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).

  • Patent number: 12015774
    Abstract: An example method of video processing includes partitioning, for a conversion between a current video block of a picture of a video and a bitstream of the video, the picture into one or more slices according to a requirement of bitstream conformance. The requirement of bitstream conformance specifies that a union of the one or more slices covers the whole picture, and a first syntax element is included in the bitstream to indicate whether the one or more slices have a rectangular shape. The method also includes performing the conversion at least based on the partitioning.
    Type: Grant
    Filed: November 25, 2022
    Date of Patent: June 18, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Zhipin Deng, Hongbin Liu, Li Zhang, Jizheng Xu
  • Patent number: 12015768
    Abstract: A method of video processing includes determining, for a conversion between a current block of a video and a bitstream of the video, that the current block is split into multiple sub-blocks, wherein each of the multiple sub-blocks is coded in the bitstream using a corresponding coding technique according to a pattern, and performing the conversion based on the determining.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: June 18, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 12015772
    Abstract: A method includes determining, for a conversion between a video block of a video and a bitstream of the video, a size of prediction block corresponding to the video block according to a rule. The method also includes performing the conversion based on the determining. The rule specifies that a first size of the prediction block is determined responsive to whether a prediction refinement using optical flow technique is used for coding the video block. The video block has a second size and is coded using an affine merge mode or an affine advanced motion vector prediction mode.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: June 18, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Li Zhang, Ye-Kui Wang, Kai Zhang, Jizheng Xu
  • Publication number: 20240193723
    Abstract: The invention provides a channel attention (CA)-based Swin-Transformer image denoising method and system. A noisy image is inputted into a trained and optimized denoising network model. A shallow layer feature extraction network in the denoising network model first extracts shallow layer feature information such as noise and channels in the noisy image. The extracted shallow layer feature information is then inputted into a deep layer feature extraction network in the denoising network model to acquire deep layer feature information. Subsequently, the shallow layer feature information and the deep layer feature information are inputted into a reconstruction network of the denoising network model to perform feature fusion, so that a clear image can be obtained, thereby overcoming problems that an image denoising method based on a deep convolutional neural network is prone to a loss of details in an inputted noisy image and high computing memory and time consumption.
    Type: Application
    Filed: December 30, 2021
    Publication date: June 13, 2024
    Inventors: Li ZHANG, Qiang DAI, Lei ZHAO, Bangjun WANG
  • Publication number: 20240195952
    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 combined inter and intra prediction (CIIP) mode associated with the target block; constructing a merge candidate list associated with the CIIP mode; performing an adaptive merge list reordering to the merge candidate list associated with the CIIP mode; and performing the conversion based on the reordered merge candidate list.
    Type: Application
    Filed: February 23, 2024
    Publication date: June 13, 2024
    Inventors: Zhipin DENG, Kai Zhang, Li Zhang
  • Publication number: 20240195986
    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 prediction of coding time for the target video block, the coding time representing a time duration during which a coding process of the target video block being performed; adjusting the coding process for the target video block based at least in part on the prediction of coding time; and performing the conversion between the target video block and the bitstream by using the adjusted coding process.
    Type: Application
    Filed: January 19, 2024
    Publication date: June 13, 2024
    Inventors: Yan HUANG, Jizheng XU, Li ZHANG, Li SONG
  • Publication number: 20240192151
    Abstract: A radiographic inspection apparatus and a vehicle-mounted security inspection system. The radiographic inspection apparatus includes a scanning device. The scanning device includes: an upright framework; a slip ring rotatably provided on the upright framework; and at least one locking mechanism. Each locking mechanism includes: a driving mechanism provided on the upright framework; and a locking portion provided on the driving mechanism and configured to press the slip ring in an axial direction of the slip ring under a driving of the driving mechanism, so as to prevent the slip ring from rotating relative to the upright framework.
