Patent Document ID: 20150110178
Application ID: 14586471
Patent Status: 0

Claim One:
1. A method of encoding an image in a merge mode, the method comprising: determining motion information of a current prediction unit, and generating a prediction block using the motion information; generating a residual block using an original block and the prediction block, transforming the residual block to generate a transformed block, quantizing the transformed block using a quantization parameter to generated a quantized block, and scanning the quantized block to entropy-code the quantized block; and encoding the motion information using effective spatial and temporal merge candidates of the current prediction unit, wherein a motion vector of the temporal merge candidate is a motion vector of a temporal merge candidate block within a temporal merge candidate picture, and the quantization parameter is encoded using an average of two effective quantization parameter among a left quantization parameter, an upper quantization parameter and a previous quantization parameter of a current coding unit.