Patents Examined by Luis Perez Fuentes
  • Patent number: 11985315
    Abstract: A method by which a decoding device decodes an image, according to the present document, comprises the steps of: receiving prediction mode information about a current block; receiving intra sub-partitions (ISP)-related information about the current block on the basis of the size and the maximum conversion block size of the current block; deriving an intra prediction mode of the current block on the basis of the prediction mode information; and generating a prediction sample of the current block on the basis of the intra prediction mode and the ISP-related information.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: May 14, 2024
    Assignee: LG Electronics Inc.
    Inventor: Hyeongmoon Jang
  • Patent number: 11979597
    Abstract: A picture coding device includes a coding information storage unit configured to initialize to fill a history-based motion vector predictor candidate list with history-based candidates having at least predetermined motion vector and reference index, a motion vector predictor candidate derivation unit configured to derive a history-based candidate included in the history-based motion vector predictor candidate list as a motion vector predictor, a motion vector subtraction unit configured to calculate a motion vector difference by subtracting the derived motion vector predictor from a motion vector by which inter prediction is performed, wherein the coding information storage unit adds the motion vector to the history-based motion vector predictor candidate list as a history-based candidate and updates the history-based motion vector predictor candidate list.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: May 7, 2024
    Assignee: JVCKENWOOD CORPORATION
    Inventors: Hideki Takehara, Hiroya Nakamura, Satoru Sakazume, Shigeru Fukushima, Toru Kumakura, Hiroyuki Kurashige
  • Patent number: 11968380
    Abstract: An apparatus for encoding and decoding video receives a request to decode a current video frame. The apparatus determines whether encoding is within a threshold for a previous video frame. Additionally, the apparatus waits for the encoding to start if the encoding is within the threshold. Further, the apparatus provides a signal to begin encoding the current video frame. Also, the apparatus submits a decode workload to a graphics processor unit (GPU) for the current video frame. The apparatus additionally submits, in parallel with submitting the decode workload to the GPU, an encode workload to the GPU for the previous video frame.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: April 23, 2024
    Assignee: INTEL CORPORATION
    Inventors: Jiaping Wu, Kin-Hang Cheung, Bo Zhao
  • Patent number: 11962953
    Abstract: Systems and methods are provided for transmitting functional safety statistics within a system. A video source produces a video data stream. A functional safety system driver accumulates functional safety statistics from at least one system and writes the functional safety statistics onto an associated system memory. A display sub-system driver writes a frame of the video data stream to the system memory. The display sub-system driver formats the functional safety statistics as video data and appends the functional safety statistics to a portion of the frame of video that is reserved for the functional safety statistics. A display sub-system transmits the frame of the video data stream to a host processor, which extracts the functional safety statistics from the video frame.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: April 16, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Brijesh Rameshbhai Jadav, Shiju Ozhuvinamolathu Sivasankaran, Anish Reghunath
  • Patent number: 11956465
    Abstract: Difference calculation based on partial position is described. In a representative aspect, a method of video processing comprising: calculating, during a conversion between a current block of video and a bitstream representation of the current block, differences between two reference blocks associated with the current block or differences between two reference sub-blocks associated with a sub-block within the current block based on representative positions of the reference blocks or representative positions of the reference sub-blocks; and performing the conversion based on the differences.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: April 9, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Jizheng Xu, Yue Wang
  • Patent number: 11956476
    Abstract: A method of video processing includes performing a conversion between a video and a bitstream of the video according to a rule, wherein the rule specifies that a first syntax element, which indicates a number of parameters for an output layer set (OLS) hypothetical reference decoder (HRD) in a video parameter set (VPS) associated with the video, is less than a first predetermined threshold.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: April 9, 2024
    Assignee: BYTEDANCE INC.