    Type: Application
    Filed: January 12, 2022
    Publication date: June 13, 2024
    Inventors: Li ZHANG, Zhiqiang CHEN, Qingping HUANG, Mingzhi HONG, Yi CHENG, Minghua QIU, Yao ZHANG, Jianxue YANG, Lei ZHENG
  • Publication number: 20240195982
    Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining at least one syntax element of a video, the at least one syntax element indicating at least one of the following: a first flag indicating whether an encoder and decoder derive an intra prediction mode based on neighbouring samples of a current video unit of the video, or at least one parameter to be used for deriving the intra prediction mode based on the neighbouring samples of the current video unit; and performing a conversion between the video and a bitstream with the at least one syntax element. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency.
    Type: Application
    Filed: April 12, 2022
    Publication date: June 13, 2024
    Inventors: Yang WANG, Li ZHANG, Kai ZHANG
  • Publication number: 20240196002
    Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: obtaining, during a conversion between a first video unit in a target picture of a video and a bitstream of the video, second coding data of the first video unit based on first coding data of the first video unit and a refinement process, the first coding data being coded by a target coding mode; determining the use of the first coding data or the second coding data for processing a second video unit subsequent to the first video unit based on the target coding mode; and performing the conversion based on the target coding data. Compared with the conventional solution, the proposed method can advantageously improve the coding performance and efficiency.
    Type: Application
    Filed: April 21, 2022
    Publication date: June 13, 2024
    Inventors: Zhipin DENG, Li ZHANG, Kai ZHANG, Na ZHANG
  • Publication number: 20240190973
    Abstract: Provided herein are monoclonal antibodies, and antigen-binding fragments thereof, that bind fibroblast growth factor receptor 2 (FGFR2), and methods of use thereof and methods of use thereof. Also included are antibody-drug conjugates (ADCs) comprising the anti-FGFR2 antibodies or antigen-binding fragments thereof linked to a cytotoxic agent, radionuclide, or other moiety, as well as methods of treatment using the same.
    Type: Application
    Filed: September 7, 2023
    Publication date: June 13, 2024
    Inventors: Christopher Daly, Frank Delfino, Amy Han, Thomas Nittoli, Li Zhang
  • Publication number: 20240196001
    Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: obtaining, during a conversion between a target video unit in a target picture of a video and a bitstream of the video, second coding data of the target video unit based on first coding data of the target video and a refinement process, the first coding data being coded by a target coding mode; and performing the conversion based on the second coding data. Compared with the conventional solution, the proposed method can advantageously improve the coding performance and efficiency.
    Type: Application
    Filed: April 21, 2022
    Publication date: June 13, 2024
    Inventors: Zhipin DENG, Li ZHANG, Kai ZHANG, Na ZHANG
  • Patent number: 12010333
    Abstract: A method for visual media processing, including performing a conversion between a current chroma video block of visual media data and a bitstream representation of the current chroma video block. During the conversion, a chroma residual of the current chroma video block is scaled based on a scaling coefficient. The scaling coefficient is derived at least based on luma samples located in predefined positions.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: June 11, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu
  • Patent number: 12010317
    Abstract: A method of video processing includes performing a conversion between a video including a video region and a bitstream of the video according to a rule. The rule specifies a relationship between enablement of a palette mode and a coding type of the video region. The video region may represent a coding block of the video.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: June 11, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Jizheng Xu, Zhipin Deng, Li Zhang, Hongbin Liu, Kai Zhang
  • Patent number: 12010321
    Abstract: Disclosed and systems, methods and devices for video processing. An exemplary method for video processing includes: determining for a current video block, an indication which indicates that an affine merge with motion vector difference (MMVD) mode is applied to the current video block; performing a conversion between the current video block and a bitstream representation of a current video block based on the indication, the indication being activated based on the usage of at least one merge list for the current video block.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: June 11, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 12010295
