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Gaussian SplattingLuma AIMatterportRealseeREALSEE Galois LiDAR CameraVersus

Matterport vs Realsee - Episode Three19948

Los Angeles
Home3D private msg quote post Address this user
Here is a large and challenging home construction site captured fully, indoors and out, with both Pro 3 and Realsee Galois. Why do I say challenging? A variety of reasons. Two floors, but with unusual elevation separation because ground floor has extra high ceilings. Some areas are "split level" so portions are in between ground and upper level. The terrain is sloped so establishing “floors” is difficult in exterior areas.

Also, this is a construction project with scaffolding around much of the exterior. Makes for a messy mesh that doesn’t display cleanly due to the coarse underlying 3D data. Anyway, take a look. Explore.

Realsee -

Matterport -

Also included is a gaussian splat of the exterior property. This is an emerging tech that holds great promise for the creation of 3D models. People much smarter than me are working to make splats function within programs such as 3DVista which, once working, further expands possibilities for 3D in tours.

Gaussian of Hilltip -
Splat of Hilltop
Post 1 IP   flag post
Bochum, Germany
framedivision private msg quote post Address this user
Wow, great work - thanks a lot for sharing this very interesting comparison, Kevin! Although I have not taken a very close look into all areas of the scenes I am really impressed by Realsee's approach for the outer dollhouse view: Very clean and appealing, especially in the far / mid distances.

And I love the splat, fantastic :-)

Thanks again,
Post 2 IP   flag post
Realwalk3D private msg quote post Address this user
Great comparison, I don't know if I would have the patience to take such a large object with both cameras.

Gaussian Hilltip
How is it done? First time I see this!
Post 3 IP   flag post
GarySnyder private msg quote post Address this user
@Home3D outstanding job in a details comparison of both cameras.

Which camera did you find easers to shoot the job and gave you less issues.

In addition how was the backend processing? How long did it take to process the job?

Which took longer to shoot the job as well as provided less hassles on your part.

I can see that MP had to split the job into 7 floors. There is an option with MP to keep the floors together unless you specifically tell MP to start another floor although it doesn't always seem to work. But of course MP needs to see the nearest scan point for this to work.

3DVista does a great job of what they refer to as a 3D Model is their equivalent to Splatting
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bethereeu private msg quote post Address this user
Picture quality is not aaceptable, dollhouse also has less details, check the ladder from this screenshot.

Post 5 IP   flag post
ron0987 private msg quote post Address this user
@Home3D great job looks nice. Could you start new link with work flow on the Gaussian model that also is amazing.

Was this done prior to the Realsee HDR update?
Post 6 IP   flag post
Los Angeles
Home3D private msg quote post Address this user
@GarySnyder - Honestly, the Galois and Pro 3 were very comparable. The Pro 3 “spins” slightly faster but considering that each complete node is: “Spin, download, move tripod, and sometimes hide yourself” the time difference is minor. Often I found the Galois completed its Wifi data transfer faster, so little difference.

Galois is a bit easier to hide yourself as the Lidar aims just to one side. Process on iPad is also virtually identical. So there’s almost no learning curve to Galois if you know Matterport.

Processing was fast on both platforms. First render of the Realsee model displayed an issue with floors, but I requested assistance and Realsee jumped on it quickly. Realsee’s commitment to growing and improving their platform is impressive.

I believe I selected Matterport’s system to determine floors on this one, an option I will never use again going forward. I’d rather pay careful attention to my own choices as I’ve found MP’s automatic delineation to be confusing and unattractive. Maybe there are special cases where it would be good, but if it’s been added so we don’t have to assign floors, I’d say Don’t use it.

Gaussian splatting is intriguing and amazing. I have limited understanding about how it works, but definitely is something to watch. I’ll write separately about this next week.

@ron0987 - Yes, this Realsee scan was done with only bracket-3 as their promised bracket-5 upgrade hasn’t occurred yet. It’s expected in a couple weeks. is a small company, but there are three of us expert with the Pro 3 and Galois, so Gray and I did this demonstration scan together. Gray began with Pro 3 in the upper room facing the ocean where we first marked spin positions on the floor with tape, for the closest comparison. When Gray finished this room with the Pro 3 and moved around a corner, I began with the Galois spinning on the same spots. We did the rest of the home simultaneously, just staying out of each other’s sight as much as possible, but not marking positions, just using our instinct and experience.

Though there is a slight difference in spin speed, I find it insignificant. Also, let’s look back. I began using Pro 1 in 2016. Back then each spin took double the time. Pro 2 came out and did a spin way faster. But then, later, a firmware update to the Pro 1 made it spin as fast as the Pro 2. Hmm, was MP withholding the faster spin update to increase sales of the Pro 2? Would they actually do that? You decide. My point is, spin speed is not just hardware, but software. The time today could be different tomorrow.

Oddly, Galois has a USB-A port, a USB-C port (used for charging) and a micro-SD card slot. I asked what the extra ports do and was told, currently nothing. Realsee is just planning for the future. I find that not only interesting, but reflective of a mindset toward evolution. Maybe insurance for innovation over obsolescence?
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GarySnyder private msg quote post Address this user
@Home3D Thank you for updating all those who are interested in the comparison of the two cameras. Please keep up the excellent work.
Post 8 IP   flag post
Aerial_Perspective private msg quote post Address this user
@Realwalk3D For Gaussian Splatting model, check Luma fusion or better
Post 9 IP   flag post
Aerial_Perspective private msg quote post Address this user
@Home3D Thanks for this comparison. I am surprised how different the 3D model are in between these cameras,

One thing I really want to know is: how did you add 3D scaffolding into the 3D model of Realsee?
Post 10 IP   flag post
Los Angeles
Home3D private msg quote post Address this user
@Aerial_Perspective - I didn’t add the scaffolding. It was there around several sides of the house. But it’s interesting to see how each camera renders it. Scaffolding is very thin objects and the mesh of both these systems is coarse, so scaffolding is pretty choppy in both.

Both these cameras now can be set to capture denser point clouds. I expect the higher detail only shows with obj or E57 export. Someone with skills in that area may know more.
Post 11 IP   flag post
Aerial_Perspective private msg quote post Address this user
@Home3D Thanks for your reply. I asked this because to me the details of the scaffolding (on the Realsee model) is far too clean to be photogrammetry out of camera. If you didn't add it, my assumption is that one of Realsee team did.

On the screenshots attached you can see that the scaffolding appears in 2D. Maybe the Galois did not manage to render a 3D model of the scaffolding and therefore appears as a part of the wall, which may be why Realsee team added that 3D object to the model.

I recently scanned a pretty big house with scaffolding going all around. The 3D model with scaffolding really make it messy, so I removed it all to just show the house.[REALSEE]

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