Patent ID: 9167258
Filing Date: 2015-10-20
Classification: H04N

Abstract:
1. A scalable video coding method based on a structure of multiple layers, comprising: deriving a coded block pattern (CBP) value of a luma component for a 16.times.16 mode of an encoding target picture; determining first candidate modes for the encoding target picture according to the derived CBP value; determining a final prediction mode for the encoding target picture based on the determined first candidate modes; and encoding the encoding target picture based on the determined final prediction mode, wherein the encoding target picture is a B picture in an enhancement layer, wherein in the determining of the first candidate modes, the first candidate modes are determined as a first class in the case in which the derived CBP value is 0, and the first candidate modes are determined as a second class in the case in which the derived CBP value is not 0, the first class including a SKIP mode, a 16.times.8 mode, and a 8.times.16 mode, and the second class including a SKIP mode, a 16.times.8 mode, and a 8.times.16 mode, and a SUB8.times.8 mode, wherein the determining of the final prediction mode includes: wherein the structure of the multiple layers is a spatial layer structure or a picture quality layer structure, and in the determining of the reference picture, the reference picture is determined based on a difference value between a quantization parameter value of a base layer and a quantization parameter value of the enhancement layer.