Patent ID: 9167249
Filing Date: 2015-10-20
Classification: H04N

Abstract:
1. A method of decoding a bitstream including a coded representation of a current block to be partitioned into a plurality of partitions with a decoding apparatus, the method comprising: obtaining, with the decoding apparatus from the bitstream, an intra prediction mode of the current block; parsing, with the decoding apparatus from the bitstream, first coded block pattern information of the current block, the first coded block pattern information indicating whether the current block includes transform coefficient information; when the first coded block pattern information corresponds to a value of 1, parsing, with the decoding apparatus from the bitstream, second coded block pattern information of a first partition of the plurality of partitions, the second coded block pattern information indicating whether the first partition includes transform coefficient information; when the second coded block pattern information corresponds to the value of 1, parsing, with the decoding apparatus from the bitstream, transform coefficient information of the first partition; obtaining, with the decoding apparatus, a prediction value of the first partition using the obtained intra prediction mode of the current block and reconstructed sample values adjacent to the first partition; obtaining, with the decoding apparatus, residual data of the first partition by performing an inverse-transform operation based on the parsed transform coefficient information of the first partition; and reconstructing, with the decoding apparatus, the first partition using the obtained prediction value and residual data of the first partition.