摘要:
Provided are entropy encoding and entropy decoding for video encoding and decoding. The video entropy decoding method includes: determining a bin string and a bin index for a maximum coding unit that is obtained from a bitstream; determining a value of a syntax element by comparing the determined bin string with bin strings that is assignable to the syntax element in the bin index; storing context variables for the maximum coding unit when the syntax element is a last syntax element in the maximum coding unit, a dependent slice segment is includable in a picture in which the maximum coding unit is included, and the maximum coding unit is a last maximum coding unit in a slice segment; and restoring symbols of the maximum coding unit by using the determined value of the syntax element.
摘要:
Provided are methods of encoding and decoding a multiview video by performing inter-prediction and inter-view prediction on each view image of the multiview video. A method of prediction-encoding the multiview video includes determining at least one reference picture list from among first and second reference picture lists which respectively include restored images having a same viewpoint as a current picture for inter-prediction of the current picture and restored images for inter-view prediction; determining at least one reference picture and reference block with respect to a current block of the current picture by using the determined at least one reference picture list; and performing at least one selected from inter-prediction and inter-view prediction on the current block by using the reference block.
摘要:
Provided are scalable video encoding and decoding based on coding units having a tree structure. A scalable video encoding method includes: encoding a lower layer image based on coding units having a tree structure including completely split coding units among hierarchically split coding units of maximum coding units of an image; determining scalable coding modes for performing scalable encoding on a higher layer image based on the coding units having the tree structure by referring to the lower layer image; predicting and encoding the higher layer image by referring to encoding information of the lower layer image based on the determined scalable coding modes; and outputting coding modes and predicted values of the lower layer image and the determined scalable coding modes of the higher layer image based on the determined scalable coding modes, wherein, among spatially split maximum coding units of the image of a video, each maximum coding unit is split into a plurality of coding units, and each coding unit is determined, individually from adjacent coding units, to split into smaller coding units.
标题翻译:VERFAHREN ZUR VIDEOCODIERUNG UND VORRICHTUNGDAFÜRSOWIE VERFAHREN ZUR DECODIERUNG VON VIDEOSEQUENZEN UND VORRICHTUNGDAFÜRMIT EFFEKTIVER PARAMETERAUSGABE
摘要:
An inter-layer video decoding method according to an embodiment of the present invention may comprise the steps of: obtaining prediction mode information for a current block of a depth image from a bitstream; creating a prediction block of the current block on the basis of the obtained prediction mode information; predicting an average value for the prediction block by using the pixel values of a designated location of the prediction block; and decoding the depth image by using the average value for the prediction block.
摘要:
Disclosed is a depth map frame decoding method comprising: reconstructing a color frame obtained from a bitstream based on encoding information of the color frame; splitting a largest coding unit of a depth map frame obtained from the bitstream into one or more coding units based on split information of the depth map frame; splitting the one or more coding units into one or more prediction units for prediction decoding; determining whether to split a current prediction unit into at least one partition and decode the current prediction unit by obtaining information indicating whether to split the current prediction unit into the at least one or more partitions from the bitstream; if it is determined that the current prediction unit is to be decoded by being split into the at least one or more partitions, obtaining prediction information of the one or more prediction units from the bitstream and determining whether to decode the current prediction unit by using differential information indicating a difference between a depth value of the at least one or more partitions corresponding to an original depth map frame and a depth value of the at least one or more partitions predicted from neighboring blocks of the current prediction unit; and decoding the current prediction unit by using the differential information based on whether to split the current prediction unit into the at least one or more partitions and whether to use the differential information.
摘要:
A method of decoding multi-layer video includes decoding a first layer picture, storing the decoded first layer picture in a decoded picture buffer (DPB), and marking the first layer picture as a short-term reference picture; obtaining interlayer reference picture set (RPS) information regarding a second layer picture having a same first picture order count (POC) as the first layer picture; marking the first layer picture, which is marked as the short-term reference picture, as a long-term reference picture, based on the interlayer RPS information; performing interlayer prediction with respect to the second layer picture with reference to the first layer picture; decoding the second layer picture based on a result of performing the interlayer prediction; and, after the second layer picture is decoded, marking the first layer picture, which is marked as the long-term reference picture, as a short-term reference picture.