Patents by Inventor Yeqing Wu

Yeqing Wu 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: 20230188738
    Abstract: In an example method, a decoder obtains a data stream representing video content. The video content is partitioned into one or more logical units, and each of the logical units is partitioned into one or more respective logical sub-units. The decoder determines that the data stream includes first data indicating that a first logical unit has been encoded according to a flexible skip coding scheme. In response, the decoder determines a first set of decoding parameters based on the first data, and decodes each of the logical sub-units of the first logical unit according to the first set of decoding parameters.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 15, 2023
    Inventors: Alican Nalci, Alexandros Tourapis, Hilmi Enes Egilmez, Hsi-Jung Wu, Jun Xin, Yeqing Wu, Yixin Du, Yunfei Zheng
  • Publication number: 20230142771
    Abstract: A filtering system for video coders and decoders is disclosed that includes a feature detector having an input for samples reconstructed from coded video data representing a color component of source video, and having an output for data identifying a feature recognized therefrom, an offset calculator having an input for the feature identification data from the feature detector and having an output for a filter offset, and a filter having an input for the filter offset from the offset calculator and an input for the reconstructed samples, and having an output for filtered samples. The filtering system is expected to improve operations of video coder/decoder filtering systems by selecting filtering offsets from analysis of recovered video data in a common color plane as the samples that will be filtered.
    Type: Application
    Filed: November 2, 2022
    Publication date: May 11, 2023
    Inventors: Yixin DU, Alexandros TOURAPIS, Yunfei ZHENG, Jun XIN, Mukta S. Gore, Alican NALCI, Mei T. GUO, Yeqing WU, Hsi-Jung WU
  • Publication number: 20230143147
    Abstract: A cross-component based filtering system is disclosed for video coders and decoders. The filtering system may include a filter having an input for a filter offset and an input for samples reconstructed from coded video data representing a native component of source video on which the filter operates. The offset may be generated at least in part from a sample classifier that classifies samples reconstructed from coded video data representing a color component of the source video orthogonal to the native component according to sample intensity.
    Type: Application
    Filed: November 2, 2022
    Publication date: May 11, 2023
    Inventors: Yixin DU, Alexandros TOURAPIS, Yunfei ZHENG, Jun XIN, Alican NALCI, Mei T. GUO, Yeqing WU, Hsi-Jung WU
  • Publication number: 20230096567
    Abstract: Improved neural-network-based image and video coding techniques are presented, including hybrid techniques that include both tools of a host codec and neural-network-based tools. In these improved techniques, the host coding tools may include conventional video coding standards such H.266 (VVC). In an aspects, source frames may be partitioned and either host or neural-network-based tools may be selected per partition. Coding parameter decisions for a partition may be constrained based on the partitioning and coding tool selection. Rate control for host and neural network tools may be combined. Multi-stage processing of neural network output may use a checkerboard prediction pattern.
    Type: Application
    Filed: September 23, 2022
    Publication date: March 30, 2023
    Inventors: Alican NALCI, Alexandros TOURAPIS, Hsi-Jung WU, Jiefu ZHAI, Jingteng XUE, Jun XIN, Mei GUO, Xingyu ZHANG, Yeqing WU, Yunfei ZHENG, Jean Begaint
  • Publication number: 20220360814
    Abstract: An encoder or decoder can perform enhanced motion vector prediction by receiving an input block of data for encoding or decoding and accessing stored motion information for at least one other block of data. Based on the stored motion information, the encoder or decoder can generate a list of one or more motion vector predictor candidates for the input block in accordance with an adaptive list construction order. The encoder or decoder can predict a motion vector for the input block based on at least one of the one or more motion vector predictor candidates.
    Type: Application
    Filed: May 4, 2022
    Publication date: November 10, 2022
    Inventors: Yeqing Wu, Alexandros Tourapis, Yunfei Zheng, Hsi-Jung Wu, Jun Xin, Albert E. Keinath, Mei Guo, Alican Nalci
  • Publication number: 20220272360
    Abstract: An apparatus includes processing circuitry, which determines a block vector that points to a reference block in a same picture as a current block in an intra block copy mode. The current block is one of a plurality of coding blocks in a coding tree block (CTB) with a right to left coding order being allowed within the CTB. The processing circuitry checks that two corner samples of the reference block have been reconstructed based on first outputs from a derivation process for block availability. The processing circuitry checks that a non corner sample of the reference block has been reconstructed based on a second output from the derivation process. The processing circuitry encodes the current block based on reconstructed samples of the reference block after a determination that the two corner samples of the reference block and the non corner sample of the reference block have been reconstructed.
