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I too casually obsessed with algorithms for extracting geometry data from photographs. Here's a Javascript experiment/demo from a few years ago. http://francoi
by endergen 13y ago
I too casually obsessed with algorithms for extracting geometry data from photographs. Here's a Javascript experiment/demo from a few years ago.
http://francoislaberge.com/labs/normal_mapping/me/ http://francoislaberge.com/labs/normal_mapping/me/
I'd always meant to make a writeup about it. I thought your article was great. Email me sometime if you continue to geek out in this space.
- alexanderh 13y agoVery cool. Any info on how you created the normal maps for the pictures of faces? I can see how you'd do it for a 3d object you can easily render out various ways, but I'm a bit puzzled by the photos. Edit: Ok so I found this: http://www.zarria.net/nrmphoto/nrmphoto.html http://www.zarria.net/nrmphoto/nrmphoto.html Seems easy enough, except for the 'standing still' long enough to capture a live model lit from multiple angles in the same pose. Is that the key? Was it all that difficult, and did you use any particular techniques?
- endergen 13y agoThat article essentially captures it, I just wanted to write up a more intuitive explanation.