公开(公告)号：US20190098336A1

公开(公告)日：2019-03-28

申请号：US16201580

申请日：2018-11-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongbing LIN ,  Xiaozhen ZHENG

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/196 ,  H04N19/176

Abstract: A method for processing an intra prediction mode includes: determining whether an intra prediction mode of each neighboring block in multiple neighboring blocks of a current block is applicable to the current block; and obtaining multiple mapped intra prediction modes of the current block according to a result of the determining, if it is determined that an intra prediction mode of a neighboring block is applicable to the current block, setting the intra prediction mode of the neighboring block as a mapped intra prediction mode of the current block, and if it is determined that the intra prediction mode of the neighboring block is not applicable to the current block, setting a specific intra prediction mode as the mapped intra prediction mode of the current block.

公开(公告)号：US20170353736A1

公开(公告)日：2017-12-07

申请号：US15684352

申请日：2017-08-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongbing LIN ,  Xiaozhen ZHENG

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/196

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/196

Abstract: A method and an apparatus for processing an intra prediction mode is disclosed. The method includes: determining whether an intra prediction mode of each neighboring block in multiple neighboring blocks of a current block is applicable to the current block; and obtaining multiple mapped intra prediction modes of the current block according to a result of the determining, if it is determined that an intra prediction mode of a neighboring block is applicable to the current block, setting the intra prediction mode of the neighboring block as a mapped intra prediction mode of the current block, and if it is determined that the intra prediction mode of the neighboring block is not applicable to the current block, setting a specific intra prediction mode as the mapped intra prediction mode of the current block.

公开(公告)号：US20180103257A1

公开(公告)日：2018-04-12

申请号：US15836827

申请日：2017-12-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaozhen ZHENG ,  Jianhua ZHENG ,  Hai CHEN ,  Meng LI

IPC: H04N19/176 ,  H04N19/46 ,  H04N19/12 ,  H04N19/167

CPC classification number: H04N19/176 ,  H04N19/12 ,  H04N19/124 ,  H04N19/167 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/85

Abstract: Embodiments of the present disclosure provide an image encoding method, an image decoding method, an encoding device, and a decoding device. The method includes: determining a conversion function parameter of a current image block; determining a conversion function parameter of a neighboring image block corresponding to the current image block; determining, according to a correlation between the conversion function parameter of the current image block and the conversion function parameter of the neighboring image block, whether to perform merge encoding on the conversion function parameter of the current image block and the conversion function parameter of the neighboring image block, and determining a first indicator, where the first indicator is used to indicate whether to perform merge encoding on the conversion function parameter of the current image block and the conversion function parameter of the neighboring image block; and encoding the first indicator.

公开(公告)号：US20130034167A1

公开(公告)日：2013-02-07

申请号：US13647682

申请日：2012-10-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaozhen ZHENG

IPC: H04N7/26

CPC classification number: H04N19/583 ,  H04N19/119 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/593 ,  H04N19/91

Abstract: A coding method includes: partitioning an image block to be decoded irregularly according to an irregular partitioning mode and a position parameter to obtain at least two different sub-blocks; comparing the sub-blocks with a reference sub-block to obtain a residual of a pixel value of the image block to be coded; obtaining a reference position parameter according to a surrounding block of the image block to be coded, and subtracting the reference position parameter from the position parameter of the image block to be coded to obtain a position parameter difference of the image block to be coded; quantizing the residual, and performing entropy coding on a result of the quantization, the motion vector information, and the position parameter difference; and writing the entropy coding result and partitioning mode information of the image block into a code stream.

Abstract translation: 编码方法包括：根据不规则分割模式和位置​​参数对不规则解码的图像块进行分割，以获得至少两个不同的子块; 将子块与参考子块进行比较以获得要编码的图像块的像素值的残差; 根据要编码的图像块的周围块获得参考位置参数，并从要编码的图像块的位置参数中减去参考位置参数，以获得要编码的图像块的位置参数差; 量化残差，对量化结果，运动矢量信息和位置参数差执行熵编码; 以及将所述图像块的所述熵编码结果和划分模式信息写入代码流。

公开(公告)号：US20190158852A1

公开(公告)日：2019-05-23

申请号：US16261097

申请日：2019-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu CHEN ,  Xiaozhen ZHENG

IPC: H04N19/159 ,  H04N19/96 ,  H04N19/147 ,  H04N19/176 ,  H04N19/597 ,  H04N19/46

Abstract: The present invention discloses an intra-frame depth map block decoding method, including: acquiring, from a bitstream, a depth modeling mode (DMM) used for a depth map block, wherein the DMM is applied to a recursive quadtree (RQT) coding or simplified depth coding (SDC); obtaining a block predicted value of a depth map subblock obtained through segmentation in the DMM according to the DMM; acquiring, from the bitstream, a block offset value of the depth map subblock, and residual information of each pixel in the depth map subblock; and obtaining a reconstruction value of each pixel in the depth map subblock according to the block predicted value, the block offset value and the residual information of each pixel in the depth map subblock.

