The technical term for this is anamorphic [never heard of it until today!]... you have to view the art from a unique perspective in order to see the image as it would look without distortion. There are other artists and techniques, and one other way of accomplishing this is to require that the image be viewed through a mirror, as in:
http://upload.wikimedia.org/wikipedi...th_column0.jpg
I would love to have the money to hire Beever to paint a basketball court in a way that complied with the rules, then see what rule changes resulted!