    Type: Application
    Filed: May 11, 2022
    Publication date: August 25, 2022
    Applicant: Tencent America LLC
    Inventors: Yeqing WU, Xiaozhong XU, Xiang LI, Shan LIU
  • Patent number: 11363279
    Abstract: An apparatus for video decoding includes processing circuitry. The processing circuitry decodes prediction information of a current block from a coded video bitstream. The prediction information is indicative of an intra block copy mode. The current block is one of a plurality of coding blocks in a coding tree block (CTB) with a right to left coding order being allowed within the CTB. Further, the processing circuitry determines a block vector that points to a reference block in a same picture as the current block and checks that two corner samples of the reference block of the reference block have been reconstructed. In addition, the processing circuitry checks that an additional sample of the reference block has been reconstructed. Then, the processing circuitry reconstructs at least a sample of the current block based on reconstructed samples of the reference block that are retrieved from the reference sample memory.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: June 14, 2022
    Assignee: Tencent America LLC
    Inventors: Yeqing Wu, Xiaozhong Xu, Xiang Li, Shan Liu
  • Publication number: 20220132174
    Abstract: An apparatus for video decoding includes processing circuitry. The processing circuitry decodes prediction information of a current block from a coded video bitstream. The prediction information is indicative of an intra block copy mode, the current block is one of a plurality of coding blocks in a coding tree block (CTB) with a right to left coding order being allowed within the current CTB. The processing circuitry determines a block vector that points to a reference block in a same picture as the current block. Then, the processing circuitry ensures the reference block being buffered in a reference sample memory based on at least a determination that a sample that is right of a leftmost sample of the reference block is buffered in the reference sample memory. Further, the processing circuitry reconstructs at least a sample of the current block based on reconstructed samples of the reference block.
    Type: Application
    Filed: January 5, 2022
    Publication date: April 28, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Yeqing WU, Xiaozhong XU, Xiang LI, Shan LIU
  • Patent number: 11252442
    Abstract: An apparatus for video decoding includes processing circuitry. The processing circuitry decodes prediction information of a current block from a coded video bitstream. The prediction information is indicative of an intra block copy mode, the current block is one of a plurality of coding blocks in a coding tree block (CTB) with a right to left coding order being allowed within the current CTB. The processing circuitry determines a block vector that points to a reference block in a same picture as the current block. Then, the processing circuitry ensures the reference block being buffered in a reference sample memory based on at least a determination that a sample that is right of a leftmost sample of the reference block is buffered in the reference sample memory. Further, the processing circuitry reconstructs at least a sample of the current block based on reconstructed samples of the reference block.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: February 15, 2022
    Assignee: Tencent America LLC
    Inventors: Yeqing Wu, Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 11094911
    Abstract: Provided are an organic light emitting diode display panel and packaging method thereof. The organic light emitting diode display panel is provided with an adhesive layer on a passivation layer corresponding to a position of a sealant. When packaging the organic light emitting diode, the sealant on a cover plate is adhered corresponding to a position of the adhesive layer. The adhesive layer has a good bonding force with the sealant and also has a good bonding force with the passivation layer. Thus, water vapor does not easily enter the organic light emitting diode element, which will not reduce the performance of the organic light emitting diode element to improve a service life of organic light emitting diode element and to possess a good reliability performance.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: August 17, 2021
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yeqing Wu
  • Publication number: 20210098736
    Abstract: Provided are an organic light emitting diode display panel and packaging method thereof. The organic light emitting diode display panel is provided with an adhesive layer on a passivation layer corresponding to a position of a sealant. As packaging the organic light emitting diode, the sealant on a cover plate is adhered corresponding to a position of the adhesive layer. The adhesive layer has a good bonding force with the sealant and also has a good bonding force with the passivation layer. Thus, water vapor does not easily enter the organic light emitting diode element, which will not reduce the performance of the organic light emitting diode element to improve a service life of organic light emitting diode element and to possess a good reliability performance.
