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公开(公告)号：US20250168409A1
公开(公告)日：2025-05-22
申请号：US19029522
申请日：2025-01-17
Inventor： Xiaoyu Xiu , Yi-Wen Chen , Xianglin Wang , Shuiming Ye , Tsung-Chuan Ma , Hong-Jheng Jhu
IPC: H04N19/70 , H04N19/18 , H04N19/186 , H04N19/625 , H04N19/96
Abstract: A computing device performs a method of decoding video data by receiving, from a bitstream, a first syntax element associated with an SBT coding unit that indicates that there exists at least one non-zero transform coefficient in the SBT coding unit; determining a first transform unit that includes non-zero transform coefficients; receiving a second syntax element associated with a first chroma component of the first transform unit, a third syntax element associated with a second chroma component, and a fourth syntax element associated with luma component of the first transform unit; decoding the transform coefficients of chroma and luma components of the first transform unit, based on the second, third and fourth syntax elements; and setting transform coefficients of luma and chroma components of rest of the plurality of transform units to zeros.
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公开(公告)号：US20250133208A1
公开(公告)日：2025-04-24
申请号：US19002378
申请日：2024-12-26
Inventor： Xiaoyu XIU , Yi-Wen CHEN , Tsung-Chuan MA , Hong-Jheng JHU , Xianglin WANG , Bing YU
IPC: H04N19/122 , H04N19/146 , H04N19/159 , H04N19/184 , H04N19/186 , H04N19/61 , H04N19/70
Abstract: An electronic apparatus performs a method of encoding video data. The method comprises: generating the video data corresponding to a coding unit, wherein the coding unit is coded by intra-prediction mode or inter-prediction mode; generating a first syntax element, wherein the first syntax element indicates whether the coding unit has been coded using adaptive color-space transform (ACT); transmitting the first syntax element to a decoding side, such that the decoding side, when determining from the first syntax element that the coding unit has been coded using the ACT, performs operations comprising: performing a clipping operation that confines a dynamic range of the residuals of the coding unit within a predefined range; and applying an inverse ACT to the residuals of the coding unit after the clipping operation.
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公开(公告)号：US12262029B2
公开(公告)日：2025-03-25
申请号：US17843868
申请日：2022-06-17
Inventor： Tsung-Chuan Ma , Xianglin Wang , Yi-Wen Chen , Xiaoyu Xiu , Hong-Jheng Jhu , Bing Yu
IPC: H04N19/186 , H04N19/117 , H04N19/172
Abstract: This application is directed to processing video data that includes a plurality of luma samples and a plurality of chroma samples corresponding to a plurality of pixel groups of a video frame. For each pixel group, an electronic device identifies a respective chroma sample and a set of luma samples and determines an anchor luma sample from the set of luma samples. A chroma refinement value is generated based on the set of luma samples by differencing a respective luminance value of each luma sample in the set by an anchor luminance value of the anchor luma sample and applying a cross component filter to the difference luminance values of the set of luma samples. The electronic device then updates the chroma sample using the chroma refinement value for each pixel group and stores the updated respective chroma sample of each pixel group in association with the video frame.
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公开(公告)号：US12262005B2
公开(公告)日：2025-03-25
申请号：US17751491
申请日：2022-05-23
Inventor： Yi-Wen Chen , Xiaoyu Xiu , Tsung-Chuan Ma , Hong-Jheng Jhu , Xianglin Wang , Bing Yu
IPC: H04N19/117 , H04N19/105 , H04N19/176 , H04N19/30 , H04N19/82
Abstract: An electronic apparatus performs a method of encoding and decoding video data. The method comprises: decoding a first coding block and a second coding block that shares a common edge on a first picture, wherein decoding the first coding block and the second coding block includes reconstructing a first residual block for the first coding block and a second residual block for the second coding block; determining that the first picture has a first resolution, a first reference picture corresponding to the first coding block has a second resolution, and a second reference picture corresponding to the second coding block has a third resolution; deriving a deblocking strength (bS) value based, at least in part, on the first resolution, second resolution, and the third resolution; and performing in-loop filtering on the reconstructed first residual block and the reconstructed second residual block using a deblocking filter in accordance with the derived bS value.
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公开(公告)号：US20250097513A1
公开(公告)日：2025-03-20
申请号：US18591582
申请日：2024-02-29
Inventor： Yu LIN
IPC: H04N21/431 , G06Q30/0601 , H04N21/2187 , H04N21/442 , H04N21/4725 , H04N21/478 , H04N21/8545
Abstract: Provided is a method for displaying object information. The method includes displaying, in response to an access operation on a target live-streaming room, a live-streaming interface of the target live-streaming room; and displaying a first object information display component and a second object information display component in the live-streaming interface. The component styles of the first object information display component and the second object information display component are different. The first object information display components is configured to display description information of a recommended object, the recommended object is an object currently recommended in the target live-streaming room, and the second object information display component is configured to display description information of an associated object.
