New intra prediction modes
    3.
    发明公开
    New intra prediction modes 审中-公开
    Neue Intra-Prädiktionsmodi

    公开(公告)号:EP2388999A2

    公开(公告)日:2011-11-23

    申请号:EP11004080.5

    申请日:2011-05-17

    IPC分类号: H04N7/26 H04N7/34

    摘要: New intra angular prediction modes and methods for decoding are offered for providing greater accuracy when processing predictions of digital video data blocks. One new method considers predicting a current prediction sample by taking the linear interpolation of two previously reconstructed reference samples that lay along a common angular line. Another new method offers a method for making previously unavailable samples from a neighboring block available as reference samples when predicting a current prediction sample. Another new method considers a new combined intra prediction mode that utilizes a local mean to predict a current prediction sample. And a new decoding method offers to rearrange the order in which video data blocks are predicted based on the intra prediction mode used for predicting the video data blocks.

    摘要翻译: 提供用于解码的新的角内预测模式和方法,用于在处理数字视频数据块的预测时提供更高的精度。 一种新方法考虑通过采用沿着公共角度线布置的两个先前重建的参考样本的线性内插来预测当前预测样本。 另一种新方法提供了一种在预测当前预测样本时,作为可用作参考样本的相邻块的先前不可用样本的方法。 另一种新方法考虑了利用局部均值来预测当前预测样本的新的组合帧内预测模式。 并且新的解码方法提供了基于用于预测视频数据块的帧内预测模式重新排列预测视频数据块的顺序。

    VIDEO DECODING METHOD, VIDEO ENCODING METHOD AND STORAGE MEDIUM STORING ENCODED VIDEO INFORMATION

    公开(公告)号:EP4236315A2

    公开(公告)日:2023-08-30

    申请号:EP23179540.2

    申请日:2013-06-26

    IPC分类号: H04N19/174

    摘要: A decoding apparatus for an image decoding is configured to receive (S1810) image information including prediction information, information on a tile (610, 620) and information on a slice, wherein the tile (610, 620) is a rectangular region including a specific number of largest coding units (LCUs) within a particular tile column and a particular tile row based on information related to tile column width and tile row height included in the image information, and the slice comprises an integer number of largest coding units (LCUs); derive (S1820) the tile (610, 620) and the slice in a current picture (300; 400; 500; 1110; 1210; 1410) based on the received image information, wherein the current picture (300; 400; 500; 1110; 1210; 1410) includes more than one tile (610, 620) and more than one slice; derive prediction samples for the more than one tiles (610, 620) and the more than one slices by performing prediction based on the prediction information; and reconstruct the current picture based on the prediction samples for the more than one tiles (610, 620) and the more than one slices.
    Plural coding units (CUs) are divided from a largest coding unit (LCU). The following constraints are imposed:
    - the largest coding units (LCUs) in the slice are ordered consecutively in tile scan order,
    - in the tile scan order, largest coding units (LCUs) in each of the tiles (610, 620) in the slice are ordered in the raster scan order in the each of the tiles (610, 620), and the tiles (610, 620) in the slice are ordered in the raster scan order,
    - the slice includes an integer number of tiles, and
    - tile IDs specifying the tiles (610, 620) ordered in the slice are consecutive.

    METHOD FOR INTRA PREDICTION
    5.
    发明公开

    公开(公告)号:EP3863288A1

    公开(公告)日:2021-08-11

    申请号:EP21165675.6

    申请日:2012-10-16

    摘要: An intra prediction method performed by a decoding apparatus is disclosed, the method comprising the steps of:
    deriving a first candidate intra prediction mode based on a left neighboring block of a current block;
    deriving a second candidate intra prediction mode based on an upper neighboring block of the current block;
    determining an intra prediction mode for the current block as one of candidate modes including the first candidate intra prediction mode and the second candidate intra prediction mode; and
    generating prediction samples on the current block based on the determined intra prediction mode,
    wherein when the upper neighboring block is not located in a current largest coding unit, LCU, in which the current block is located, the second candidate intra prediction mode is set equal to non-angular mode.

