Patents by Inventor Yin Zhao

Yin Zhao 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: 20210368174
    Abstract: A video coding mechanism is disclosed. The mechanism includes obtaining a coding tree unit including luma samples and chroma samples. The mechanism partitions the luma samples and the chroma samples according to a common coding tree when a size of a first coding tree node exceeds a threshold. The mechanism also partitions the luma samples with a luma coding sub-tree when a size of a second coding tree node is equal to or less than the threshold. The mechanism also chroma samples with a chroma coding sub-tree when a size of a third coding tree node is equal to or less than the threshold. The luma coding sub-tree contains a different set of split modes than the chroma coding sub-tree.
    Type: Application
    Filed: August 4, 2021
    Publication date: November 25, 2021
    Inventors: Yin Zhao, Haitao Yang, Jianle Chen, Jiali Fu
  • Patent number: 11179650
    Abstract: A handle structure of a remote controller includes a left body including a left docking portion, a right body including a right docking portion configured to be docked with the left docking portion, and a connecting mechanism connecting the left docking portion and the right docking portion and configured to allow the left docking portion or the right docking portion to slide relatively to adjust an interval between an end of the left body and an end of the right body that are distal from each other. At least one controlling member is disposed at one of the left body or the right body.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: November 23, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Yin Tang, Tao Zhao, Lei Deng
  • Publication number: 20210352304
    Abstract: A method of coding implemented by a decoding device or encoding device, the method comprising obtaining a bitstream, the bitstream comprises a transform unit syntax; the syntax comprises at least two cbf flags for chroma blocks (in an example, transform unit syntax correspond to either transform unit or sub-transform units which include two chroma cbf flags: tu_cbf_cb and tu_cbf_cb—one flag for each chroma plane), a chroma cbf flag specifies whether certain block has residue in correspondent color plane; deriving a value of a luma cbf flag tu_cbf_luma based on one or any combination of a value of a cu_cbf flag, values of two chroma cbf flags corresponding to a current transform unit or sub-transform unit, location of the sub-transform unit within transform unit, values of luma and chroma cbf flags correspondent to previous sub-transform units in the current transform unit.
    Type: Application
    Filed: July 6, 2021
    Publication date: November 11, 2021
    Inventors: Roman Igorevich CHERNYAK, Yin ZHAO, Sergey Yurievich IKONIN, Jianle CHEN
  • Publication number: 20210344899
    Abstract: This application discloses a processing method applied to video encoding or video decoding. The method includes: obtaining size information of a current block; determining a context model index ctxInc of a flag of the current block based on the obtained size information of the current block and a size-based constraint; and performing subsequent processing based on the context model index ctxInc of the flag of the current block. The method can be used to improve coding efficiency.
    Type: Application
    Filed: July 13, 2021
    Publication date: November 4, 2021
    Inventors: Huanbang CHEN, Yin ZHAO, Haitao YANG, Lian ZHANG
  • Publication number: 20210344917
    Abstract: A method of decoding a coded video bitstream implemented by a video decoder. The method includes determining a split mode for a coding tree unit (CTU) in an encoded bitstream, where the split mode is one of triple tree (TT), vertical binary tree (BT), and horizontal BT; marking a coding unit (CU) from the CTU as not to be predicted by intra prediction when one of three conditions is met; parsing the encoded bitstream to obtain a prediction unit and residual information for the CU from the CTU; and reconstructing the CU based on the prediction unit and the residual information when the CU has been marked.
    Type: Application
    Filed: May 12, 2021
    Publication date: November 4, 2021
    Inventors: Jianle Chen, Yin Zhao, Semih Esenlik
  • Publication number: 20210344910
    Abstract: An image prediction method, apparatus, and system, a device, and a storage medium are provided. The method includes: (401) obtaining a split mode of a current node, where the current node is an image block in a coding tree unit in a current image; (402) determining, based on the split mode of the current node and a size of the current node, whether the current node satisfies a first condition; and (403) when it is determined that the current node satisfies the first condition, performing intra prediction on all coding blocks belonging to the current node, to obtain predictors of all the coding blocks belonging to the current node.
    Type: Application
    Filed: July 7, 2021
    Publication date: November 4, 2021
    Inventors: Yin ZHAO, Haitao YANG, Jianle CHEN, Lian ZHANG
  • Publication number: 20210344903
    Abstract: A video encoding method, a video decoding method, an apparatus, a device, and a storage medium include parsing a first flag from the video bitstream when a video bitstream is allowed to be decoded by referencing a library picture corresponding to a library picture bitstream, using a value of a target parameter of the video bitstream as a value of a target parameter of the library picture bitstream referenced by the video bitstream when a value of the first flag is a first value, and reconstructing, based on the value of the target parameter of the library picture bitstream referenced by the video bitstream and the library picture bitstream referenced by the video bitstream to obtain the library picture corresponding to the library picture bitstream referenced by the video bitstream.
