公开(公告)号：US20150296221A1

公开(公告)日：2015-10-15

申请号：US14750608

申请日：2015-06-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao YANG ,  Bin LI ,  Houqiang LI ,  Jiantong ZHOU

IPC: H04N19/593 ,  H04N19/46 ,  H04N19/11 ,  H04N19/186 ,  H04N19/176 ,  H04N19/44

CPC classification number: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593

Abstract: Embodiments of the present invention provide an encoding or decoding method and apparatus. The method includes: extracting first information in a bitstream; determining a chroma component intra prediction mode according to the first information; when the chroma component intra prediction mode cannot be determined according to the first information, extracting second information in the bitstream; and determining the chroma component intra prediction mode according to the second information, where the first information includes information for indicating whether the chroma component intra prediction mode is a DM mode or an LM mode, the second information is used to indicate a remaining mode as the chroma component intra prediction mode, and the remaining mode is one of available chroma component intra prediction modes other than a mode that may be determined according to the first information.

Abstract translation: 本发明的实施例提供一种编码或解码方法和装置。 该方法包括：提取比特流中的第一信息; 根据第一信息确定色度分量帧内预测模式; 当色度分量帧内预测模式不能根据第一信息确定时，提取比特流中的第二信息; 以及根据所述第二信息确定所述色度分量帧内预测模式，其中所述第一信息包括用于指示所述色度分量帧内预测模式是DM模式还是LM模式的信息，所述第二信息用于将剩余模式指示为 色度分量帧内预测模式，并且剩余模式是可以根据第一信息确定的模式之外的可用色度分量帧内预测模式之一。

公开(公告)号：US20250159206A1

公开(公告)日：2025-05-15

申请号：US19026849

申请日：2025-01-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yin ZHAO ,  Haitao YANG ,  Riyang ZHAO ,  Zhongliang LI ,  Lian ZHANG

IPC: H04N19/159 ,  H04N19/119 ,  H04N19/176 ,  H04N19/186

Abstract: A picture reconstruction method and apparatus for a video picture. The picture reconstruction method includes: obtaining a prediction mode of a current coding unit, and/or obtaining a prediction partition mode of the current coding unit, where the current coding unit includes a luma coding block and a chroma coding block, and the prediction partition mode is a mode of splitting the current coding unit into prediction blocks or prediction units; obtaining a transform block of the current coding unit based on the prediction partition mode and/or the prediction mode; and generating a reconstructed picture block of the current coding unit based on the transform block.

公开(公告)号：US20250097418A1

公开(公告)日：2025-03-20

申请号：US18962804

申请日：2024-11-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shen WANG ,  Huanbang CHEN ,  Haitao YANG ,  Li SONG

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/82

Abstract: This application discloses a filtering method, a filtering model training method, and a related apparatus, and belongs to the field of coding technologies. The method includes: determining K groups of filtering models based on a quantization parameter of a target image, determining a reconstructed block corresponding to a current coding block in the target image, determining a target filtering model from the K groups of filtering models, and filtering the reconstructed block based on the target filtering model. A same group of filtering models is applicable to coding blocks with same coding quality, different groups of filtering models are applicable to coding blocks with different coding quality, and different filtering models in a same group of filtering models are applicable to coding blocks with different content.

公开(公告)号：US20240422320A1

公开(公告)日：2024-12-19

申请号：US18817358

申请日：2024-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi LUO ,  Haitao YANG ,  Junkai FENG

IPC: H04N19/13 ,  H04N19/169 ,  H04N19/70 ,  H04N19/88 ,  H04N19/91

Abstract: The present application discloses example encoding methods and apparatuses, and decoding methods and apparatuses, and relate to the field of media technologies. One example method includes obtaining a bitstream, and obtaining a plurality of data packets based on the bitstream. Based on identifiers of the plurality of data packets, the plurality of data packets is sent to a plurality of entropy decoders for decoding, to obtain a plurality of syntax elements. Media content is restored based on the plurality of syntax elements.

公开(公告)号：US20240388706A1

公开(公告)日：2024-11-21

申请号：US18785937

申请日：2024-07-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Alexey Konstantinovich FILIPPOV ,  Huanbang CHEN ,  Vasily Alexeevich RUFITSKIY ,  Haitao YANG ,  Elena Alexandrovna ALSHINA

IPC: H04N19/119 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/503 ,  H04N19/70

Abstract: A method of coding is described. The method can include obtaining a bitstream for a current picture, obtaining a value of a first indicator for the current picture according to the bitstream indicating a slice type, and obtaining a value of a second indicator for the current picture according to the bitstream indicating whether a weighted prediction parameter is present in a picture header or slice header of the bitstream. The method can also include parsing a value of the weighted prediction parameter for a current block of a current slice of the current picture from the bitstream. Furthermore, the method can include predicting the current block according to the value of the weighted prediction parameter.