    New planar prediction mode
    8.
    发明公开
    New planar prediction mode 有权
    Neuer planarerPrädiktionsmodus

    公开(公告)号:EP2391129A1

    公开(公告)日:2011-11-30

    申请号:EP11004325.4

    申请日:2011-05-25

    IPC分类号: H04N7/26 H04N7/34

    摘要: New intra planar modes are introduced for predicting digital video data. As part of the new intra planar modes, various methods are offered for predicting a first sample within a prediction unit, where the first sample is needed for referencing to when processing the new intra planar modes. And once the first sample is successfully predicted, the new intra planar modes are able to predict a sample of video data within the prediction unit by processing a bi-linear interpolation of four previously reconstructed reference samples.

    摘要翻译: 引入新的内部平面模式用于预测数字视频数据。 作为新的内部平面模式的一部分,提供了用于预测预测单元内的第一样本的各种方法,其中需要第一样本以在处理新的内部平面模式时参考。 并且一旦成功地预测了第一个样本,新的平面内模式能够通过处理四个先前重建的参考样本的双线性内插来预测预测单元内的视频数据的样本。

    METHOD FOR DECODING VIDEO AND ENCODING VIDEO, COMPUTER READABLE STORAGE MEDIUM AND METHOD FOR TRANSMITTING DATA

    公开(公告)号:EP4398579A2

    公开(公告)日:2024-07-10

    申请号:EP24176047.9

    申请日:2012-04-20

    IPC分类号: H04N19/82

    摘要: A method for decoding video performed by a decoding apparatus comprises (S 1410) receiving information on an intra prediction mode for a current block (700), (S310, S 1420) determining the intra prediction mode for the current block (700) as a horizontal prediction mode based on the information on the intra prediction mode, (S340, S1430) deriving predicted samples of the current block (700) based on the horizontal prediction mode, and (S 1440) generating a reconstructed block using the derived predicted samples. The predicted samples include filtered predicted samples. The filtered predicted samples are adjacent to the upper boundary of the current block (700) and is located in a first row of the current block (700). A predicted sample is derived based on a reference sample located in a horizontal prediction direction with regard to the predicted sample, wherein the reference sample is adjacent to a left boundary of the current block (700). A filtered predicted sample (720) is derived by applying filtering based on a first reference sample (730) located in the horizontal prediction direction with regard to the filtered predicted sample and a second reference sample (710) neighboring an upper side of the filtered predicted sample. The first reference sample (730) is located outside the current block (700) and is adjacent to the left boundary of the current block (700), and the second reference sample (710) is located outside the current block (700) and is adjacent to the upper boundary of the current block (700).

    INTRA-PREDICTION METHOD FOR VIDEO DECODING AND VIDEO ENCODING

    公开(公告)号:EP4224844A3

    公开(公告)日:2023-09-27

    申请号:EP23172623.3

    申请日:2012-04-20

    摘要: An intra prediction method, for video decoding, comprises the steps of (S1410) receiving information on prediction for a current block (600), (S310, S1420) deriving an intra prediction mode of the current block (600) based on the information on the prediction, and (S340, S1430) generating a predicted block of the current block based on the intra prediction mode, wherein the predicted block comprises predicted samples. The intra prediction mode is a vertical prediction mode. Among the predicted samples, a predicted sample (620) is derived by using a first reference sample (610) located along a vertical prediction direction with regard to a location of the predicted sample (620). The step of generating the predicted block includes filtering the predicted sample (620) when the predicted sample (620) is adjacent to a left boundary of the current block (600). The filtering the predicted sample (620) is performed based on a second reference sample (630) which is located outside of the current block (600), is located along a horizontal direction with regard to the location of the predicted sample (620) and is adjacent to the left boundary of the current block (600)