    Inventors: Ye-kui Wang, Li Zhang, Kai Zhang
  • Patent number: 11943437
    Abstract: A method of decoding a bitstream by an electronic device is provided. A block unit is determined from an image frame received from the bitstream. An intra prediction mode index corresponding to one of wide-angle candidate modes is determined for the block unit. The electronic device determines whether the intra prediction mode index is different from predefined indices each corresponding to one of predefined wide-angle modes in the wide-angle candidate modes. Filtered samples are generated based on reference samples neighboring the block unit. The filtered samples are generated by an interpolation filter when the intra prediction mode index is different from the predefined indices. The filtered samples are generated by a reference filter when the intra prediction mode index is equal to at least one of the predefined indices. The block unit is reconstructed based on the filtered samples along a mode direction of the intra prediction mode index.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: March 26, 2024
    Assignee: FG Innovation Company Limited
    Inventors: Yu-Chiao Yang, Po-Han Lin
  • Patent number: 11937897
    Abstract: Devices and methods for visibly highlighting areas of a region including an imager configured to image the region with a sensitivity to at least one of wavelength, light level, or contrast greater than the human eye, an overlay element configured to visibly highlight areas of the region and registered to the imager to produce alignment of imaged features with highlighted features at the same location on the region, and at least one of a controller executing a program or logic configured to process acquired images from the imager to identify areas of the region determined not visible to the human eye, and control the overlay element to visibly highlight those areas on the region.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: March 26, 2024
    Assignees: AI Biomed Corp, Vanderbilt University
    Inventors: Adnan Abbas, Melanie McWade, Anita Mahadevan-Jansen
  • Patent number: 11936878
    Abstract: An image decoding method includes: deriving a refined L0 motion vector and a refined L1 motion vector by applying decoder-side motion vector refinement (DMVR) based on an L0 motion vector and an L1 motion vector of a current block, deriving prediction samples for the current block based on L0 prediction samples derived based on the refined L0 motion vector and L1 prediction samples derived based on the refined L1 motion vector, and generating reconstructed samples for the current block based on the prediction samples. The L0 prediction samples are derived based on an L0 reference picture and the refined L0 motion vector, and the L1 prediction samples are derived based on an L1 reference picture and the refined L1 motion vector, and deriving the prediction samples comprises determining whether to apply bi-directional optical flow (BDOF) process based on a first POC difference and a second POC difference are the same.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: March 19, 2024
    Assignee: LG Electronics Inc.
    Inventors: Naeri Park, Junghak Nam, Hyeongmoon Jang
  • Patent number: 11936908
    Abstract: An intra-frame prediction method and device, according to the present invention, enables deriving an intra-frame prediction mode of a current block, determining a pixel line, among a plurality of pixel lines, for the intra-frame prediction of the current block, and carrying out the intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the pixel line. In addition, a first reference pixel of the determined pixel line may be selectively filtered, and a prediction pixel of the current block may be selectively corrected, and thus the accuracy of the intra-frame prediction may be improved.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: March 19, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Ki Baek Kim
  • Patent number: 11936906
    Abstract: An intra-frame prediction method and device, according to the present invention, enables deriving an intra-frame prediction mode of a current block, determining a pixel line, among a plurality of pixel lines, for the intra-frame prediction of the current block, and carrying out the intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the pixel line. In addition, a first reference pixel of the determined pixel line may be selectively filtered, and a prediction pixel of the current block may be selectively corrected, and thus the accuracy of the intra-frame prediction may be improved.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: March 19, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Ki Baek Kim
  • Patent number: 11936907
    Abstract: An intra-frame prediction method and device, according to the present invention, enables deriving an intra-frame prediction mode of a current block, determining a pixel line, among a plurality of pixel lines, for the intra-frame prediction of the current block, and carrying out the intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the pixel line. In addition, a first reference pixel of the determined pixel line may be selectively filtered, and a prediction pixel of the current block may be selectively corrected, and thus the accuracy of the intra-frame prediction may be improved.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: March 19, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Ki Baek Kim
  • Patent number: 11930210
    Abstract: An intra-frame prediction method and device, according to the present invention, enables deriving an intra-frame prediction mode of a current block, determining a pixel line, among a plurality of pixel lines, for the intra-frame prediction of the current block, and carrying out the intra-frame prediction of the current block on the basis of the intra-frame prediction mode and the pixel line. In addition, a first reference pixel of the determined pixel line may be selectively filtered, and a prediction pixel of the current block may be selectively corrected, and thus the accuracy of the intra-frame prediction may be improved.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: March 12, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Ki Baek Kim
  • Patent number: 11924424
    Abstract: The present invention relates to a method and device for transmitting block division information for efficient image coding in a video compression technique for a high-definition security camera. To this end, the present invention obtains block division information from a bitstream, determines the division form of an image by computing and predicting omitted information if there is omitted information in the obtained information, and performs video decoding in the unit of a divided block.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: March 5, 2024
    Assignee: GOLDENWAVEPARTNERS CO., LTD.
