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).

  • Patent number: 11973962
    Abstract: Devices, systems and methods for applying intra-block copy (IBC) in video coding are described. In general, methods for integrating IBC with existing motion compensation algorithms for video encoding and decoding are described. In a representative aspect, a method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using a motion compensation algorithm, and encoding, based on the determining, the current block by selectively applying an intra-block copy to the current block. In a representative aspect, another method for video encoding using IBC includes determining whether a current block of the current picture is to be encoded using an intra-block copy, and encoding, based on the determining, the current block by selectively applying a motion compensation algorithm to the current block.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: April 30, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Publication number: 20240137573
    Abstract: A mechanism for processing video data is disclosed. The mechanism determines to apply a bilateral filter to samples in a current block of a current picture. The bilateral filter includes filter weights that vary based on a distance between surrounding samples and a central sample and differences in intensities of the surrounding samples and the central sample. A conversion is performed between a visual media data and a bitstream based on the bilateral filter.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 25, 2024
    Inventors: Wenbin Yin, Kai Zhang, Li Zhang
  • Publication number: 20240137556
    Abstract: A device for video decoding can be configured to obtain, from a syntax structure in a bitstream comprising an encoded representation of the video data, a syntax element indicating whether 6-parameter affine prediction is enabled for blocks corresponding to the syntax structure, wherein the blocks corresponding to the syntax structure comprise a first block; based on the syntax element indicating that the 6-parameter affine prediction is enabled for the blocks corresponding to the syntax structure, use the 6-parameter affine prediction to generate a predictive block for the first block; and use the predictive block and residual data to reconstruct the first block.
    Type: Application
    Filed: December 8, 2023
    Publication date: April 25, 2024
    Inventors: Kai Zhang, Jianle Chen, Xin Zhao, Marta Karczewicz
  • Publication number: 20240137572
    Abstract: Methods, systems and apparatus for video processing are described. One example video processing method includes performing a conversion between a video comprising a video block and a bitstream of the video according to a rule, wherein the video block is a coding tree node that includes one or more coding units, and wherein the rule specifies that a coded information of the video block is indicative of whether a coding mode is enabled for the one or more coding units of the video block.
    Type: Application
    Filed: November 29, 2023
    Publication date: April 25, 2024
    Inventors: Zhipin Deng, Ye-kui Wang, Li Zhang, Kai Zhang
  • Publication number: 20240135872
    Abstract: In the pixel circuit, the data writing-in circuit is configured to control to connect the data line and the second terminal of the driving circuit under the control of a first scanning signal provided by the first scanning line; the compensation control circuit is configured to control to connect the first terminal of the driving circuit and the connection node under the control of a second scanning signal provided by the second scanning line; the first control circuit is configured to control to connect the control terminal of the driving circuit and the connection node under the control of the first scanning signal.
    Type: Application
    Filed: July 12, 2022
    Publication date: April 25, 2024
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Gang WANG, Kai ZHANG, Xinyu WEI, Qiang FU, Xingrui CAI
  • Publication number: 20240137574
    Abstract: A mechanism for processing video data is disclosed. The mechanism determines to classify picture data into groups based on statistical information related to the picture data and apply a bilateral filter to filter samples in each of the groups. A conversion is performed between a visual media data and a bitstream based on the bilateral filter.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 25, 2024
    Inventors: Wenbin Yin, Kai Zhang, Li Zhang
  • Publication number: 20240137577
    Abstract: A method of processing video data. The method includes applying a super resolution (SR) process to a video unit at a level of an SR unit, where the SR unit includes more than one pixel of the video unit, and performing a conversion between a video comprising the video unit and a bitstream of the video based on the SR process as applied. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 25, 2024
    Inventors: Chaoyi Lin, Yue Li, Kai Zhang, Zhaobin Zhang, Li Zhang
  • Publication number: 20240137518
    Abstract: A method of processing video data. The method includes using coded information during application of a super resolution (SR) process to a video unit; and performing a conversion between a video including the video unit and a bitstream of the video based on the SR process as applied using the coded information. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.
