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2D image reconstruction using natural neighbour interpolation
In this paper, we explore image reconstruction from irregularly spaced samples using
natural neighbour interpolation. We sample the image irregularly using techniques
based on the Laplacian or the derivative in the direction of the gradient. Local
coordinates based on the Voronoi diagram are used in natural neighbour interpolation to quantify the "neighbourliness" of data sites. Then we use natural neighbour
interpolation in order to reconstruct the image. The main result is that the image
quality is always very good in the case of the sampling techniques based on the
Laplacian