Patents by Inventor Shan Liu

Shan 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: 20220199087
    Abstract: The present disclosure provides methods, devices, apparatus, and storage medium for performing speech-to-text conversion. The method includes: displaying, by a first device, a first user interface, the first user interface being a display screen of a virtual environment that provides a virtual activity place for a first virtual role controlled by a first user account; displaying, by a second device, a second user interface, the second user interface being a display screen of a virtual environment that provides a virtual activity place for a second virtual role controlled by a second user account; in response to a speech input operation by the first user account performed on the first device, displaying, by the first device, a chat message in a first language, and displaying, by the second device, the chat message in a second language.
    Type: Application
    Filed: October 13, 2021
    Publication date: June 23, 2022
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Peicheng LIU, Xiaohao LIU, Yancan WANG, Dong DING, Kai TANG, Shan LIN
  • Publication number: 20220201304
    Abstract: A method includes determining whether at least one of a height or width of a residual coding block, that corresponds to a data block of an image, is greater than or equal to a threshold; and based on determining that the at least one of the height or width of the residual coding block is greater than or equal to the threshold: obtaining a reduced-complexity residual coding block based on the residual coding block and performing transform coding of the reduced-complexity residual coding block using a line graph transform (LGT) core to perform direct matrix multiplications for each of the horizontal and vertical dimensions of the reduced-complexity residual coding block, wherein the performing includes determining an order of performing horizontal and vertical transforms to the reduced-complexity residual coding block when zero-out is enabled on LGT, depending on a ratio of width to height of the residual coding block.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 23, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Madhu Peringassery KRISHNAN, Xin ZHAO, Shan LIU
  • Publication number: 20220201321
    Abstract: Aspects of the disclosure include methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes prediction information of a current block in a current picture that is a part of a video bitstream. The processing circuitry determines that a first plurality of coding tools is enabled and a second plurality of coding tools is disabled for the current block based on a syntax element included in the video bitstream. The first plurality of coding tools includes a deblocking filter. The second plurality of coding tools includes at least one of a sample adaptive offset filter, an intra sub-partitioning, and a matrix based intra prediction. The processing circuitry reconstructs the current block based on the first plurality of coding tools being enabled and the second plurality of coding tools being disabled.
    Type: Application
    Filed: September 3, 2021
    Publication date: June 23, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Wen GAO, Xiaozhong Xu, Shan Liu
  • Publication number: 20220201334
    Abstract: Aspects of the disclosure provide a method and an apparatus including processing circuitry for video decoding. The processing circuitry determines a transform candidate for a block in a current picture from a group of transform sets based on one of a feature vector {right arrow over (F)} or a feature scalar S extracted from reconstructed samples in one or more neighboring blocks of the block. Each transform set of the group of transform sets can include one or more transform candidates for the block. The one or more neighboring blocks can be in the current picture or a reconstructed picture different from the current picture. The processing circuitry reconstructs samples of the block based on the determined transform candidate.
    Type: Application
    Filed: September 30, 2021
    Publication date: June 23, 2022
    Applicant: Tencent America LLC
    Inventors: Madhu Peringassery KRISHNAN, Samruddhi KAHU, Xin ZHAO, Shan LIU
  • Publication number: 20220201331
    Abstract: A method and apparatus for coding information of a point cloud that includes obtaining the point cloud including a set of points in a three-dimensional space; determining whether a current node in the set of points is isolated; and coding the current node in isolation mode based on a determination that the current node is isolated and coding the current node in non-isolation mode, based on a determination that the current node is not isolated.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 23, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Xiang ZHANG, Wen Gao, Shan Liu
  • Publication number: 20220201307
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding and decoding. Processing circuitry of an apparatus for video decoding decodes coded information for one or more blocks from a coded video bitstream. The coded information indicates whether to apply a super resolution coding mode to the one or more blocks. The super resolution coding mode is applied in response to the one or more blocks having been down sampled from a high spatial resolution to a low spatial resolution lower than the high spatial resolution by an encoder. Based on the coded information indicating that the super resolution coding mode is applied to the one or more blocks, the processing circuitry can generate, using the super resolution coding mode, a reconstructed block having the high spatial resolution by upsampling information of a first block having the low spatial resolution in the one or more blocks including transform coefficients.