    Type: Application
    Filed: July 8, 2021
    Publication date: November 4, 2021
    Inventors: Lu Yu, Ye-Kui Wang, Hualong Yu, Yin Zhao, Yuqun Fan, Xiaoding Gao, Haitao Yang
  • Publication number: 20210337220
    Abstract: A decoding method includes obtaining an identifier from a bitstream, where the identifier indicates a minimum decoding time interval k between library pictures that is allowed in the bitstream, obtaining, when parsing the bitstream, a decoding moment ti of a current decoded picture and a decoding moment tj of a first decoded picture that is closest to the current decoded picture and that references a new library picture when the current decoded picture is decoded by referencing a library picture, where the new library picture is a library picture that is not decoded or needs to be re-decoded when the first decoded picture is decoded, and determining a preset quantity of library pictures as candidate reference pictures of the current decoded picture based on a relationship between k and a difference between ti and tj.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Lu Yu, Ye-Kui Wang, Yuqun Fan, Hualong Yu, Yin Zhao, Xiangyu Lin, Haitao Yang
  • Publication number: 20210337189
    Abstract: A prediction mode determining method and apparatus are described. A prediction mode status of a child node of a target node is determined based on an area and a split manner of the target node, where the prediction mode status includes intra prediction mode only and inter prediction mode only. Further, a prediction mode of the child node is determined based on the prediction mode status of the child node. In this way, a same prediction mode is used for all child nodes obtained by splitting the target node. This facilitates pipeline processing of hardware, increases a subsequent processing speed, and improves video coding efficiency.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 28, 2021
    Inventors: Yin ZHAO, Haitao YANG, Lian ZHANG
  • Publication number: 20210329225
    Abstract: A context modeling method includes: determining, for a current block, whether a first preset condition is satisfied and whether a second preset condition is satisfied, where the first preset condition is a preset condition related to a first neighboring block neighboring to the current block in a first direction, the second preset condition is a preset condition related to a second neighboring block neighboring to the current block in a second direction; determining a subclass index of a context model of a first flag of the current block based on the height and the width of the current block; and determining the context model of the first flag of the current block based on a satisfaction status of the first preset condition, a satisfaction status of the second preset condition, and the subclass index of the context model of the first flag.
    Type: Application
    Filed: June 23, 2021
    Publication date: October 21, 2021
    Inventors: Yin Zhao, Lian Zhang, Haitao Yang, Jianle Chen
  • Publication number: 20210329261
    Abstract: This application provides a chroma block prediction method and apparatus. The method includes: obtaining chroma values of chroma samples; obtaining, luma values of luma samples corresponding to the chroma samples; obtaining, from the luma values, a first luma set and a second luma set; grouping the chroma values into a first chroma set and a second chroma set; determining a scaling coefficient in a linear model based on an average value of luma values in the first luma set, an average value of luma values in the second luma set, an average value of chroma values in the first chroma set, and an average value of chroma values in the second chroma set; determining, based on the scaling coefficient, an offset factor in the linear model; and determining prediction information of the chroma block based on the scaling coefficient and the offset factor.
    Type: Application
    Filed: July 1, 2021
    Publication date: October 21, 2021
    Inventors: Xiang Ma, Fan Mu, Yin Zhao, Haitao Yang
  • Publication number: 20210321101
    Abstract: This application discloses a prediction mode determining method and apparatus, an encoding device, and a decoding device. The method includes: determining a split mode for a current picture block; determining whether a first picture subblock that meets a preset condition is obtained after the current picture block is split in the split mode; if it is determined that the first picture subblock is obtained after the split, splitting the current picture block in the split mode to obtain a plurality of picture subblocks, where the plurality of picture subblocks include the first picture subblock; and determining that a same prediction mode is used for the plurality of picture subblocks, where the prediction mode for the plurality of picture subblocks is an intra prediction mode or an inter prediction mode. During implementation of this application, there is no need to parse all bitstreams, thereby facilitating hardware pipeline processing and improving efficiency.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Inventors: Haitao YANG, Yin ZHAO, Lian ZHANG
  • Publication number: 20210321127
    Abstract: This application discloses a video decoding method and apparatus, and a decoding device. The method includes: obtaining block information of a current picture block; determining, based on the block information, whether a split mode in a set of optional split modes is available determining a split mode of the current picture block from a determined available split mode; obtaining one CU or a plurality of CUs from the current picture block based on the split mode of the current picture block, and parsing a bitstream including the current picture block, to obtain decoding information of the one CU or the plurality of CUs, and decoding the CU based on the decoding information, to obtain a reconstructed block.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Inventors: Yin ZHAO, Haitao YANG, Lian ZHANG
  • Patent number: 11141652
    Abstract: A dial assembly comprises a dial base, a rolling wheel, a dial handle, a reset elastic member, and a sensor. The dial base includes a first rotation channel and a second rotation channel. The rolling wheel is seated on the first rotation channel and rotatable along the first rotation channel. The dial handle is rotatably connected with the dial base and rotatable along the second rotation channel. The dial handle is connected with the rolling wheel and configured to rotate along with the rolling wheel. The reset elastic member is connected with the dial handle and configured to provide a restoring force to the dial handle. The sensor is connected with the dial handle and configured to obtain a rotation angle of the rolling wheel by sensing a rotation of the dial handle and convert the rotation angle into a control signal to transmit.
