IMAGE ENCODING/DECODING METHOD AND DEVICE FOR DETERMINING SUB-LAYERS ON BASIS OF REQUIRED NUMBER OF SUB-LAYERS, AND BIT-STREAM TRANSMISSION METHOD

摘要

An image encoding/decoding method and device are provided. The method by which an image decoding device decodes an image, according to the present disclosure, comprises the steps of: determining at least one layer belonging to an output layer set (OLS); and determining the number of sub-layers for the at least one layer.