Single-shot mode vs regular mode

Yes who knows … indeed :wink:

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Back in the old days, when laser scanning ruled, this was pretty much the only eay you scanned, turntable or stationary. The advatage is you don’t have to worry about tracking and misaligned frames, excess noise from overscanning or the ‘join up’ point from a 360 scan.
The downside of course is that there’s more post-processing and editing, as you need to align and merge each scan in turn (unless the Miraco does some tracking in between shots, which would be nice!).
Short answer - if the object youre scanning has potential tracking problems, there are interfering external factors (like people in a public place walking between you and the subject), or you possibly just want maximum accuracy/minimum noise, I’d go with single shot.
Hell, I used to scan people with single shot back in the day… don’t recommend it tho!

Back in the old days, when laser scanning ruled, this was pretty much the only eay you scanned, turntable or stationary.

About 15 years ago, I was toying with the now defunct David Laserscanner, a red line laser and a kitchen timer to sweep the laser on the subject. You would then fuse several scans. The end result was interesting but this was very, very, very time-consuming and you had to work in the dark. I wonder wether I still have some of these files somewhere. :smile:

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I still have (and actually use occasionally!) my 20yo Minolta Vivid. I must have literally done (and aligned and merged) tens of thousands of scans on it. SLOW but the results still hold up today!


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I don’t recommend either, I am scanning for over 25 years … scanning people with a single shot frame is almost impossible , as no one can be that still to finish a job , imagine you use photogrammetry to scan a person , exactly the same thing . Possible yes but the results are a gamble …you never know what you get at the end .

Single frame xxxxx are great for difficult situations , or to capture relief or very fine details , however it requires complete still environment to get the best of it .

You can shot a selfie with single frame but it will looks only ok from one angle since it is still 2D … sort of a plane with a displacement map …

MIRACO do have recognition alignment between the single frame shots that allows the frames to be aligned automatic between the shots in live mode , for example if the overlap is too great the single frame turns red , what means you need to go back couple of degrees and shot again, positive turns green, negative red, there is no error while scanning using single frame shot feature as this process is automatic .

I wonder wether I still have some of these files somewhere. :smile:

Looks like I don’t have the files anymore, but I do have this nice picture! Always keep your old screenshots. :grin:

The same seashell you can see in the bottom left was included in my MINI showcase at 1:27, about 15 years later. The old model holds up quite nicely, but there is more detail on the MINI scan, and some “spikes” are fused on the old scan, or lack a few bumps & dents.
I should also add that the MINI showcase was done before Revo Scan 5 was launched, so I could probably get even more detail now.

And to go back to the topic: I also still own the trilobite fossil, I think I could include it in my MIRACO showcase!

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You can always shoot the person with a large tranquilizer dart for them to be very still

only issues with this is metalic darts are harder to scan and you will need to remove the dart in post proxessing anyways.

as for the pose just use mixamo to ai rig some bones and pose it yourself ™

:stuck_out_tongue:

:warning: No models where darted in the making of this mixamoed scan :warning:

Whilst I appreciate your input, I’ve been scanning for the Film & TV industry since 1997, and have scanned numerous people using single shot… because there wasnt any choice back then unless you wanted to invest in $250K of kit - and hiring/transporting such a system often wasnt possible. So you had to improvise with what you had.
I’ve scanned people with single shot on the Narnia films, WWZ, Harry Potter, Wanted… a load.
Here’s some bodies and heads for WWZ - all of them done with single shot, built with 16-24 scans using a Minolta Vivid.
Yeah I def wouldn’t revommend it when you have constant frames (I stopped when I got an Artec), and def not something an amateur should attempt.
But it’s def not impossible.


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That sounds very cool! Does that mean the single shots are ALWAYS auto-aligned?

yes they are , if you misaligned one frame it will turn red and do not align automatic , this means the overlapping was too small to align it proper , more work but also more precise .

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I am amazed to @PUTV while reading the thread. About scanning humans to use in films. Can we see some other pictures and if possible, include the time frame where we can see these scanned humans in the actual movie. I think you are popular coz you are handling hollywood movies.

Hi @Amber over 27 years of experiences with 3D …
Only very expensive scanners are used in movies to scan people and in most case Photogrammetry based that needs a lot of work after with cleaning and preparing for actual reverse engineering ( retopology) that can be used in animation so not the scans itself , you can check the process in making from the last Avatar movie .They have it in YouTube.

Yes, i know little thing about retopo, to use the the 3d file with lower memory usage but still have the same quality. But im eager to see the works from you. I think i inspired to your job😁. Or maybe you have some videos in your YT channel. I prefer to watch your video.

If only very expensive scanners used in movie-making, in what part or reason the revo sacnners are not fit to do the job?