    Type: Application
    Filed: September 22, 2021
    Publication date: June 23, 2022
    Applicant: Tencent America LLC
    Inventors: Sehoon YEA, Madhu Peringassery KRISHNAN, Xin ZHAO, Shan LIU
  • Patent number: 11368723
    Abstract: A method of video decoding performed in a video decoder is disclosed. A syntax element can be received from a bitstream of a coded video that indicates whether a sequence of pictures are monochrome or include three color components that are coded separately. By inferring a value of a syntax element, a coding tool can be disabled when the syntax element indicates that the sequence of pictures are monochrome or include three color components that are coded separately. The coding tool uses multiple color components of a picture as input or depends on a chroma component of a picture. Examples of the disabled coding tools can include joint coding of chroma residuals, active color transform (ACT), or block-based delta pulse code modulation (BDPCM) for chroma component.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: June 21, 2022
    Assignee: Tencent America LLC
    Inventors: Cheung Auyeung, Xiang Li, Shan Liu
  • Patent number: 11368721
    Abstract: A method of video decoding performed in a video decoder includes determining whether a first block associated with a second block is coded with a block differential pulse code modulation (BDPCM) mode. The method further includes, in response to determining that the first block is coded with the BDPCM mode, associating the first block with an intra prediction mode value based on a BDPCM directional flag. The method further includes determining an inter prediction mode value for the second block using the intra prediction mode value associated with the first block. The method further includes reconstructing the second block using the determined intra prediction mode value.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: June 21, 2022
    Assignee: Tencent America LLC
    Inventors: Xin Zhao, Xiang Li, Liang Zhao, Shan Liu
  • Patent number: 11368708
    Abstract: A method, device, and computer-readable medium for a method of encoding a video bitstream using at least one processor, including determining that reference picture resampling is enabled; determining a reference picture size of a reference picture; determining a current picture size of a current picture; determining whether the reference picture size equals the current picture size; based on determining that the reference picture size does not equal the current picture size, disabling wrap-around motion compensation; based on the wrap-around motion compensation being disabled, encoding the current picture without using the wrap-around motion compensation; and generating an encoded video bitstream based on the encoded current picture.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: June 21, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Byeongdoo Choi, Shan Liu, Stephan Wenger
  • Patent number: 11368717
    Abstract: Aspects of the disclosure provide methods, apparatuses, and a non-transitory computer-readable medium for point cloud compression and decompression. In a method, syntax information of a bounding box of a point cloud is decoded from a coded bitstream. The syntax information indicates an octree partitioning structure for the bounding box of the point cloud. Whether the syntax information indicates that parallel decoding is to be performed on occupancy codes of nodes in a range of one or more partitioning depths in the octree partitioning structure is determined. The parallel decoding is performed on the occupancy codes of the nodes in response to the syntax information indicating that the parallel decoding is to be performed on the occupancy codes of the nodes in the range of the one or more partitioning depths in the octree partitioning structure. The bounding box is reconstructed based on the occupancy codes of the nodes.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: June 21, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Zhang, Wen Gao, Shan Liu
  • Patent number: 11368511
    Abstract: According to an embodiment, a method of selecting a Rice parameter for encoding a video bitstream using at least one processor includes obtaining an absolute level corresponding to a current transform block; determining whether transform skip is enabled; generating a lookup variable based on the absolute level and the determination of whether the transform skip is enabled; obtaining the Rice parameter from a lookup table based on the lookup variable; and encoding a residual subblock based on the Rice parameter.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: June 21, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Cheung Auyeung, Xiang Li, Shan Liu
  • Patent number: 11368698
    Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. Prediction information for a current block in a current picture that is a part of a coded video sequence is decoded. The prediction information indicates an intra sub-partition (ISP) mode for the current block. The ISP mode indicates that the current block is to be partitioned in one of a vertical mode and a horizontal mode. The current block is partitioned into a plurality of sub-partitions based on the ISP mode. Each sub-partition is associated with at least one different reference sample that is in one of (1) a row above the current block and (2) a column left to the current block. Each sub-partition is reconstructed based on the at least one different reference sample associated with the respective sub-partition. The current block is reconstructed based on the reconstructed plurality of sub-partitions.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: June 21, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Xiang Li, Shan Liu
  • Publication number: 20220188648
    Abstract: The present invention relates to a method for predicting and optimizing a penetration rate in oil and gas drilling based on a CART algorithm.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 16, 2022
    Inventors: Xiangchao Shi, Ergang Zhang, Quan Cao, Shan Jiang, Yuehao Liu, Yuming Wang
  • Publication number: 20220185910
    Abstract: The present application provides constructs comprising an antibody moiety that specifically binds to PSMA (e.g., PSMA expressed on the surface of a cell). Also provided are methods of making and using these constructs.
