Patents by Inventor Kai Zhang

Kai 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).

  • Publication number: 20240040116
    Abstract: A mechanism for processing video data is disclosed. A conversion is performed between a visual media data including a plurality of video units and a bitstream. A guided filter is applied to samples in the video units. The guided filter is applied at a post decoding stage, such as in an in-loop filtering process.
    Type: Application
    Filed: October 12, 2023
    Publication date: February 1, 2024
    Inventors: Wenbin Yin, Li Zhang, Kai Zhang, Yang Wang, Hongbin Liu
  • Publication number: 20240040119
    Abstract: A mechanism and method for processing video data is disclosed. The video processing method includes applying a first partitioning scheme to a parent video unit to obtain a current video unit and performing a conversion between a video media data and a bitstream based on application of the first partitioning scheme.
    Type: Application
    Filed: October 9, 2023
    Publication date: February 1, 2024
    Inventors: Kai Zhang, Li Zhang, Zhipin Deng, Na Zhang, Yang Wang
  • Patent number: 11889119
    Abstract: Methods, systems, and apparatuses for video processing are described. A method for processing video includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that values of one or more general constraint flags at a first level in the bitstream control occurrence of one or more syntax elements at a sequence parameter set (SPS) level or a picture header (PH) level or a slice header (SH) level.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: January 30, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Ye-kui Wang, Li Zhang, Kai Zhang, Kui Fan
  • Patent number: 11889100
    Abstract: A method and system of coding video data using affine motion compensation is described. A method may include receiving a current block of video data that is to be decoded using affine motion compensation, and constructing an affine motion vector predictor (MVP) list for one or more control points of the current block of video data, including adding a motion vector from a neighboring block of video data to the affine MVP list in the case that the motion vector has an associated reference picture that is the same as a target reference picture for the current block of video data. A video coder may determine motion vectors for the one or more control points using the affine MVP list, and code the current block of video data with the determined motion vectors for the one or more control points of the current block of video data.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: January 30, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Kai Zhang, Jianle Chen, Xiang Li, Hsiao-Chiang Chuang, Marta Karczewicz
  • Patent number: 11889097
    Abstract: Aspects include a method, apparatus and computer-readable medium of decoding video or blocks of an image, including receiving a bitstream of the image, deriving, for a block of the image in the bitstream, multiple intra-prediction modes (IPMs) to use in decoding the block, determining, based on the multiple IPMs, a final predictor to use in decoding the block, and decoding the block using the final predictor. Other aspects include method, apparatus and computer-readable medium for similarly encoding video or blocks of an image.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: January 30, 2024
    Assignee: LEMON INC.
    Inventors: Yang Wang, Kai Zhang, Li Zhang, Yuwen He, Hongbin Liu
  • Patent number: 11889108
    Abstract: Gradient computation in Bi-directional optical flow are described. In a representative aspect, a method of video processing including: modifying temporal gradients in a motion vectors refinement process of a video block or sub-blocks within the video block; and performing the motion vectors refinement process of the video block or the sub-blocks within the video block based on the modified temporal gradients.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: January 30, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Yue Wang
  • Publication number: 20240031240
    Abstract: Embodiments of this application provide a method, an apparatus, and a system for training a management and control model. The method includes: receiving configuration information from a first network management unit, where the configuration information is used to configure a model training function, and the configuration information includes at least one of the following information: state information, for activating or deactivating the model training function; trigger information, for triggering model training; and data information, indicating data for model training; and performing model training based on the configuration information, to obtain network model information. According to embodiments of this application, the second network management unit configures the model training function based on the received configuration information sent by the first network management unit, to perform model training based on the configuration information, to obtain the network model information.
    Type: Application
    Filed: September 29, 2023
    Publication date: January 25, 2024
    Inventors: Ruiyue Xu, Lan Zou, Kai Zhang
  • Publication number: 20240031613
    Abstract: A mechanism and method for processing video data is disclosed. The video processing method includes determining whether to enable a second partitioning scheme for coding of a current video unit according to a rule. The method includes performing a conversion between a video media data and a bitstream based on the rule.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 25, 2024
    Inventors: Kai Zhang, Li Zhang, Zhipin Deng, Na Zhang, Yang Wang
  • Publication number: 20240032002
    Abstract: Provided is a method for a user equipment (UE). The UE obtains a slot allocation information from a network device. The slot allocation information indicates a first slot and a second slot. The first slot is configured to communicate voice traffic and the second slot is configured to communicate traffic other than voice. The UE communicates the voice traffic in the first slot and the traffic other than voice in the second slot.
    Type: Application
    Filed: July 7, 2023
    Publication date: January 25, 2024
    Applicant: Apple Inc.
