摘要:
Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.
摘要:
A method of decoding a motion vector includes: obtaining information indicating a motion vector resolution (MVR) of a current block from a bitstream; selecting one candidate block from among at least one candidate block, based on the MVR of the current block; and obtaining a motion vector of the current block corresponding to the MVR, by using a motion vector of the determined one candidate block as a prediction motion vector of the current block.
摘要:
Provided are a method of displaying a lock screen, and a user terminal device that displays the lock screen. The method includes operations of displaying, on a display unit, a lock screen including representative information of content recommended by an acquaintance of a user who uses the user terminal device, a first user interface, and a second user interface, when a user input signal is received via the first user interface, displaying, on the display unit, a portion of the content and a third user interface related to purchasing the content, and when a user input signal is received via the second user interface, displaying, on the display unit, an unlock screen including respective shortcut icons of respective applications or a password input screen for receiving an input of a password for entering the unlock screen.
摘要:
Interlayer video decoding comprising reconstructing (21) a first layer image and a first layer depth map based on encoding information obtained from a bitstream; determining (23) whether a disparity vector is predictable using peripheral blocks of a second layer current block, the peripheral blocks comprising prediction units temporally or spatially neighboring the second layer current block; and when the disparity vector is not predictable using the peripheral blocks, determining (25) a disparity vector of the second layer current block using a default disparity vector and the first layer depth map. The determined disparity vector comprises a horizontal component value which is derived by using the default disparity vector and the first layer depth map, and a vertical component value set to 0.
摘要:
Provided is a video decoding method including: obtaining mode information of a contour for determining at least one segment from a current block; determining whether first coordinates and second coordinates of the contour are derivable from a neighboring block of the current block, based on the mode information of the contour; when the first and second coordinates of the contour are derivable from the neighboring block of the current block, determining the at least one segment from the current block based on the first and second coordinates of the contour derived from the neighboring block of the current block; and performing prediction with respect to the determined at least one segment.
摘要:
Provided is an inter-layer video decoding method including: searching for a neighboring block candidate having a motion vector in an inter-layer direction from among a spatial neighboring block candidate located at the left of a current block, a spatial neighboring block candidate located at the top of the current block, and temporal neighboring block candidates at co-located locations; predicting a motion vector in an inter-layer direction of a found neighboring block candidate as a disparity vector of the current block; when the neighboring block candidate having the motion vector in the inter-layer direction is not found, searching for a neighboring block candidate having disparity vector information from among the spatial neighboring block candidates; and predicting a disparity vector of the current block by using disparity vector information of a found neighboring block candidate.
摘要:
Provided is a multi-view video decoding method including: determining whether a prediction mode of a current block being decoded is a merge mode; when the prediction mode is determined to be the merge mode, forming a merge candidate list including, as a merge candidate, at least one of an inter-view candidate, a spatial candidate, a disparity candidate, a view synthesis prediction candidate, and a temporal candidate; and predicting the current block by selecting a merge candidate to be used in predicting the current block from the merge candidate list, wherein at least one adjacent block from among adjacent blocks forming the spatial candidate is determined as the spatial candidate or the view synthesis prediction candidate based on whether view synthesis prediction is performed on the at least one adjacent block.
摘要:
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.
摘要:
An interlayer video decoding method comprises reconstructing a first layer image based on encoding information acquired from a first layer bitstream; reconstructing a second layer current block determined as a predetermined partition mode and a prediction mode by using interlayer prediction information acquired from a second layer bitstream and a first layer reference block corresponding to a current block of a first layer reconstruction image that is to be reconstructed in a second layer; determining whether to perform luminance compensation on the second layer current block in a partition mode in which the second layer current block is not split; and compensating for luminance of the second layer current block according to whether luminance compensation is performed and reconstructing a second layer image including the second layer current block of which luminance is compensated for.
摘要:
Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.