IMAGE CODING APPARATUS AND METHOD AND IMAGE DECODING APPARATUS AND METHOD Russian patent published in 2019 - IPC H04N19/39 H04N19/70 H04N19/46 

FIELD: data processing.

SUBSTANCE: invention relates to encoding and decoding of images. In the method, an image encoding apparatus for a multi-layered video encoding scheme, in which an image is hierarchically divided into a plurality of layers containing a base layer and enhanced layers in which the spatial resolution or temporal resolution changes from one level to another, contains a scheme for: setting a certain number of candidates for information about the spatial or temporal resolution for an image; setting information indicating whether there is an index indicating the correspondence relationship between the spatial or temporal resolution information and the enhanced level, in the case that the number of candidates for information for the specified enhanced level is greater than 1; and encoding the image and generating a bitstream containing a specified number of candidates for information on the spatial or temporal resolution and information related to the established correspondence ratio.

EFFECT: providing an improved default display between the enhanced level and resolution information.

3 cl, 48 dwg