Patent ID: 9584821
Date: 2017-02-28
CPC Classifications: G06T,H04N

Claim:
1. A method of decoding an image, the method comprising: obtaining quantized transformation coefficients of at least one transformation unit in a coding unit of the image; performing inverse-quantization and inverse-transformation on the quantized transformation coefficients of the at least one transformation unit to obtain residuals; performing inter prediction for at least one prediction unit in the coding unit to generate a predictor; and restoring the image by using the residuals and the predictor, wherein, when a prediction mode is an inter prediction mode, not an intra prediction mode, a size of the at least one transformation unit in the coding unit is determined independently from a size of the at least one prediction unit in the coding unit, wherein the image is split into a plurality of maximum coding units, according to information about a maximum size of the coding unit, and wherein a maximum coding unit among the plurality of maximum coding units is hierarchically split into one or more coding units including at least one of the coding unit of a current depth and a coding unit of a lower depth, and when split information indicates a split for the current death, the coding unit of the current depth is split into four rectangular coding units of the lower depth, independently from neighboring coding units.