    Abstract: Methods, apparatus, systems for video processing, including video encoding or video decoding are described. One example method includes performing a conversion between a video including a video picture that includes a video slice and a bitstream of the video. The bitstream conforms to a format rule specifying that a slice type of the video slice determines a manner by which certain information from a picture header for the video picture is inherited by a slice header of the video slice.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: June 11, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Li Zhang, Kai Zhang, Ye-kui Wang, Kui Fan
  • Patent number: 12010346
    Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a block of a video and a bitstream of the video according to a rule. The rule specifies that whether a syntax flag indicating whether transform skip residual coding is enabled at a video unit level is present in the bitstream is based on values of a first syntax element indicating usage of sign data hiding in the video unit and a second syntax element indicating usage of dependent quantization in the video unit.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: June 11, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Ye-Kui Wang, Li Zhang, Kai Zhang, Zhipin Deng
  • Publication number: 20240187633
    Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: obtaining, during a conversion between a target video unit in a target picture of a video and a bitstream of the video, second coding data of the target video unit based on first coding data of the target video unit and at least one refinement process, the at least one refinement process being applied based on a predefined criterion; and performing the conversion based on the second coding data. Compared with the conventional solution, the proposed method can advantageously improve the coding performance and efficiency.
    Type: Application
    Filed: April 21, 2022
    Publication date: June 6, 2024
    Inventors: Zhipin DENG, Li ZHANG, Kai ZHANG, Na ZHANG
  • Publication number: 20240186852
    Abstract: The present disclosure provides a permanent-magnet fault-tolerant in-wheel motor based on an active sensorless strategy and drive and design methods thereof. The present disclosure proposes the permanent-magnet fault-tolerant in-wheel motor drive system based on an active sensorless strategy by considering sensorless operation performance in advance in a motor design stage. The present disclosure adopts fractional-slot concentrated windings, and ingeniously arranges alternating poles, a multi-layer magnetic barrier, and auxiliary permanent magnets, thus improving a sensorless operation accuracy of the motor while ensuring fault tolerance of the motor. The present disclosure proposes a frequency-band-adaptive secondary harmonic suppression strategy at a control layer to suppress an influence of a secondary salient harmonic on position observation and improve dynamic response performance of a system.
    Type: Application
    Filed: September 29, 2022
    Publication date: June 6, 2024
    Applicant: Jiangsu University
    Inventors: Li ZHANG, Sisi DENG, Xiaoyong ZHU, Zixuan XIANG, Dong SHEN, Li QUAN
  • Publication number: 20240187636
    Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: constructing, during a conversion between a target block of a video and a bitstream of the video, a list of motion candidates for motion information for the target block; determining a reordering scheme based at least in part on coding information, the reordering scheme indicating whether and/or how at least one motion candidate in the list of motion candidates is to be reordered; generating a target list of motion candidates from the list of motion candidates according to the reordering scheme; and deriving the motion information for the target block from the target list of motion candidates. Compared with the conventional solution, the proposed method can advantageously improve the coding effectiveness and coding efficiency.
    Type: Application
    Filed: April 8, 2022
    Publication date: June 6, 2024
    Applicants: Beijing Bytedance Network Technology Co., Ltd., Bytedance Inc.
    Inventors: Na ZHANG, Kai ZHANG, Li ZHANG, Hongbin LIU, Zhipin DENG, Yang WANG
  • Publication number: 20240187575
    Abstract: A method for video processing is proposed. The method comprises: deriving, during a conversion between a target unit of a video and a bitstream of the target unit, an intra prediction mode (IPM) of the target unit for at least one chroma component (2610), the target unit being applied with a target coding tool; obtaining a prediction of the target unit for the at least one chroma component using the IPM (2620); and performing the conversion based on the prediction of the target unit for the at least one chroma component (2630).
    Type: Application
    Filed: February 9, 2024
    Publication date: June 6, 2024
    Inventors: Yang WANG, Kai ZHANG, Li ZHANG