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Patent Agency Ranking
公开(公告)号：US20250097434A1
公开(公告)日：2025-03-20
申请号：US18959260
申请日：2024-11-25
Inventor： Che-Wei KUO , Hong-Jheng JHU , Xiaoyu XIU , Ning YAN , Wei CHEN , Xianglin WANG , Bing YU
IPC: H04N19/176 , H04N19/117 , H04N19/186
Abstract: The present disclosure provides a method for decoding video data, comprising: obtaining a bitstream; obtaining an indication from the bitstream indicative of information related to a gradient linear model (GLM), wherein the GLM is used to obtain one or more filtered values based on intensity differences among luma samples; and decoding the video data based on the information related to the GLM.
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公开(公告)号：US12250411B2
公开(公告)日：2025-03-11
申请号：US17959479
申请日：2022-10-04
Inventor： Yi-Wen Chen , Xiaoyu Xiu , Tsung-Chuan Ma , Hong-Jheng Jhu , Wei Chen , Xianglin Wang , Bing Yu
IPC: H04N19/70 , H04N19/105 , H04N19/139 , H04N19/172 , H04N19/174 , H04N19/52 , H04N19/577
Abstract: Methods and apparatuses for video coding are provided. The method includes that a decoder determines whether a disable flag is present in a picture header (PH) associated with a picture, wherein the disable flag specifies whether a coding tool is disabled in one or more slices associated with the PH. Additionally, the method includes that the decoder infers value of the disable flag according to one or more enable flags signaled in a sequence parameter set (SPS) of the picture in response to determining that the disable flag is not present in the PH, inferring, by the decoder.
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公开(公告)号：US20250080764A1
公开(公告)日：2025-03-06
申请号：US18946757
申请日：2024-11-13
Inventor： Hong-Jheng JHU , Che-Wei KUO , Xiaoyu XIU , Ning YAN , Wei CHEN , Xianglin WANG , Bing YU
IPC: H04N19/44 , H04N19/132 , H04N19/176 , H04N19/186
Abstract: A method for video decoding is provided. The method includes obtaining, from a video bitstream, a coding unit in a current picture, wherein the coding unit comprises a luma block and at least one chroma block; and in response to a determination that reconstructed luma samples in the luma block are not to be down-sampled: determining one or more cross-component prediction models based on a luma filter, wherein the one or more cross-component prediction models comprise a convolutional cross-component model (CCCM); obtaining, based on the luma filter, at least one reconstructed luma sample in the luma block that corresponds to a chroma sample in the at least one chroma block; and applying at least one of the one or more cross-component prediction models to the at least one reconstructed luma sample to predict the chroma sample.
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公开(公告)号：US20250080742A1
公开(公告)日：2025-03-06
申请号：US18913430
申请日：2024-10-11
Inventor： Xiaoyu XIU , Yi-Wen CHEN , Tsung-Chuan MA , Hong-Jheng JHU , Wei CHEN , Xianglin WANG , Bing YU
IPC: H04N19/132 , H04N19/105 , H04N19/159 , H04N19/186
Abstract: Methods and devices are provided for reducing the decoding latency introduced by LMCS. In one method, during encoding of a coding unit (CU), a plurality of reconstructed luma samples is selected from a first pre-determined region neighboring to a second pre-determined region where the CU is located, an average of the plurality of reconstructed luma samples is calculated, and the average of the plurality of reconstructed luma samples is used directly, without any clipping, in deriving a chroma residual scaling factor, a bitstream comprising luma mapping with chroma scaling (LMCS) related information is formed.
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公开(公告)号：US12244804B2
公开(公告)日：2025-03-04
申请号：US17857849
申请日：2022-07-05
Inventor： Xiaoyu Xiu , Yi-Wen Chen , Tsung-Chuan Ma , Hong-Jheng Jhu , Xianglin Wang , Bing Yu
IPC: H04N19/122 , H04N19/146 , H04N19/156 , H04N19/159 , H04N19/184 , H04N19/186 , H04N19/61 , H04N19/70
Abstract: An electronic apparatus performs a method of coding video data. The method comprises: receiving, from the bitstream, the video data corresponding to a coding unit, wherein the coding unit is coded by intra-prediction mode or inter-prediction mode; receiving a first syntax element from the video data, wherein the first syntax element indicates whether the coding unit has been coded using adaptive color-space transform (ACT); processing the video data to generate residuals of the coding unit; in accordance with a determination based on the first syntax element that the coding unit has been coded using the ACT, performing a clipping operation that confines a dynamic range of the residuals of the coding unit within a predefined range; and applying an inverse ACT to the residuals of the coding unit after the clipping operation.
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