Patents Examined by Kyle M Lotfi
  • Patent number: 11368704
    Abstract: A method of decoding a bitstream by an electronic device is provided. The electronic device receives the bitstream and determines, from the bitstream, a prediction mode enabled flag and an affine enabled flag both corresponding to one or more image frames. The electronic device determines, from the bitstream, a maximum index corresponding to the one or more image frames when the affine enabled flag is true. An index value of the maximum index is in an index range determined based on the prediction mode enabled flag. The electronic device determines a maximum number of zero or more subblock-based merging motion vector prediction (MVP) candidates based on the maximum index when the affine enabled flag is true. The electronic device reconstructs the one or more image frames based on the maximum number of the zero or more subblock-based merging MVP candidates.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: June 21, 2022
    Assignee: FG Innovation Company Limited
    Inventors: Yu-Chiao Yang, Chih-Yu Teng
  • Patent number: 11368744
    Abstract: Image data of each of pictures which constitute dynamic image data is classified into a plurality of layers, image data of each of the classified layers is encoded, and a video stream having the encoded image data of the pictures of each of the layers is generated. A container in a predetermined format which includes the generated video stream is transmitted. Decoding timing information, which has been set so that a higher layer has a shorter decoding time interval of the encoded image data of each of the pictures, is added to the encoded image data of the pictures of each of the layers. The operations enable a reception side to perform a favorable decoding process commensurate with its decoding capability.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: June 21, 2022
    Assignee: SONY CORPORATION
    Inventor: Ikuo Tsukagoshi
  • Patent number: 11363309
    Abstract: An encoder is configured to compress point cloud geometry information using an octree geometric compression technique that utilizes a binary arithmetic encoder, a look-ahead table, a cache, and a context selection process, wherein encoding contexts are selected based, at least in part, on neighborhood configurations. In a similar manner, a decoder is configured to decode compressed point cloud geometry information utilizing a binary arithmetic encoder, a look-ahead table, a cache, and a context selection process.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: June 14, 2022
    Assignee: Apple Inc.
    Inventors: Alexandros Tourapis, Jungsun Kim, Valery G. Valentin, Fabrice A. Robinet, Yeping Su, Khaled Mammou
  • Patent number: 11363298
    Abstract: A video processing apparatus and a processing method of video stream are provided. In the method, at least one encoding unit is formed in an image frame, sub-encoding units in multiple encoding units of an image sequence are encoded according to a correlation between a first sub-encoding unit and a second sub-encoding unit in the sub-encoding units, and a video stream is generated according to an encoded result of the image sequence. The image frame is an image of the image sequence, and each of the encoding units records encoding information of a belonging block.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: June 14, 2022
    Assignee: Wiston Corporation
    Inventors: Yuan-Bin Lee, Hsiao-Wen Tin
  • Patent number: 11343501
    Abstract: A video transcoding method is provided for a video transcoding device. The method includes obtaining a video sequence in source video data, which comprises a plurality of video sequences arranged in a sequence arrangement order; obtaining a source video frame in the video sequence; and obtaining a first ratio of a sum of absolute transformed differences of an initial frame in the video sequence to a bit rate of the video sequence. The method also includes adjusting a quantization parameter of the source video frame based on the first ratio; encoding the source video frame based on an adjusted quantization parameter to obtain a target video frame; replacing the source video frame with the target video frame to obtain a video sequence after the replacement; and adding the video sequence after the replacement to target video data according to the sequence arrangement order.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: May 24, 2022
    Assignees: CENTRAL SOUTH UNIVERSITY, TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Hao Zhang, Jianguang Wang, Xuerui Ma, Liang Wang, Haichang Zhai, Nianbo Liao
  • Patent number: 11321875
    Abstract: A long-baseline and long depth-range stereo vision system is provided that is suitable for use in non-rigid assemblies where relative motion between two or more cameras of the system does not degrade estimates of a depth map. The stereo vision system may include a processor that tracks camera parameters as a function of time to rectify images from the cameras even during fast and slow perturbations to camera positions. Factory calibration of the system is not needed, and manual calibration during regular operation is not needed, thus simplifying manufacturing of the system.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: May 3, 2022
    Assignee: NODAR Inc.
