Patents by Inventor Xiang Liu

Xiang Liu 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).

  • Publication number: 20210329231
    Abstract: A method of signaling an intra prediction mode used to encode a current block in an encoded video bitstream includes generating a first most probable mode (MPM) list corresponding to a zero reference line of the current block, wherein the first MPM list includes a first plurality of intra prediction modes; generating a second MPM list corresponding to one or more non-zero reference lines of the current block, wherein the second MPM list includes a second plurality of intra prediction modes, the second plurality of intra prediction modes including a subset of the first plurality of intra prediction modes; signaling a reference line index indicating a reference line used to encode the current block; and signaling an intra mode index indicating the intra prediction mode from among the first MPM list and the second MPM list.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 21, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Liang ZHAO, Xin ZHAO, Xiang LI, Shan LIU
  • Publication number: 20210329228
    Abstract: A method of controlling intra-inter prediction for decoding or encoding of a video sequence, is performed by at least one processor. The method includes determining whether one or more neighboring blocks in a video sequence is coded by an intra prediction mode, coding a prediction mode flag of a current block by a first context based on determining that at least one of the neighboring blocks is coded by the intra prediction mode, and coding the prediction mode flag of the current block by a second context based on determining that none of the neighboring blocks are coded by at least the intra prediction mode.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Xin ZHAO, Xiang LI, Shan LIU
  • Publication number: 20210324404
    Abstract: The present invention relates to an herbicide tolerance protein, an encoding gene thereof and use thereof, the herbicide tolerance protein comprising: a protein (a) having an amino acid sequence as shown in SEQ ID NO: 1, and having an alanine substitution at least at position 176 and/or having a valine substitution at position 178 of SEQ ID NO: 1; or (b) having an amino acid sequence as shown in SEQ ID NO: 3; or (c) having an amino acid sequence as shown in SEQ ID NO: 5; or (d) having an amino acid sequence as shown in SEQ ID NO: 7; or (e) being derived from (a) by means of the amino acid sequence of (a) undergoing substitution and/or deletion and/or by added one or several amino acids, and having the activity of thifensulfuron hydrolase. The herbicide tolerance protein of the present invention has a broad application prospects in plants.
    Type: Application
    Filed: December 28, 2018
    Publication date: October 21, 2021
    Inventors: Jian He, Bin Liu, Qian Peng, Qing Tao, Xiang Xiao, Xiaoming Bao
  • Publication number: 20210329271
    Abstract: A method for video decoding in a decoder is provided. In the method, first signaling information and second signaling information is determined from a coded video bitstream of a coded region. The first signaling information is indicative of a first maximum transform size of the coded region of a first prediction mode, and the second signaling information is indicative of a second maximum transform size of the coded region of a second prediction mode. Further, whether transform signaling information is included in the coded video bitstream is determined based on the first signaling information and the second signaling information. The transform signaling information indicates whether an adaptive color transform (ACT) is applied on the coded region. The coded region is subsequently decoded based on the transform signaling information.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 21, 2021
    Applicant: Tencent America LLC
    Inventors: Xin ZHAO, Lien-Fei CHEN, Xiang LI, Shan LIU
  • Publication number: 20210322980
    Abstract: A whole-process biological detection device is provided. The whole-process biological detection device belongs to the technical field of biological detection, and includes at least one reactor, where the reactor includes at least one sample-loading unit, at least one liquid release-control unit, at least one extraction unit, at least one liquid switch-control unit, at least one liquid collection unit, at least one liquid transfer unit, at least one liquid flow-control unit, at least one liquid quantitative dispersion unit and multiple reaction cells. The product of the solution has the characteristics of high integration, no need for additional reagents, simple operation, stable and reliable, etc., thereby achieving the goal of sealing the whole process of biological detection and effectively avoiding cross-contamination between samples and equipment.
