have an orthorectified .TIF image.
@@monstersbox lidar data is converted to Potree format. Available for free here: github.com/potree/potree
@@monstersbox have you any links to tutorials to colourize the las/laz data
Id like to see using LIDAR to measure surface elevation through overgrown property. Important for landslide mapping.
No problem! ruclips.net/video/3Hd_0lFr7ik/видео.html
I would have like to know a little bit about what your data was being used to solve. I can’t help but think that 1cm (more like 3cm) is not accuracy enough for engineering a structure. It sounds great for land surveying but problematic for buildings. I would have like to have seen a few scans from a P50, overlay your area data for infill (removing the overlap) and apply the photo wrap. That way you would have 1-3mm precision great infill and color to boot.
That said cost is always an issues. P50’s start at $5k to rent not to mention the software to extract and clean up the data.
How big (data size) was this project in the end?
Legend! =)
* Tips hat *
Can you combine them?
Awesome video!! Can u post something about bathymetric survey using LIDAR?
Yes we can! But I need your help! Can everyone reading this comment send an email to office@riegl.co.at
And say, I want an Indiana Drones Bathycopter video! 🥳🥳🥳
Love your content! Keep up the great work!
How is it that the LiDAR data set has colour? Do you have a camera alongside the LiDAR?
Simple answer: Yes. Longer Answer: LiDAR only logs the reflective/intensity value of each return. You need an RGB data source to apply to the points. In most cases, you would also have a camera (RGB or some other passive sensor) logging while collection the LiDAR. He could have also used the images collected with the Inspire as well to overlay on the LiDAR once the images were processed.
The Inspire images were used to colorize the pointcloud just as @Nett Air mentioned
Hi great video, I would like to mention that IMO you could be using a better photogrammetry setup, you are comparing a high-end quality lidar system (among the different lidar possiblities) vs a more or less mid-end quality photogrammetry system (among the different photogrammetry systems possibilities) from my point of view. Also you are comparing the point cloud of the lidar post process vs the mesh of the photogrammetry postprocess, I don't know if drone deploy can postprocess the pointcloud but in pix4d, sometimes I see point cloud more accurate and sharp than the mesh. I really like this sector and I've been testing lidar vs photogrammetry sometimes trying to improve the photogrammetry weak points trying to reach the "easy to get" lidar quality.
Agreed with regards to processing and Camera. If you want to compare surface (point cloud and mesh) products, you need to use local processing for SfM/MVS. I suggest using Metashape/Photoscan as their point cloud products are generally superior to pix4d. Also, general wisdom is to use a camera with a mechanical/global shutter for photogrammetry (So, X4S instead of X5S). Cool presentation overall, I like your enthusiasm!
Seconded. Metashape or Pix4D is where it's at. Pix4D is more popular with industry, and more is more expensive but easy to use. Metashape is more popular with researchers and is also cheaper than Pix4D, but can be more complicated to use. I think it has more functionality than Pix4D though.
Aye its Todd from breaking bad, great video btw
Overall nice video! However that's a LiDAR point cloud vs a photogrammetry 3D mesh, so it's not a fair comparison. Would have been a better comparison if you compared the point clouds generated by each sets of data. I haven't used LiDAR myself, but I'm sure you could generate a 3D mesh from it as well.
Thanks for the feedback!
The entry into Lidar is beyond my means, very expensive. Can you enter the Photogrammetry market with an Inspire and what camera do you recommend? Thanks
I think the minimum for commercial photogrammetry would be a Phantom 4 Pro as it has a global shutter and produces great photos without distortion.
@@sircher943 I think you mean mechanical shutter? Mavic Pro 2 is perfect for photogrammetry on the go. Software like pix4d has algorithms for rolling shutters.
Awesome models!! How long does it take for a mission in a football stadium?
It took about 3-4 hours on-site to meet with the grounds crew, set up, fly both missions and get GCPs.
Hey man. Which Software did you use for the lidar model and Which for the photogrametry? Thx
He never answers this question in his videos...something strange going on
@@AngelSanchez-du8ze He was talking about DroneDeploy for the photogrammetry data
Excelent
hi there, im new to drone mapping, i want to learn how to do mapping and surveying using Drone, i have reach RTk.
These are my question:
1. which is cheaper set-up the lidar or Photogrammetry
2. can photogrammetry method generate topography?
1. Photogrammetry
2. Yes
hi there im nathan and im from Trinidad and Tobago ..... so HI FROM TRINIDAD AND TOBAGO . I have some questions concerning the use of drones in land surveying . Im 18 years old and now about to start my degree in geomatics and im pretty new to the entire land surveying scene and my first questions is other than volumetric data collection and topographic map use can liDAR or even drone technology be used in cadastral and boundary surveying and can you (if possible ) talk about like a list of application for drones in surveying( liDAR or otherwise) and where can one go to learn and train to use drones for this field . I wanna learn drone surveying because in my country is 10 years back in technology and i would like to be one of the person to introduce this sort of technology Also(if possible) can u talk about what you do in general like overally as a job. So yh . And apart from the question i must commend you on the quality of your videos its truly top notch and i love it . I hope your channels grows to insane numbers because more ppl need to see this content its truly amazing
Which LiDAR Scanner is the best option for roads modeling?
