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公开(公告)号：US12192449B2
公开(公告)日：2025-01-07
申请号：US18624948
申请日：2024-04-02
Inventor： Zhuoyi Lv , Li Li , Houqiang Li , Haitao Yang
IPC: H04N19/105 , H04N19/139 , H04N19/172 , H04N19/176 , H04N19/52 , H04N19/527 , H04N19/54
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 of 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.
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公开(公告)号：US11968376B2
公开(公告)日：2024-04-23
申请号：US17217808
申请日：2021-03-30
Inventor： Feng Wu , Fangdong Chen , Houqiang Li , Zhuoyi Lv , Haitao Yang
IPC: H04N19/176 , H04N19/179 , H04N19/46 , H04N19/55 , H04N19/573 , H04N19/58 , H04N19/61 , H04N19/91
CPC classification number: H04N19/176 , H04N19/179 , H04N19/46 , H04N19/55 , H04N19/573 , H04N19/58 , H04N19/61 , H04N19/91
Abstract: The present disclosure provides a reference image encoding method, including: encoding sequence, to obtain a reconstructed image of a first and second reference images; determining whether a local area in the second reference image is suitable for updating first reference image; determining whether the first reference image is updated; when the first reference image is not updated, and it is determined the second reference image is suitable for updating the first reference image, replacing a pixel value of a corresponding area or a related area in the first reference image with a pixel value of the local area in the second reference image; and compiling, into the bitstream.
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公开(公告)号：US10979722B2
公开(公告)日：2021-04-13
申请号：US15861218
申请日：2018-01-03
Inventor： Feng Wu , Fangdong Chen , Houqiang Li , Zhuoyi Lv , Haitao Yang
IPC: H04N19/573 , H04N19/176 , H04N19/46 , H04N19/58 , H04N19/179 , H04N19/55 , H04N19/61 , H04N19/91
Abstract: A reference image encoding method is provided, including: encoding sequence, to obtain a reconstructed image of a first and second reference images; determining whether a local area in the second reference image is suitable for updating first reference image; determining whether the first reference image is updated; when the first reference image is not updated, and it is determined the second reference image is suitable for updating the first reference image, replacing a pixel value of a corresponding area or a related area in the first reference image with a pixel value of the local area in the second reference image; and compiling, into the bitstream.
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公开(公告)号：US20160294711A1
公开(公告)日：2016-10-06
申请号：US15177751
申请日：2016-06-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhuoyi Lv , Jiantong Zhou , Jiali Fu , Haitao Yang
IPC: H04L12/825 , H04L29/06
CPC classification number: H04L47/25 , H04L65/601 , H04N21/23439 , H04N21/25808 , H04N21/26258 , H04N21/44209 , H04N21/4621 , H04N21/8456
Abstract: Embodiments of the present invention disclose a method and an apparatus for acquiring a video bitstream, and relate to the field of information technologies, which can improve network bandwidth utilization. The method includes: firstly, acquiring, by a terminal, a minimum bit rate corresponding to a parameter of the terminal; then, sending, by the terminal, a video bitstream acquiring request to a server, and when receiving the video bitstream acquiring request sent by the terminal, sending, by the server, an MPD to the terminal; and finally, receiving, by the terminal, the MPD sent by the server, and acquiring a video bitstream according to the MPD and the minimum bit rate. The embodiments of the present invention are applicable to a case in which a user downloads video data by using a terminal.
Abstract translation: 本发明的实施例公开了一种用于获取视频比特流的方法和装置，并且涉及可以提高网络带宽利用率的信息技术领域。 该方法包括：首先，通过终端获取与终端的参数对应的最小比特率; 然后，通过终端向服务器发送视频比特流获取请求，并且当接收到由终端发送的视频比特流获取请求时，由服务器向终端发送MPD; 最后由终端接收由服务器发送的MPD，并根据MPD和最小比特率获取视频比特流。 本发明的实施例可应用于用户通过使用终端来下载视频数据的情况。
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公开(公告)号：US20240333913A1
公开(公告)日：2024-10-03
申请号：US18624948
申请日：2024-04-02
Inventor： Zhuoyi Lv , Li Li , Houqiang Li , Haitao Yang
IPC: H04N19/105 , H04N19/139 , H04N19/172 , H04N19/176 , H04N19/52 , H04N19/527 , H04N19/54
CPC classification number: H04N19/105 , H04N19/139 , H04N19/172 , H04N19/176 , H04N19/52 , H04N19/527 , H04N19/54
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 of 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.
