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公开(公告)号：US12132888B2
公开(公告)日：2024-10-29
申请号：US18083919
申请日：2022-12-19
发明人： Jizheng Xu , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC分类号： H04N19/105 , H04N19/132 , H04N19/157 , H04N19/169 , H04N19/176 , H04N19/423
CPC分类号： H04N19/105 , H04N19/132 , H04N19/157 , H04N19/176 , H04N19/1883 , H04N19/423
摘要： A method of visual media processing method includes performing a conversion between a current video block of a current picture of a visual media data and a bitstream representation of the visual media data. The conversion is based on a reference region from the current picture comprising reference samples used for deriving a prediction block of the current video block. A virtual buffer of a defined size is used for tracking availability of the reference samples for deriving the prediction block.
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公开(公告)号：US20240340430A1
公开(公告)日：2024-10-10
申请号：US18749830
申请日：2024-06-21
发明人： Yashwant Dutt , Kumar Desappan , Piyali Goswami
IPC分类号： H04N19/167 , H04N19/103 , H04N19/124 , H04N19/157 , H04N19/176
CPC分类号： H04N19/167 , H04N19/103 , H04N19/124 , H04N19/157 , H04N19/176
摘要： Several methods and systems for masking multimedia data are disclosed. In an embodiment, a method for masking includes performing a prediction for at least one multimedia data block based on a prediction mode of a plurality of prediction modes. The at least one multimedia data block is associated with a region of interest (ROI). A residual multimedia data associated with the at least one multimedia data block is generated based on the prediction. A quantization of the residual multimedia data is performed based on a quantization parameter (QP) value. The QP value is variable such that varying the QP value controls a degree of masking of the ROI.
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公开(公告)号：US12113995B2
公开(公告)日：2024-10-08
申请号：US17714024
申请日：2022-04-05
申请人： Lemon Inc.
IPC分类号： H04N19/436 , H04N19/124 , H04N19/132 , H04N19/157 , H04N19/70 , H04N19/82
CPC分类号： H04N19/436 , H04N19/124 , H04N19/132 , H04N19/157 , H04N19/70 , H04N19/82
摘要： A method of processing video data. The method includes determining that a supplemental enhancement information (SEI) message of a bitstream includes indicators specifying one or more neural network (NN) filter model candidates or selections for a video unit or samples within the video unit, and converting between a video media file comprising the video unit and the bitstream based on the indicators. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.
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公开(公告)号：US20240333971A1
公开(公告)日：2024-10-03
申请号：US18742619
申请日：2024-06-13
申请人： LG Electronics Inc.
发明人： Jaehyun LIM , Byeongmoon JEON , Seungwook PARK , Jaewon SUNG , Jungsun KIM , Yongjoon JEON , Joonyoung PARK , Younghee CHOI
IPC分类号： H04N19/593 , G06V10/20 , H04N19/11 , H04N19/14 , H04N19/157 , H04N19/182 , H04N19/44 , H04N19/50 , H04N19/80 , H04N19/82
CPC分类号： H04N19/593 , G06V10/20 , H04N19/11 , H04N19/14 , H04N19/157 , H04N19/182 , H04N19/44 , H04N19/50 , H04N19/80 , H04N19/82
摘要： New intra planar modes are introduced for predicting digital video data. As part of the new intra planar modes, various methods are offered for predicting a first sample within a prediction unit, where the first sample is needed for referencing to when processing the new intra planar modes. And once the first sample is successfully predicted, the new intra planar modes are able to predict a sample of video data within the prediction unit by processing a bi-linear interpolation of four previously reconstructed reference samples.
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公开(公告)号：US12108042B2
公开(公告)日：2024-10-01
申请号：US18144073
申请日：2023-05-05
申请人： GENSQUARE LLC
发明人： Soo Mi Oh , Moonock Yang
IPC分类号： H04N19/119 , H04N19/11 , H04N19/117 , H04N19/122 , H04N19/124 , H04N19/129 , H04N19/13 , H04N19/157 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/593 , H04N19/82
CPC分类号： H04N19/124 , H04N19/11 , H04N19/117 , H04N19/122 , H04N19/129 , H04N19/13 , H04N19/157 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/593 , H04N19/82 , H04N19/119
摘要： An apparatus of decoding video data can include a prediction mode decoding module to derive a luma intra prediction mode and a chroma intra prediction mode; a prediction size determining module to determine a size of a luma transform unit and a size of a chroma transform unit using transform size information; a reference pixel generating module to generate referential pixels if at least one reference pixel is unavailable; and a reference pixel filtering module adaptively filter the reference pixels of a current luma block based on the luma intra prediction mode and the size of the luma transform unit. The apparatus can further include a prediction block generating module to generate prediction blocks of the current luma block and the current chroma block; and a residual bock generating module to generate residual blocks of the current luma block and the current chroma block.
