METHOD FOR ENCODING VIDEO OF MULTI-LAYER STRUCTURE SUPPORTING SCALABILITY AND METHOD FOR DECODING SAME AND APPARATUS THEREFOR

摘要

The present invention relates to a method for encoding and decoding a video in a multi-layer structure supporting scalability and an apparatus therefor, and a method for decoding a video according to the present invention includes the steps of: deriving a prediction sample for the present block; restoring the present picture based on the prediction sample; applying the de-blocking filtering for the block edges in the restored present picture; and applying an offset for a sample of the restored picture.

主权项

1. A video decoding method in a multi-layer structure supporting scalability, comprising:
deriving a prediction sample for the current block; reconstructing a current picture by adding the prediction sample and a residual sample; applying a deblocking filter to a block edge in the reconstructed current picture; and after the applying of the deblocking filter is complete, applying a band offset or an edge offset to a sample of the current picture, when inter-layer prediction is not performed on a current block, the prediction sample for the current block is derived by using information of a spatial neighboring block and temporal neighboring block of the same layer as the current block; when the inter-layer prediction can be performed on the current block, the prediction sample for the current block is derived by using the spatial neighboring block of the same layer as the current block and information of a corresponding block in a layer different from a layer of the current block;