发明名称 |
METHOD AND APPARATUS FOR BUILDING AN ESTIMATE OF AN ORIGINAL IMAGE FROM A LOW-QUALITY VERSION OF THE ORIGINAL IMAGE AND AN EPITOME |
摘要 |
The present invention concerns a method and apparatus for building an estimate (Ŷ) of an original image (Y) from a low-quality version (Yl) of the original image and an epitome (Eh) calculated from an image. The method is characterized in that it comprises: —obtaining (11) a dictionary comprising at least one pair of patches, each pair of patches comprising a patch of the epitome, called a first patch, and a patch of the low-quality version of the original image, called a second patch, a pair of patches being extracted for each patch of the epitome by inplace matching patches from the epitome and those from the low-quality image, —for each patch of the low-quality version of the original image, selecting (12) at least one pair of patches within the dictionary of pairs of patches, each pair of patches being selected according to a criterion involving the patch of the low-quality version of the original image and the second patch of said selected pair of patches, —obtaining (13) a mapping function from said at least one selected pair of patches, and —projecting (14) the patch of the low-quality version of the original image into a fmal patch ({tilde over (X)}h) using the mapping function. |
申请公布号 |
US2016277745(A1) |
申请公布日期 |
2016.09.22 |
申请号 |
US201415034932 |
申请日期 |
2014.10.30 |
申请人 |
THOMSON LICENSING |
发明人 |
GUILLEMOT Christine;ALAIN Martin;THOREAU Dominique;GUILLOTEL Philippe |
分类号 |
H04N19/147;H04N19/44;H04N19/593;H04N19/176 |
主分类号 |
H04N19/147 |
代理机构 |
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代理人 |
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主权项 |
1. Method for building an estimate (Ŷ) of an original image (Y) from a low-quality version (Yl) of the original image and an epitome (Eh) calculated from an image, comprising:
obtaining a dictionary comprising at least one pair of patches, each pair of patches comprising a patch of the epitome, called a first patch, and a patch of the low-quality version of the original image, called a second patch, a pair of patches being extracted for each patch of the epitome by in-place matching patches from the epitome and those from the low-quality image, for each patch of the low-quality version of the original image, selecting at least one pair of patches within the dictionary of pairs of patches, each pair of patches being selected according to a criterion involving the patch of the low-quality version of the original image and the second patch of said selected pair of patches, obtaining a mapping function from said at least one selected pair of patches, and projecting the patch of the low-quality version of the original image into a final patch ({tilde over (X)}h) using the mapping function. |
地址 |
ISSY LES MOULINEAUX FR |