Patent ID: 9591327
Date: 2017-03-07
CPC Classifications: H04N

Claim:
1. An video encoding system comprising: a prediction block generating unit to generate a prediction block by performing prediction on a current block based on an intra prediction mode of the current block, wherein the prediction block comprises first prediction pixels and second prediction pixels, wherein the first prediction pixels are filtered based on a first offset when the intra prediction mode of the current block is a vertical mode and the first prediction pixels are pixels on a left vertical pixel line, and the second prediction pixels are filtered based on a second offset when the intra prediction mode of the current block is a horizontal mode and the second prediction pixels are pixels on an upper horizontal pixel line, and wherein the left vertical pixel line being one vertical pixel line positioned at a leftmost side of the current block and the upper horizontal pixel line being one horizontal pixel line positioned at an uppermost side of the current block; and a reconstructed block generating unit to generate a reconstructed block based on the prediction block and a reconstructed residual block corresponding to the current block, wherein the first offset is determined based on a difference value of pixel values of two reference pixels, and wherein coordinates of at least one of the two reference pixels are determined based on coordinates of the first prediction pixels.