Patents by Inventor Li Zhang

Li Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Restriction of applicability for intra block copy mode
    Patent number: 12120313
    Abstract: A method for video processing is provided to include determining, for a conversion between a current video block of a video and a coded representation of the video, whether an intra block copy (IBC) mode in which a prediction block for the current video block is calculated based on a block vector in a picture that includes current video block is enabled based on a rule on a block dimension; and performing the conversion based on the determining.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: October 15, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Jizheng Xu, Yue Wang
  • N-heterocyclic five-membered ring-containing capsid protein assembly inhibitor, pharmaceutical composition thereof, and use thereof
    Patent number: 12116356
    Abstract: A N-heterocyclic five-membered ring-containing capsid protein assembly inhibitor, and a pharmaceutical composition and use thereof, specifically relating to a compound as represented by formula I, a stereoisomer, a tautomer, a geometrical isomer, a solvate, an active metabolite, a hydrate, a prodrug or a pharmaceutically acceptable salt thereof, a pharmaceutical composition thereof, and a medical use thereof. The medical use comprises the use in treating diseases benefiting from the capsid protein assembly inhibitor, and in particular, diseases caused by hepatitis B virus infection.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: October 15, 2024
    Assignee: CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Yinsheng Zhang, Wangwei Ao, Yuan Li, Hui Wang, Hangzhou Shen, Jie Ni, Huan Zhang, Jie Wu, Li Zhang, Kai Cao, Peng Lu, Xushi Liu, Jie Wang, Tianxiao Zhao, Xingfeng Ge, Dandan Lu, Shuo Chen, Xueqin Ma, Wei Shi, Xiaojin Wang, Hongjiang Xu
  • Constraints for usage of updated motion information
    Patent number: 12120340
    Abstract: Embodiments of the present disclosure relates to constraints for usage of updated motion information. A method for video processing is provided, including: determining original motion information associated with a current block; generating updated motion information based on specific prediction mode; and performing, based on the updated motion information, a conversion between the current block and a bitstream representation of a video data including the current block, wherein the specific prediction mode includes one or more of bi-directional optical flow (BIO) refinement, a decoder-side motion vector refinement (DMVR), frame-rate up conversion (FRUC) techniques or a template matching technique.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: October 15, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Yue Wang
  • Restriction on number of context coded bins
    Patent number: 12120300
    Abstract: Restrictions on number of context coded bins are described. A method for video processing includes applying, for a conversion between a video and a bitstream representation of the video, control on maximum number of context coded bins per predetermined unit which is associated with the video; and performing the conversion based on the control.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: October 15, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Li Zhang, Jizheng Xu, Kai Zhang, Hongbin Liu, Weijia Zhu
  • Motion candidate list construction using neighboring block information
    Patent number: 12120314
    Abstract: A visual media processing method includes determining, for a conversion between a first video block of a visual media data and a bitstream representation of the visual media data, an availability of a second video block of the visual media data using a rule; and performing the conversion based on the determining, wherein the rule is at least based on a coding mode used for coding the first video block into the bitstream representation, wherein the rule specifies disallowing motion information of the second video block from being used in a merge list construction of the first block by treating the second video block as unavailable.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: October 15, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • MOTION VECTOR DIFFERENCE FOR BLOCK WITH GEOMETRIC PARTITION
    Publication number: 20240340439
    Abstract: A method of video processing includes determining, for a conversion between a current video block of a video and a bitstream of the video, that the current video block is coded with a geometric partitioning mode. The method further includes deriving at least one refined motion vector (MV) for the current video block by adding at least one motion vector difference (MVD) of multiple MVDs signaled or derived for the current video block to a MV derived from a merge candidate associated with the current video block. The MV being associated with an offset distance and/or an offset direction. The method further includes performing the conversion based on the refined MV.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Zhipin Deng, Yue Wang
  • REFERENCE PICTURE RESAMPLING
    Publication number: 20240340459
    Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a current picture of a video and a bitstream of the video according to a rule. The rule specifies that a number of entries in a reference picture list of the current picture is greater than 0 in response to (1) one or more slices in the current picture being allowed to have a slice type other than an Intra (I) slice type, and (2) reference picture list (RPL) information being present in a picture header.
    Type: Application
    Filed: June 19, 2024
    Publication date: October 10, 2024
    Inventors: Zhipin Deng, Li Zhang, Ye-Kui Wang, Kai Zhang
  • METHOD, APPARATUS, AND MEDIUM FOR VIDEO PROCESSING
    Publication number: 20240340445
    Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a target video block of a video and a bitstream of the video, an affine prediction list of the target video block based on at least one of the following: a non-adjacent spatial candidate, or a temporal collocated candidate; and performing the conversion based on the affine prediction list.
    Type: Application
    Filed: June 7, 2024
    Publication date: October 10, 2024
    Inventors: Zhipin DENG, Kai ZHANG, Li ZHANG
  • RED PACKET RECEIVING AND SENDING METHOD AND ELECTRONIC DEVICE
    Publication number: 20240340370
    Abstract: A first interface comprising a call screen is displayed on an electronic device. First prompt information is displayed on the first interface following receiving information about a first red packet, the first prompt information provides a prompt to open the first red packet. Opening detail information of the first red packet is displayed on the first interface following an input for the first prompt information.