公开(公告)号：US20240146909A1

公开(公告)日：2024-05-02

申请号：US18503304

申请日：2023-11-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yin ZHAO ,  Haitao YANG ,  Jianle CHEN ,  Lian ZHANG

IPC: H04N19/107 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/593

CPC classification number: H04N19/107 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/593

Abstract: An image prediction method, apparatus, and system, a device, and a storage medium are provided. The method includes: (401) obtaining a split mode of a current node, where the current node is an image block in a coding tree unit in a current image; (402) determining, based on the split mode of the current node and a size of the current node, whether the current node satisfies a first condition; and (403) when it is determined that the current node satisfies the first condition, performing intra prediction on all coding blocks belonging to the current node, to obtain predictors of all the coding blocks belonging to the current node.

公开(公告)号：US20240007663A1

公开(公告)日：2024-01-04

申请号：US18345223

申请日：2023-06-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang CHEN ,  Xiang MA ,  Haitao YANG ,  Jianle CHEN

IPC: H04N19/513 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

Abstract: This application provides a video picture prediction method and apparatus, to resolve a problem in a conventional technology that a length of a coded video sequence is increased. The first type of identifier may be added to a bitstream. The first type of identifier is used to indicate whether an affine motion model-based inter prediction mode is enabled for a video picture. For a video picture or a picture block included in the slice for which the affine motion model does not need to be used, a parameter, related to the affine motion model, of the picture block may not need to be transmitted. On a decoder side, during decoding of the picture block, the parameter related to the affine motion model does not need to be parsed. This can reduce load of a decoder, increase a processing speed, and decrease a processing time.

公开(公告)号：US20240007637A1

公开(公告)日：2024-01-04

申请号：US18368683

申请日：2023-09-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang MA ,  Jue MAO ,  Haitao YANG

IPC: H04N19/13 ,  H04N19/91 ,  H04N19/132 ,  H04N19/172

CPC classification number: H04N19/13 ,  H04N19/91 ,  H04N19/132 ,  H04N19/172

Abstract: This application relates to the field of artificial intelligence (AI)-based video or picture compression technologies. The decoding method includes: performing probability estimation on input data by using a neural network, to obtain probability distribution of residual values of a plurality of samples and included in a residual of a current picture, where the input data includes at least a residual of a reference picture, and the reference picture is a decoded picture obtained before the current picture is decoded; performing arithmetic entropy decoding on a bitstream based on the probability distribution of the residual values of the plurality of samples and included in the residual of the current picture, to obtain first entropy decoding data, where the first entropy decoding data represents the residual of the current picture; and obtaining a reconstructed sample value of the current picture based on the residual of the current picture.

公开(公告)号：US20230421755A1

公开(公告)日：2023-12-28

申请号：US18462625

申请日：2023-09-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huanbang CHEN ,  Jianle CHEN ,  Haitao YANG

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/137

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/137

Abstract: Embodiments of this application disclose a bi-directional inter prediction method and apparatus. The method includes: determining a reference picture index i1 of a first reference picture list as a first reference picture index; determining a reference picture index i2 of a second reference picture list as a second reference picture index; and predicting the current block based on the first reference picture index and the second reference picture index. A POC corresponding to i1 is a POC, closest to a POC of a current picture, in all POCs that are in the first reference picture list and that are less than the POC of the current picture, a POC corresponding to i2 is a POC, closest to the POC of the current picture, in all POCs that are in the second reference picture list and that are greater than the POC of the current picture. Coding efficiency can be improved.

公开(公告)号：US20230209096A1

公开(公告)日：2023-06-29

申请号：US18063955

申请日：2022-12-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xu CHEN ,  Haitao YANG

IPC: H04N19/82 ,  H04N19/88 ,  H04N19/186 ,  H04N19/176

CPC classification number: H04N19/82 ,  H04N19/88 ,  H04N19/176 ,  H04N19/186

Abstract: A loop filtering method and apparatus are provided. The method includes: obtaining a first pixel matrix, where a value of a pixel at a corresponding location in the first pixel matrix corresponds to a luminance value of a pixel at a corresponding location in a first picture block; obtaining a second pixel matrix, where a pixel at a corresponding location in the second pixel matrix corresponds to a quantization step value corresponding to the luminance value of the pixel at the corresponding location in the first picture block; performing filtering processing on an input pixel matrix by using a filtering network to obtain an output pixel matrix, where the filtering network is a neural network that has a filtering function and is obtained through training, the output pixel matrix includes a third pixel matrix. Thus, filtering effect can be improved for reconstructed pictures of various quality levels.