    Type: Application
    Filed: December 27, 2023
    Publication date: April 25, 2024
    Inventors: Chaoyi Lin, Yue Li, Kai Zhang, Zhaobin Zhang, Li Zhang
  • Publication number: 20240135885
    Abstract: The present disclosure provides a pixel driving circuit and a display panel. The pixel drive circuit includes: a data writing sub-circuit, a threshold compensation sub-circuit, a driving sub-circuit and a storage sub-circuit, the data writing sub-circuit includes a fourth transistor, which includes a first electrode connected with a data line, a second electrode connected with a first terminal of the driving sub-circuit, and a control electrode connected with a first scan signal line, and the fourth transistor is an oxide thin film transistor; the threshold compensation sub-circuit is configured to compensate a threshold voltage of the driving sub-circuit in response to a second scan signal; the storage sub-circuit is configured to store a data voltage signal; the driving sub-circuit is configured to provide a driving current for a light emitting device to be driven according to voltages of the first terminal and a control terminal thereof.
    Type: Application
    Filed: June 30, 2022
    Publication date: April 25, 2024
    Inventors: Kunyan SHI, Yafei CHEN, Gang WANG, Qiang FU, Erlong SONG, Kai ZHANG, Peng XU, Xingrui CAI
  • Publication number: 20240131644
    Abstract: Disclosed is a selective field-assisted machining system. The system includes a micron-level high-speed identification module, an in-situ laser assisted module, an ultrasonic vibration module, an energy field loading high-speed control module, and a diamond tool. The micron-level high-speed identification module is used to quickly identify the type of a material substrate of a workpiece to be processed, process the identification information into a corresponding control signal, and send same to the energy field loading high-speed control module to implement selective processing of the workpiece to be processed, i.e. to process brittle particles using in-situ laser assisted machining and to process a soft metal substrate using ultrasonic vibration processing. In the present invention, ultra-precision cutting of brittle particles and a soft metal substrate can be completed at the same time in a single processing process.
    Type: Application
    Filed: December 25, 2023
    Publication date: April 25, 2024
    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Jianfeng XU, Zhengding ZHENG, Jianguo ZHANG, Kai HUANG, Mao WANG, Xiao CHEN, Junfeng XIAO
  • Publication number: 20240136617
    Abstract: For manufacturing a Zn-air battery, a semi-liquid hydrogel including a polymer component comprising an irradiation activatable crosslinking initiator, and including an electrolyte component is deposited on a zinc anode. At least parts of the semi-liquid hydrogel are irradiated to activate the irradiation activatable crosslinking initiator for crosslinking the polymer component such as to transform the semi-liquid hydrogel into a drop-free yet sticky hydrogel. An air cathode is stuck to the drop-free yet sticky hydrogel.
    Type: Application
    Filed: December 8, 2023
    Publication date: April 25, 2024
    Inventors: Hua Zhang, Kai Zhang, Minshen Zhu, Oliver G. Schmidt
  • Publication number: 20240137496
    Abstract: Embodiments of the present disclosure provide a method for video processing. The method comprises: applying, during a conversion between a target block of a video and a bitstream of the video, a gradient-based position dependent pre-diction combination to the target block in a coding mode, a gradient of a number of neighboring samples of the target block being used in the gradient-based position dependent prediction combination; and performing the conversion based on the applying.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 25, 2024
    Inventors: Zhipin DENG, Kai Zhang, Li Zhang
  • Publication number: 20240137498
    Abstract: A mechanism for processing video data implemented by a video coding apparatus is disclosed. The mechanism determines to apply a prediction splitting tree to a prediction tree unit (PTU). The prediction splitting tree includes a leaf prediction unit (PU). A prediction mode is selected for the leaf PU based on whether the leaf PU is split from the PTU. The method performs a conversion between a visual media data and a bitstream based on the leaf PU.