    Type: Application
    Filed: March 1, 2021
    Publication date: October 21, 2021
    Inventors: Lei WANG, Liang BAI, Xiang CHEN, Tengfei GUO, Xinying ZHOU, Jing CHENG, Fei WEN, Yanan WANG, Longtang ZHENG, Peng LIU, Baolian LI, Youchun XU, Bin ZHUANG, Wanli XING
  • Publication number: 20210323767
    Abstract: A transferring robot is disclosed in the disclosure. The transferring robot includes a movable chassis configured to move along a path among adjacent warehouse storage containers; a temporary storage shelf provided on the movable chassis, the temporary storage shelf being configured to store a target case; a fetching assembly provided on the movable chassis, the fetching assembly being configured to extend or retract horizontally relative to the movable chassis, so as to realize fetching and placing of the target case between the storage containers and the temporary storage shelf, where a direction along which the fetching assembly extends or retracts horizontally is perpendicular to a moving direction. A warehousing and logistics system includes the foregoing transferring robot. The disclosure further discloses a warehousing system and an item transferring method.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 21, 2021
    Inventors: Kai LIU, Langlang SUN, Yan TANG, Kun WANG, Yuhui XIAO, Xiang LIU
  • Patent number: 11153590
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. The processing circuitry decodes prediction information of a current block in a current picture from a coded video bitstream. The prediction information is indicative of an inter prediction mode. Then, the processing circuitry determines a usage of a first DMVD process on the current block at least partially based on a second DMVD process not being used on the current block. Further, the processing circuitry reconstructs the current block according to the inter prediction mode with the first DMVD process.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: October 19, 2021
    Assignee: Tencent America LLC
    Inventors: Meng Xu, Xiang Li, Shan Liu
  • Patent number: 11148245
    Abstract: The present invention provides a multi-degree-of-freedom error measurement system for rotary axes and the method thereof. By producing a first ray, a second ray, and a third ray, the multi-facet reflector and the axicon disposed on an axis average line can receive the first, the second, and the third rays, respectively, for producing a reflective ray, a refractive ray, a first emitted ray, and a second emitted ray. Thereby, errors of the axicon in a plurality of degrees of freedom caused by shift or vibration of the axis average line, such as the x-axis radial error, the y-axis radial error, the axial error, the x-axis tilt error, the tilt error for the y-axis, and the angular alignment error for rotation can be measured.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: October 19, 2021
    Assignee: National Chung Cheng University
    Inventors: Chien-Sheng Liu, Yu-Ta Chen, Yu-Xiang Lin
  • Patent number: 11153591
    Abstract: A method of video decoding performed in a video decoder. The method including receiving a coded video bitstream including a current picture. The method further including, performing an inverse quantization on a current block included in the current picture. The method further including performing, after performing the inverse quantization, an inverse transform on the current block. The method further including performing a prediction process on the current block after performing the inverse transform. The method further including, after performing the prediction process on the current block, determining whether a predetermined condition is satisfied. The method further including, in response to determining that the predetermined condition is met, performing an inverse color transform on the current block.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: October 19, 2021
    Assignee: Tencent America LLC
    Inventors: Xin Zhao, Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 11153597
    Abstract: In a method for video decoding in a decoder, a first motion vector and a second motion vector for a first block in a current picture are received. The first motion vector is indicative of a first reference block in a first picture, and the second motion vector is indicative of a second reference block in a second picture. A bilateral template is generated based on a weighted combination of the first reference block and the second reference block. A refined first motion vector and a refined second motion vector are determined based on the bilateral template, reference blocks in the first picture and reference blocks in the second picture respectively. An initial motion vector of a second block that is coded after the first block is determined according to at least one of the first motion vector and the second motion vector for the first block.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: October 19, 2021
    Assignee: Tencent America LLC
    Inventors: Meng Xu, Xiang Li, Shan Liu
  • Patent number: 11153598
    Abstract: Aspects of the disclosure provide methods and an apparatus for video coding. The apparatus includes processing circuitry that decodes coding information of a current block (CB) from a coded video bitstream. The coding information indicates that the CB is coded with a subblock-based affine motion model including affine parameters that are based on multiple control point motion vectors (MVs) for the CB. The processing circuitry determines, based on the coding information, whether to select a subblock characteristic for generating a prediction for a sample in an affine subblock of the CB based on a corresponding subblock MV. In response to selecting the subblock characteristic, the processing circuitry determines the subblock characteristic based on at least one of the affine parameters. The subblock characteristic indicates one of: (i) a subblock size used for generating the prediction for the sample and (ii) an interpolation filter type for the affine subblock.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: October 19, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Guichun Li, Xiang Li, Xiaozhong Xu, Shan Liu
  • Publication number: 20210319373
    Abstract: The invention relates to an intelligent multi-pollutant ultra-low emission system and a global optimization method thereof. The intelligent multi-pollutant ultra-low emission system comprises a device layer, a sensing layer, a control layer and an optimization layer from bottom to top.
