Patents Examined by Shanika M Brumfield
  • Patent number: 11394995
    Abstract: A method for video processing is provided to include performing, for a conversion between a current video block of a video and a coded representation of the video, a motion information refinement process based on samples in a first domain or a second domain; and performing the conversion based on a result of the motion information refinement process, wherein, during the conversion, the samples are obtained for the current video block from a first prediction block in the first domain using an unrefined motion information, at least a second prediction block is generated in the second domain using a refined motion information used for determining a reconstruction block, and reconstructed samples of the current video block are generated based on the at least the second prediction block.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: July 19, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11389051
    Abstract: The present disclosure provides systems and methods for medical imaging. The system may comprise an optical adapter. The optical adapter may comprise a housing that comprises (1) a first end configured to releasably couple to a scope and (2) a second end configured to releasably couple to a camera. The optical adapter may comprise an image sensor coupled to the housing. The optical adapter may comprise an optics assembly disposed in the housing. The optics assembly may be configured to (1) receive light signals that are reflected from a target site within a subject's body and transmitted through the scope, and (2) reflect a first portion of the light signals onto the image sensor while permitting a second portion of the light signals to pass through to the camera.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: July 19, 2022
    Assignee: Activ Surgical, Inc.
    Inventors: Stephen Tully, John Oberlin, Emanuel DeMaio, Liam O'Shea, Vasiliy Buharin, Thomas Calef
  • Patent number: 11394958
    Abstract: An image encoding device (1) includes a motion compensation predictor (109) configured to generate a prediction image corresponding to a target image by performing motion compensation prediction using a plurality of reference images, and an evaluator (111) configured to evaluate prediction accuracy of the prediction image for each image portion including one or more pixels by calculating a degree of similarity between the plurality of reference images for each image portion.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: July 19, 2022
    Assignee: NIPPON HOSO KYOKAI
    Inventors: Atsuro Ichigaya, Shunsuke Iwamura, Shimpei Nemoto, Kazuhisa Iguchi
  • Patent number: 11388397
    Abstract: Provided are a video picture component prediction method and apparatus, and a computer storage medium.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: July 12, 2022
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Junyan Huo, Shuai Wan
  • Patent number: 11388401
    Abstract: Transform-level partitioning of a prediction residual block is performed to improve compression efficiency of video data. During encoding, a prediction residual block is generated responsive to prediction-level partitioning performed against a video block, a transform block partition type to use is determined based on the prediction residual block, a non-recursive transform-level partitioning is performed against the prediction residual block according to the transform block partition type, and transform blocks generated as a result of the transform-level partitioning are encoded to a bitstream.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: July 12, 2022
    Assignee: GOOGLE LLC
    Inventors: Sarah Parker, Debargha Mukherjee, Yue Chen, Elliott Karpilovsky, Urvang Joshi
  • Patent number: 11381760
    Abstract: An infrared imaging apparatus having thin film spatial filters in a stacked array to filter and collate light generated internally by the infrared imaging apparatus such that the light generated impacts a detection area of the imaging apparatus at or near a critical angle. The index of refraction of the detection area being subject to change when irradiated with infrared light such that the amount of light generated internally and reflected to a light detector attached to the imaging apparatus varies with the intensity of the irradiating infrared light.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: July 5, 2022
    Inventor: James Scholtz
  • Patent number: 11375186
    Abstract: An encoder includes processing circuitry and a memory coupled to the processing circuitry. Using the memory, the processing circuitry is configured to: change values of pixels in a first block and a second block to filter a boundary between the first block and the second block, using clipping such that change amounts of the respective values do not exceed respective thresholds, the pixels in the first block and the second block being arranged along a line across the boundary. The pixels include type one pixels and type two pixels different from the type one pixels. The respective thresholds for the type one pixels in the first block and the second block are selected to be symmetrical or asymmetrical with respect to the boundary based on block sizes of the first block and the second block.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: June 28, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Ryuichi Kanoh, Takahiro Nishi, Tadamasa Toma
  • Patent number: 11375219
    Abstract: A video decoding method includes obtaining an encoded bitstream of an original video content, and obtaining signaling information associated with the encoded bitstream. The signaling information includes at least a sequence parameter set (SPS), which includes a parameter bit_depth_luma_minus8, which specifies a bit depth of samples of a luma array and a value of a luma quantization parameter range offset; and a parameter bit_depth_chroma_minus8, which specifies a bit depth of samples of a chroma array and a value of a chroma quantization parameter range offset.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: June 28, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Yixin Du, Xin Zhao, Xiang Li, Liang Zhao, Shan Liu
  • Patent number: 11350100
    Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block according to a rule, where the rule specifies a relationship between applicability of a matrix based intra prediction (MIP) mode or a transform mode during the conversion, where the MIP mode includes determining a prediction block of the current video block by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation, and where the transform mode specifies use of a transform operation for the determining the prediction block for the current video block.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: May 31, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu
  • Patent number: 11350099
    Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block using a matrix based intra prediction (MIP) mode in which a prediction block of the current video block is determined by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation, where the performing the conversion includes deriving, according to a rule, boundary samples by applying a left bit shift operation or a right bit shift operation on a sum of at least one reference boundary sample, and where the rule determines whether to apply the left bit shift or the right bit shift operation.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: May 31, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu
  • Patent number: 11317077