    Type: Application
    Filed: June 17, 2019
    Publication date: June 16, 2022
    Inventors: Hong LIU, Hongruo YUN, Xiaomei GE, Zhiyuan YANG, Lianxing LIU, Pengbo ZHANG, Yixiang XU, Shan LI, Lucas HORAN
  • Publication number: 20220191495
    Abstract: According to an aspect of the disclosure, a method of video decoding performed in a video decoder is provided. In the method, syntax information of a coding unit (CU) is decoded from a coded video bitstream. The syntax information is signaled in a picture header (PH) and includes chroma quantization parameter (QP) offsets in a PH level. The chroma QP offsets include at least one of a Cb offset, a Cr offset, and a CbCr offset. Further, quantization parameters for the CU are determined based on the chroma QP offsets in the PH level and a quantization parameter range offset of the CU.
    Type: Application
    Filed: March 1, 2022
    Publication date: June 16, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Ling LI, Xiang LI, Shan LIU
  • Publication number: 20220191482
    Abstract: Aspects of the disclosure provide methods and apparatuses for video processing. In some examples, an apparatus for video processing includes processing circuitry. The processing circuitry determines gating weights associated with expert modules based at least partially on a quantization parameter (QP) value. The expert modules are configured to process an input block that includes an image block being reconstructed based on the QP value. The processing circuitry then weights the expert modules based on the gating weights to generate an output image block corresponding to the image block.
    Type: Application
    Filed: September 15, 2021
    Publication date: June 16, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Cheung AUYEUNG, Zhongzheng YUAN, Xiang LI, Shan LIU
  • Publication number: 20220189009
    Abstract: A medical image analysis method includes: reading an original medical image; performing image classification and object detection on the original medical image to generate a first classification result and a plurality of object detection results by a plurality of complementary artificial intelligence (AI) models; performing object feature integration and transformation on a first detection result and a second detection result among the object detection results to generate a transformation result by a features integration and transformation module; and performing machine learning on the first classification result and the transformation result to generate an image interpretation result by a machine learning module and display the image interpretation result.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 16, 2022
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Ting-Yuan WANG, Ming-Shan DENG, Ya-Wen LEE, Jung-Tzu LIU
  • Publication number: 20220186480
    Abstract: Disclosed are a heating device, a sanitary water supply device, and a sanitary cleaning device. The heating device comprises a main body and one or more ceramic heating plates. The main body comprises a heating cavity, and the one or more ceramic heating plates are disposed in the heating cavity to define a heating channel within the heating cavity. A first water inlet is defined at a first end of the heating channel, and a first water outlet is defined at a second end of the heating channel. The one or more ceramic heating plates comprise a first heating surface and a second heating surface facing away from each other, and a flow direction of cleaning water in the heating channel is along the first heating surface and the second heating surface in sequence.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Inventors: Xiaofa Lin, Xiaoshan Lin, Shan Lin, Zuhua Liu, Yanxin Xu
  • Publication number: 20220186482
    Abstract: The present disclosure discloses an anti-siphonage water storage device, a sanitary water supply device, and a sanitary cleaning device. The anti-siphonage water storage device is set in a cleaning water path of a sanitary cleaning device, and the anti-siphonage water storage device comprises a water tank for storing cleaning water. The water tank is disposed with a water inlet structure and a water outlet structure, and the water tank is disposed with an overflow structure. A water outlet surface of the water inlet structure is higher than an overflow surface of the overflow structure.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 16, 2022
    Inventors: Xiaofa LIN, Xiaoshan Lin, Shan Lin, Zuhua Liu, Genyuan Lin
  • Publication number: 20220191528
    Abstract: Aspects of the disclosure include methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes prediction information of a coding unit in a video bitstream. The processing circuitry determines whether a luma block and a chroma block associated with the coding unit have different partitioning trees based on the prediction information. When the luma block and the chroma block have different partitioning trees, the processing circuitry determines whether the luma block is coded in intra block copy (IBC) mode based on a first IBC flag included in the prediction information. The processing circuitry determines whether the chroma block is coded in the IBC mode based on one of the first IBC flag, a second IBC flag included in the prediction information, and a default mode. The processing circuitry reconstructs the current coding unit based on the luma block and the chroma block.
    Type: Application
    Filed: September 1, 2021
    Publication date: June 16, 2022
    Applicant: TENCENT AMERICA LLC
    Inventors: Liang ZHAO, Xin ZHAO, Shan LIU