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Like father, like son. Comparing siblings in 3D!

Like father, like son. Comparing siblings in 3D!

As a parent, one of the most common things you are likely to hear is: “Oh my, he (or she) looks just like you!”. And that is no mystery, our children are an extension of us, they bear the same genes; the resemblance is therefore not a coincidence at all. But, besides the visual similarities, did you ever wonder how closely related are you with siblings? We tried to answer this question with this little experiment we did.

Our subjects (we will call them son 1 and son 2) are aged 26 and 30 respectively; they both share the same parents. Using a peel 2 scanner, we started by scanning their faces. The process was pretty straight forward, point and shoot, the scan was completed within seconds.

Right off the bat, it is pretty obvious there two are related as they do bear a resemblance. To take our experiment further, we aligned the two faces in peel 3d software using best fit alignment. This method tends to minimize the distance at any point between the two scans and gets them as close as possible to each other. We can then proceed to a colormap between the two subjects:

The comparison showed son 1 has a more prominent eyebrow and slightly elongated nose while having a somewhat narrower face. The rest of their faces is actually quite similar (within 2mm).

Of course, this project was done for fun, but the results are actually quite interesting as they now allow us to quantify the resemblance very accurately between two individuals. Should you be interested to hear more about this experiment, you can view a video we made about it here. We took things a little further, adding the girlfriends in the mix! Enjoy!

 

How would you look like 2000 years ago? peel 3d can show you how!

How would you look like 2000 years ago? peel 3d can show you how!

Two thousand years ago, there was no social media, no selfies, no Snapchats. And definitely no 3D scanning! The best (and only!) way to capture a person’s portrait was to carve it in stone. These stone carvings inevitably lasted centuries, offering us a window to the past and how people looked like in ancient Greece or Egypt.


Who do we look like? Do we have an ancient doppelganger? This is precisely what the Musée de la Civilisation tried to answer coming up with the very interesting exhibit, “My 2000-year-old double.” The museum recruited around thirty people, using a contest, with specific facial characteristics. The faces of the selected lucky few were then cross-referenced with a large sculpture database provided by the Musée d'art et d'histoire de Genève  and the Fondation Gandur pour l’Art. The team used a face-matching algorithm to find the closest match between the subjects and statues.
How does this connect to the peel 3d affordable scanner you might ask? It turns out the Musée de la Civilisation also bought its own scanner to scan the faces of all candidates. The plan was to immortalize these faces—not in stone, but with modern techniques. Naturally, that meant 3D scanning and 3D printing! The museum needed something quick and easy to use; the team members of the project had many faces to scan and were planning to use the scanner on their own.

face scan with peel 3d handheld 3d scanner
peel 3d proved to be the perfect 3D scanning solution for their needs. Providing a great level of detail, it could capture a complete human face in seconds.
The software included with the 3D scanner also provided very useful tools allowing to clean, align, improve and fill areas where data was missing. The results were very impressive:
Man face scan - peel 3d scanner - handheld 3d scanner
The museum is currently working on scanning other participants from around the world. The scans will then be prepared for 3D printing. The exhibit is scheduled to open at the end of October 2018 in Québec City. Stay tuned for more information!