    Abstract: Methods and systems for collecting camera calibration data using wearable devices are described. An augmented reality interface may be provided at a wearable device. Three-dimensional virtual information may be presented at the augmented reality interface. The three-dimensional information may identify a field of view of a remote camera and may be associated with collection of calibration data for the remote camera. Calibration data collected by the remote camera viewing a calibration target in the field of view may be received. The camera may be calibrated based at least in part on the calibration data.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 26, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: James Christopher Curlander, Gur Kimchi, Barry James O'Brien, Jason Leonard Peacock
  • Patent number: 11303921
    Abstract: A method for video processing is provided to include performing, for a conversion between a current video block of a video and a coded representation of the video, a motion information refinement process based on samples in a first domain or a second domain; and performing the conversion based on a result of the motion information refinement process, wherein, during the conversion, the samples are obtained for the current video block from a first prediction block in the first domain using an unrefined motion information, at least a second prediction block is generated in the second domain using a refined motion information used for determining a reconstruction block, and reconstructed samples of the current video block are generated based on the at least the second prediction block.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: April 12, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11303899
    Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block using a matrix based intra prediction (MIP) mode in which a prediction block of the current video block is determined by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation, where the performing the conversion includes deriving, according to a rule, boundary samples by applying a left bit shift operation or a right bit shift operation on a sum of at least one reference boundary sample, and where the rule determines whether to apply the left bit shift or the right bit shift operation.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: April 12, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu
  • Patent number: 11295440
    Abstract: Apparatus and methods are described for use with a sample that includes a plurality of red blood cells. A series of images associated with a series of depth levels of the sample are acquired, by performing a depth scan of the sample with a microscope. One of the depth levels is identified as being an optimum focal plane for imaging one or more entities within the sample using the microscope, by identifying that a drop in image contrast occurs at the identified depth level. The sample is imaged using the microscope, by focusing the microscope at an investigative depth level that is based on the identified depth level. Other applications are also described.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: April 5, 2022
    Assignee: S.D. Sight Diagnostics Ltd.
    Inventors: Yuval Greenfield, Yonatan Bilu, Joseph Joel Pollak, Noam Yorav-Raphael
  • Patent number: 11272183
    Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block using a matrix based intra prediction (MIP) mode in which a prediction block of the current video block is determined by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation, where the performing the conversion includes deriving, according to a rule, boundary samples by applying a left bit shift operation or a right bit shift operation on a sum of at least one reference boundary sample, and where the rule determines whether to apply the left bit shift or the right bit shift operation.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: March 8, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Zhipin Deng, Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu
  • Patent number: 11259030
    Abstract: The present invention relates to an intra prediction scheme among video coding techniques and, more particularly, relates to a video decoding method and apparatus for diving a block into a plurality of sub-blocks when intra prediction is performed and sequentially performing infra prediction on each of the sub-blocks. The decoding method performed by a video decoding apparatus includes determining whether to perform sub-block-based intra prediction on a current coding unit, dividing the current coding unit into a plurality of sub-blocks, performing intra prediction on each of the sub-blocks when a result of determination of whether to perform sub-block-based intra prediction has a value of “true”, and directly performing block-based intra prediction on the current coding unit without dividing the current coding unit when the result of the determination has a value of “false”.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: February 22, 2022
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Yong Jo Ahn, Ho Chan Ryu
  • Patent number: 11240477
    Abstract: The present invention provides a method and a device for image rectification, which are applied in the field of image processing. The method includes: receiving two images, the two images are images of a target object captured from different viewpoints; performing an epipolar rectification on the two images; rectifying the two images after the epipolar rectification based on the image contents; and splicing the two images after the rectification based on the image contents. The method can rectify the images captured from different viewpoints, thereby ensuring the pixel alignment, and avoiding visual discomfort to the viewer.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 1, 2022
    Assignee: ArcSoft Corporation Limited
    Inventors: Wang Miao, Li Yu, Xin Fan
  • Patent number: 11240493
    Abstract: Apparatuses and methods for encoding and decoding a video are provided. A method includes determining whether at least one of two blocks of an image in a video is predicted with a combined inter-intra prediction (CIIP), wherein the two blocks include a first block (block Q) and a second block (block P). There is a boundary between the two blocks. The method further includes setting a boundary strength (Bs) for the boundary to a first value based on determining that at least one of the two blocks is predicted with the CIIP, and performing deblocking for the boundary between the first block and the second block based on the Bs to generate a modified reconstructed block for each of the first block and the second block.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: February 1, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Biao Wang, Anand Meher Kotra, Semih Esenlik, Han Gao, Jianle Chen
  • Patent number: 11234011
    Abstract: An image decoding apparatus is provided with a CT information decoding unit that decodes division information indicating a division method for binary tree division with respect to a coding node of a coding tree unit, and performs the binary tree division with respect to the coding node by referring to the division information of another decoded coding node.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: January 25, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiya Yamamoto, Yukinobu Yasugi, Tomohiro Ikai, Tomoko Aono
  • Patent number: 11228782
    Abstract: Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: January 18, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-soo Jeong, Min-woo Park, Jin-young Lee, Sun-il Lee