    Inventors: Leaf Alden Jiang, Philip Bradley Rosen, Piotr Swierczynski
  • Patent number: 11323744
    Abstract: A video data encoding method for encoding an array of video data values includes frequency-transforming the video data values according to a frequency transform, to generate an array of frequency-transformed values by a matrix-multiplication process using a transform matrix having a data precision greater than six bits.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: May 3, 2022
    Assignee: SONY GROUP CORPORATION
    Inventors: James Alexander Gamei, Karl James Sharman
  • Patent number: 11323703
    Abstract: A moving-image encoding device calculates a code amount generated by encoding a moving image including an I picture, a P picture, and a B picture as picture types, and calculates a complexity history of the picture which is encoded on the basis of the code amount and a quantization width used in the encoding. This moving-image encoding device estimates an estimated complexity of an encoding object picture to be encoded on the basis of the complexity history of an encoded picture of the same picture type as a picture type of the encoding object picture and the complexity history of the encoded picture immediately preceding the encoding object picture.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 3, 2022
    Assignee: NEC CORPORATION
    Inventor: Fumiyo Takano
  • Patent number: 11321876
    Abstract: A long-baseline and long depth-range stereo vision system is provided that is suitable for use in non-rigid assemblies where relative motion between two or more cameras of the system does not degrade estimates of a depth map. The stereo vision system may include a processor that tracks camera parameters as a function of time to rectify images from the cameras even during fast and slow perturbations to camera positions. Factory calibration of the system is not needed, and manual calibration during regular operation is not needed, thus simplifying manufacturing of the system.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: May 3, 2022
    Assignee: NODAR Inc.
    Inventors: Leaf Alden Jiang, Philip Bradley Rosen, Piotr Swierczynski
  • Patent number: 11317097
    Abstract: The disclosure relates to a video encoding method and a video encoding apparatus, a computer-readable storage medium, and a computer device. The method includes: acquiring a current video frame and an initial quantization parameter; calculating first historical complexity corresponding to the current video frame at a first time granularity; acquiring a second available bit rate at a second time granularity corresponding to the current video frame and a current first available bit rate at the first time granularity corresponding to the current video frame; adjusting the second available bit rate and the first available bit rate according to complexity of the current video frame and the first historical complexity; updating the initial quantization parameter according to an adjusted second available bit rate to obtain a current quantization parameter; and encoding the current video frame according to the current quantization parameter.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: April 26, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Zhaorui Liu
  • Patent number: 11310515
    Abstract: An improved scheme for intra-inter prediction mode and an adaptive intra-inter prediction mode for video coding/decoding, including selecting a set of weightings in an intra-inter mode and applying position dependent intra prediction combination to modify at least one of an inter prediction sample and a reconstructed sample of an inter coded coding unit.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 19, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 11297321
    Abstract: A method of encoding a video sequence by an encoder supporting context-based adaptive binary arithmetic coding, CABAC is disclosed. The method comprises determining, by a rate controller, a compression parameter of the encoder based on a load parameter value, indicating a current actual load of the coding block, received from the coding block.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 5, 2022
    Assignee: AXIS AB
    Inventors: Fredrik Pihl, Viktor Edpalm
  • Patent number: 11280907
    Abstract: A depth imaging system includes an optical image sensor, an optical beam steering system, an object identification system, and a depth measurement system. The object identification system is coupled to the optical image sensor. The object identification system is configured to identify an object in an image captured by the optical image sensor. The depth measurement system is coupled to the optical beam steering device. The depth measurement system is configured to, responsive to identification of the object by the object identification system: direct an optical signal, via the optical beam steering device, to the object, and to determine a distance to the object based on a time-of-flight of the optical signal.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: March 22, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jeffrey Matthew Kempf, Vikrant R. Bhakta, Jeffrey Scott Farris
  • Patent number: 11282234
    Abstract: A long-baseline and long depth-range stereo vision system is provided that is suitable for use in non-rigid assemblies where relative motion between two or more cameras of the system does not degrade estimates of a depth map. The stereo vision system may include a processor that tracks camera parameters as a function of time to rectify images from the cameras even during fast and slow perturbations to camera positions. Factory calibration of the system is not needed, and manual calibration during regular operation is not needed, thus simplifying manufacturing of the system.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: March 22, 2022
    Assignee: NODAR Inc.
