Patent ID: 6380936
Filing Date: 2002-04-30
Classification: G06T

Abstract:
A computer implemented process for generating a data structure that represents a projective mapping transformation matrix for a 2D image in a computer graphics system, comprising:providing a first plurality points in a barycentric coordinate system in a source space, wherein one of the points is a weighted sum of the other points, the weights on the other points summing to one, none of the first plurality of points being collinear; providing a second plurality of points in a barycentric coordinate system in a destination space corresponding to the points in the source space, wherein one point is a weighted sum of the other points, the weights on the other points summing to one, none of the second plurality of points being collinear; and using the first plurality of points and the second plurality of points to determine a projective mapping transformation matrix to map the first plurality of points to the second plurality of points.