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

    公开(公告)号:FI4002842T3

    公开(公告)日:2023-11-02

    申请号:FI22150345

    申请日:2013-06-26

    Abstract: A decoding apparatus for an image decoding is configured to receive (S1810) image information including information on a tile (610, 620) and information on a slice, wherein the tile (610, 620) is a common rectangular region of a column of largest coding units (LCUs) and a row of largest coding units (LCUs) 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, and perform decoding (51830) for the current picture (300; 400; 500; 1110; 1210; 1410) based on the more than one tile (610, 620) and the more than one slice.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 and the tiles (610, 620) in the slice are ordered in the raster scan order.And tile IDs specifying the tiles (610, 620) ordered in the slice are consecutive.

    METHODS FOR INTRA PREDICTION AND STORAGE MEDIUM

    公开(公告)号:FI3863288T3

    公开(公告)日:2023-07-19

    申请号:FI21165675

    申请日:2012-10-16

    Abstract: An image decoding method performed by a decoding apparatus comprises: deriving a first intra prediction mode based on a left neighboring block (1130) of a current block (1110); deriving a second intra prediction mode based on an upper neighboring block (1140) of the current block (1110); receiving intra prediction mode information; determining an intra prediction mode for the current block (1110) based on the intra prediction mode information, the first intra prediction mode and the second intra prediction mode; and generating prediction samples on the current block (1110) based on the determined intra prediction mode. When the upper neighboring block (1140) is not located in a current largest coding unit, LCU, in which the current block (1110) is located, the second intra prediction mode is set equal to an intra DC mode.

    METODO DE INTRA-PREDICCION, Y CODIFICADOR Y DECODIFICADOR QUE LO UTILIZAN.

    公开(公告)号:MX2023002585A

    公开(公告)日:2023-05-24

    申请号:MX2023002585

    申请日:2013-10-25

    Abstract: La presente invención se refiere a un método de intra-predicción, y a un codificador y decodificador que lo utilizan. El método de intra-predicción de acuerdo con una modalidad de la presente invención consiste en los pasos de: derivar un modo de predicción de un bloque actual, y generar un bloque de predicción con respecto al bloque actual con base en el modo de predicción del bloque actual. Cuando el modo de predicción del bloque actual es un modo de predicción intra-angular, los valores de las muestras limítrofes de entre las muestras limítrofes izquierdas y las muestras limítrofes superiores del bloque de predicción, las cuales no están posicionadas en una dirección de predicción del modo de predicción intra-angular, se derivan con base en las muestras de referencia posicionadas en la dirección de predicción del modo de predicción intra-angular y con base en las muestras de referencia adyacentes.

    Intra-prediction method, and encoder and decoder using same

    公开(公告)号:AU2021204343B2

    公开(公告)日:2022-09-01

    申请号:AU2021204343

    申请日:2021-06-25

    Abstract: A method for decoding an image, performed by a decoding apparatus, the method comprising: receiving prediction mode information; 5 deriving an intra prediction mode for a current block based on the prediction mode information; and generating prediction samples of the current block based on the intra prediction mode, wherein the intra prediction mode is a horizontal prediction mode having a horizontal prediction direction, 10 wherein the prediction samples are generated based on first reference samples located along the horizontal prediction direction with regard to locations of the prediction samples, wherein a prediction sample which is adjacent to a top boundary of the current block among the prediction samples is filtered based on a second reference sample located along a vertical direction with regard to a location of the prediction sample, 15 wherein the second reference sample is adjacent to an upper side of the prediction sample, and wherein a filtering coefficient applied to a value of the prediction sample is larger than a filtering coefficient applied to a value of the second reference sample.

    INTRA-PREDICTION METHOD, AND VIDEO ENCODER AND DECODER USING SAME

    公开(公告)号:CA3082413C

    公开(公告)日:2022-01-25

    申请号:CA3082413

    申请日:2012-04-20

    Abstract: The present invention relates to an intra-prediction method and to an encoder and decoder using same. The intra-prediction method according to one embodiment of the present invention comprises the steps of: deriving a prediction mode of a current block; and generating a prediction block with respect to the current block on the basis of the prediction mode of the current block. When the prediction mode of the current block is an intra-angular prediction mode, values of boundary samples from among left boundary samples and upper boundary samples of the prediction block which are not positioned in a prediction direction of the intra-angular prediction mode, are derived on the basis of reference samples positioned in the prediction direction of the intra-angular prediction mode, and on the basis of adjacent reference samples.

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