    Inventors: Leaf Alden Jiang, Philip Bradley Rosen, Piotr Swierczynski
  • Patent number: 11270134
    Abstract: A method for estimating distance to an object via a vehicular vision system includes disposing a camera at a vehicle so as to view at least exterior of the vehicle. An ECU is provided that includes an image processor. Multiple frames of image data are captured via the camera while the vehicle is moving, and are provided to the ECU. The provided captured frames of image data are processed to determine a three dimensional object present in a field of view of the camera, and a point of interest is determined on the determined object. An estimated location in three dimensional space of the determined point of interest relative to the vehicle is determined, and distance to the estimated location is estimated by comparing provided captured frames of image data where there is movement of the determined point of interest of the determined object relative to the camera.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: March 8, 2022
    Assignee: MAGNA ELECTRONICS INC.
    Inventors: Nikhil Gupta, Galina Okouneva, Liang Zhang
  • Patent number: 11272184
    Abstract: Systems and methods are disclosed for inter-coding of a video. To inter-code a frame relative to a previous frame of the video, techniques disclosed include partitioning the frame and the previous frame into corresponding portions. Then, for each portion of the frame, a difference between the frame's portion and its corresponding portion in the previous frame is determined. A probability for suppressing the determined difference is further devised as a function of the difference. A decision whether to suppress the difference is then made based on the probability. If a decision to suppress has been made, the difference between the frame portion and the corresponding portion in the previous frame is suppressed before the frame portion is inter-encoded relative to the corresponding portion in the previous frame.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: March 8, 2022
    Assignee: AXIS AB
    Inventor: Björn Benderius
  • Patent number: 11272167
    Abstract: There is provided an information processing apparatus including a control unit that controls display on the basis of a detection value indicating a focus state of a lens acquired from a stereoscopic imaging unit, and a captured image signal for a left eye and a captured image signal for a right eye acquired from the imaging unit.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: March 8, 2022
    Assignee: SONY CORPORATION
    Inventors: Hisakazu Shiraki, Takeshi Miyai, Kentaro Fukazawa, Tadashi Morishige
  • Patent number: 11247609
    Abstract: A vehicular vision system includes a driver-side camera and a passenger-side camera each having a lens and a two dimensional imaging array sensor. The cameras are disposed at respective sides of a body of a vehicle and each have a field of view exterior of the vehicle and at least rearward of the vehicle. Each imaging array sensor has a center region. Each lens is configured to focus light at the respective imaging array sensor, and the lens has a center axis. The lens is disposed at the respective imaging array sensor with the center axis of the lens laterally offset from the center region of the imaging array sensor in a direction away from the respective body side. A video display disposed in the vehicle and viewable by a driver of the vehicle displays video images derived from image data captured by the cameras.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: February 15, 2022
    Assignee: MAGNA ELECTRONICS INC.
    Inventors: Manfred Fürsich, Thomas Wierich
  • Patent number: 11233994
    Abstract: According to a first aspect, a method is provided. The method includes obtaining an M×N array of pixel values an image; determining a weight selection value for position x,y in the M×N array; and using the weight selection value to obtain a weight value for use in a filter for filtering the image. Determining the weight selection value for position x,y (omegax,y) includes: a) retrieving a previously determined weight selection value for position x,y?1 (omegax,y?1); b) retrieving a previously determined alpha value (a) for position x,y?1; c) calculating a delta value (d); and d) calculating omegax,y=omegax,y?1?a+d. Calculating d includes: i) retrieving a first previously determined value (omega_row); i) retrieving a second previously determined value (alpha_row); and ii) calculating d=omega_row?alpha_row+abs(Ax+1,y+1?Ax+1,y+2), wherein Ax+1,y+1 is the value stored in position x+1,y+1 of the array and Ax+1,y+2 is the value stored in position x+1,y+2 of the array.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: January 25, 2022
    Assignee: TELEFONAKTTEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jacob Ström, Per Wennersten, Jack Enhorn, Du Liu
  • Patent number: 11234014
    Abstract: A method and device for encoding a plurality of image frames uses two separate encoders, where each image frame is divided into two portions to each be encoded by one of the two encoders, where the image frame is divided to minimize motion across the boundary between the two portions, such that the two encoders may operate independently of each other without a substantial bit rate penalty or reduced encoding quality.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: January 25, 2022
    Assignee: AXIS AB
    Inventor: Bjorn Ardo