    Type: Application
    Filed: December 27, 2023
    Publication date: April 25, 2024
    Inventors: Kai Zhang, Li Zhang, Zhipin Deng, Na Zhang, Yang Wang
  • Publication number: 20240137513
    Abstract: A method of processing video data. The method includes applying different super resolution (SR) processes to different sub-regions of a video unit, and performing a conversion between a video including the different regions of the video unit and a bitstream of the video based on the different SR processes as applied. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Inventors: Chaoyi Lin, Yue Li, Kai Zhang, Zhaobin Zhang, Li Zhang
  • Publication number: 20240135591
    Abstract: Embodiments of the present disclosure provide a method for point cloud coding. The method comprises: classifying, during a conversion between a current frame of a point cloud sequence and a bitstream of the point cloud sequence, a target point in the current frame into a first set of classes based on a second set of thresholds, the number of thresholds in the second set being larger than the number of classes in the first set; and performing the conversion based on the classification. Compared with the conventional solution, the proposed method can advantageously improve the accuracy of global motion estimation and coding quality.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 25, 2024
    Inventors: Yingzhan XU, Kai ZHANG, Li ZHANG
  • Publication number: 20240136948
    Abstract: This application describes examples of a grid-tied inverter apparatus and a grid-tied control method. In one example, the grid-tied inverter apparatus includes an inverter circuit, a controller, and a filter circuit. The controller is configured to adjust switching frequencies of a plurality of power switching transistors based on an output current value of the inverter apparatus, to adjust a resonance frequency of the filter circuit through different resonant branches, so that the resonance frequency meets a grid-tied requirement.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 25, 2024
    Inventors: Yunyu TANG, Lei SHI, Yaojia ZHANG, Dong CHEN, Kai XIN
  • Publication number: 20240137517
    Abstract: A method of processing video data. The method includes applying a super resolution (SR) process to a video unit at a specific position relative to one or more in-loop filters when the one or more in-loop filters are applied to the video unit, and performing a conversion between a video comprising the video unit and a bitstream of the video based on the SR process and the one or more in-loop filters as applied. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.
    Type: Application
    Filed: December 27, 2023
    Publication date: April 25, 2024
    Inventors: Chaoyi Lin, Yue Li, Kai Zhang, Zhaobin Zhang, Li Zhang
  • Publication number: 20240137510
    Abstract: A mechanism for processing video data implemented by a video coding apparatus is disclosed. The mechanism determines to split a coding tree unit (CTU) into one or more coding units (CUs). One or more of the CUs may be one or more prediction tree units (PTUs). The mechanism further determines to recursively split the CUs into prediction units (PUs). The method performs a conversion between a visual media data and a bitstream based on the PUs.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Inventors: Kai Zhang, Li Zhang, Zhipin Deng, Na Zhang, Yang Wang
  • Publication number: 20240137529
    Abstract: Embodiments of the present disclosure provide a method for video processing. The method comprises: determining, during a conversion between a current video block of a video and a bitstream of the video, at least one target intra prediction mode for the current video block based on neighboring reconstructed samples of the current video block; determining a prediction or a reconstruction of the current video block based on a combination of the at least one target intra prediction mode and one of an inter coding tool or a candidate coding tool, the candidate coding tool being used for determining a reference block for the current video block with samples in a current picture associated with the current video block; and performing the conversion based on the prediction or the reconstruction of the current video. Compare with conventional solutions, the proposed method can advantageously improve coding efficiency and coding quality.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 25, 2024
    Inventors: Yang WANG, Li ZHANG, Kai ZHANG, Zhipin DENG
  • Publication number: 20240137519
    Abstract: A method of processing video data. The method includes down-sampling a video unit of a video prior to application of a super resolution (SR) process and performing a conversion between the video including the video unit and a bitstream of the video based on the video unit as down-sampled. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Inventors: Chaoyi Lin, Yue Li, Kai Zhang, Zhaobin Zhang, Li Zhang