    Type: Grant
    Filed: December 29, 2019
    Date of Patent: October 12, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Yin Tang, Tao Zhao, Guozhu Gui
  • Publication number: 20210306630
    Abstract: This application relates to the field of video coding technologies, and discloses a video coder and a corresponding method, to help improve video coding performance. In this application, encoding and decoding are collectively referred to as coding. A video coding method includes: determining a block split policy of a current picture block based on a size relationship between the width and the height of the current picture block; applying the block split policy to the current picture block to obtain a coding block; and reconstructing the obtained coding block to reconstruct the current picture block.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haitao YANG, Yin ZHAO, Riyang ZHAO, Zhongliang LI, Jing XIAO
  • Publication number: 20210306643
    Abstract: Embodiments include a picture reconstruction method and apparatus for a video picture. The picture reconstruction method includes: obtaining a prediction mode of a current coding unit, and/or obtaining a prediction partition mode of the current coding unit, where the current coding unit includes a luma coding block and a chroma coding block, and the prediction partition mode is a mode of splitting the current coding unit into prediction blocks or prediction units; obtaining a transform block of the current coding unit based on the prediction partition mode and/or the prediction mode; and generating a reconstructed picture block of the current coding unit based on the transform block. According to the method in the embodiments, video coding efficiency can be improved.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yin ZHAO, Haitao YANG, Riyang ZHAO, Zhongliang LI, Lian ZHANG
  • Patent number: 11134269
    Abstract: This disclosure provides an image encoding method and apparatus and an image decoding method and apparatus. For a to-be-encoded image in a to-be-encoded video sequence, a reference image may be selected from at least one knowledge-base image in a knowledge-base image set. In addition, bitstream data of the to-be-encoded image includes identification information used to identify the reference image of the to-be-encoded image.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: September 28, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yin Zhao, Peiyun Di, Lu Yu
  • Publication number: 20210297656
    Abstract: An intra prediction method by using cross component liner prediction mode (CCLM), includes: determining a luma block corresponding to a current chroma block; obtaining luma reference samples of the luma block based on determining L available chroma reference samples of the current chroma block, wherein the obtained luma reference samples of the luma block are down-sampled luma reference samples; calculating linear model coefficients based on the luma reference samples and chroma reference samples that correspond to the luma reference samples; and obtaining a prediction for the current chroma block based on the linear model coefficients and values of a down-sampled luma block of the luma block.
    Type: Application
    Filed: April 5, 2021
    Publication date: September 23, 2021
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiang Ma, Jianle Chen, Yin Zhao, Haitao Yang
  • Publication number: 20210297688
    Abstract: This application provides a weighted prediction method for multi-hypothesis encoding and an apparatus. The method includes: determining a first target prediction block of a to-be-processed picture block based on an inter prediction mode; determining a second target prediction block of the to-be-processed picture block based on an intra prediction mode; determining, based on indication information in a bitstream, weight coefficients respectively corresponding to the inter prediction mode and the intra prediction mode; and weighting a pixel value of the first target prediction block and a pixel value of the second target prediction block based on the weight coefficients, to obtain a prediction value of the to-be-processed picture block. Implementation of this application improves prediction accuracy of a pixel value of a picture block and encoding/decoding performance to some extent.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Weiwei XU, Haitao YANG, Yin ZHAO
  • Publication number: 20210289203
    Abstract: A video decoding method includes parsing a bitstream to obtain a split mode to transform units (TUs) in a current coding unit (CU). Each of the TUs has a serial number in a one-to-one correspondence with positions of the TUs in the current CU. A transform coefficient of a luminance transform block of a current TU in the TUs is obtained. A transform type of the luminance transform block of the current TU is obtained based on the split mode and a serial number of the current TU. An inverse transform on the transform coefficient of the luminance transform block of the current TU is performed based on the transform type of the luminance transform block of the current TU to obtain a reconstructed residual of the luminance transform block of the current TU. A reconstructed block of the current CU is obtained based on the reconstructed residual.
    Type: Application
    Filed: June 2, 2021
    Publication date: September 16, 2021
    Inventors: Yin ZHAO, Haitao YANG, Jianle CHEN