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).

  • Checking order of motion candidates in LUT
    Patent number: 11146786
    Abstract: A method of video processing includes maintaining tables, wherein each table includes a set of motion candidates and each motion candidate is associated with corresponding motion information; and performing a conversion between a first video block and a bitstream representation of a video including the first video block based on at least some of tables, the performing including checking motion candidates in a table in an order defined in a rule until a checking termination criteria is met.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: October 12, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Network slice management method, device, and system
    Patent number: 11146462
    Abstract: This application relates to the field of communications technologies, and discloses a network slice management method, device, and system, to solve the problem of low efficiency of manually deploying a network slice. One example network slice management method comprises obtaining, by a network management unit, the capability description information of a network slice, where the capability description information of the network slice includes at least one of a feature of the network slice and a deployment capability of the network slice. The method further comprises sending, by the network management unit, a notification message carrying the capability description information of the network slice, to a service management unit.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: October 12, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ruiyue Xu, Jun Yang, Yan Li, Kai Zhang
  • Using combined inter intra prediction in video processing
    Patent number: 11146797
    Abstract: Techniques for implementing video processing techniques are described. In one example implementation, a method of video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, whether a combined inter and intra prediction (CIIP) coding technique is to be applied to the current block based on a characteristic of the current block. The CIIP coding technique uses an intermedia inter prediction value and an intermedia intra prediction value to derive a final prediction value of the current block. The method also includes performing the conversion based on the determining.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 12, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Selection of coded motion information for LUT updating
    Patent number: 11146785
    Abstract: A method of video decoding includes maintaining a number of tables, wherein each table includes a set of motion candidates, wherein each motion candidate is associated with corresponding motion information derived from previously video blocks, performing a conversion between a video block and a coded representation of the video block, and determining, based on a conversion condition of the video block, whether to update at least one of the tables by adding motion information corresponding to the video block.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: October 12, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • CONFIGURING LUMA-DEPENDENT CHROMA RESIDUE SCALING FOR VIDEO CODING
    Publication number: 20210314572
    Abstract: A method for video processing is provided to include: performing a conversion between a current video block of a video that is a chroma block and a coded representation of the video, wherein, during the conversion, the current video block is constructed based on a first domain and a second domain, and wherein the conversion further includes applying a forward reshaping process and/or an inverse reshaping process to one or more chroma components of the current video block.
    Type: Application
    Filed: May 17, 2021
    Publication date: October 7, 2021
    Inventors: Li ZHANG, Kai ZHANG, Hongbin LIU, Jizheng XU, Yue WANG
  • TWO STEP CROSS-COMPONENT PREDICTION MODE
    Publication number: 20210314595
    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: June 21, 2021
    Publication date: October 7, 2021
    Inventors: Li ZHANG, Kai ZHANG, Hongbin LIU, Jizheng XU, Yue WANG
  • INTRA BLOCK COPY MODE WITH DUAL TREE PARTITION
    Publication number: 20210314610
    Abstract: The application relates to an intra block copy mode with dual tree partition. A method of video processing is disclosed. The method of video processing includes: determining, during a conversion between a current video block and a bitstream representation of the current video block, a block vector for the current video block; and performing, at least based on the block vector, the conversion, wherein when the current video block is coded with a coding mode using a reference block for prediction pointing to a same picture that the current video block is located in, and the current video block is a first type of block, the block vector is derived from at least one second type of block.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 7, 2021
    Inventors: Jizheng XU, Kai ZHANG, Li ZHANG, Hongbin LIU, Yue WANG
  • MULTI-PARAMETER ADAPTIVE LOOP FILTERING IN VIDEO PROCESSING
    Publication number: 20210314628
    Abstract: Devices, systems and methods for video processing are described. In an exemplary aspect, a method for video processing includes performing a conversion between a coded representation of a video comprising one or more video regions and the video. The coded representation includes first side information that provides a clipping parameter for filtering a reconstruction of a video unit of a video region using a non-linear adaptive loop filter, and wherein the first side information is signaled together with second side information indicative of filter coefficients used in the non-linear adaptive loop filter.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 7, 2021
    Inventors: Li ZHANG, Kai ZHANG, Hongbin LIU, Yue WANG
  • Memory testing method and memory testing system
    Patent number: 11139044
    Abstract: A memory testing method and a memory testing system. The memory testing system includes a host system and a testing device. The host system includes a processor. The testing device is coupled to the host system and a rewritable non-volatile memory module. A first memory controlling circuit unit corresponding to a first type memory storage device in the testing device tests the rewritable non-volatile memory module to obtain first test information. A second memory controlling circuit unit corresponding to a second type memory storage device in the testing device tests the rewritable non-volatile memory module to obtain second test information according to the first test information. The processor determines that whether the rewritable non-volatile memory module is applicable to the second type memory storage device or not according to the first test information and the second test information.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: October 5, 2021
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Siu-Tung Lam, Chih-Hung Chiu, Kun-Tsung Lo, Chao-Kai Zhang
  • Motion candidate list construction for intra block copy (IBC) mode and non-IBC inter mode
    Patent number: 11140412
    Abstract: A method for video processing is provided to include constructing, during a conversion between a current video block and a coded representation of the current video block, an intra block copy (IBC) motion candidate list, wherein insertion of motion candidates to the IBC motion candidate list is subject to a size restriction; and performing the conversion using the IBC motion candidate list.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: October 5, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Jizheng Xu, Yue Wang
  • Coordination method for sub-block based inter prediction
    Patent number: 11140386
