Patent ID: 9491467
Filing Date: 2016-11-08
CPC Classification: H04N

Claim Text:
1. A video decoding apparatus using an intra prediction, the apparatus comprising: a decoder, implemented by one or more processors and, configured to obtain mode information of a current block and residual sub-blocks corresponding to a plurality of sub-blocks included in the current block, from a bitstream; an intra predictor, implemented by one or more processors and, configured to an inverse quantization and transform unit, implemented by one or more processors and, configured to inversely quantize and then inversely transform each of the residual subblocks; and an adder, implemented by one or more processors and, configured to sequentially reconstruct the plurality of sub-blocks by adding each of the predicted sub-blocks to an inversely quantized and inversely transformed residual sub-block corresponding thereto, wherein one or more pixels of a pre-reconstructed sub-block within the current block are used as part of the neighboring pixels for predicting at least one non-reconstructed sub-blocks adjacent to the pre-reconstructed sub-block.