This paper proposes an edge-directed interpolation algorithm for natural images. The basic
idea is to first estimate local covariance coefficients from a low-resolution image and then …

In this paper we propose a new method for upsampling images which is capable of
generating sharp edges with reduced input-resolution grid-related artifacts. The method is …

This paper presents a new formulation of the regularized image up-sampling problem that
incorporates models of the image acquisition and display processes. We give a new analytic …

We introduce a class of inverse problem estimators computed by mixing adaptively a family
of linear estimators corresponding to different priors. Sparse mixing weights are calculated …

In this paper, we present a fast and high-performance algorithm for color filter array (CFA)
demosaicing. CFA demosaicing is formulated as a problem of reconstructing correlated …

We propose an isophote-oriented, orientation-adaptive interpolation method. The proposed
method employs an interpolation kernel that adapts to the local orientation of isophotes, and …

A method and apparatus for processing image data are described. In one embodiment, a
method of processing image data comprises decomposing the image data into multiple …

We present a numerical method to take into account 2D arbitrary-shaped interfaces in
classical finite-difference schemes, on a uniform Cartesian grid. This work extends the …

In this paper, we present a novel edge-directed upsampling method based on radial basis
function (RBF) interpolation. In order to remove artifacts such as blurred edges or blocking …

We describe a spatially adaptive algorithm for image interpolation. The algorithm uses a
wavelet transform to extract information about sharp variations in the low-resolution image …