METHOD OF USING EDGE SHIFT Russian patent published in 2019 - IPC H04N19/86 H04N19/117 

FIELD: calculating; counting.

SUBSTANCE: invention relates to the computer equipment. Method of post-processing of recovered image includes: determining, that the unlocking filtration process is performed on the edge; when it is determined that the deblocking filtering process is performed, using the unlocking filtration process to the shear; and application of edge shift, if type of adaptive to sample displacement (SAO) indicates edge offset, wherein the deblocking filtering process includes the following sub-steps: determining the boundary strength for each edge of 4 samples, which is the prediction edge or conversion edge and lies on grid of 8 x 8 samples; determining whether unlocking filtering is applied on edge of 4 samples or not, using boundary strength and the boundary quantisation parameter; and edge filtering of 4 samples, if unblocking filtering is applied on 4-sample edge, wherein the step of applying the edge offset includes the following sub-steps: generation of edge index of current sample and generation of edge offset corresponding to edge index of current sample.

EFFECT: technical result consists in reduction of difference between initial samples and reconstructed samples.

8 cl, 8 dwg