-
公开(公告)号：US20210227243A1
公开(公告)日：2021-07-22
申请号：US17221184
申请日：2021-04-02
Inventor： Feng WU , Ning YAN , Dong LIU , Houqiang LI , Haitao YANG
IPC: H04N19/51 , H04N19/176 , H04N19/42 , H04N19/80
Abstract: Embodiments of this application disclose an interpolation filter training method and apparatus, a video picture encoding and decoding method, an encoder, and a decoder. According to the training method, a first sub-pixel picture obtained through interpolation by using a conventional interpolation filter is used as label data, to train a second interpolation filter, so that the second interpolation filter obtained through training can be directly used for a pixel value, obtained through interpolation, of a first fractional pixel position. Therefore, the label data is more accurate, and coding performance of a video picture is improved. According to the encoding method, during inter prediction, a target interpolation filter used for a current encoding picture block is determined from a set of candidate interpolation filters, and the encoder selects, according to content of the current encoding picture block, an appropriate interpolation filter to perform an interpolation operation.
-
公开(公告)号：US20210092364A1
公开(公告)日：2021-03-25
申请号：US17114329
申请日：2020-12-07
Inventor： Zhuoyi LV , Li LI , Houqiang LI , Haitao YANG
IPC: H04N19/105 , H04N19/54 , H04N19/527 , H04N19/176 , H04N19/139 , H04N19/172 , H04N19/52
Abstract: An image prediction method and device are disclosed. The method includes: obtaining a first reference unit of an image unit, where respective predicted images are obtained for the image unit and the first reference unit by using a same affine model; obtaining motion information of basic motion compensation units at two or more preset positions in the first reference unit; and obtaining motion information of a basic motion compensation unit of the image unit according to the motion information. In this way, motion information of the first reference unit using a same affine motion prediction model is reused, and a more accurate motion vector of a current image unit is obtained, improving prediction accuracy and maintaining encoding and decoding complexity, thereby improving encoding and decoding performance.
-
Patent Agency Ranking
公开(公告)号：US20190268608A1
公开(公告)日：2019-08-29
申请号：US16289250
申请日：2019-02-28
Inventor： Xiang MA , Haitao YANG , Li LI , Houqiang LI
IPC: H04N19/167 , H04N19/513 , H04N19/59 , H04N19/105 , H04N19/176
Abstract: Embodiments of the present invention provide a motion compensating prediction method and a motion compensating prediction apparatus. The motion compensating prediction method includes: determining a location of an initial reference pixel of a current pixel in a reference image, where the current pixel is located in a first sub-image of a current image; when the initial reference pixel is located outside a second sub-image that is in the reference image and that is at a location corresponding to the first sub-image, determining a location of a target reference pixel of the current pixel in the reference image based on the location of the initial reference pixel; and determining a predicted value of a pixel value of the current pixel based on a pixel value of the target reference pixel and/or a pixel value of a pixel near the target reference pixel.
-
14.发明申请公开(公告)号：US20190141323A1
公开(公告)日：2019-05-09
申请号：US16220749
申请日：2018-12-14
Inventor： Haitao YANG , Li LI , Houqiang LI
IPC: H04N19/119 , H04N19/44 , H04N19/59 , H04N19/80 , H04N19/33
Abstract: A video image decoding method includes: parsing a high-resolution image bitstream, to generate a reconstructed image of a first-type sub-image and auxiliary information of the first-type sub-image, where the auxiliary information represents dimension information of the sub-image and position information of the sub-image in a to-be-reconstructed image, the sub-image is a pixel set of any continuous area in the to-be-reconstructed image, and sub-images of the to-be-reconstructed image do not overlap with each other; when a complete reconstructed image fails to be obtained based on the reconstructed image of the first-type sub-image, parsing a low-resolution image bitstream, to generate a reconstructed image of a second-type sub-image, where the second-type sub-image has a resolution the same as that of the first-type sub-image; and splicing the reconstructed image of the first-type sub-image and the reconstructed image of the second-type sub-image based on the auxiliary information, to generate the reconstructed image.
-
公开(公告)号：US20190098312A1
公开(公告)日：2019-03-28
申请号：US16197585
申请日：2018-11-21
Inventor： Huanbang CHEN , Haitao YANG , Houqiang LI
IPC: H04N19/139 , H04N19/184 , H04N19/513
Abstract: An image prediction method and a related apparatus are disclosed. The method includes: parsing first bitstream information, used for indicating a motion information unit, to obtain motion information of each first pixel sample and predicted motion information of each second pixel sample; parsing second bitstream information, used for representing differential motion information of each second pixel sample, to obtain motion information of each second pixel sample; and obtaining a predictor of a current image block based on a motion model of the current image block, the motion information of the first pixel sample, and the motion information of the second pixel sample.
-
公开(公告)号：US20160007020A1
公开(公告)日：2016-01-07
申请号：US14839626
申请日：2015-08-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Haitao YANG , Bin LI , Houqiang LI , Jiantong ZHOU
IPC: H04N19/11 , H04N19/186 , H04N19/46 , H04N19/176 , H04N19/44 , H04N19/593
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.
-
公开(公告)号：US20140341282A1
公开(公告)日：2014-11-20
申请号：US14317040
申请日：2014-06-27
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Haitao YANG , Bin LI , Houqiang LI , Jiantong ZHOU
IPC: H04N19/593
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。
-
-
-
-
-
-
Search Results
17
records
(took 0.024 seconds)
