Patents by Inventor Kui Wang

Kui Wang 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).

  • Error avoidance in sub-bitstream extraction
    Patent number: 12022125
    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a sequence parameter set (SPS) including a SPS video parameter set identifier (sps_video_parameter_set_id). The bitstream also comprises a coded picture in a set of video coding layer (VCL) network abstraction layer (NAL) units associated with a layer having a NAL unit header layer identifier (nuh_layer_id). A general layer index corresponding to the nuh_layer_id (GeneralLayerIdx[nuh_layer_id]) is set equal to zero when the sps_video_parameter_set_id is equal to zero. The coded picture is decoded from the VCL NAL units based on the GeneralLayerIdx[nuh_layer_id] to produce a decoded picture The decoded picture is forwarded for display as part of a decoded video sequence.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: June 25, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Ye-Kui Wang
  • Sub-picture Level Indicator Signaling In Video Coding
    Publication number: 20240205437
    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising one or more sub-pictures partitioned from a picture and a sub-picture level indicator indicating resource requirements for decoding a current sub-picture. The bitstream is parsed to obtain the sub-picture level indicator and the current sub-picture. Resources are allocated to decode the current sub-picture based on the sub-picture level indicator. The current sub-picture is decoded to create a video sequence by employing the allocated resources. The video sequence is forwarded for display.
    Type: Application
    Filed: February 28, 2024
    Publication date: June 20, 2024
    Inventors: Ye-Kui Wang, FNU Hendry
  • CTLA-4 SMALL MOLECULE DEGRADATION AGENT AND APPLICATION THEREOF
    Publication number: 20240199654
    Abstract: A CTLA-4 small molecule degradation agent and an application thereof. The CTLA-4 small molecule degradation agent comprises a compound having the structure represented by formula I or a pharmaceutically acceptable salt, an ester, a deuterated product, an isomer, a solvate, a prodrug, or an isotopic label thereof: a new class of small molecule compounds having high degradation activity on CTLA-4. The compounds show a good degradation activity on CTLA-4 at the nanomolar (nM) level in in vitro studies.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 20, 2024
    Applicant: SUZHOU GUOKUANG PHARMTECH. CO., LTD.
    Inventors: Desheng MEI, Baokun HE, Shiming LV, Gaorui SUN, Kui WANG, Cheng XIAO, Min LIANG, Xin LING, Shuaishuai LIU
  • Signaling of slice types in video pictures headers
    Patent number: 12015795
    Abstract: Devices, systems and methods related to digital video coding, and specifically, to signaling of slice types in video picture headers are described. One example method of video processing includes performing a conversion between a video including one or more video pictures including one or more slices and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that for a video picture of the one or more video pictures having all slices coded as I slices, P slice and B slice related syntax elements are omitted from a picture header for the video picture.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: June 18, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Zhipin Deng, Jizheng Xu, Ye-kui Wang
  • Prediction refinement for affine merge and affine motion vector prediction mode
    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
  • Reference picture management in video coding
    Patent number: 12015761
    Abstract: A method of decoding a coded video bitstream is provided. The method includes obtaining a reference picture list structure for a current slice represented in the coded video bitstream; constructing a reference picture list for the current slice based on the reference picture list structure such that a number of entries in the reference picture list and an order of the entries in the reference picture list are both the same as in the reference picture list structure, wherein the reference picture list contains a plurality of active entries and a plurality of inactive entries; and obtaining, based on at least one active entry of the reference picture list, at least one reconstructed block of the current slice.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: June 18, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Fnu Hendry, Ye-Kui Wang
  • High-Level Syntax Designs for Point Cloud Coding
    Publication number: 20240196017
    Abstract: A method of point cloud coding (PCC) implemented by a video decoder. The method includes receiving an encoded bitstream including a group of frames header, the group of frames header specifying a profile and a level of the encoded bitstream, and decoding the encoded bitstream.
    Type: Application
    Filed: December 21, 2023
    Publication date: June 13, 2024
    Inventor: Ye-Kui Wang
  • Adaptation Parameter Set Types in Video Coding
    Publication number: 20240195961
    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a first adaptation parameter set (APS) network abstraction layer (NAL) unit including an adaptive loop filter (ALF) type, a second APS NAL unit including a scaling list type, a third APS NAL unit including a luma mapping with chroma scaling (LMCS) type, and a slice. The mechanism further includes obtaining ALF parameters from the first APS NAL unit, obtaining scaling list parameters from the second APS NAL unit, and LMCS parameters from the third APS NAL unit. The mechanism further includes decoding the slice using the ALF parameters, the scaling list parameters, and the LMCS parameter. The mechanism further includes forwarding the slice for display as part of a decoded video sequence.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 13, 2024
    Inventors: Ye-Kui Wang, FNU Hendry, Jianle Chen
  • LUMA MAPPING WITH CHROMA SCALING ADAPTATION PARAMETER SET IN VIDEO CODING
    Publication number: 20240195958
    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a slice and a luma mapping with chroma scaling (LMCS) adaptation parameter set (APS) including LMCS parameters. The mechanism further includes determining that the LMCS APS is referenced in data related to the slice. The mechanism further includes decoding the slice using LMCS parameters from the LMCS APS based on the reference to the LMCS APS. The mechanism further includes forwarding the slice for display as part of a decoded video sequence.
    Type: Application
    Filed: December 20, 2023
    Publication date: June 13, 2024
    Inventors: Ye-Kui Wang, FNU Hendry, Jianle Chen
  • Tile Based Addressing In Video Coding
    Publication number: 20240196021
    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream including image data coded in a plurality of slices. A top left tile identifier (ID) and a bottom right tile ID of a first slice are determined. Boundaries of the first slice are determined based on the top left tile ID and the bottom right tile ID. The first slice is decoded to generate a reconstructed image based on the boundaries of the first slice.
    Type: Application
    Filed: December 20, 2023
    Publication date: June 13, 2024
    Inventors: Ye-Kui Wang, FNU Hendry, Jianle Chen
  • Transform skip residual coding
    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
  • Collocated picture indication in video bitstreams
    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
  • Liquid crystal composition, liquid crystal display element and liquid crystal display
    Patent number: 12006462
    Abstract: The present invention belongs to the technical field of liquid crystal materials, and in particular relates to a liquid crystal composition and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. The present invention discloses a liquid crystal composition, comprising one or more compounds represented by Formula I, one or more compounds represented by Formula II, and one or more compounds represented by Formula III. The liquid crystal composition of the present invention has a large optical anisotropy and a small ratio of ?1/K11, and can be used for developing a liquid crystal display element or liquid crystal display with a low cell thickness and a fast response.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: June 11, 2024
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
    Inventors: Sumin Kang, Zhian Liang, Kui Wang, Guoliang Yun, Wei Zhang
  • SLICE TYPE IN VIDEO CODING
    Publication number: 20240187627
    Abstract: Methods and apparatus for video processing are described. The video processing may include video encoding, video decoding or video transcoding. One example video processing method includes performing a conversion between a video including one or more pictures including one or more slices and a coded representation of the video, wherein the coded representation conforms to a format rule that specifies that a condition of a field in the coded representation controls a constraint on a slice type or whether the slice type is included in the coded representation for a video slice, wherein the field includes a general constraint flag, a network abstraction layer unit type or whether the video slice is in a first video picture of an access unit.
    Type: Application
    Filed: December 29, 2023
    Publication date: June 6, 2024
    Inventors: Ye-kui Wang, Li Zhang
  • COMPOSITE PREMIX COMPOSITION FOR IMPROVING MILK PRODUCTION OF LACTATING AND METHODS THEREOF
    Publication number: 20240180200
    Abstract: A composite premix composition is prepared from tannic acid, Litsea cubeba essential oil (LEO), selenium, and vitamin E.
    Type: Application
    Filed: April 26, 2023
    Publication date: June 6, 2024
    Inventors: Liangliang Zhang, Jianchun Jiang, XiaoPing Rao, Liming Lu, Kang Sun, Kui Wang, Jia Wang
  • Sub-Picture Based Random Access
    Publication number: 20240187610
    Abstract: A method of decoding a coded video bitstream implemented by a video decoder is provided. The method includes receiving, by a receiver of the video decoder, a mixed intra random access point (IRAP) picture including a first sub-picture and a second sub-picture, wherein the first sub-picture is an IRAP picture and the second sub-picture is a non-IRAP sub-picture; receiving, by the receiver; a reference picture list (RPL) for the mixed IRAP picture; decoding, by a processor of the video decoder, the second sub-picture using the RPL; and generating, by the processor, an image based on the second sub-picture as decoded. A corresponding encoding method is also provided.
    Type: Application
    Filed: October 31, 2023
    Publication date: June 6, 2024
    Inventors: FNU Hendry, Ye-Kui Wang
  • Reference picture management in layered video coding
    Patent number: 12003700
    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a current picture and a reference picture list structure comprising an inter-layer reference picture flag. The mechanism determines an entry in the reference picture list structure associated with the current picture is an inter-layer reference picture (ILRP) entry based on the inter-layer reference picture flag. The current picture is decoded based on an inter-layer reference picture indicated by the entry in the reference picture list structure when the entry is the ILRP entry. The current picture is forwarded for display as part of a decoded video sequence.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: June 4, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ye-Kui Wang, FNU Hendry
  • Video decoder initialization information signaling
    Patent number: 12003777
    Abstract: A mechanism for processing video data is disclosed. Video decoder initialization information (DII) is determined. The DII includes data describing a maximum level (MaxLevel) to which all coded video sequences (CVSs) of the bitstream conform and a maximum format that comprises one or more parameters. The MaxLevel indicates a first maximum DPB size needed for decoding the bitstream. The maximum format indicates a second maximum DPB size, denoted as DPB memory for as maximum format (DpbMemory4MaxFormat), determined by simultaneously setting all parameters of the maximum format to largest values. The DII further comprises a first indication of whether the DpbMemory4MaxFormat exceeds the first maximum DPB size. A conversion is performed between a visual media data and a bitstream based on the indication.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: June 4, 2024
    Inventor: Ye-kui Wang
  • File format signaling of error mitigation in sub-picture bitstream based viewport dependent video coding
    Patent number: 12003701
    Abstract: A video coding mechanism for viewpoint dependent video coding is disclosed. The mechanism includes mapping a spherical video signal, stitched from multiple directional video signals, into a plurality of sub-picture video signals each containing a sequence of sub-pictures. The plurality of sub-picture video signals are encoded as a plurality of sub-picture bitstreams. The plurality of sub-picture bitstreams are composed into a plurality of sub-picture tracks to be compatible with a multi-bitstream merge function for reconstruction of the spherical video signal. A track level mergable indication is encoded within a track level box for the sub-picture tracks, which indicates the sub-picture tracks are compatible with the multi-bitstream merge function for reconstruction of the spherical video signal.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: June 4, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ye-Kui Wang, Huameng Fang, Yuqun Fan, Jianle Chen
  • COMBINATION OF SUBPICTURES AND SCALABILITY
    Publication number: 20240179350
    Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a subpicture in a video picture of a video and a bitstream of the video according to a rule. The rule specifies that, in in case a subpicture is treated as a video picture for the conversion, a cross-layer alignment restriction is applied to less than all of the multiple layers including a current layer that includes the subpicture and a subset of layers associated with the current layer.
    Type: Application
    Filed: December 1, 2023
    Publication date: May 30, 2024
    Inventors: Ye-kui Wang, Li Zhang, Kai Zhang, Zhipin Deng