公开(公告)号：US20130202037A1

公开(公告)日：2013-08-08

申请号：US13628562

申请日：2012-09-27

申请人： Xianglin Wang ,  Vadim Seregin ,  Marta Karczewicz

发明人： Xianglin Wang ,  Vadim Seregin ,  Marta Karczewicz

IPC分类号： H04N7/32

CPC分类号： H04N19/52 ,  H04N19/109 ,  H04N19/159 ,  H04N19/176 ,  H04N19/577

摘要： A computing device determines whether a prediction unit (PU) in a B slice is restricted to uni-directional inter prediction. In addition, the computing device generates a merge candidate list for the PU and determines a selected merge candidate in the merge candidate list. If the PU is restricted to uni-directional inter prediction, the computing device generates a predictive video block for the PU based on no more than one reference block associated with motion information specified by the selected merge candidate. If the PU is not restricted to uni-directional inter prediction, the computing device generates the predictive video block for the PU based on one or more reference blocks associated with the motion information specified by the selected merge candidate.

公开(公告)号：US20140140401A1

公开(公告)日：2014-05-22

申请号：US14130098

申请日：2012-06-28

申请人： Tammy Lee ,  Jianle Chen ,  Vadim Seregin

发明人： Tammy Lee ,  Jianle Chen ,  Vadim Seregin

IPC分类号： H04N19/186 ,  H04N19/117 ,  H04N19/182 ,  H04N19/50

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

摘要： Provided are a method and an 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： 提供了一种通过使用亮度和色度信号之间的相关性来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产生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 考虑亮度预测单元的大小和根据颜色格式彼此对应的色度预测单元的大小。

公开(公告)号：US20130301705A1

公开(公告)日：2013-11-14

申请号：US13979795

申请日：2012-01-13

申请人： Vadim Seregin ,  Jianle Chen

发明人： Vadim Seregin ,  Jianle Chen

IPC分类号： H04N7/26

CPC分类号： H04N19/129 ,  H04N19/136 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/625 ,  H04N19/96

摘要： Provided are encoding and decoding methods and apparatuses for a video by selectively determining and using a scan mode. The video encoding method includes: generating transformation coefficients by performing transformation based on a transformation unit to encode an image; determining a scan mode, from among a plurality of scan modes, indicating a scanning direction of the generated transformation coefficients, based on characteristics of the transformation coefficients; and determining and outputting an encoding order of the generated transformation coefficients based on the scanning direction of the determined scan mode.

摘要翻译： 提供了通过选择性地确定和使用扫描模式的用于视频的编码和解码方法和装置。 视频编码方法包括：通过基于变换单元执行变换来编码图像来生成变换系数; 根据所述变换系数的特性，从多个扫描模式中确定表示所生成的变换系数的扫描方向的扫描模式; 以及基于所确定的扫描模式的扫描方向确定并输出所生成的变换系数的编码顺序。

公开(公告)号：US20130182761A1

公开(公告)日：2013-07-18

申请号：US13877181

申请日：2011-09-30

申请人： Jianle Chen ,  Vadim Seregin

发明人： Jianle Chen ,  Vadim Seregin

IPC分类号： H04N7/26

CPC分类号： H04N19/186 ,  H04N9/825 ,  H04N9/873 ,  H04N11/00 ,  H04N11/002 ,  H04N11/004 ,  H04N11/006 ,  H04N11/06 ,  H04N19/176 ,  H04N19/42 ,  H04N19/593

摘要： An apparatus and method for intra-predicting an image are provided. The method includes: obtaining, based on restored neighboring pixels of a chrominance block and restored neighboring pixels of a luminance pixel corresponding to the chrominance block, parameters representing a correlation between the chrominance block that is to be intra-predicted and a luminance block; and predicting, using the parameters, the chrominance block from the luminance block, wherein the obtaining the parameters includes performing a predetermined operation on the restored neighboring pixels of the chrominance block and the restored neighboring pixels of the luminance block, and wherein the predetermined operation comprises an adaptive scaling process of changing bit depths of the parameters to reduce a size of a look-up table and prevent an occurrence of overflow.

摘要翻译： 提供了一种用于图像内预测的装置和方法。 该方法包括：基于色度块的恢复的相邻像素和恢复与色度块相对应的亮度像素的相邻像素获得表示要被帧内预测的色度块与亮度块之间的相关性的参数; 以及使用所述参数来预测来自所述亮度块的色度块，其中所述获得所述参数包括对所述色度块的所恢复的相邻像素和所述恢复的亮度块的邻近像素执行预定的操作，并且其中所述预定操作包括 改变参数的位深度以减小查找表的大小并防止发生溢出的自适应缩放过程。

公开(公告)号：US10021384B2

公开(公告)日：2018-07-10

申请号：US13997524

申请日：2011-12-23

申请人： Vadim Seregin ,  Jianle Chen ,  Sun-il Lee ,  Tammy Lee

发明人： Vadim Seregin ,  Jianle Chen ,  Sun-il Lee ,  Tammy Lee

IPC分类号： H04N7/26 ,  H04N19/44 ,  H04N19/46 ,  H04N19/13 ,  H04N19/593 ,  H04N19/463 ,  H04N19/186 ,  H04N19/119 ,  H04N19/11 ,  H04N19/154

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

摘要： Methods and apparatuses for encoding and decoding an intra prediction mode of a prediction unit of a chrominance component based on an intra prediction mode of a prediction unit of a luminance component are provided. When an intra prediction mode of a prediction unit of a luminance component is the same as an intra prediction mode in an intra prediction mode candidate group of a prediction unit of a chrominance component, reconstructing the intra prediction mode candidate group of the prediction unit of the chrominance component by excluding 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 from the intra prediction mode candidate group, and encoding the intra prediction mode of the prediction unit of the chrominance component by using the reconstructed intra prediction mode candidate group.