公开(公告)号：US20180376047A1

公开(公告)日：2018-12-27

申请号：US15986149

申请日：2018-05-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Meng LI ,  Hai CHEN ,  Xiaozhen ZHENG ,  Jianhua ZHENG

IPC: H04N5/235 ,  G06F7/483 ,  G06T5/00 ,  H04N19/186 ,  H03M7/24

Abstract: The present disclosure discloses a method and an apparatus for processing image signal conversion. In one example method, an input primary color signal is obtained. The primary color signal is a numeric value of an optical signal corresponding to an image. The primary color signal is proportional to light intensity. Conversion processing is performed on the primary color signal to obtain processed image information. The image information is a numeric expression value of the image. The conversion processing includes at least the following processing: L ′ = a  ( pL ( p - 1 )  L + 1 ) m + b , where a, b, m, and p are rational numbers, L is the input primary color signal, and L′ is the processed image information.

公开(公告)号：US20180302649A1

公开(公告)日：2018-10-18

申请号：US16012446

申请日：2018-06-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaozhen ZHENG

IPC: H04N19/597 ,  H04N19/105 ,  H04N19/139 ,  H04N19/593 ,  H04N19/59 ,  H04N19/103 ,  H04N19/176 ,  H04N19/159

Abstract: Embodiments of the present invention provide methods and apparatuses for coding and decoding a depth map. The coding method includes: obtaining prediction data corresponding to a current image block of the depth map, obtaining a predicted pixel value from the prediction data according to a preset step, and calculating a first average value of the prediction data according to the predicted pixel value, where the preset step is a positive integer except 1; obtaining a residual of the current image block according to the first average value of the prediction data and a pixel value of a pixel of the current image block; and coding the residual of the current image block. In this way, coding and decoding efficiency can be improved.

公开(公告)号：US20150319459A1

公开(公告)日：2015-11-05

申请号：US14795677

申请日：2015-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaozhen ZHENG

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/159 ,  H04N19/182

CPC classification number: H04N19/593 ,  H04N13/161 ,  H04N19/105 ,  H04N19/11 ,  H04N19/159 ,  H04N19/182 ,  H04N19/597

Abstract: Embodiments of the present invention provide methods and apparatuses for coding and decoding a depth map, where the coding method includes: acquiring an intra-frame prediction mode of a current image block of the depth map; determining whether the intra-frame prediction mode belongs to a preset intra-frame prediction mode set; if yes, using a preset intra-frame prediction method to perform coding processing on the current image block, so as to acquire a residual of the current image block. The preset intra-frame prediction method includes a first intra-frame prediction method; and a difference operation is performed between an average pixel value of the current image block and an average pixel value of prediction data of the current image block to obtain the residual of the current image block.

Abstract translation: 本发明的实施例提供了对深度图进行编码和解码的方法和装置，其中编码方法包括：获取深度图的当前图像块的帧内预测模式; 确定帧内预测模式是否属于预设的帧内预测模式集合; 如果是，则使用预设的帧内预测方法对当前图像块执行编码处理，以便获取当前图像块的残差。 预设的帧内预测方法包括：第一帧内预测方法; 并且在当前图像块的平均像素值和当前图像块的预测数据的平均像素值之间执行差异运算，以获得当前图像块的残差。

公开(公告)号：US20180199060A1

公开(公告)日：2018-07-12

申请号：US15916670

申请日：2018-03-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaozhen ZHENG

IPC: H04N19/583 ,  H04N19/91 ,  H04N19/463 ,  H04N19/119 ,  H04N19/196 ,  H04N19/176 ,  H04N19/593

CPC classification number: H04N19/583 ,  H04N19/119 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/593 ,  H04N19/91

Abstract: A coding method includes: partitioning an image block to be decoded irregularly according to an irregular partitioning mode and a position parameter to obtain at least two different sub-blocks; comparing the sub-blocks with a reference sub-block to obtain a residual of a pixel value of the image block to be coded; obtaining a reference position parameter according to a surrounding block of the image block to be coded, and subtracting the reference position parameter from the position parameter of the image block to be coded to obtain a position parameter difference of the image block to be coded; quantizing the residual, and performing entropy coding on a result of the quantization, the motion vector information, and the position parameter difference; and writing the entropy coding result and partitioning mode information of the image block into a code stream.

公开(公告)号：US20150312592A1

公开(公告)日：2015-10-29

申请号：US14795746

申请日：2015-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaozhen ZHENG

IPC: H04N19/597 ,  H04N19/176 ,  H04N19/105 ,  H04N19/139

CPC classification number: H04N19/597 ,  H04N19/103 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/59 ,  H04N19/593

Abstract: Embodiments of the present invention provide methods and apparatuses for coding and decoding a depth map. The coding method includes: obtaining prediction data corresponding to a current image block of the depth map, obtaining a predicted pixel value from the prediction data according to a preset step, and calculating a first average value of the prediction data according to the predicted pixel value, where the preset step is a positive integer except 1; obtaining a residual of the current image block according to the first average value of the prediction data and a pixel value of a pixel of the current image block; and coding the residual of the current image block. In this way, coding and decoding efficiency can be improved.

Abstract translation: 本发明的实施例提供了用于对深度图进行编码和解码的方法和装置。 编码方法包括：获得与深度图的当前图像块相对应的预测数据，根据预设步骤从预测数据获得预测像素值，并根据预测像素值计算预测数据的第一平均值 ，其中预设步长是除1之外的正整数; 根据预测数据的第一平均值和当前图像块的像素的像素值获得当前图像块的残差; 并对当前图像块的残差进行编码。 以这种方式，可以提高编码和解码效率。