摘要:
Provided is a video decoding method including acquiring, from a bitstream, segment-wise direct component (DC) coding (SDC) mode information indicating whether an SDC mode is allowed in a depth image; determining prediction mode information and partition mode information applied to a coding unit of the depth image; acquiring an SDC flag indicating whether an SDC mode is applied to the coding unit from the bitstream according to the SDC mode information, the prediction mode information, and the partition mode information; acquiring a residual DC value corresponding to a prediction unit of the coding unit from the bitstream when the SDC flag indicates that the SDC mode is applied to the coding unit; and reconstructing a current block of the prediction unit by using the residual DC value and prediction values of the prediction unit, wherein the residual DC value is acquired from a residual block of the prediction unit.
摘要:
Provided is a multilayer video decoding method including obtaining a multilayer video bitstream; determining, based on the obtained multilayer video bitstream, whether or not a default reference type, in which at least one layer is inter-layer predicted by using at least one reference layer by default, is used; and inter-layer predicting the at least one layer by using the at least one reference layer according to the default reference type, based on the determining of whether or not the default reference type is used, and decoding an image including the at least one layer.
摘要:
An inter-layer video encoding method includes configuring at least one prediction mode as a simplified depth coding (SDC) mode; determining a prediction mode with respect to a current block of a depth image; generating a prediction block of the current block by using the prediction mode; and generating a bitstream by encoding the depth image by using the prediction block.
摘要:
Provided are multilayer video encoding/decoding methods and apparatuses. A multilayer video decoding method may comprise obtaining, from a bitstream, information indicating a maximum size of a decoded picture buffer (DPB) with respect to a layer set comprising a plurality of layers; determining a size of the DPB with respect to the layer set based on the obtained information indicating the maximum size of the DPB; and storing a decoded picture of the layer set in the DPB of the determined size.
摘要:
Provided are a video stream decoding method and apparatus, and a video stream encoding method and apparatus. The video stream decoding method includes: receiving encoded data of a video stream; obtaining, from the received encoded data, prediction information about encoded current-view image data; and decoding a current-view image by generating motion-compensated current-view image data by using at least one of the encoded current-view image data and another-view image data based on the obtained prediction information, wherein the obtained prediction information includes Advanced Motion Vector Prediction (AMVP) mode prediction information generated by using a candidate list including two candidates, and the obtained prediction information further includes a motion vector prediction flag indicating a candidate from among the two candidates included in the candidate list, which is used in generating the AMVP mode prediction information.
摘要:
An interlayer video decoding method and apparatus and an interlayer video encoding method and apparatus are provided. The decoding method includes: reconstructing, based on encoding information obtained from a bitstream, a first layer image and a first layer depth map; determining whether a disparity vector is predictable using peripheral blocks of a second layer current block; and when the disparity vector is not predictable using the peripheral blocks, determining a disparity vector of the second layer current block using a default disparity vector and the reconstructed first layer depth map.
摘要:
An interlayer video decoding method is provided. The interlayer video decoding method includes determining a disparity vector for performing inter layer prediction on a second layer current block with reference to a first layer image; determining a first layer reference location corresponding to the determined disparity vector in relation to a location of the second layer current block; obtaining motion information of at least one peripheral block located in the periphery of the first layer reference location; and adding at least one motion information of the obtained motion information to a candidate list for inter prediction.
摘要:
Disclosed is a video decoding method including: obtaining a disparity vector having components in sub-pixel unit for interlayer prediction between images belonging to a current layer and a reference layer; determining a position of an integer pixel of the reference layer corresponding to a position indicated by the disparity vector obtained from the position of a current pixel of the current layer; and decoding the image of the current layer by using prediction information on a candidate area of the reference layer corresponding to the determined position of the integer pixel.
摘要:
Apparatuses and methods configured to encode and decode multi-layer video are provided. A method of prediction-decoding a multi-layer video includes obtaining information indicating whether a decoded picture buffer (DPB) storing a first layer and a DPB storing a second layer operate identically, and operating the DPB storing the second layer based on the obtained information.
摘要:
Provided is a method of reconstructing multilayer images including obtaining RAP picture information of a plurality of layers including a base layer and an enhancement layer, independently decoding a RAP picture of the base layer by using RAP picture information, and independently decoding a RAP picture of the enhancement layer by using RAP picture information.