摘要:
A method of coding a sequence of images is disclosed. The method of coding comprises for a current image the steps of: creating a summary of said current image; encoding said summary into a first bitstream; reconstructing an intermediate image from said summary; and encoding, into a second bitstream, the current image using said intermediate image as reference image.
摘要:
A method of coding an image epitome is disclosed. The method of coding comprises: creating the epitome of the image, the epitome comprising a texture epitome and a transform map; coding the texture epitome and the transform map; wherein texture epitome is padded, before the step of coding, such that the texture epitome is block aligned.
摘要:
A method for extracting an epitome from an image Y is described.The method comprises:searching for each block, a list of patches in the image Y with similar content;determining, for each patch of said lists, the set of blocks able to be represented by the patch;constructing, from the sets of blocks, epitome charts comprising, for each epitome chart, initializing said epitome chart with one patch and extending said epitome chart with at least one candidate region contained in a patch overlapping said epitome chart;said method being characterized in that said candidate region is selected by taking into account the blocks represented by said patch overlapping said epitome chart and by any other patch contained in said epitome chart enlarged by said selected candidate region.
摘要:
A method for extracting an epitome from an image Y is described. The method comprises: searching, for each block, a list of patches in the image Y with similar content; determining, for each patch of said lists, the set of blocks able to be represented by the patch; constructing, from the sets of blocks, epitome charts comprising, for each epitome chart, initializing said epitome chart with one patch and extending said epitome chart with at least one candidate region contained in a patch overlapping said epitome chart; said method being characterized in that said candidate region is selected by taking into account the blocks represented by said patch overlapping said epitome chart and by any other patch contained in said epitome chart enlarged by said selected candidate region.
摘要:
A method for coding a current block is disclosed. The method comprises an iterative step of decomposition into atoms of a first dictionary of a vector of data comprising at least reconstructed image data associated with pixels situated in a causal neighboring area of a current block.At each iteration, the step of decomposition into atoms comprises the following steps for: selecting a first atom in the first dictionary of atoms, applying a phase correlation between a patch associated with the first atom and a current residue vector, when the first atom is a textured atom, extracting from the patch at least the part most correlated with the residue vector, the extracted part forming a second atom, selecting from among the first atom and the second atom, the atom most correlated with the current residue vector, and updating the residue vector according to the selected atom.
摘要:
A method for coding a current block is disclosed. The method comprises an iterative step of decomposition into atoms of a first dictionary of a vector of data comprising at least reconstructed image data associated with pixels situated in a causal neighbouring area of a current block.At each iteration, the step of decomposition into atoms comprises the following steps for: selecting a first atom in the first dictionary of atoms, applying a phase correlation between a patch associated with the first atom and a current residue vector, when the first atom is a textured atom, extracting from the patch at least the part most correlated with the residue vector, the extracted part forming a second atom, selecting from among the first atom and the second atom, the atom most correlated with the current residue vector, and updating the residue vector according to the selected atom.