3d scanning

A selection of videos and images demonstrating some of RMIT students’  foray into the world of 3d scanning.

Structured light based 3d-scanning by Philip Pille, Elliot Henkel and Daniel Kerris

Structured light based 3d-scanning by Siobhan Cribbin

Apologies for the slightly nauseating video, but I think it gets the point across fairly well!  Its a wonderful little app which you could do some amazing things with if you invested some time (note to the students in my class, I’ll be expecting some good results from all of you!)

The app doesn’t seem to like reflective, translucent and transparent surfaces very much.  I suspect this has alot to do with the way that light refracts/ reflects off these surfaces which makes it hard for the program to ‘place’ or ‘stitch’ the images together.

I think you could greatly increase the accuracy of the model by creating a more controlled environment.  These are a couple of things I may try out in the next week:

  • Rotating bed for the model (turntable).
  • Alternatively, a rotating arm for the camera if the turntable method is not applicable to this capture process.
  • Fixed and adjustable camera positioning to allow for more consistent photography.
  • Controlled light environment.

Here’s another successful scan taken by Todd Dawson.  The app seems to function better at stitching elements together when the environment has a simple ‘pattern’ to place the object in.  The slats of the table this was placed on seem to do the job quite well.

So I’ve stumbled onto this awesome little app from Autodesk where you can create 3d scans from a series of sequential images taken of an object.  I’ve been using it for the last day and I’m starting to get some good models out of it.  Here’s a quick video which pretty much sums up everything about this program.

The interface is extremely smooth and easy to get a hang of.  I feel that the Autodesk has really got it right with these ‘entry-level’ progams (there are 2 more to check out, 123D make and model or something like that).  They have really considered the user interface and designed the program to make the process seem logical and completely non-confrontational; there aren’t a million icons plastered all over the screen with ambiguous symbols for individual operations.

Once I get some decent model results, I’d like to follow through and see how accurate the scans are and how useful the information is for 3d modelling. So far so good…..

Here is their web page for the 123D apps.  If anyone plays around with them and gets some good results then I’d love to hear about your experience.

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