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Patent Agency Ranking
公开(公告)号：US10404606B2
公开(公告)日：2019-09-03
申请号：US15177751
申请日：2016-06-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhuoyi Lv , Jiantong Zhou , Jiali Fu , Haitao Yang
IPC: H04L12/825 , H04N21/258 , H04N21/262 , H04N21/442 , H04N21/845 , H04N21/2343 , H04N21/462 , H04L29/06
Abstract: Embodiments of the present invention disclose a method and an apparatus for acquiring a video bitstream, and relate to the field of information technologies, which can improve network bandwidth utilization. The method includes: firstly, acquiring, by a terminal, a minimum bit rate corresponding to a parameter of the terminal; then, sending, by the terminal, a video bitstream acquiring request to a server, and when receiving the video bitstream acquiring request sent by the terminal, sending, by the server, an MPD to the terminal; and finally, receiving, by the terminal, the MPD sent by the server, and acquiring a video bitstream according to the MPD and the minimum bit rate. The embodiments of the present invention are applicable to a case in which a user downloads video data by using a terminal.
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公开(公告)号：US10827194B2
公开(公告)日：2020-11-03
申请号：US15461274
申请日：2017-03-16
Inventor： Li Li , Houqiang Li , Zhuoyi Lv , Sixin Lin
IPC: H04N19/513 , H04N19/176 , H04N19/54 , H04N19/182 , H04N19/51 , H04N19/593
Abstract: A picture prediction method and a related apparatus are disclosed. The picture prediction method includes: determining motion vector predictors of K pixel samples in a current picture block, where K is an integer greater than 1, the K pixel samples include a first vertex angle pixel sample in the current picture block, a motion vector predictor of the first vertex angle pixel sample is obtained based on a motion vector of a preset first spatially adjacent picture block of the current picture block, and the first spatially adjacent picture block is spatially adjacent to the first vertex angle pixel sample; and performing, based on a non-translational motion model and the motion vector predictors of the K pixel samples, pixel value prediction on the current picture block. Solutions in the embodiments of the present application are helpful in reducing calculation complexity of picture prediction based on a non-translational motion model.
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8.发明授权公开(公告)号：US10523965B2
公开(公告)日：2019-12-31
申请号：US15860531
申请日：2018-01-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhao Wang , Siwei Ma , Zhuoyi Lv , Haitao Yang
IPC: H04N19/56 , H04N19/523 , H04N19/182
Abstract: Embodiments of the present disclosure disclose a video coding method which includes: obtaining a current picture, motion vector precision of the current picture according to the current picture, where the motion vector precision includes a search step size set, and each search step size in the search step size set is less than a pixel unit; obtaining a current block and a reference picture of the current block; determining a search start point in the reference picture, and searching, from the search start point, for a target integer pixel by using a pixel unit as a search step size; searching, from the target integer pixel, for a match block of the current block according to the motion vector precision; obtaining motion vector information and a prediction residual signal; and the reference picture, the motion vector information, and the prediction residual signal into a bitstream.
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9.发明申请公开(公告)号：US20180131960A1
公开(公告)日：2018-05-10
申请号：US15860531
申请日：2018-01-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhao Wang , Siwei Ma , Zhuoyi Lv , Haitao Yang
IPC: H04N19/56 , H04N19/523
CPC classification number: H04N19/56 , H04N19/109 , H04N19/136 , H04N19/139 , H04N19/14 , H04N19/182 , H04N19/523 , H04N19/533 , H04N19/57
Abstract: Embodiments of the present disclosure disclose a video coding method which includes: obtaining a current picture, motion vector precision of the current picture according to the current picture, where the motion vector precision includes a search step size set, and each search step size in the search step size set is less than a pixel unit; obtaining a current block and a reference picture of the current block; determining a search start point in the reference picture, and searching, from the search start point, for a target integer pixel by using a pixel unit as a search step size; searching, from the target integer pixel, for a match block of the current block according to the motion vector precision; obtaining motion vector information and a prediction residual signal; and the reference picture, the motion vector information, and the prediction residual signal into a bitstream.
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公开(公告)号：US11979559B2
公开(公告)日：2024-05-07
申请号：US17827398
申请日：2022-05-27
Inventor： Zhuoyi Lv , Li Li , Houqiang Li , Haitao Yang
IPC: H04N19/105 , H04N19/139 , H04N19/172 , H04N19/176 , H04N19/52 , H04N19/527 , H04N19/54
CPC classification number: H04N19/105 , H04N19/139 , H04N19/172 , H04N19/176 , H04N19/52 , H04N19/527 , H04N19/54
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.
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