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#Actualalvaro

Posted 05 November 2012 - 08:29 PM

I am not sure there is a good answer. You can decompose the projection as a homography followed by removing one coordinate. [x, y, z, z/d] is basically what you get after doing only the homography. Unfortunately, a diagram of what the homography does (similar to the one on the Wikipedia page) requires 4 dimensions, so perhaps it's not very good for building intuition.

Hmmm... That wasn't quite right, so please ignore it.

#1alvaro

Posted 05 November 2012 - 01:16 PM

I am not sure there is a good answer. You can decompose the projection as a homography followed by removing one coordinate. [x, y, z, z/d] is basically what you get after doing only the homography. Unfortunately, a diagram of what the homography does (similar to the one on the Wikipedia page) requires 4 dimensions, so perhaps it's not very good for building intuition.

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