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公开(公告)号：US12069294B2
公开(公告)日：2024-08-20
申请号：US17994556
申请日：2022-11-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiang Ma , Haitao Yang , Huanbang Chen , Shan Gao
IPC: H04N19/52 , H04N19/176 , H04N19/182
CPC classification number: H04N19/52 , H04N19/176 , H04N19/182
Abstract: A picture prediction method is provided, which includes: obtaining initial motion information of a current picture block; determining, based on a matching cost criterion, that positions of a pair of reference blocks are a position of a target forward reference block of the current picture block and a position of a target backward reference block of the current picture block, where positions of each pair of reference blocks include a position of a forward reference block and a position of a backward reference block; and for the positions of each pair of reference blocks, a first position offset and a second position offset are in a mirror relationship; and obtaining a predicted value of a pixel value of the current picture block based on a pixel value of the target forward reference block and a pixel value of the target backward reference block.
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公开(公告)号：US20220394270A1
公开(公告)日：2022-12-08
申请号：US17832871
申请日：2022-06-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huanbang Chen , Shan Gao , Haitao Yang
IPC: H04N19/137 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: A video data inter prediction method is provided, which includes: determining a candidate motion information list of a current picture block, where the candidate motion information list includes at least one first candidate motion information group, at least one second candidate motion information group, the first candidate motion information group is a motion information group determined based on motion information of preset locations on a first neighboring picture block of the current picture block and a motion model of the first neighboring picture block, the second candidate motion information group is a set of motion information of at least two sample locations that are respectively neighboring to at least two preset locations on the current picture block; determining target motion information from the candidate motion information list; and performing inter prediction on the current picture block based on the target motion information.
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公开(公告)号：US11310524B2
公开(公告)日：2022-04-19
申请号：US16858222
申请日：2020-04-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huanbang Chen , Haitao Yang , Shan Gao , Jiantong Zhou , Shan Liu
Abstract: A method includes obtaining a first motion vector of a motion compensation unit included in an affine code block. The method also includes determining a second motion vector based on the first motion vector, where a precision of the second motion vector matches a motion vector precision of a storage unit corresponding to the motion compensation unit. The method further includes determining a third motion vector based on the second motion vector, where there is a preset correspondence between the third motion vector and the second motion vector, and the third motion vector is used for subsequent encoding/decoding processing.
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公开(公告)号：US20200351500A1
公开(公告)日：2020-11-05
申请号：US16929979
申请日：2020-07-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiali Fu , Yin Zhao , Shan Gao , Huanbang Chen , Haitao Yang , Jianle Chen
IPC: H04N19/122 , H04N19/119 , H04N19/61 , H04N19/159
Abstract: A video coding mechanism is disclosed. The mechanism includes selecting a split mechanism to split a coding unit (CU) into sub-CUs for application of one or more transform units (TUs), the selection of the split mechanism based on comparing a CU width to a max TU width and comparing a CU height to a max TU height. The selected split mechanism is applied to the CU to obtain sub-CUs. A residual of one of the sub-CUs is determined. The residual includes a difference between sample values for the sub-CU and prediction samples for the sub-CU. The TUs are applied to transform the residual of the CU based on results of the selected split mechanism. A transformed residual for the CU is encoded into a bitstream.
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公开(公告)号：US10045051B2
公开(公告)日：2018-08-07
申请号：US14539423
申请日：2014-11-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lina Sun , Shan Gao , Fuzheng Yang
IPC: H04N19/86 , H04N19/85 , H04N19/124 , H04N19/154 , H04N17/00
Abstract: Embodiments of the present invention provide a method and an apparatus for assessing video quality. The method includes: determining an actual quantization parameter and a critical quantization parameter of the target video according to a target video, where the critical quantization parameter is a maximum quantization parameter of the target video in a case in which a distortion is not evidently identifiable by human eyes; and determining quality of the target video according to the actual quantization parameter and the critical quantization parameter. According to the method and apparatus of the present invention, a critical quantization parameter of a target video is determined, and the actual quantization parameter is compared with the critical quantization parameter, which can accurately determine whether subjective quality of the target video changes strictly monotonically relative to the used actual quantization parameter, so that the video quality can be assessed accurately.