    Type: Application
    Filed: October 30, 2019
    Publication date: October 14, 2021
    Inventors: XIANG GAO, CHENGHANG ZHENG, YUEQI HUANG, YISHAN GUO, YONGXIN ZHANG, WEIGUO WENG, WEIHONG WU, RUIYANG QU, SHAOJUN LIU, HAITAO ZHAO
  • Publication number: 20210321124
    Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes prediction information for a current block in a current picture. The prediction information can indicate whether an adaptive color transform (ACT) is enabled for the current block. The processing circuitry determines a maximum transform size based on whether the ACT is enabled for the current block. The processing circuitry can determine whether a subblock transform (SBT) is applied to the current block based at least on the maximum transform size, and perform the SBT on the current block based on the SBT being determined to be applied to the current block. The maximum transform size is determined to be a first maximum transform size when the ACT is disabled for the current block and a second maximum transform size when the ACT is enabled for the current block.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 14, 2021
    Applicant: Tencent America LLC
    Inventors: Lien-Fei CHEN, Xiang LI, Shan LIU
  • Publication number: 20210321103
    Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes prediction information for a current block in a current picture that is a part of a coded video sequence. The prediction information includes a first syntax element indicating whether both quantization parameter (QP) information of a luma component and QP information of a chroma component of the current block are included in the prediction information. The processing circuitry determines a QP of the chroma component based on the QP information of the luma component and the QP information of the chroma component based on the first syntax element indicating that both the QP information of the luma component and the QP information of the chroma component are included in the prediction information. The processing circuitry reconstructs the current block based on the QP of the chroma component.
    Type: Application
    Filed: March 24, 2021
    Publication date: October 14, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Ling LI, Xiang LI, Shan LIU
  • Publication number: 20210318280
    Abstract: The present disclosure relates to a computer-implemented method for forecasting calibration spectra including a step of providing a machine learning model trained using historical calibration data corresponding to different gas species at different pressures. The computer-implemented method also includes steps of performing a calibration scan of one gas species at one pressure using an analyzer and generating calibration curves for the analyzer corresponding to one or multiple gas species at multiple pressures using the machine learning model and the calibration scan. Thereafter, a spectrum is obtained using the analyzer, and a concentration measurement is generated using the spectrum and at least one of the calibration curves.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 14, 2021
    Inventors: Kevin Ludlum, Marc Winter, Benjamin Scherer, Xiang Liu
  • Publication number: 20210320292
    Abstract: A [PxSbyMz]p/[carbon]q composite where x, y, and z represent atomic percentage values and are x>0; y>0; and z?0, M is an electrically conductive metal, p and q represent the weight percentage values of the composite wherein p and q are in the range of 0-100%, and is p>0.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 14, 2021
    Inventors: Guiliang Xu, Xiang Liu, Khalil Amine
  • Publication number: 20210321130
    Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes profile information for a plurality of image slices in prediction information of a coded video bitstream. The profile information includes profile identification information of a profile in which each of the image slices in the coded video bitstream is intra coded. The processing circuitry performs intra prediction on each of the image slices in the coded video bitstream. Further, the processing circuitry reconstructs at least one image picture based on the intra prediction.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 14, 2021
    Applicant: TENCENT AMERICA LLC
    Inventors: Ling LI, Byeongdoo Choi, Xiang Li, Stephan Wenger, Shan Liu
  • Patent number: 11146800
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes processing circuitry that decodes prediction information for a plurality of first blocks in a current coded picture that is a part of a coded video sequence. The prediction information indicates that the plurality of first blocks is coded in a local illumination compensation (LIC) mode. The processing circuitry selects a neighboring region for each of the plurality of first blocks. The selected neighboring region and the respective first block form a second block. The processing circuitry performs an inter prediction for the plurality of second blocks in parallel. The processing circuitry determines a set of LIC parameters for each of the plurality of first blocks based on the selected neighboring region of the respective first block and reconstructs the plurality of first blocks based on the sets of LIC parameters.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: October 12, 2021
    Assignee: Tencent America LLC
    Inventors: Xiang Li, Xin Zhao, Xiaozhong Xu, Shan Liu, Meng Xu
  • Patent number: 11146805
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. In some embodiments, the processing circuitry decodes prediction information of a current block in a current coding from a coded video bitstream. The prediction information is indicative of an intra block copy mode. Then, the processing circuitry determines a block vector that points to a reference block in a same picture as the current block. The reference block is restricted within a coding region with reconstructed samples buffered in a reference sample memory. The coding region is one of multiple predefined regions of a coding tree unit (CTU). Then, the processing circuitry reconstructs at least a sample of the current block based on the reconstructed samples of the reference block that are retrieved from the reference sample memory.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: October 12, 2021
    Assignee: Tencent America LLC
    Inventors: Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 11146813
    Abstract: Prediction information of a current block is decoded. The prediction information indicates an affine merge model, and the current block includes control points. A first candidate control point motion vector (CPMV) for a first control point of the control points is determined based on one of at least two CPMVs of a first neighboring block of the first control point and a translational motion vector of a second neighboring block of the first control point. Affine merge candidates for the current block are derived based on candidate CPMVs for the control points of the current block. The candidate CPMVs of the control points includes the first candidate CPMV. Parameters of the affine merge model are determined based on one of the affine merge candidates that is defined according to the prediction information. At least a sample of the current block is reconstructed according to the affine merge model.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: October 12, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Guichun Li, Xiaozhong Xu, Xiang Li, Shan Liu