公开(公告)号：EP2947875A2

公开(公告)日：2015-11-25

申请号：EP15174986.8

申请日：2010-12-09

申请人： Samsung Electronics Co., Ltd

发明人： ALSHINA, Elena ,  ALSHIN, Alexander ,  SEREGIN, Vadim ,  SHLYAKHOV, Nikolay

IPC分类号： H04N19/105 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/134 ,  H04N19/122 ,  H04N19/61 ,  H04N19/11 ,  H04N19/85

CPC分类号： H04N19/85 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/122 ,  H04N19/134 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

摘要： Disclosed are a video encoding method and apparatus and a video decoding method and apparatus. The method of encoding video includes: producing a first predicted coding unit of a current coding unit, which is to be encoded; determining whether the current coding unit comprises a portion located outside a boundary of a current picture; and producing a second predicted coding unit is produced by changing a value of pixels of the first predicted coding unit by using the pixels of the first predicted coding unit and neighboring pixels of the pixels when the current coding unit does not include a portion located outside a boundary of the current picture. Accordingly, a residual block that is the difference between the current encoding unit and the second predicted encoding unit, can be encoded, thereby improving video prediction efficiency.

公开(公告)号：EP2725794A2

公开(公告)日：2014-04-30

申请号：EP12804485.6

申请日：2012-06-28

申请人： Samsung Electronics Co., Ltd.

发明人： LEE, Tammy ,  CHEN, Jianle ,  SEREGIN, Vadim

IPC分类号： H04N7/26

CPC分类号： H04N19/186 ,  H04N19/117 ,  H04N19/182 ,  H04N19/59 ,  H04N19/593

摘要： A method and apparatus for predicting a chrominance signal from a luminance signal by using a correlation between the luminance and chrominance signals. A method of predicting a chrominance component image generates a down-sampled luminance signal matching a chrominance signal by independently applying various down-sampling methods according to a location of a luminance signal, and predicts a chrominance signal from the down-sampled luminance signal, while considering a size of a luminance prediction unit and a size of a chrominance prediction unit corresponding to each other according to a color format.

摘要翻译： 一种通过使用亮度和色度信号之间的相关性从亮度信号预测色度信号的方法和装置。 预测色度分量图像的方法通过根据亮度信号的位置独立地应用各种下采样方法来生成与色度信号匹配的下采样亮度信号，并且从下采样亮度信号预测色度信号，同时 考虑根据颜色格式的亮度预测单元的大小和彼此对应的色度预测单元的大小。

公开(公告)号：EP2645719A2

公开(公告)日：2013-10-02

申请号：EP11850033.9

申请日：2011-12-23

申请人： Samsung Electronics Co., Ltd.

发明人： SEREGIN, Vadim ,  CHEN, Jianle ,  LEE, Sun-Il ,  LEE, Tammy

IPC分类号： H04N7/34

CPC分类号： H04N19/13 ,  H04N19/11 ,  H04N19/119 ,  H04N19/154 ,  H04N19/186 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593

摘要： Provided are methods and apparatuses for efficiently encoding and decoding an intra prediction mode of a prediction unit of a chrominance component by using an intra prediction mode of a prediction unit of a luminance component. The method of encoding an intra prediction mode includes: according to whether an intra prediction mode of a prediction unit of a luminance component is the same as any of predetermined intra prediction modes in an intra prediction mode candidate group applicable to a prediction unit of a chrominance component, reconstructing the intra prediction mode candidate group of the prediction unit of the chrominance component by excluding an intra prediction mode of the prediction unit of the chrominance component which is same as an intra prediction mode of the prediction unit of the luminance component from the intra prediction mode candidate group or replacing an intra prediction mode of the prediction unit of the chrominance component which is same as an intra prediction mode of the prediction unit of the luminance component with another intra prediction mode, and encoding the intra prediction mode of the prediction unit of the chrominance component by using the reconstructed intra prediction mode candidate group.

摘要翻译： 提供了用于有效地编码，并通过使用在亮度分量的预测单元的帧内预测模式的色度分量的预测单元的帧内预测模式的解码的方法和设备。 的帧内预测模式编码的方法，包括：根据是否帧内的亮度分量的预测单元的预测模式是一样的任何预定帧内预测对帧内预测模式候选组模式中适用于色度的预测单元 部件，通过排除对色度分量所有的预测单元的帧内预测模式重构所述色度分量的预测单元的帧内预测模式候选组，其是相同从帧内的亮度分量的预测单元的帧内预测模式 预测模式候选组或更换的色度分量所有的预测单元，其是相同的，如结合另一个帧内预测模式的亮度分量的预测单元的帧内预测模式的帧内预测模式，并且编码所述预测单元的帧内预测模式 通过使用重构的帧内预测色度分量的 离子模式候选组。

公开(公告)号：EP2452492A2

公开(公告)日：2012-05-16

申请号：EP10808397.3

申请日：2010-08-13

申请人： Samsung Electronics Co., Ltd.

发明人： ALSHINA, Elena ,  ALSHIN, Alexander ,  SEREGIN, Vadim

IPC分类号： H04N7/24

CPC分类号： H04N19/119 ,  H04N19/122 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/19 ,  H04N19/61

摘要： A method and apparatus for encoding an image is provided. The method and apparatus include quantizing and entropy encoding a second frequency coefficient matrix that is generated by performing a partial exchange of one or more values between rows and between columns of a first frequency coefficient matrix. A method and apparatus for decoding image data that is encoded by using the method and apparatus for encoding the image is also provided.

摘要翻译： 提供了一种用于编码图像的方法和设备。 该方法和装置包括量化和熵编码第二频率系数矩阵，该第二频率系数矩阵通过执行第一频率系数矩阵的行和列之间的一个或多个值的部分交换而生成。 还提供了用于解码通过使用用于对图像进行编码的方法和设备编码的图像数据的方法和设备。