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Patent Agency Ranking
公开(公告)号：US10003999B2
公开(公告)日：2018-06-19
申请号：US15248603
申请日：2016-08-26
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L12/58 , H04W28/14 , H04L29/08 , H04L12/26 , H04W28/02 , H04N21/6587 , H04L12/835 , H04L12/931 , H04L29/06
CPC classification number: H04W28/14 , H04L29/08 , H04L43/16 , H04L47/30 , H04L49/355 , H04L65/4084 , H04L65/608 , H04L65/80 , H04L69/16 , H04N21/44004 , H04N21/6125 , H04N21/6587 , H04W28/0278
Abstract: A Hypertext Transfer Protocol (HTTP)-based buffer status updating method, device and a buffer status processor are provided, where the method includes, receiving an HTTP request from a terminal, triggering a buffer event according to the HTTP request, where the buffer event includes seek, pause, resume, and stream switch, and the method further includes updating a buffer status according to the buffer event, where the buffer status includes a normal play state, a play paused state, a re-buffering state, and a stream switch state. Hence, the buffer status is updated based on the buffer event in a manner of analyzing only an HTTP Protocol field such that a buffer model is closer to a real client buffer situation.
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公开(公告)号：US09704261B2
公开(公告)日：2017-07-11
申请号：US14941475
申请日：2015-11-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Mengqi Ji , Shan Gao , Haiyan Yang
CPC classification number: G06T7/11 , G06K9/38 , G06K9/62 , G06K9/6277 , G06T7/136 , G06T7/143 , G06T7/194 , G06T2207/10024
Abstract: Embodiments of the present invention provide an image processing method and apparatus, where the method includes: determining a Gaussian mixture model of a first area in a first image, where the first area belongs to a background area of the first image, and the first image is a first frame of image in a video; determining a distance from a first pixel in a second image to the Gaussian mixture model; and when the distance from the first pixel to the Gaussian mixture model is less than or equal to a first preset threshold, determining that the first pixel belongs to a background area of the second image. In the embodiments of the present invention, an area to which a pixel belongs can be directly determined according to a distance from the pixel to a Gaussian mixture model, so that image foreground segmentation can be completed efficiently.
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公开(公告)号：US09402074B2
公开(公告)日：2016-07-26
申请号：US14570992
申请日：2014-12-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shan Gao , Lina Sun , Qingpeng Xie
IPC: H04N17/00 , H04N19/154
CPC classification number: H04N17/004 , H04N19/154 , H04N21/2402
Abstract: Embodiments of the present invention provide a multimedia quality monitoring method, and a device. The method includes: determining reference quality of multimedia according to reference video quality and reference audio quality of the multimedia; acquiring multimedia distortion quality after at least one of video distortion and audio distortion of the multimedia occurs; and determining quality of the multimedia according to the reference quality of the multimedia and the multimedia distortion quality. Therefore, accuracy of a multimedia quality monitoring result is improved.
Abstract translation: 本发明的实施例提供一种多媒体质量监测方法和装置。 该方法包括：根据多媒体的参考视频质量和参考音频质量确定多媒体的参考质量; 在发生多媒体视频失真和音频失真中的至少一个后，获取多媒体失真质量; 并根据多媒体的参考质量和多媒体失真质量确定多媒体的质量。 因此，提高了多媒体质量监控结果的准确性。
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公开(公告)号：US09319670B2
公开(公告)日：2016-04-19
申请号：US13954168
申请日：2013-07-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lina Sun , Shan Gao , Qingpeng Xie
CPC classification number: H04N17/004 , H04N21/44008
Abstract: A video data quality assessment method and apparatus are disclosed. The video data quality assessment method includes: acquiring a compression distortion parameter of video data; acquiring a frame impairment distortion parameter/video data rebuffering parameter; and calculating a video quality parameter according to the compression distortion parameter and the frame impairment distortion parameter/video data rebuffering parameter, where the video quality parameter is a difference between the compression distortion parameter and the frame impairment distortion parameter/video data rebuffering parameter.
Abstract translation: 公开了一种视频数据质量评估方法和装置。 视频数据质量评估方法包括：获取视频数据的压缩失真参数; 获取帧损害失真参数/视频数据重排参数; 并且根据压缩失真参数和帧损害失真参数/视频数据重新接收参数来计算视频质量参数，其中视频质量参数是压缩失真参数和帧损害失真参数/视频数据重排参数之间的差异。
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公开(公告)号：US20230070633A1
公开(公告)日：2023-03-09
申请号：US18050030
申请日：2022-10-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H01L23/522 , H01L23/532 , H01L21/768
Abstract: An integrated circuit includes: a silicon substrate, and a redistribution layer located on the silicon substrate, where the redistribution layer includes metal routing and a dielectric layer of a first material. An isolation area that runs through the redistribution layer is disposed in the redistribution layer. The isolation area includes a second material. A porosity of the second material is less than a porosity of the first material. A via is disposed inside the isolation area, and the second material surrounds a part of the via. The second material may be a dense material, such that water vapor in the via can be effectively isolated.
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