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Method for "extrapolating" a skull from a 3d model of a head?

Forensics teams can "estimate"/"extrapolate" a face from a skull, so what my question is would it be possible to do this in reverse?

I have been playing around with the 123D apps and i was already planning on making a 3D model of my head with 123D Catch for both the purposes of having a nice 3D model of my head and also so that i might be able to create a "form" , probably with 123D Make , that could be used to create masks that actually "fit" my face, so i was thinking, with the 3D model of my head could i "extract" even a basic model of my skull from it? And if so , does anyone have any ideas on how i might go about doing so?



shabaki (author) 4 years ago
Thanks XD both of these answers were exactly what i was looking for.
sath024 years ago

If I were you, I could do this:

After you created your capture head in 123d Catch, then you can put your item (Your head model) in "My Corner". (Probably, you need to "Sign In" when using 123D Catch)

Open 123D App, "Sign In", to be able to access to your previously created model (your head) from 123D Catch, also located in "My Corner".

Then you can download it , edit it, Construction-->Extract Profile to get the mesh as in "carving".

Other option is using 123D Sculpt (I haven't palying with this app. yet! also from Autodesk and Free!) to "Sculpt" the skull from your head model in "My Corner".

I'm not qwuite sure if you can Export the model out to other format i.e. stl, rather than .OBJ file. But if you're "craving" your skull with 123D, you could Export the model out to various type, i.e. .STL, .OBJ, .DXF, .dwg, etc...

Hope this help!

Looking forward to see the result of your project.



Thrasym4 years ago
Um, of course, it works exactly as you've stated. In reverse. Certain points on the skull are covered by a certain thickness of skin, muscle, fat, etc. Based on age, sex, ethnicity and such. So, once you know how that works, it's simple enough to remove that amount of material from that area. Of course, it's only a reasonable likeness, it gets close usually, but not always.

Do a search for "Forensic Facial Reconstruction", there are books and classes and all kinds of info to be found, if you're interested enough to go through the time it takes to learn it all. It'll cost some money, most likely, and some time.

Another option might be x-rays. If you can get enough of them from enough angles, you could probably form a 3D image through a graphics program. That would be pretty exact. I'd expect x-rays to cost a fair bit of money though.