Augmented Reality scenario: I have a piece of paper on the table and a camera pointed at it, the piece of paper appear to be slanted with two pair of edges going towards two vanishing points.
Say I draw a dot on that paper, how would I calculate its coordinate on the paper-plane, just by knowing the on-screen coords of the four vertices of the paper, as well as the on-screen coords of the dot?
Any point in the right direction will be greatly appreciated :D I don't even know what this process is called.
Thanks! ~Xrave