http://www.youtube.com/watch?v=lkuGrCB85H8
Photosynth is a program that almost completely is over my head as far as understanding is concerned. However, this link will help better explain how it works.
http://en.wikipedia.org/wiki/Microsoft_Live_Labs_Photosynth
Essentially, the relevance and similarities I found between this program and MC Escher's paintings is the ability to make things that are actually 1 dimensional and make them into 3 dimensional. For instance, MC Escher took a 1 dimensional canvas and turned it into this 3 dimensional drawing using shading.
The video I linked you all to explains how Photosynth does the same thing with 1 dimensional photographs by collectively turning them all into one 3 dimensional image. I think it's really neat.