Abstract:
Provided is a merge mode for determining, by using motion information of another block, motion information of pictures that construct a multiview video. A multiview video decoding method includes obtaining motion inheritance information specifying whether or not motion information of a corresponding block of a first layer which corresponds to a current block of a second layer is available as motion information of the second layer, obtaining a merge candidate list by selectively including the motion information of the corresponding block in merge candidates when the current block that was encoded according to the merge mode is decoded, determining a merge candidate included in the merge candidate list according to merge candidate index information, and obtaining motion information of the current block, based on the merge candidate.
Abstract:
Provided is a video decoding method including acquiring simplified depth coding (SDC) mode information indicating whether an SDC mode for encoding a residual block of a prediction unit included in a coding unit of a depth image by using one residual DC component is applied to the coding unit, acquiring the residual DC component corresponding to the prediction unit of the coding unit to which the SDC mode is applied based on the SDC mode information, and reconstructing a current block of the coding unit by using the residual DC component and a reference block of the prediction unit.
Abstract:
Provided are a scalable video decoding method and a scalable video decoding apparatus. The scalable video decoding method includes obtaining, from a bitstream, scalability mask information specifying whether scalable video decoding is performed according to each of scalability types in a current video, and when scalability mask information for scalable video decoding an auxiliary picture indicates performance, determining one of auxiliary picture types comprising an alpha plane and a depth picture of a primary picture of another layer, by using a scalability index indicating a type of the auxiliary picture to be decoded in a current layer, and decoding the auxiliary picture of the current layer.
Abstract:
A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes reconstructing a first layer image based on encoding information of the first layer image that is obtained from a bitstream, splitting a largest coding unit of a second layer image into coding units based on split information of the second layer image that is obtained from the bitstream, splitting the coding units into prediction units for prediction encoding, determining whether to use a coding tool for decoding a current prediction unit based on at least one among a prediction mode of the current prediction unit among the prediction units, size information of the current prediction unit, and color depth information of the current prediction unit, and decoding the current prediction unit, using the coding tool, in response to the determining to use the coding tool.
Abstract:
An interlayer video decoding method according to an embodiment may include determining whether to perform brightness compensation with respect to a second layer current block to be reconstructed by using a first layer reference block; determining first layer reference pixels by using the closest integer pixels to reference location of a first layer corresponding to location of reference pixels for the second layer current block based on whether to perform the brightness compensation; and determining brightness compensation parameters regarding the second layer current block by using the determined first layer reference pixels and pixels surrounding the second layer current block.