Pravin Bhat Brian Curless Michael F. Cohen C. Lawrence Zitnick Fourier Analysis of the 2D Screened Poisson Equation for Gradient Domain Problems. 114-128 2008 ECCV (2) http://dx.doi.org/10.1007/978-3-540-88688-4_9 conf/eccv/2008-2 db/conf/eccv/eccv2008-2.html#BhatCCZ08