The Catmull-Smith two-pass resampling algorithm [Catmull, Smith 80] simplifies the non-trivial reconstruction of a transformed 2-D image by decomposing the transformation into two 1-D passes. We present a theoretically motivated modification to this algorithm that provides improved image quality. For the case of projective transformations, this improvement results in a final algorithm that is more robust and accurate than the original while even affecting correctness in some cases.

@article{Kallay:2003:ITT,
   author = "Michael Kallay and Jason Lawrence",
   title = "Improving the Two-Pass Resampling Algorithm",
   journal = "Journal of Graphics Tools",
   year = "2003",
   month = jan,
   volume = "8",
   number = "2"
}