Patents by Inventor Yongbing Lin

Yongbing Lin 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).

  • Patent number: 11290717
    Abstract: An encoding method with multiple image block division manners is disclosed, including: determining a division manner and a division direction of an image block; dividing the image block to obtain image subblocks sequentially arranged horizontally or vertically; determining whether the image subblocks need subdivision, and if subdivision is not needed, predicting the encoding object in the frame according to the image subblocks, to obtain residual data; performing transformation, quantization, and entropy encoding for the residual data so as to obtain coded residual data; and writing the division manner of the image block, the division direction of the image block, an identifier indicating whether the image subblocks need subdivision, and the coded residual data into a bitstream. By applying the encoding method, better prediction accuracy can be achieved when the image block presents a small change of pixel value in the horizontal or vertical direction.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: March 29, 2022
    Assignees: Huawei Technologies Co., Ltd., Tsinghua University
    Inventors: Changcai Lai, Xiaoran Cao, Yongbing Lin, Lingzhi Liu, Yun He
  • Publication number: 20210168399
    Abstract: A method for processing an intra prediction mode includes: determining whether an intra prediction mode of each neighboring block in multiple neighboring blocks of a current block is applicable to the current block; and obtaining multiple mapped intra prediction modes of the current block according to a result of the determining, if it is determined that an intra prediction mode of a neighboring block is applicable to the current block, setting the intra prediction mode of the neighboring block as a mapped intra prediction mode of the current block, and if it is determined that the intra prediction mode of the neighboring block is not applicable to the current block, setting a specific intra prediction mode as the mapped intra prediction mode of the current block.
    Type: Application
    Filed: December 14, 2020
    Publication date: June 3, 2021
    Inventors: Yongbing LIN, Xiaozhen ZHENG
  • Publication number: 20210076036
    Abstract: Embodiments of this application relate to the video coding and compression field, and disclose an encoding method and apparatus, and a decoding method and apparatus, to resolve a problem that an existing split mode cannot satisfy a relatively complex texture requirement. The decoding method specifically includes: parsing a bitstream to determine a basic split mode for a current to-be-decoded picture block and a target derivation mode for a subpicture block of the current to-be-decoded picture block; splitting the current to-be-decoded picture block into N subpicture blocks in the basic split mode, where N is an integer greater than or equal to 2; deriving one derived picture block from at least two adjacent subpicture blocks in the N subpicture blocks in the target derivation mode; and decoding the derived picture block.
    Type: Application
    Filed: November 16, 2020
    Publication date: March 11, 2021
    Inventors: Quanhe YU, Jicheng AN, Jianhua ZHENG, Yongbing LIN, Liqiang WANG, Benben NIU, Ziwei WEI, Yun HE
  • Publication number: 20210067777
    Abstract: An encoding method with multiple image block division manners is disclosed, including: determining a division manner and a division direction of an image block; dividing the image block to obtain image subblocks sequentially arranged horizontally or vertically; determining whether the image subblocks need subdivision, and if subdivision is not needed, predicting the encoding object in the frame according to the image subblocks, to obtain residual data; performing transformation, quantization, and entropy encoding for the residual data so as to obtain coded residual data; and writing the division manner of the image block, the division direction of the image block, an identifier indicating whether the image subblocks need subdivision, and the coded residual data into a bitstream. By applying the encoding method, better prediction accuracy can be achieved when the image block presents a small change of pixel value in the horizontal or vertical direction.
