<p>That's not Structured light, it is a camera. The camera makes a series of photos - one with each flash. Then, the photos are stitched to create a 3D model using a code that is similar to one I was shown in an informatics class in my uni once:</p>
<ul>
<li>the software identifies structures that are identical.</li>
<li>By tracking the difference between the pictures, distances away from the camera between the different photos are estimated. As a result, several passes in different angles give us a complete 3D scan.</li>
<li>Motion of the scanner probably is included in the metadata, allowing to calculate the angles more precisely.</li>
</ul>
<p>So, it's <strong><a href="https://en.wikipedia.org/wiki/Photogrammetry" rel="nofollow noreferrer">Photogrammetry</a></strong>.</p>

CC BY-SA 4.0
2021-03-16T07:22:02.183Z
I didn't expect Photogrammetry!
Megidd
CC BY-SA 4.0
2021-03-16T10:01:47.827Z
High quality Photogrammetry requires lots of images. So, the camera should be taking a **large** series of photos, right?
Megidd
CC BY-SA 4.0
2021-03-16T10:03:21.387Z
Photo and video it seems. Each flash is a reference picture for the video.
Trish
CC BY-SA 4.0
2021-03-16T10:04:45.143Z
Just as a possibility, could the device be combining Photogrammetry with some other approaches to increase quality?
Megidd
CC BY-SA 4.0
2021-03-15T20:38:29.347Z
2021-03-15T20:38:29.347Z
Trish
<p>I'm curious what is the technology category for this 3D scanner device:</p>
<p><div class="youtube-embed"><div>
                <iframe width="640px" height="395px" src="https://www.youtube.com/embed/gSPlAW44bXQ?start=0"></iframe>
            </div></div></p>
<p>Does the device fit into any technology category <a href="https://en.wikipedia.org/wiki/3D_scanning#Technology" rel="nofollow noreferrer">listed by Wikipedia</a>?</p>
<p>Could it be <a href="https://en.wikipedia.org/wiki/Structured-light_3D_scanner" rel="nofollow noreferrer">structured light</a> approach?</p>

<scanning>
Identify 3D scan technolgoy
Megidd
# Identify 3D scan technolgoy

(Asked by: username_0 on 2021-03-14)

I'm curious what is the technology category for this 3D scanner device:

Does the device fit into any technology category [listed by Wikipedia](https://en.wikipedia.org/wiki/3D_scanning#Technology)?

Could it be [structured light](https://en.wikipedia.org/wiki/Structured-light_3D_scanner) approach?

**Tags:** scanning


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## 1 answers

### Answer by username_1 on 2021-03-15. Score: 1

That's not Structured light, it is a camera. The camera makes a series of photos - one with each flash. Then, the photos are stitched to create a 3D model using a code that is similar to one I was shown in an informatics class in my uni once:

* the software identifies structures that are identical.
* By tracking the difference between the pictures, distances away from the camera between the different photos are estimated. As a result, several passes in different angles give us a complete 3D scan.
* Motion of the scanner probably is included in the metadata, allowing to calculate the angles more precisely.

So, it's **[Photogrammetry](https://en.wikipedia.org/wiki/Photogrammetry)**.

> **Comments:**
> **username_0**: I didn't expect Photogrammetry!  
> **username_0**: High quality Photogrammetry requires lots of images. So, the camera should be taking a **large** series of photos, right?  
> **username_1**: Photo and video it seems. Each flash is a reference picture for the video.  
> **username_0**: Just as a possibility, could the device be combining Photogrammetry with some other approaches to increase quality?  

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