Sorry but my private work and Revopoint are 2 separate branches that I don’t and can’t mix together . I am as always under NDA and under contracts so not my place here to share , but as always can share some of my knowledge and it is not always everything either, my own trade secrets . :wink:

Because the time is money , but I can see Revopoint scanners being used by independent movie filmmakers to some degrees, however it is not there yet to fully replacing expensive scanners , let’s say it is on half way already as it can be used in many professional applications already .

Anyway Revopoint scanners are consumer based scanners , created for consumers on low budged . Revopoint can create professional scanners if they only want , but because of the price it would never reach consumer market .

However, I do use Revopoint scanners to some degree as much as I need it … and it do speed up my work dramatically. Especially if I have to work on an independent projects .

There is many other reason why it can’t fit on a milion dollars budged , because other scanners are still better and provide not only volume mesh data but also proper graphic data like textures in highest quality format , and I am not talking here about simple color textures … it is impossible for Revopoint scanners to even produce graphic data on that level . It uses simple mobile camera sensors that are not different from your phone .

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Hey Amber - you can check out my Behance page or my old company page (I’m kinda semi-retired now!) for a bunch of scans used in movies.
If you want to see actual shots and where scanned models have been used as the basis for the CG elements, I’ve included a lot of clips in my WWZ feature.
I still do the odd job when called upon by industry colleagues, and I wouldn’t discount using a Revopoint scanner for it, but it will almost always be for SFX, Art department or Wardrobe these days, not for VFX.
10-15 years ago we went about VFX a very different way - you’d scan someone at the highest resolution you could, and then apply a photographic texture made up of a number of photographs taken in a photo “booth” on set. Back then I was often using an Artec system, so a Revo could have easily competed on the data front.
Nowadays pretty much 99% of VFX scans are done via photogrammetry, to capture geometry and a very high resolution texture at the same time.
But even today, not everyone needs a texture… mostly because not everything you scan has one! I’ve scanned models for VFX in the past year that will be textured more with materials than actual photographic textures. Things like boat models, fantastical creatures and the like that might just be simple grey clay models.
In SFX/modelmaking we might also scan a human not using photogrammetry as again, the texture isn’t needed. An example might be for a prosthetic, or a mask fitting.
For these I’d actually consider using a Revopoint scanner - there’s absolutely nothing wrong with the data, and the fact its a cheaper scanner is immaterial to the client (who usually doesn’t have much knowledge about such things) - they’re concerned with results! The problem at the moment at least is the software, or more precisely the lack of ability to pull apart frames (cut and paste frames from one scan into a new one) and realign frames in post.
On a film or TV job, you usually only get one shot at a subject. Therefore you grab as much data as possible and then sort it all out back at base. This means that frame-level editing is essential. Now Revo Scan 5 is definitely getting better at this - you now have the ability to edit and delete frames. You could even at a pinch divide a scan up into a number of different scans to sort out slippage during a scan… but it’s a long-winded process. It needs to be accessible and quick. As soon as it is, there’s absolutely no reason why I wouldn’t take a Revopoint scanner on a film or TV job.

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I am thinking of extending my Revoscan Frame Player app to include a video editing like solution for splitting frames into new scans ans make then available inside the scan project

I already use it daily on my human form scans to scrub trough the video and mark blinks and out of focus fames for deletion that i then just remove in a non destructive way with a helper script

It would be great to have a set of extra eyes on the project and some ideas on what to introduce to the app

My long term idea is to make it into a project manager app that can split modify and manage folder names and scans inside a revopoint projext

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This is great. Almost daily I’m manually breaking scans up. Initially I usually break them down into pieces by the first number in the frames (which I assume are pauses and tracking losses/restarts). That is good enough most of the time. It is less common that I have to go in and separate sections within each grouping, but it does happen. I do large scans with the Range mostly.

I would start with the option to fully separate selected frames into a new project. A companion app that would shuffle those frames around (maybe a tree with hide/unhide) in the background might work as well. I move frames in/out of the cache folder manually and then just apply Fusion again (not necessary to reload the scan unless you want to refresh the Raw display).

Definitely - until it’s implemented into Revo Scan, the ability to break scans into separate frame models and paste them as new scans would be invaluable in putting together body scan data (or any data really, where you get some frame slippage).
Also, does your app allow the export of the raw frame data in some way (i.e. a pre-fusion point model?)
Thanks for your hard work coding!

@Guyblin

Short answer… No, not in any usefull way, only uncalibrated raw points

In some of my research i was able to read the depth map files and reconstruct them as 3D pointclouds, I have a demo that loads the pointcloud and colors the points from the RGB data, but is more less useless other than visualization because Revopoint camera intrinsics seem to be encrypted on scan binary files that take care of the calibration pre-position and visibility on RS


Latest version is in the github

Devlog is in this post

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