    Type: Application
    Filed: November 10, 2020
    Publication date: March 4, 2021
    Inventors: Changcai LAI, Xiaoran CAO, Yongbing LIN, Lingzhi LIU, Yun HE
  • Publication number: 20210014492
    Abstract: The present disclosure provide a transform method in picture block encoding, an inverse transform method in picture block decoding, and an apparatus. The inverse transform method includes: determining, in a target transform set, a corresponding transform pair of each region of at least two regions that constitute a to-be-decoded current block; inverse transforming each region based on the corresponding transform pair of each region to obtain an inverse transform result of each region; and obtaining an inverse transform result of the current block based on the inverse transform result of each region and a position of each region in the current block, where the at least two regions do not overlap each other, the target transform set includes a correspondence between a transform pair and a position of a region in the current block, and the transform pair includes a horizontal transform core and a vertical transform core.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Inventors: Liqiang WANG, Jianhua ZHENG, Quanhe YU, Yongbing LIN, Yun HE
  • Patent number: 10887620
    Abstract: A method for processing an intra prediction mode includes: determining whether an intra prediction mode of each neighboring block in multiple neighboring blocks of a current block is applicable to the current block; and obtaining multiple mapped intra prediction modes of the current block according to a result of the determining, if it is determined that an intra prediction mode of a neighboring block is applicable to the current block, setting the intra prediction mode of the neighboring block as a mapped intra prediction mode of the current block, and if it is determined that the intra prediction mode of the neighboring block is not applicable to the current block, setting a specific intra prediction mode as the mapped intra prediction mode of the current block.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: January 5, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yongbing Lin, Xiaozhen Zheng
  • Patent number: 10869035
    Abstract: An encoding method with multiple image block division manners is disclosed, including: determining a division manner and a division direction of an image block; dividing the image block to obtain image subblocks sequentially arranged horizontally or vertically; determining whether the image subblocks need subdivision, and if subdivision is not needed, predicting the encoding object in the frame according to the image subblocks, to obtain residual data; performing transformation, quantization, and entropy encoding for the residual data so as to obtain coded residual data; and writing the division manner of the image block, the division direction of the image block, an identifier indicating whether the image subblocks need subdivision, and the coded residual data into a bitstream. By applying the encoding method, better prediction accuracy can be achieved when the image block presents a small change of pixel value in the horizontal or vertical direction.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: December 15, 2020
    Assignees: Tsinghua University, Huawei Technologies Co., Ltd.
    Inventors: Changcai Lai, Xiaoran Cao, Yongbing Lin, Lingzhi Liu, Yun He
  • Publication number: 20200296422
    Abstract: An image encoding and decoding method, includes: determining location information of a target reconstructed image block of a current to-be-encoded image block, where the target reconstructed image block is a reconstructed image block used to determine motion information of the current to-be-encoded image block; determining a first transform core pair based on the location information of the target reconstructed image block; and transforming a residual signal of the current to-be-encoded image block based on the first transform core pair, to obtain a transform coefficient.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 17, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Ce ZHU, Shichang SONG, Yongbing LIN, Jianhua ZHENG
  • Publication number: 20200145653
    Abstract: The present disclosure discloses a decoding method based on template matching, including: obtaining a prediction direction identifier and encoded data of a current picture block; when a value of the prediction direction identifier indicates that the encoded data of the current picture block is obtained by performing bidirectional prediction on the current picture block based on a first motion information list and a second motion information list, determining the first motion information list of the current picture block and the second motion information list of the current picture block; determining first motion information based on the first motion information list; determining second motion information based on the second motion information list; and obtaining a reconstructed picture block of the current picture block based on the first motion information, the second motion information, and the encoded data of the current picture block.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 7, 2020
    Inventors: Ce ZHU, Shichang Song, Yongbing Lin, Min Mao, Jianhua Zheng, Xiaoqiang Cao
  • Patent number: 10511854
    Abstract: Relating to the field of video coding, a method and an apparatus for building a motion vector list for motion vector prediction, which solve a problem of building motion vector lists of at least two PUs in a same coding unit in a serial manner, and improve the parallel processing capability. The method includes: obtaining spatial neighboring blocks of a current prediction block, where the current prediction block is located inside a current coding unit; determining available neighboring blocks of the current prediction block according to a partition manner of the current coding unit, where the available neighboring blocks are located outside the current coding unit; and obtaining motion vectors from the available neighboring blocks in a preset sequence according to motion vectors of the available neighboring blocks, and adding the obtained motion vectors to the motion vector list.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: December 17, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Yongbing Lin
  • Publication number: 20190320205
    Abstract: A template matching-based prediction method includes: performing matching search separately in at least two reference images of a to-be-processed unit based on a current template to obtain, at each time of the matching search, one set of motion information, one unidirectional matching template, and one unidirectional template distortion value that are corresponding to the reference image, where the current template includes a plurality of reconstructed pixels with a preset quantity at preset positions in a neighboring domain of the to-be-processed unit, and the unidirectional template distortion value represents a difference between the current template and the unidirectional matching template; determining, as target motion information of the to-be-processed unit, motion information corresponding to a smallest one of the obtained unidirectional template distortion values; and constructing a predicted value of the to-be-processed unit based on the target motion information.