    Type: Application
    Filed: June 20, 2024
    Publication date: October 10, 2024
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yilun Wang, Kai Hu, Li Zhang, Yang Yu, Yuanyou Wei
  • METHOD, APPARATUS, AND MEDIUM FOR VIDEO PROCESSING
    Publication number: 20240340413
    Abstract: Embodiments of the disclosure provide a solution for video processing. A method for video processing is proposed. The method includes: determining, during a conversion between a video unit of a video and a bitstream of the video, a first reference area for intra block copy (IBC) of the video unit based on a second reference area for intra template matching, the video unit being applied with an IBC mode; determining a block vector for the video unit in the first reference area; and performing the conversion based on the block vector.
    Type: Application
    Filed: June 20, 2024
    Publication date: October 10, 2024
    Inventors: Jizheng XU, Li ZHANG
  • METHOD, APPARATUS, AND MEDIUM FOR VIDEO PROCESSING
    Publication number: 20240340429
    Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a target video block of a video and a bitstream of the video, a first motion vector candidate from a first direction of the target video block based on a motion vector refinement, the target video block being in a bi-prediction mode; and performing the conversion based at least in part on the first motion vector candidate.
    Type: Application
    Filed: June 18, 2024
    Publication date: October 10, 2024
    Inventors: Zhipin DENG, Kai ZHANG, Li ZHANG, Yang WANG
  • Adaptive resolution change and scalable coding for screen contents
    Patent number: 12113972
    Abstract: Adaptive resolution change and scalable coding for screen contents are described. One example is a method for video processing, comprising: determining, for a conversion between a picture or a video and a bitstream representation of the picture or the video, whether the picture or the video is native resolution based on an indication included in the bitstream representation; and performing the conversion based on the determination.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: October 8, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Jizheng Xu, Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Motion vector derivation between color components
    Patent number: 12113984
    Abstract: A method for video processing is provided to comprise: dividing a video block of a first color component to obtain a first set sub-blocks of the first color component; dividing a corresponding video block of a second color component to obtain a second set of sub-blocks of a second color component; deriving one or more motion vectors of the first set of sub-blocks based on one or more motion vectors of the second set of sub-blocks; and performing, based on the one or more motion vectors of the first set and second set of sub-blocks, a conversion between the video block and a coded representation of the video.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: October 8, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Implicit selection of transform candidates
    Patent number: 12114013
    Abstract: Devices, systems and methods for digital video coding, which includes using multiple transforms, are described. In a representative aspect, a method for video processing includes making a decision, based on one or more decoded coefficients and in an absence of one or more transform indices, regarding an application of a transform to a current block of a video, and performing, based on the decision, a conversion between the current block and a bitstream representation of the video.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: October 8, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Zhipin Deng, Yang Wang, Yue Wang
  • Intra video coding using multiple reference filters
    Patent number: 12114020
    Abstract: A video processing method is provided to include: determining, based on a rule, whether to use a 4-tap interpolation filter for a conversion between a current video block of a current video unit of a video and a coded representation of the video, wherein the current video block is coded using intra mode in the coded representation; and performing the conversion based on the determining.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: October 8, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Zhipin Deng, Li Zhang, Hongbin Liu
  • Neural network-based post filter for video coding
    Patent number: 12113995
    Abstract: 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.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: October 8, 2024
    Assignee: Lemon Inc.
    Inventors: Yue Li, Li Zhang, Kai Zhang
  • Interplay between in-loop filtering and video slices
    Patent number: 12114016
    Abstract: A method includes performing a conversion between a video unit of a video and a bitstream of the video. The bitstream conforms to a format rule. The format rule specifies that a syntax element indicating whether an in-loop filtering operation is performed across slice boundaries is selectively included in the bitstream based on whether or how the video unit is partitioned into slices.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: October 8, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Yang Wang, Ye-kui Wang, Zhipin Deng, Jizheng Xu, Hongbin Liu
  • Interaction between screen content coding tools and motion information
    Patent number: 12113986
    Abstract: Interaction between screen content coding tools and motion information is disclosed. A method of video processing includes modifying, for a conversion between a block of a video and a bitstream representation of the block, at least one of motion information associated with the block which is coded with intra block copy (IBC) mode; and performing the conversion based on the modified motion information.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: October 8, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Jizheng Xu, Li Zhang, Weijia Zhu, Kai Zhang, Hongbin Liu
  • DEFINITION OF ZERO UNIT
    Publication number: 20240333917
    Abstract: Devices, systems and methods for using zero-units in video and image coding are described. In a representative aspect, a method for processing video, including: determining, for a conversion between a block of the video and a bitstream of the video, that the block is a zero-unit (ZU) block based on one or more dimensions of the block being a non-power-of-two number, wherein no transform and inverse-transform operations are performed on the block; and performing the conversion based on the determination.
    Type: Application
    Filed: June 12, 2024
    Publication date: October 3, 2024
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Hsiao Chiang Chuang, Yue Wang
  • METHOD, APPARATUS AND MEDIUM FOR VIDEO PROCESSING
    Publication number: 20240333920
    Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a target block of a video and a bitstream of the target block, a set of non-adjacent affine candidates, wherein the number of non-adjacent affine candidates in the set is not larger than a first threshold number; and performing the conversion based on the set of non-adjacent affine candidates.
    Type: Application
    Filed: June 14, 2024
    Publication date: October 3, 2024
    Inventors: Kai ZHANG, Li Zhang, Zhipin Deng