ROCK Robotic R2A - www.rockrobotic.com/drone-lidar-hardware-r2a
can you capture M&E as well?
Have you tried to integrate both data into a single 3D model? There are software that can process both data, to get the best of both worlds (3D constrain and precision from Lidar, and photographic texture from photogrammetry), and in fact, it can increase overall spatial resolution.
Hi Marco, what software packages are you referring to?
@@Alphonsus01 there is realitycapture, bentley contextcapture, and there might be others that I'm not aware. I know that they can combine it. I have used realitycapture 1 or 2 years ago, and back in the day, it was really cheap and really really fast to process adn with amazing results. Comparing to others,I would say it was 400% faster than all competitors. (License was 100 usd for 3 months usage, I don't know if it is the same, and there was a cheaper version on Steam)
I've heard nothing but good things about realitycapture! This will be my first time using it. If anyone has experience with this and could help out, I would be happy to send over the raw data!
@@IndianaDrones there are plenty tutorials. From what I just noticed from their website, cheaper versions have limitations (no of images or no of scans). They have some discussion groups in facebook as well, where someone might be able/willing to help you out.
Yeah reality capture is very good at photogrammetry but only accepts structured lidar data e57 format from terrestrial scanners. It won't accept any format from my livox lidar anyway. Maybe others can tell me otherwise
Great video! However, You compared point cloud vs a 3D Mesh-Texture. I recommend doing another video showing the point cloud from the RGB camera instead of the texture. This way, you will compare apple vs apple. Thank you for the great work!
Thanks for the feedback! Check out my channel for all kinds of informative content!
Why did you look at the pointcloud from the photogrammetry???
Interesting thank yout
wich lidar sensor did you use to do that? thanks for your answer the video is great
Rock R2A
www.rockrobotic.com/r2a
I would like to see you fly a highly dense vegetative piece of land or forestry with your lidar setup and extract the ground data only. Or cleanup the vegetation and trees, leaving just the ground data.
I'm retired surveyor(about 40 years), ... I am not excited over the LIDAR(still costs too much), as much as I am over the photogrammetry(lot cheaper).
How precise is the Photogrammetry, in the best and worst case, compared to the LIDAR ... how was the accuracy of each compared to the other?
I might consider using photogrammetry for such things as cemeteries, since the headstones would be greatly benefitted with photos.
Have you ever attempted recovery of old, worn, sandstone monuments' etchings(over 150 years/Civil War), with LIDAR?
Great vid. Can one create a 3D mesh from lidar?
It's difficult, something we're working on.
Photo data on Drone Deploy site is expired. Is it anywhere else? Thanks!
Please write to hello@rockrobotic.com so my team can help get you some answers.
As far as I understand, it is not possible to mount lidar sensor to DJI Phantom 4, am I right?
Not yet 🤤 but that would be awesome
@@IndianaDrones Thank you for response. I subscribed your channel and checked other videos. So far the cheapest alternative drone model that you could mount the lidar is DJI Inspire 2, if I get it right. I am a geologist interested your work. I would like to contact you in future. I think you guys also written a program for interpretation of the data! I will check your videos would you offer me one for the programmes you use. Thanks in advance. Keep up the good work.
Hey man this is really cool! My team is working with UnrealEngine simulating real world locations in Japan (digital twin). Our field counterparts dont have this dope tech. They should hire you! Any chance you dropping by Japan? 😅
There definitely is! Could you email me. Harrison@rockrobotic.com
Fun video. I do wish you'd pay more attention to the audio.
Glad you liked it!
Awesome video, is there a chance u can do comparison of those systems at night? That would be unique content, and it would help me a lot xD :D
Hello thank you so much for these videos. I want to start a drone company doing this exact same type of jobs your doing I would like to know what you would suggest for a long distance drone and LiDAR combo and what tips you have for me because I want to make this a career and find as much work as I can
Check out the other videos on my channel and reach out to us if you need help! We can answer all of your questions and help get you started.
www.rockrobotic.com/talk-to-sales
What type of Lidar did you use?
www.rockrobotic.com/r3-pro
Hola indiana drones…
Excelente video
Gracias por tu aporte….
Cuanto dólares cuesta en lidar…???
Tengo un matrice 200…. puedo incorporar el lidar…????
Gracias
www.rockrobotic.com/rockcloud
New subscriber here, love your content! I am a drone pilot myself, and I am looking for a lidar drone myself. I am particularly interested in using drones with this type of technology for archaeology and mineral detection. Any recommendations? I'd be happy to email or chat on social media. Super great videos, god bless
Visit www.rockrobotic.com/store to learn more about pricing options! Feel free to reach out to us or schedule a demo.
can you send me the flight path and result data
Can you do Lidar, photogrammetry, 4K+ video and thermal all in one go (as in the one flight)?
You can do LiDAR and Photogrammetry. The others are better suited for their own sensor and flight plan. Check out this article I wrote to learn more about merging captured LiDAR and Photogrammetry.
www.rockrobotic.com/post/capturing-lidar-photogrammetry-in-a-single-flight-earthworks
@@IndianaDrones Thank you