Method and apparatus for constructing estimates of original images from low-quality versions of original images and epitomy

摘要

The present invention relates to a method and apparatus for constructing an estimate of an original image from a low quality version of the original image and epitome calculated from the image. The method comprises a step (11) of obtaining a dictionary with at least one patch pair, each patch pair comprising a patch of epitomy called a first patch and a patch of low quality version of the original image called a second patch For each patch of the epitome, a patch pair is retrieved by in-place matching of a patch from the epitome and from a low quality image; for each patch of the low quality version of the original image, a patch pair Selecting a patch pair of at least one of the dictionaries of the original image and each of the patch pairs is selected according to criteria relating to the low quality version of the patch of the original image and the second patch of the selected patch pair (13) of obtaining a mapping function from at least one selected patch pair; and projecting a low-quality version of the patch of the original image onto the final patch using a mapping function 14).BACKGROUND OF THE INVENTION