Autodesk 123D Catch

[eTraxx]

This technology is incredibly cool. I hope they eventually produce a Mac version.

Ray .. they have a web app too
http://apps.123dapp.com/catch/

[Chuck Doan]

Very interesting. I don't get how the program figures accurate depth from a 2d photo.

Chuck. Here's a screen-grab showing the cameras. The program somehow knows the position of each camera .. and has identified points on each photo by each camera that matches points on adjacent photos.

"Magic happens HERE".

I can't imagine how that program would know the position of the cameras. Unless GPS is more invasive than I realized.

[eTraxx]

I can't imagine how that program would know the position of the cameras. Unless GPS is more invasive than I realized.

Chuck .. think of it like this.

You are looking at a square piece of Styrene dead on .. right in front  of you. Now ... you move until .. looking through the camera .. the square 'appears' to be 1/2 as wide as it is tall. That would mean you are at 45° from where the first photo was taken. If the square is 1/2 the apparent size then you are twice as far away.