    Type: Application
    Filed: June 25, 2019
    Publication date: October 17, 2019
    Inventor: Yongbing LIN
  • Publication number: 20190313126
    Abstract: A coding method based on template matching includes determining a prediction mode of a to-be-coded unit, performing intra-frame prediction or inter-frame prediction on the to-be-coded unit based on the prediction mode to obtain a prediction residual of the to-be-coded unit, when the prediction mode is a template matching mode, transforming the prediction residual using target transform to obtain transform coefficients, where coefficients in row 1 of a transform basis matrix of the target transform are distributed in ascending order from left to right, or coefficients in column 1 are distributed in ascending order from top to bottom, and performing quantization and entropy coding on the transform coefficients to generate a code stream.
    Type: Application
    Filed: June 21, 2019
    Publication date: October 10, 2019
    Inventor: Yongbing Lin
  • Patent number: 10397612
    Abstract: A three-dimensional (3D) video encoding method, decoding method, and related apparatus is disclosed. The decoding method may include decoding a video bitstream to obtain a single sample flag bit corresponding to a current image block in a current depth map, performing detection on a first adjacent prediction sampling point and a second adjacent prediction sampling point of the current image block in the current depth map if the single sample flag bit obtained by decoding indicates that a decoding mode corresponding to the current image block is a single depth intra-frame mode (SDM), and constructing a sample candidate set according to results of the detection on the first adjacent prediction sampling point and the second adjacent prediction sampling point, where the sample candidate set includes a first index location and a second index location, decoding the video bitstream to obtain a single sample index flag bit corresponding to the current image block.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: August 27, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu Chen, Xiaozhen Zheng, Yongbing Lin
  • Patent number: 10264254
    Abstract: A method for coding an image, a method for decoding an image, a method for processing image data, and devices thereof. The method for coding the image includes determining a current intra coding block that uses a constrained intra prediction method among current inter coded frames; determining that neighboring coding blocks that are adjacent to the current intra coding block include a neighboring inter coding block; updating image data in the neighboring inter coding block based on an invariable value or image data in a neighboring intra coding block included in the neighboring coding blocks; and coding the current intra coding block based on the updated image data in the neighboring inter coding block. Using the methods and devices, the error recovery capability of an intra coding block may be improved, and the image data decoding quality may be improved.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: April 16, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Changcai Lai, Yongbing Lin, Xiaozhen Zheng
  • Publication number: 20190098336
    Abstract: A method for processing an intra prediction mode includes: determining whether an intra prediction mode of each neighboring block in multiple neighboring blocks of a current block is applicable to the current block; and obtaining multiple mapped intra prediction modes of the current block according to a result of the determining, if it is determined that an intra prediction mode of a neighboring block is applicable to the current block, setting the intra prediction mode of the neighboring block as a mapped intra prediction mode of the current block, and if it is determined that the intra prediction mode of the neighboring block is not applicable to the current block, setting a specific intra prediction mode as the mapped intra prediction mode of the current block.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 28, 2019
    Inventors: Yongbing LIN, Xiaozhen ZHENG
  • Publication number: 20180367813
    Abstract: A three-dimensional (3D) video encoding method, decoding method, and related apparatus is disclosed. The decoding method may include decoding a video bitstream to obtain a single sample flag bit corresponding to a current image block in a current depth map, performing detection on a first adjacent prediction sampling point and a second adjacent prediction sampling point of the current image block in the current depth map if the single sample flag bit obtained by decoding indicates that a decoding mode corresponding to the current image block is a single depth intra-frame mode (SDM), and constructing a sample candidate set according to results of the detection on the first adjacent prediction sampling point and the second adjacent prediction sampling point, where the sample candidate set includes a first index location and a second index location, decoding the video bitstream to obtain a single sample index flag bit corresponding to the current image block.