    Inventors: Donggyu Sim, Yongjo Ahn, Seanae Park
  • Patent number: 11917198
    Abstract: A method and device for intra prediction are provided. The method includes: when determining that a current level obtained by partitioning an input point cloud is lower than a target level, obtaining occupation information of a first number of neighbouring nodes of a current node; extracting occupation information of a second number of neighbouring nodes from the occupation information of the first number of neighbouring nodes, the first number being greater than the second number, and the second number of neighbouring nodes being in an association relationship with a child node of the current node, and performing intra prediction on occupation information of the child node of the current node based on the occupation information of the second number of neighbouring nodes to obtain a first prediction result.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 27, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Shuai Wan, Zhecheng Wang, Fuzheng Yang, Yanzhuo Ma, Junyan Huo
  • Patent number: 11917131
    Abstract: According to the disclosure of the present document, weight index information for sub-block merge candidates of a current block can be derived and coding efficiency can be increased.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: February 27, 2024
    Assignee: LG Electronics Inc.
    Inventors: Naeri Park, Junghak Nam, Hyeongmoon Jang
  • Patent number: 11910004
    Abstract: Difference calculation based on partial position is described. In a representative aspect, a method of video processing comprising: calculating, during a conversion between a current block of video and a bitstream representation of the current block, differences between two reference blocks associated with the current block or differences between two reference sub-blocks associated with a sub-block within the current block based on representative positions of the reference blocks or representative positions of the reference sub-blocks; and performing the conversion based on the differences.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: February 20, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Jizheng Xu, Yue Wang
  • Patent number: 11895315
    Abstract: An image decoding method according to the present disclosure includes deriving a history-based motion vector prediction (HMVP) buffer for a current block, deriving motion information of the current block based on an HMVP candidate included in the HMVP buffer, generating prediction samples for the current block based on the motion information, and generating reconstructed samples based on the prediction samples, and the HMVP buffer is initialized when processing a first-ordered CTU in a CTU row in which a current CTU is located, and the current block is included in the current CTU.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: February 6, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Naeri Park, Junghak Nam, Hyeongmoon Jang
  • Patent number: 11876992
    Abstract: An image decoder parses an encoded bitstream to obtain a first parameter and a second parameter, and derives a partition mode based on the first and second parameters. Responsive to the derived partition mode being a first partition mode, the image decoder executes the first partition mode including; splitting a block of a picture into a plurality of first blocks including a N×2N block sized N pixels by 2N pixels; splitting the N×2N block, wherein a ternary split is allowed to split the N×2N block in a vertical direction, which is a direction along the 2N pixels, into a plurality of sub blocks including at least one sub block sized N/4×2N, while a binary split is not allowed to split the N×2N block in the vertical direction into two sub blocks that are equally sized N/2×2N; and decoding the plurality of sub blocks.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: January 16, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Chong Soon Lim, Hai Wei Sun, Sughosh Pavan Shashidhar, Ru Ling Liao, Han Boon Teo, Takahiro Nishi, Ryuichi Kanoh, Tadamasa Toma
  • Patent number: 11877013
    Abstract: The present disclosure relates to intra- or inter-prediction for video encoding and decoding. For that purpose, an apparatus and methods obtain a reference sample and a subpixel offset value. A 4-tap interpolation filter is used to filter the reference sample to obtain a predicted sample value. The filter coefficients c0, c1, c2, and c3 of the 4-tap interpolation filter satisfy c 0 = 16 - p 2 , c 1 = 16 + 16 - p 2 , c 2 = 16 + p 2 , and ? ? c 3 = p 2 , with p being a fractional part of the value of the subpixel offset.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: January 16, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Alexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy, Jianle Chen