    Inventors: Xiaolong Tu, Kai Zhang, Lele Cui, Lijie Zhang
  • Publication number: 20240031565
    Abstract: A mechanism for processing video data implemented by a video coding apparatus is disclosed. The mechanism determines whether a block is dyadic or non-dyadic. The mechanism also enables a coding tool associated with intra prediction when the block is determined to be dyadic. The mechanism also disables the coding tool when the block is determined to be non-dyadic. A conversion between a visual media data and a bitstream is performed by applying intra prediction to the block.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 25, 2024
    Inventors: Kai Zhang, Li Zhang, Zhipin Deng, Na Zhang, Yang Wang
  • Patent number: 11881176
    Abstract: A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: January 23, 2024
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yi Zhang, Kai Zhang, Minghua Xuan, Young Yik Ko, Lujiang Huangfu
  • Patent number: 11882274
    Abstract: A method of video processing is described. The method includes determining, for a conversion between a current video block of a video unit of a video and a coded representation of the video, a default intra prediction mode for the video unit coded using a certain intra prediction mode such that a prediction block of the current video block is generated without extrapolating neighboring pixels of the current video block along a direction; and performing the conversion based on the determining.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: January 23, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11882287
    Abstract: A method of visual media processing includes determining, for a conversion between a current video block of visual media data and a bitstream representation of the current video block, a buffer that stores reference samples for prediction in an intra block copy mode; for a sample spatially located at location of the current video block relative to an upper-left position of a coding tree unit including the current video block and having a block vector, computing a corresponding reference in the buffer at a reference location, wherein the reference location is determined using the block vector and the location; and upon determining that the reference location lies outside the buffer, re-computing the reference location based at least in part on a location of the current video block relative to the coding tree unit including the current video block.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: January 23, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Jizheng Xu, Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11882291
    Abstract: A method for video processing is provided. The method includes determining, for a conversion between a current video block of a video that is a chroma block and a coded representation of the video, multiple sets of parameters, wherein each set of parameters defines a cross-component linear model (CCLM) and is derived from a corresponding group of chroma samples at corresponding chroma sample positions; determining, based on the multiple sets of parameters, parameters for a final CCLM; and performing the conversion based on the final CCLM.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: January 23, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Publication number: 20240022754
    Abstract: A method for video bitstream processing includes generating, using a first video block derived from a third video block of a first component and having a first size, a prediction block for a second video block of a video related to a second component, where the first component is different from the second component, and where the second video block has a second size that is different from the first size. The method also includes performing, using the prediction block, a conversion between the second video block and a bitstream representation of the video according to a two-step cross-component prediction mode (TSCPM).
    Type: Application
    Filed: September 22, 2023
    Publication date: January 18, 2024
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Publication number: 20240021160
    Abstract: A display panel including a pixel driving circuit including a driving transistor, a first transistor having a gate electrode connected to a first gate line and a first electrode connected to a gate electrode of the driving transistor, and a second transistor having a gate electrode connected to a second gate line, a first electrode connected to the gate electrode of the driving transistor, and a second electrode connected to a second electrode of the driving transistor, the driving transistor is a P type transistor, and the first transistor and the second transistor are N type transistors, wherein the display panel further includes: a base substrate, a first conductive layer, a third conductive layer, and a first conducting part.
    Type: Application
    Filed: September 29, 2023
    Publication date: January 18, 2024
    Inventors: Huaping SUN, Erlong Song, Qiang Fu, Kai Zhang, Dongjie Wu
  • Publication number: 20240022721
    Abstract: A mechanism for processing video data is disclosed. The method includes determining, for a conversion between a visual media data and a bitstream, whether a partitioning scheme is enabled for coding of the video media data according to a rule. The method includes performing the conversion based on determined rule.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 18, 2024
    Inventors: Kai Zhang, Li Zhang, Zhipin Deng, Na Zhang, Yang Wang
  • Publication number: 20240022722
    Abstract: Systems, methods, apparatus for video processing are described. A video processing method includes determining, for a conversion between a current block of a video and a bitstream of the video, whether or which a partitioning scheme is enabled for coding of the current block according to a rule, and performing the conversion based on the determining. The rule is based on one or more neighboring blocks of the current block.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 18, 2024
    Inventors: Kai Zhang, Li Zhang, Zhipin Deng, Na Zhang, Yang Wang
  • Publication number: 20240022725
    Abstract: A method of processing video data includes selecting a first dependent quantization (DQ) parameter to be applied to a first video unit within a sequence; selecting a second DQ parameter to be applied to a second video unit within the sequence, wherein the second DQ parameter is different from the first DQ parameter; and converting between a video media file and a bitstream based on the first DQ parameter and the second DQ parameter that were selected. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 18, 2024
    Inventors: Yang Wang, Li Zhang, Kai Zhang, Zhipin Deng, Na Zhang
  • Publication number: 20240022717
    Abstract: Methods and an apparatus for video processing are described. One example method includes determining, for a conversion between a video block of a video and a bitstream of the video, that the video block satisfies a condition. The video block is coded in the bitstream using an intra block copy mode. The method further includes performing the conversion based on the determining. Here, due to the video block satisfying the condition, a portion of an intra block copy buffer is reset during the conversion.
    Type: Application
    Filed: August 30, 2023
    Publication date: January 18, 2024
    Inventors: Jizheng Xu, Li Zhang, Kai Zhang, Hongbin Liu