    Type: Application
    Filed: August 27, 2018
    Publication date: December 20, 2018
    Inventors: Xu Chen, Xiaozhen Zheng, Yongbing Lin
  • Patent number: 10154284
    Abstract: A method and an apparatus for processing an intra prediction mode is disclosed. The method includes: determining whether an intra prediction mode of each neighboring block in multiple neighboring blocks of a current block is applicable to the current block; and obtaining multiple mapped intra prediction modes of the current block according to a result of the determining, if it is determined that an intra prediction mode of a neighboring block is applicable to the current block, setting the intra prediction mode of the neighboring block as a mapped intra prediction mode of the current block, and if it is determined that the intra prediction mode of the neighboring block is not applicable to the current block, setting a specific intra prediction mode as the mapped intra prediction mode of the current block.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: December 11, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yongbing Lin, Xiaozhen Zheng
  • Publication number: 20180343467
    Abstract: Relating to the field of video coding, a method and an apparatus for building a motion vector list for motion vector prediction, which solve a problem of building motion vector lists of at least two PUs in a same coding unit in a serial manner, and improve the parallel processing capability. The method includes: obtaining spatial neighboring blocks of a current prediction block, where the current prediction block is located inside a current coding unit; determining available neighboring blocks of the current prediction block according to a partition manner of the current coding unit, where the available neighboring blocks are located outside the current coding unit; and obtaining motion vectors from the available neighboring blocks in a preset sequence according to motion vectors of the available neighboring blocks, and adding the obtained motion vectors to the motion vector list.
    Type: Application
    Filed: August 3, 2018
    Publication date: November 29, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Yongbing Lin
  • Patent number: 10116965
    Abstract: A three-dimensional video encoding method, decoding method, and related apparatus is disclosed. The decoding method may include decoding a video bitstream to obtain a single sample flag bit corresponding to a current image block in a current depth map, performing detection on a first adjacent prediction sampling point and a second adjacent prediction sampling point of the current image block in the current depth map if the single sample flag bit obtained by decoding indicates that a decoding mode corresponding to the current image block is a single depth intra-frame mode, and constructing a sample candidate set according to results of the detection on the first adjacent prediction sampling point and the second adjacent prediction sampling point, where the sample candidate set includes a first index location and a second index location, decoding the video bitstream to obtain a single sample index flag bit corresponding to the current image block.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: October 30, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xu Chen, Xiaozhen Zheng, Yongbing Lin
  • Patent number: 10091523
    Abstract: Relating to the field of video coding, a method and an apparatus for building a motion vector list for motion vector prediction, which solve a problem of building motion vector lists of at least two PUs in a same coding unit in a serial manner, and improve the parallel processing capability. The method includes: obtaining spatial neighboring blocks of a current prediction block, where the current prediction block is located inside a current coding unit; determining available neighboring blocks of the current prediction block according to a partition manner of the current coding unit, where the available neighboring blocks are located outside the current coding unit; and obtaining motion vector predictors from the available neighboring blocks in a preset sequence according to motion vector predictors of the available neighboring blocks, and adding the obtained motion vector predictors to the motion vector list.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: October 2, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Yongbing Lin