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公开(公告)号：US20240314349A1
公开(公告)日：2024-09-19
申请号：US18671886
申请日：2024-05-22
发明人： Zhipin DENG , Li ZHANG , Kai ZHANG , Yuwen HE
IPC分类号： H04N19/52 , H04N19/139 , H04N19/157 , H04N19/176 , H04N19/44 , H04N19/70
CPC分类号： H04N19/52 , H04N19/139 , H04N19/157 , H04N19/176 , H04N19/44 , H04N19/70
摘要： Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: applying, during a conversion between a target block of a video and a bitstream of the target block, a process of at least one of: a decoder side motion vector refinement (DMVR) or a DMVR variant to the target block that is coded with a target mode; and performing the conversion based on the process of at least one of: the DMVR or the DMVR variant.
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公开(公告)号：US12095995B2
公开(公告)日：2024-09-17
申请号：US17891800
申请日：2022-08-19
发明人： Kai Zhang , Li Zhang , Ye-kui Wang , Zhipin Deng , Kui Fan , Jizheng Xu , Hongbin Liu
IPC分类号： H04N19/103 , H04N19/119 , H04N19/129 , H04N19/157 , H04N19/169 , H04N19/172 , H04N19/174 , H04N19/70
CPC分类号： H04N19/129 , H04N19/103 , H04N19/119 , H04N19/157 , H04N19/172 , H04N19/174 , H04N19/1883 , H04N19/70
摘要： Techniques for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video picture that includes one or more tiles and one or more rectangular slices and a bitstream of the video according to a rule. The rule specifies that, for iteratively determining information about the one or more rectangular slices, a variable indicating a tile index is updated only for slices having indices that are smaller than a value equal to a number of slices in the video picture minus 1.
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公开(公告)号：US12088824B2
公开(公告)日：2024-09-10
申请号：US17620994
申请日：2020-06-26
申请人： S.A. VITEC
IPC分类号： H04N19/157 , H04N19/103 , H04N19/136 , H04N19/463
CPC分类号： H04N19/157 , H04N19/103 , H04N19/136 , H04N19/463
摘要： A method for decoding a bitstream comprising a sequence of encoded images. The method includes: obtaining first information from first encoded data contained in the bitstream; determining a list of coding parameters on the basis of the first information and of at least one predefined list of coding parameters; obtaining second information from second encoded data contained in the bitstream, the second information corresponding to a coding parameter among the coding parameters in the list of coding parameters; determining an element of a reconstructed image corresponding to an element of an image in the sequence of images, by means of the coding parameter corresponding to the second information and of encoded data representative of the element of the image in the sequence; wherein the size of the second encoded data depends on the number of coding parameters in the list of coding parameters.
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公开(公告)号：US20240291989A1
公开(公告)日：2024-08-29
申请号：US18653636
申请日：2024-05-02
申请人： Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： Hui Yong KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Gwang Hoon PARK , Kyung Yong KIM
IPC分类号： H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
CPC分类号： H04N19/129 , H04N19/119 , H04N19/122 , H04N19/124 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/593 , H04N19/61 , H04N19/625 , H04N19/70
摘要： A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
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公开(公告)号：US12075088B2
公开(公告)日：2024-08-27
申请号：US17470445
申请日：2021-09-09
IPC分类号： H04N19/577 , H04N19/105 , H04N19/119 , H04N19/13 , H04N19/157 , H04N19/159 , H04N19/44 , H04N19/463 , H04N19/52 , H04N19/96
CPC分类号： H04N19/577 , H04N19/105 , H04N19/119 , H04N19/13 , H04N19/157 , H04N19/159 , H04N19/44 , H04N19/463 , H04N19/52 , H04N19/96
摘要： To achieve a reduction in the amount of coding taken in the use of an asymmetric partition and to implement efficient encoding/decoding processes exploiting the characteristics of the asymmetric partition. An image decoding device includes a motion compensation parameter derivation unit configured to derive a motion compensation parameter indicating either a uni-prediction scheme or a bi-prediction scheme. In a case that a prediction unit has a size less than or equal to a predetermined value, the motion compensation parameter derivation unit is configured to derive the motion compensation parameter by switching between the prediction schemes.
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