    Abstract: Devices, systems and methods for digital video coding, which include sub-block based inter prediction methods, are described. An exemplary method for video processing includes determining, for a conversion between a current block of video and a bitstream representation of the video, a maximum number of candidates in a sub-block based merge candidate list and/or whether to add sub-block based temporal motion vector prediction (SbTMVP) candidates to the sub-block based merge candidate list based on whether temporal motion vector prediction (TMVP) is enabled for use during the conversion or whether a current picture referencing (CPR) coding mode is used for the conversion, and performing, based on the determining, the conversion.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: October 5, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Interaction between look up table and shared merge list
    Patent number: 11140383
    Abstract: A method for video processing is provided to comprise: determining, whether to use a temporal prediction for obtaining an adaptive loop filter for a conversion between a current video block of a video and a coded representation of the video, based on whether a cross-tile prediction is enabled; and performing the conversion using an adaptive loop filter that is obtained based on the determining.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: October 5, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Checking order of motion candidates in LUT
    Patent number: 11140385
    Abstract: A method of video processing includes maintaining tables, wherein each table includes a set of motion candidates and each motion candidate is associated with corresponding motion information; and performing a conversion between a first video block and a bitstream representation of a video including the first video block based on at least some of tables, the performing including checking motion candidates in a table in an order defined in a rule until a checking termination criteria is met.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: October 5, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • SULFOXIMINE COMPOUND AS BROMODOMAIN PROTEIN INHIBITOR AND PHARMACEUTICAL COMPOSITION AND MEDICAL USE THEREOF
    Publication number: 20210300923
    Abstract: The present invention relates to a sulfoximine compound represented by formula (I) as a bromodomain protein inhibitor and a pharmaceutically acceptable salt thereof and to a preparation method, pharmaceutical composition, and medical use thereof.
    Type: Application
    Filed: July 25, 2019
    Publication date: September 30, 2021
    Inventors: Jijun LI, Yan ZHU, Yeliu WANG, Xianxing SHANG, Huting WANG, Weinan HE, Qin YAN, Yinghui SUN, Kai ZHANG, Chang LU, Hongjiang XU, Xin TIAN, Ling YANG
  • CROSS-COMPONENT CODING ORDER DERIVATION
    Publication number: 20210306631
    Abstract: Method and apparatus for using block size restrictions in video decoding are described. In a representative aspect, a method for video decoding includes receiving a bitstream representation of video data including a block wherein the block comprises samples associated with a first component and second components, wherein samples associated with the first component of the block have a dimension M×N; and decoding the first component and the second components of the block; wherein decoding the first component of the block comprises, based on the dimension, decoding a plurality of sub-blocks for the first component of the block, and the plurality of the sub-blocks are generated by performing a splitting operation only on the samples associated with the first component of the block and not on the samples associated with the second components of the block.
    Type: Application
    Filed: June 14, 2021
    Publication date: September 30, 2021
    Inventors: Kai ZHANG, Li ZHANG, Hongbin LIU, Yue WANG
  • Simplified coding of generalized bi-directional index
    Patent number: 11134268
    Abstract: Devices, systems and methods for digital video coding, which include decoder side motion vector derivation (DMVD) tools, are described. An exemplary method for video processing includes making a decision, based on a determination that a current block of a video is coded using a multi-hypothesis prediction mode, regarding a selective enablement of a DMVD tool for the current block, wherein the DMVD tool derives a refinement of motion information signaled in a bitstream representation of the video; and performing, based on the decision, a conversion between the current block and the bitstream representation.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: September 28, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Yue Wang
  • Order of rounding and pruning in LAMVR
    Patent number: 11134244
    Abstract: Devices, systems and methods for encoding and decoding digital video historical information such as tables containing coding candidates are described. In a representative aspect, a method for video processing includes maintaining an Advanced Motion Vector Prediction (AMVP) candidate list for a conversion between a video block of a video and a bitstream representation of the video with a motion vector precision of M-Pel or sub-pel selected from multiple available motion vector precisions, M being a positive integer. The method also includes comparing an AMVP candidate associated with the video block with existing AMVP candidates in the AMVP candidate list, adding the AMVP candidate to the AMVP candidate list upon determining that the AMVP candidate is different than the existing candidates, and performing the conversion based on the AMVP candidate list.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: September 28, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Bi-prediction with weights in video coding and decoding
    Patent number: 11134245
    Abstract: A video coding or decoding method includes using history-based motion vector prediction (HMVP) for conversion between multiple video blocks including a current block of video and a bitstream representation of the multiple video blocks such that for a uni-predicted block that for which a single reference picture is used for motion compensation, refraining from updating a look-up table for HMVP candidates for the uni-predicted block. The video coding or decoding method further includes performing the conversion using look-up tables for the multiple video blocks.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: September 28, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Rules on updating luts
    Patent number: 11134243
    Abstract: Devices, systems and methods for encoding and decoding digital video using historical information containing coding candidates are described. In a representative aspect, a method for video processing includes maintaining one or more tables of motion candidates during a conversion between a current video block and a bitstream representation of a video, comparing a motion candidate associated with the current video block with a number of entries in the one or more tables, and updating the one or more tables based on the comparing.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: September 28, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Update of look up table: FIFO, constrained FIFO
    Patent number: 11134267
    Abstract: A method of video processing is provided to include maintaining one or more tables, wherein each table includes one or more motion candidates and each motion candidate is associated with corresponding motion information; performing a conversion between a current block and a bitstream representation of a video including the current block by using motion information in a table; and updating, after performing of the conversion, one or more tables based on M sets of additional motion information associated with the current block, M being an integer.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: September 28, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang