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).

  • Constraints on signaling of hypothetical reference decoder parameters in video bitstreams
    Patent number: 11743505
    Abstract: A method of video processing includes performing a conversion between a video and a bitstream of the video, wherein the bitstream includes one or more output layer sets (OLSs) each including one or more video layers, wherein the bitstream conforms to a format rule. The format rule specifies whether or how a first syntax element indicating whether a first syntax structure descriptive of parameters of a hypothetical reference decoder (HRD) used for the conversion is included in a video parameter set (VPS) of the bitstream.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: August 29, 2023
    Assignee: BYTEDANCE INC.
    Inventor: Ye-kui Wang
  • Deblocking signaling in video coding
    Patent number: 11743506
    Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding or video transcoding. One example method of video processing includes A method of video processing, including: performing a conversion between a video region of a video and a bitstream of the video according to a format rule, and wherein the format rule specifies that an applicability of a deblocking filter for the video region is determined based on syntax elements at i) a picture parameter set level and ii) a picture level or a slice level.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: August 29, 2023
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC
    Inventors: Zhipin Deng, Li Zhang, Ye-kui Wang, Kai Zhang, Jizheng Xu
  • ROLL SAMPLE GROUP IN VVC VIDEO CODING
    Publication number: 20230269384
    Abstract: A mechanism for processing video data is disclosed. A conversion is performed between a visual media data and a visual media data file. The visual media data file includes pictures in layers, a random access recovery point (roll) sample group specifying access points into the layers, and a grouping type parameter. The grouping type parameter specifies a correspondence between the access points and relevant layers of the layers. The grouping type parameter includes a layer identifier method identification code parameter specifying that the access points include one or more of: one or more gradual decoding refresh (GDR) pictures; and one or more mixed network abstraction layer (NAL) unit pictures with both an intra random access point (IRAP) subpicture and a non-IRAP subpicture.
    Type: Application
    Filed: April 26, 2023
    Publication date: August 24, 2023
    Inventors: Ye-Kui Wang, Li Zhang, Haibin Yin, Lingyu Li
  • SEI Message Dependency Simplification In Video Coding
    Publication number: 20230269389
    Abstract: A video coding mechanism is disclosed. The mechanism includes encoding a coded picture into a bitstream. A current supplemental enhancement information (SEI) message that comprises a decoding unit (DU) hypothetical reference decoder (HRD) parameters present flag (du_hrd_params_present_flag) is also encoded into the bitstream. The du_hrd_params_present_flag specifies whether DU level HRD parameters are present in the bitstream. A set of bitstream conformance tests is performed on the bitstream based on the current SEI message. The bitstream is stored for communication toward a decoder.
    Type: Application
    Filed: April 21, 2023
    Publication date: August 24, 2023
    Inventor: Ye-Kui Wang
  • Constraints on collocated pictures in video coding
    Patent number: 11736734
    Abstract: Methods, devices and systems for video coding and encoding, which include conforming to constraints on collocated pictures, are described. One example method of video processing includes performing a conversion between a video including a current picture and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that the bitstream includes a flag for disabling a use of a temporal motion vector prediction tool for the current picture based on whether a reference picture in a decoded picture buffer has a spatial resolution and a scaling window offset that are identical to that of the current picture.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: August 22, 2023
    Assignee: Bytedance Inc.
    Inventors: Ye-kui Wang, Li Zhang
  • DECODER CONFIGURATION INFORMATION IN VVC VIDEO CODING
    Publication number: 20230262239
    Abstract: A mechanism for processing video data is disclosed. A conversion is performed between a visual media data and a visual media data file. The visual media data file includes a versatile video coding (VVC) decoder configuration record and a plurality of pictures coded into one or more sublayers, wherein the VVC decoder configuration record comprises a number of the one or more sublayers and one or more VVC profile tier level (PTL) records for the one or more sublayers based on the number of the one or more sublayers.
    Type: Application
    Filed: April 25, 2023
    Publication date: August 17, 2023
    Inventors: Ye-Kui Wang, Li Zhang, Haibin Yin, Lingyu Li
  • Chroma format and bit depth indication in coded video
    Patent number: 11729427
    Abstract: Systems, methods and apparatus for processing visual media data are described. One example method includes performing a conversion between visual media data and a visual media file including one or more tracks storing one or more bitstreams of the visual media data according to a format rule; wherein the format rule specifies whether a first element indicative of whether a track contains a bitstream corresponding to a specific output layer set controls whether a second element indicative of a chroma format of the track and/or a third element indictive of a bit depth information of the track is included in a configuration record of the track.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: August 15, 2023
    Assignee: LEMON INC.
    Inventor: Ye-Kui Wang
  • Filter parameter signaling in video picture headers
    Patent number: 11729430
    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 picture of a video and a bitstream of the video. A first syntax element in a first video unit level specifying a deblocking parameter offset for ? divided by 2 applied to a chroma component for one or more slices in a first video unit and a second syntax element in the first video unit level specifying a deblocking parameter offset for tC divided by 2 applied to the chroma component for the one or more slices in the first video unit are determined according to a rule in response to the first syntax element and the second syntax element not included in the bitstream.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: August 15, 2023
    Assignee: Bytdance Inc.
    Inventors: Ye-kui Wang, Jizheng Xu
  • Tile group signaling in video coding
    Patent number: 11729401
    Abstract: An encoding device configured to encode a flag, that indicates whether tile information for a picture having a tile group is present in a parameter set of a video bitstream or in a slice header of the video bitstream, into the video bitstream, encode the tile information in the parameter set when the flag indicates the tile information for the picture is encoded in the parameter set, and encode the tile information in the slice header when the flag indicates the tile information for the picture is encoded in the slice header.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: August 15, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Fnu Hendry, Ye-Kui Wang
  • Explicit address signaling in video coding
    Patent number: 11729384
    Abstract: A video coding mechanism is disclosed. The mechanism includes receiving a sub-bitstream including: a sub-picture of a picture partitioned into a plurality of slices including a first slice, a parameter set associated with the picture and the sub-picture, and a slice header associated with the first slice. The parameter set is parsed to obtain an identifier and a length of a slice address of the first slice. A slice address for the first slice is determined from the slice header based on the identifier and the length of the slice address. The sub-bitstream is decoded to create a video sequence of sub-pictures including the first slice. The video sequence of sub-pictures is forwarded for display.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: August 15, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: FNU Hendry, Ye-Kui Wang
  • OPTICAL SENSOR PACKAGE STRUCTURE AND ELECTRONIC DEVICE
    Publication number: 20230246012
    Abstract: Disclosed are an optical sensor package structure and a device. The optical sensor package structure includes a substrate, a signal processing chip, a photodiode and a potting adhesive layer. The signal processing chip provided on a surface of the substrate is provided with a conductive through hole, and the signal processing chip is electrically connected to the substrate via the conductive through hole. The photodiode provided on a surface of the signal processing chip away from the substrate is electrically connected to the substrate via the conductive through hole. The potting adhesive layer is for wrapping the signal processing chip and the photodiode, and an elongation at break of the potting adhesive layer is greater than 40%.
    Type: Application
    Filed: December 10, 2020
    Publication date: August 3, 2023
    Inventors: Kui WANG, Dexin WANG, Yanmei SUN, Haiqiang SONG
  • Harmonization of Raster Scan And Rectangular Tile Groups In Video Coding
    Publication number: 20230247208
    Abstract: A video coding mechanism is disclosed. The mechanism includes partitioning a picture into a plurality of tiles. A number of the tiles are included in a tile group. A flag is also encoded into a parameter set of a bitstream. The flag is set to a first value when the tile group is a raster scan tile group and a second value when the tile group is a rectangular tile group. The tiles are encoded into the bitstream based on the tile group. The bitstream is stored for communication toward a decoder.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 3, 2023
    Inventors: FNU Hendry, Ye-Kui Wang
  • PICTURE PARTITIONING IN VIDEO CODING
    Publication number: 20230246834
    Abstract: Methods, systems, and devices for media processing are described. One example method of processing digital media includes performing a conversion between a media segment and a bitstream of the media segment, the conversion conforming to a format rule and an encryption rule, and the format rule specifying that an indication of an integrity of a portion of the media segment is signaled in the bitstream. In an example, the media segment is a video segment, an audio segment, or an image.
    Type: Application
    Filed: March 29, 2023
    Publication date: August 3, 2023
    Inventors: Jizheng Xu, Ye-kui Wang, Li Zhang, Kai Zhang
  • TECHNIQUES FOR IMPLEMENTING A DECODING ORDER WITHIN A CODED PICTURE
    Publication number: 20230239483
    Abstract: A method for video processing is described. The method includes performing a conversion between a video including one or more pictures including one or more subpictures including one or more slices and a bitstream representation of the video according to a rule, and wherein the bitstream representation includes a number of coded units, wherein the rule specifies that a decoding order of coded units within a subpicture is in an increasing order of subpicture level slice index values of the coded units.
    Type: Application
    Filed: April 3, 2023
    Publication date: July 27, 2023
    Inventor: Ye-Kui Wang
  • SIGNALLING OF MULTIVIEW INFORMATION
    Publication number: 20230239502
    Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of processing video data includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that a supplemental enhancement information field or a video usability information syntax structure included in the bitstream indicates whether the bitstream comprises a multiview bitstream in which multiple views are coded in multiple video layers.
    Type: Application
    Filed: March 29, 2023
    Publication date: July 27, 2023
    Inventors: Ye-Kui Wang, Li Zhang, Kai Zhang, Zhipin Deng
  • SIGNALLING OF AUXILIARY INFORMATION
    Publication number: 20230239511
    Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of processing video data includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that a supplemental enhancement information field included in the bitstream indicates whether the bitstream comprises one or more video layers that represent auxiliary information.
    Type: Application
    Filed: March 29, 2023
    Publication date: July 27, 2023
    Inventors: Ye-Kui Wang, Li Zhang, Kai Zhang, Zhipin Deng
  • Decoding capability information storage in video coding
    Patent number: 11711518
    Abstract: Systems, methods and apparatus for encoding or decoding a file format that stores one or more images are described. One example method includes performing a conversion between a visual media file and a bitstream of a visual media data according to a format rule, where the format rule specifies that a type of a sample entry determines whether decoding capability information network abstraction layer units are included in either the sample entry of a video track in the visual media file or in a sample of the video track and the sample entry of the video track in the visual media file.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: July 25, 2023
    Assignee: Lemon Inc.
    Inventor: Ye-Kui Wang
  • Sub-bitstream Extraction
    Publication number: 20230232029
    Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of video processing includes performing a conversion between a video and a bitstream of the video, wherein the bitstream conforms to an order of a sub-bitstream extraction process that is defined by a rule that specifies (a) the sub-bitstream extraction process excludes an operation that removes all supplemental enhancement information (SEI) network abstraction layer (NAL) units, which satisfy a condition, from an output bitstream or (b) the order of the sub-bitstream extraction process includes replacing parameter sets with replacement parameter sets prior to removing, from an output bitstream, the SEI NAL units.
    Type: Application
    Filed: March 27, 2023
    Publication date: July 20, 2023
    Inventors: Ye-Kui Wang, Zhipin Deng
  • Nested and Non-Nested SEI Messages In Video Bitstreams
    Publication number: 20230232030
    Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of video processing includes performing a conversion between a video and a bitstream of the video including multiple layers, wherein the bitstream includes a plurality of supplemental enhancement information, SEI, messages associated with an access unit, AU, or a decoding unit, DU, of a particular output layer set, OLS, or a particular layer, wherein the plurality of SEI messages, including a message type different from scalable nesting type, is based on a format rule, and wherein the format rule specifies that each of the plurality of SEI messages has a same SEI payload content due to the plurality of SEI messages being associated with the AU or the DU of the particular OLS or the particular layer.
    Type: Application
    Filed: March 27, 2023
    Publication date: July 20, 2023
    Inventors: Ye-Kui Wang, Zhipin Deng
  • High-level syntax designs for point cloud coding
    Patent number: 11706458
    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 disposed outside a coded representation of a texture component or a geometry component and identifying a video codec used for coding the texture component or the geometry component, and decoding the encoded bitstream.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: July 18, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Ye-Kui Wang