Patent ID: 7924917
Filing Date: 2011-04-12
Classification: H04N

Abstract:
1. A method of decoding a video signal by a video decoding apparatus, comprising: first obtaining, with the video decoding apparatus including a processor, a pixel value of a corresponding block in a base layer, the corresponding block being referred by a current block in an enhanced layer, the first obtaining including obtaining a pixel value of a padding area by using a pixel value of a neighboring block in the base layer when an inter macroblock of the base layer covers the corresponding block of the base layer, the padding area being an area of the corresponding block covered by the inter macroblock of the base layer, the neighboring block being a block adjacent to the padding area; upsampling, with the video decoding apparatus, the pixel value of the corresponding block in the base layer; second obtaining, with the video decoding apparatus, a predicted pixel value of a target block in an enhanced layer by using the upsampled pixel value of the corresponding block; and reconstructing, with the video decoding apparatus, the target block by using the predicted pixel value of the target block and a residual of the target block, the residual of the target block being a difference value between the predicted pixel value of the target block and a pixel value of the target block.