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公开(公告)号：US11323706B2
公开(公告)日：2022-05-03
申请号：US17144747
申请日：2021-01-08
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/117 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/59
Abstract: A method, a device, and a computer program product, for aspect-ratio dependent filtering for intra-prediction include obtaining an aspect ratio of a block to be predicted, wherein the aspect ratio is based on a width of the block and a height of the block, and selecting an interpolation filter for the block to be predicted based on the aspect ratio of the block to be predicted.
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公开(公告)号：US20220124343A1
公开(公告)日：2022-04-21
申请号：US17531144
申请日：2021-11-19
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/139 , H04N19/105 , H04N19/176 , H04N19/117 , H04N19/196
Abstract: The present disclosure provides a method and apparatus for Local Illumination Compensation (LIC) for inter-prediction that uses a MinMax method to derive linear model parameters for the LIC. Values of parameters α and β for the linear model of the LIC are derived, based on reconstructed neighboring samples of the current block and reconstructed neighboring samples of the reference block. When a condition for the value of β is met, the value of α is clipped based on the value of β and the value of β is updated based on the clipped value of α before updating the inter-predicted sample values for the current block.
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Patent Agency Ranking
公开(公告)号：US20210266603A1
公开(公告)日：2021-08-26
申请号：US17313684
申请日：2021-05-06
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/70 , H04N19/593 , H04N19/625 , H04N19/86 , H04N19/176 , H04N19/174 , H04N19/80 , H04N19/30
Abstract: A method includes obtaining a first control parameter in a sequence parameter set (SPS) level, wherein a first value of the first control parameter in the SPS level indicates that a smoothing is not applied for any block of a sequence, a second value of the first control parameter in the SPS level indicates that the smoothing is applied for each block of the sequence, and obtaining a second control parameter in a slice header when a third value of the first control parameter in the SPS level is equal to a predefined value, wherein a first value of the second control parameter indicates that the smoothing is applied for each block of a slice.
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公开(公告)号：US20210120237A1
公开(公告)日：2021-04-22
申请号：US17135246
申请日：2020-12-28
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/11 , H04N19/105 , H04N19/176 , H04N19/82
Abstract: A device is configured to select a directional intra-prediction mode from a set of directional intra-prediction modes, wherein each directional intra-prediction mode corresponds to a different intra-prediction angle. Further, the device is configured to select a filter from a set of filters based on the selected directional intra-prediction mode. Further, the device is configured to determine, for a given prediction sample of the prediction block, a reference sample from a set of reference samples based on the selected directional intra-prediction mode, and apply the selected filter to the determined reference sample.
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公开(公告)号：US10958913B2
公开(公告)日：2021-03-23
申请号：US16735231
申请日：2020-01-06
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/159 , H04N19/105 , H04N19/132 , H04N19/176 , G06F17/18
Abstract: A video coding block is intra-predicted on the basis of a plurality of primary reference samples from a first set of neighboring video coding blocks. A fitting plane is determined on the basis of the plurality of primary reference samples and defines a plurality of fitting samples. For a selected directional intra prediction mode, a plurality of secondary reference samples are generated on the basis of the plurality of primary reference samples and the plurality of fitting samples. The secondary reference samples are located in a second set of neighboring video coding blocks. The sample values of the current video coding block are predicted on the basis of the plurality of primary reference sample values and the plurality of secondary reference sample values.
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公开(公告)号：US20200275128A1
公开(公告)日：2020-08-27
申请号：US16871247
申请日：2020-05-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04N19/65 , H04N19/14 , H04N19/182 , H04N19/82 , H04N19/147 , H04N19/117 , H04N19/196 , H04N19/172
Abstract: A method and apparatus for adaptively processing video samples in a video signal frame, the video samples being arranged in a Largest Coding Unit. The method comprises extracting a plurality of video samples from the Largest Coding Unit, calculating a correction offset for a first video sample of the extracted plurality of video samples upon the basis of a first value of the first video sample and a second value of a second video sample of the extracted plurality of video samples, and weighting the first video sample with the correction offset.
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97.发明申请METHOD AND APPARATUS FOR ADAPTIVELY PROCESSING VIDEO SAMPLES IN A VIDEO SIGNAL FRAME 审中-公开用于在视频信号帧中自适应处理视频样本的方法和装置公开(公告)号：US20160080776A1
公开(公告)日：2016-03-17
申请号：US14950742
申请日：2015-11-24
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/65 , H04N19/14 , H04N19/172
CPC classification number: H04N19/65 , H04N19/117 , H04N19/14 , H04N19/147 , H04N19/172 , H04N19/182 , H04N19/198 , H04N19/82
Abstract: A method and apparatus for adaptively processing video samples in a video signal frame, the video samples being arranged in a Largest Coding Unit. The method comprises extracting a plurality of video samples from the Largest Coding Unit, calculating a correction offset for a first video sample of the extracted plurality of video samples upon the basis of a first value of the first video sample and a second value of a second video sample of the extracted plurality of video samples, and weighting the first video sample with the correction offset.
Abstract translation: 一种用于在视频信号帧中自适应处理视频样本的方法和装置，视频样本被布置在最大编码单元中。 该方法包括从最大编码单元提取多个视频样本，基于第一视频样本的第一值和第二视频样本的第二值来计算所提取的多个视频样本中的第一视频样本的校正偏移量 提取的多个视频样本的视频样本，并且对具有校正偏移的第一视频样本进行加权。
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