公开(公告)号：US09736489B2

公开(公告)日：2017-08-15

申请号：US13585423

申请日：2012-08-14

申请人： Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

发明人： Xianglin Wang ,  Yunfei Zheng ,  Vadim Seregin ,  Marta Karczewicz

IPC分类号： H04N19/436 ,  H04N19/52

CPC分类号： H04N19/436 ,  H04N19/52

摘要： For each prediction unit (PU) belonging to a coding unit (CU), a video coder generates a candidate list. The video coder generates the candidate list such that each candidate in the candidate list that is generated based on motion information of at least one other PU is generated without using motion information of any of the PUs belonging to the CU. After generating the candidate list for a PU, the video coder generates a predictive video block for the PU based on one or more reference blocks indicated by motion information of the PU. The motion information of the PU is determinable based on motion information indicated by a selected candidate in the candidate list for the PU.

公开(公告)号：US09661337B2

公开(公告)日：2017-05-23

申请号：US13877181

申请日：2011-09-30

申请人： Jianle Chen ,  Vadim Seregin

发明人： Jianle Chen ,  Vadim Seregin

IPC分类号： H04N19/186 ,  H04N9/825 ,  H04N19/176 ,  H04N19/593 ,  H04N19/42 ,  H04N9/873 ,  H04N11/06 ,  H04N11/24 ,  H04N11/00

CPC分类号： H04N19/186 ,  H04N9/825 ,  H04N9/873 ,  H04N11/00 ,  H04N11/002 ,  H04N11/004 ,  H04N11/006 ,  H04N11/06 ,  H04N19/176 ,  H04N19/42 ,  H04N19/593

摘要： An apparatus and method for intra-predicting an image are provided. The method includes: obtaining, based on restored neighboring pixels of a chrominance block and restored neighboring pixels of a luminance pixel corresponding to the chrominance block, parameters representing a correlation between the chrominance block that is to be intra-predicted and a luminance block; and predicting, using the parameters, the chrominance block from the luminance block, wherein the obtaining the parameters includes performing a predetermined operation on the restored neighboring pixels of the chrominance block and the restored neighboring pixels of the luminance block, and wherein the predetermined operation comprises an adaptive scaling process of changing bit depths of the parameters to reduce a size of a look-up table and prevent an occurrence of overflow.

公开(公告)号：US20160156939A1

公开(公告)日：2016-06-02

申请号：US14130052

申请日：2012-06-27

申请人： Vadim Seregin ,  Il-koo Kim

发明人： Vadim Seregin ,  Il-koo Kim

IPC分类号： H04N19/91 ,  H04N19/13 ,  H04N19/176 ,  H04N19/44

CPC分类号： H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/593 ,  H04N19/60 ,  H04N19/91

摘要： A method of decoding a video through symbol decoding includes parsing symbols of image blocks from a received bitstream; classifying a current symbol into a prefix bit string and a suffix bit string based on a threshold value determined according to a size of a current block; performing arithmetic decoding of the prefix bit string and the suffix bit string by using respective arithmetic decoding methods determined for each of the prefix bit string and the suffix bit string; performing inverse binarization of the prefix bit string and the suffix bit string by using respective binarization methods determined for each of the prefix bit string and the suffix bit string; and restoring the image blocks by performing an inverse transformation operation and a prediction operation on the current block by using the current symbol restored through the arithmetic decoding and the inverse binarization.

公开(公告)号：US09300970B2

公开(公告)日：2016-03-29

申请号：US13179758

申请日：2011-07-11

申请人： Tammy Lee ,  Vadim Seregin

发明人： Tammy Lee ,  Vadim Seregin

IPC分类号： H04N19/129 ,  H04N19/139 ,  H04N19/52 ,  H04N19/119 ,  H04N19/176 ,  H04N19/513 ,  H04N19/56 ,  H04N19/105 ,  H04N19/159

CPC分类号： H04N19/139 ,  H04N19/105 ,  H04N19/119 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56

摘要： Encoding and decoding a motion vector using a motion vector of a current block of a current picture, which indicates a region corresponding to the current block in a first reference picture and one of generating a motion vector predictor from a motion vector of the adjacent block having a motion vector referring to the first reference picture among adjacent blocks encoded before the current block and a motion vector of an adjacent block referring to a second reference picture other than the first reference picture.

公开(公告)号：US20130182762A1

公开(公告)日：2013-07-18

申请号：US13876703

申请日：2011-09-28

申请人： Vadim Seregin ,  Jianle Chen

发明人： Vadim Seregin ,  Jianle Chen

IPC分类号： H04N7/26

CPC分类号： H04N19/117 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/86

摘要： A filtering method and apparatus for adaptively performing deblocking filtering are provided. The method includes: obtaining a parameter indicating how close pixel values of pixels adjacent to a block boundary are with respect to a predetermined line; determining a filtering strength at the block boundary based on the parameter; and performing filtering based on the filtering strength.

摘要翻译： 提供了一种用于自适应执行去块滤波的滤波方法和装置。 该方法包括：获得指示与块边界相邻的像素的像素值相对于预定行近似近似的参数; 基于参数确定块边界处的滤波强度; 并根据滤波强度进行滤波。