Figure 1From: Efficient shift-variant image restoration using deformable filtering (Part II): PSF field estimationGeneral strategy applied for estimating the PSF field. The first step is to estimate the local PSF on a grid of locations, using overlapping blocks. From these local estimates, the PSF field can be estimated, assuming it varies smoothly across the image. The method is presented here in its most general way (grouping local features).Back to article page