    Type: Application
    Filed: September 12, 2018
    Publication date: April 1, 2021
    Inventor: Yeqing Wu
  • Publication number: 20200329248
    Abstract: An apparatus for video decoding includes processing circuitry. The processing circuitry decodes prediction information of a current block from a coded video bitstream. The prediction information is indicative of an intra block copy mode. The current block is one of a plurality of coding blocks in a coding tree block (CTB) with a right to left coding order being allowed within the CTB. Further, the processing circuitry determines a block vector that points to a reference block in a same picture as the current block and checks that two corner samples of the reference block of the reference block have been reconstructed. In addition, the processing circuitry checks that an additional sample of the reference block has been reconstructed. Then, the processing circuitry reconstructs at least a sample of the current block based on reconstructed samples of the reference block that are retrieved from the reference sample memory.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 15, 2020
    Applicant: Tencent America LLC
    Inventors: Yeqing WU, Xiaozhong XU, Xiang LI, Shan LIU
  • Publication number: 20200322644
    Abstract: An apparatus for video decoding includes processing circuitry. The processing circuitry decodes prediction information of a current block from a coded video bitstream. The prediction information is indicative of an intra block copy mode, the current block is one of a plurality of coding blocks in a coding tree block (CTB) with a right to left coding order being allowed within the current CTB. The processing circuitry determines a block vector that points to a reference block in a same picture as the current block. Then, the processing circuitry ensures the reference block being buffered in a reference sample memory based on at least a determination that a sample that is right of a leftmost sample of the reference block is buffered in the reference sample memory. Further, the processing circuitry reconstructs at least a sample of the current block based on reconstructed samples of the reference block.
    Type: Application
    Filed: April 7, 2020
    Publication date: October 8, 2020
    Applicant: Tencent America LLC
    Inventors: Yeqing WU, Xiaozhong XU, Xiang LI, Shan LIU
  • Patent number: 10091785
    Abstract: Systems and methods for managing spectrum handoff with multimedia transmissions over cognitive radio networks are disclosed. The methods may include, for example, determining when a primary user is inactive on the one or more frequencies. The methods may also include assigning a secondary user to the one or more frequencies while the primary user is inactive and detecting return by the primary user to the one or more frequencies. The secondary user may, in one embodiment, be interrupted and one or more second frequencies that are inactive may be identified. Further, the secondary user may transition to the one or more second frequencies to resume transmission or reception.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: October 2, 2018
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA
    Inventors: Fei Hu, Yeqing Wu
  • Patent number: 10021426
    Abstract: A cross-layer encoder for providing UEP encoding of video data configured to provide UEP encoding of video data at an application layer of a transmission channel by receiving video packets having first and second priority levels, applying first and second coding schemes to video packets having first and second priority levels, respectively, and transmitting video frames having first and second priority levels. The cross-layer encoder can be configured to provide UEP encoding of video data at a physical layer of the transmission channel by receiving encoded video frames having first and second priority levels, applying third and fourth coding schemes to video frames having first and second priority levels, respectively, and transmitting cross-layer encoded video frames having first and second priority levels. The first through fourth coding schemes can generate different percentages of the total coding overhead based on first and second priority levels, respectively.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: July 10, 2018
    Assignees: Board of Trustees of The University of Alabama, San Diego State University (SDSU) Foundation
    Inventors: Fei Hu, Yeqing Wu, Sunil Kumar
  • Publication number: 20150365871
    Abstract: Systems and methods for managing spectrum handoff with multimedia transmissions over cognitive radio networks are disclosed. The methods may include, for example, determining when a primary user is inactive on the one or more frequencies. The methods may also include assigning a secondary user to the one or more frequencies while the primary user is inactive and detecting return by the primary user to the one or more frequencies. The secondary user may, in one embodiment, be interrupted and one or more second frequencies that are inactive may be identified. Further, the secondary user may transition to the one or more second frequencies to resume transmission or reception.
    Type: Application
    Filed: June 11, 2015
    Publication date: December 17, 2015
    Inventors: Fei Hu, Yeqing Wu
  • Publication number: 20150078460
    Abstract: A cross-layer encoder for providing UEP encoding of video data can be configured to provide UEP encoding of video data at an application layer of a transmission channel by receiving video packets having first and second priority levels, applying first and second coding schemes to video packets having first and second priority levels, respectively, and transmitting video frames having first and second priority levels. The cross-layer encoder can be configured to provide UEP encoding of video data at a physical layer of the transmission channel by receiving encoded video frames having first and second priority levels, applying third and fourth coding schemes to video frames having first and second priority levels, respectively, and transmitting cross-layer encoded video frames having first and second priority levels. The first through fourth coding schemes can generate different percentages of the total coding overhead based on first and second priority levels, respectively.
    Type: Application
    Filed: September 19, 2014
    Publication date: March 19, 2015
    Inventors: Fei Hu, Yeqing Wu, Sunil Kumar