Patents Examined by Chikaodili E Anyikire
  • Body temperature estimation via thermal intensity distribution
    Patent number: 11598671
    Abstract: A method for estimating human body temperature includes receiving, via a thermal camera, one or more thermal images captured of a real-world environment, the one or more thermal images including thermal intensity values for each of a plurality of pixels. Positions of a plurality of human faces are identified in the one or more thermal images. A distribution of thermal intensity values of the plurality of human faces is determined. A position of a test human face of a test human subject is identified within a subsequent thermal image. One or more test thermal intensity values of one or more pixels corresponding to the test human face are identified. An indication of a body temperature of the test human subject is reported based on a comparison of the one or more test thermal intensity values and the distribution of thermal intensity values of the plurality of human faces.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: March 7, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Raymond Kirk Price, Michael Bleyer, Christopher Douglas Edmonds
  • Local weighted prediction
    Patent number: 11595689
    Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. An apparatus includes processing circuitry that decodes prediction information for a current block in a current picture that is a part of a coded video sequence. The processing circuitry determines prediction samples of the current block based on a first linear transform of reference samples of the current block. One or more parameters of the first linear transform are determined based on one of the prediction information and one or more parameters of a second linear transform associated with another block in the coded video sequence. The processing circuitry reconstructs the current block based on the prediction samples.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: February 28, 2023
    Assignee: Tencent America LLC
    Inventors: Guichun Li, Xiang Li, Xiaozhong Xu, Anish Mahendra Tamse, Shan Liu
  • Motion compensation using size of reference picture
    Patent number: 11589037
    Abstract: A video coder is configured to determine a reference block of a reference picture for prediction of a current block of a current picture using motion information and to generate a set of reference samples for the current block of the current picture. To generate the set of reference samples, the video coder is configured to perform reference sample clipping on the reference block of the reference picture based on a size of the reference picture. The video coder is further configured to generate a prediction block for the current block of the current picture based on the set of reference samples.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: February 21, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Vadim Seregin, Yao-Jen Chang, Muhammed Zeyd Coban
  • Pixel intensity modulation using modifying gain values
    Patent number: 11579441
    Abstract: A visual perception device has a look-up table stored in a laser driver chip. The look-up table includes relational gain data to compensate for brighter areas of a laser pattern wherein pixels are located more closely than areas where the pixels are further apart and to compensate for differences in intensity of individual pixels when the intensities of pixels are altered due to design characteristics of an eye piece.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: February 14, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Richard Stephen Johnston, Brian T. Schowengerdt
  • DC coefficient signaling at small quantization step sizes
    Patent number: 11575913
    Abstract: Described tools and techniques relate to signaling for DC coefficients at small quantization step sizes. The techniques and tools can be used in combination or independently. For example, a tool such as a video encoder or decoder processes a VLC that indicates a DC differential for a DC coefficient, a FLC that indicates a value refinement for the DC differential, and a third code that indicates the sign for the DC differential. Even with the small quantization step sizes, the tool uses a VLC table with DC differentials for DC coefficients above the small quantization step sizes. The FLCs for DC differentials have lengths that vary depending on quantization step size.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: February 7, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Chih-Lung Lin, Shankar Regunathan, Sridhar Srinivasan
  • Coding method and apparatus with candidate motion vectors
    Patent number: 11575930
    Abstract: A moving picture coding apparatus, method, and medium for coding a current block of a picture are provided. A motion vector candidate list is generated that includes motion vector candidates and, for each of the motion vector candidates, a value. The motion vector candidates include a first candidate and a second candidate. The second candidate is arranged before the first candidate in the motion vector candidate list. The first candidate is sorted before the second candidate in the motion vector candidate list based on the value of the first candidate and the value of the second candidate. The value of the first candidate is higher than the value of the second candidate. For each of the motion vector candidates, the value is based on a number of times the motion vector candidate is selected as a motion vector predictor for neighboring blocks.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: February 7, 2023
    Assignee: SUN PATENT TRUST
    Inventors: Toshiyasu Sugio, Takahiro Nishi, Youji Shibahara, Kyoko Tanikawa, Hisao Sasai, Toru Matsunobu
  • Adaptive multiple quantization
    Patent number: 11570451
    Abstract: With adaptive multiple quantization, a video or other digital media codec can adaptively select among multiple quantizers to apply to transform coefficients. The switch in quantizers can be signaled at the sequence level or frame level of the bitstream syntax, or can be implicitly specified in the syntax.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: January 31, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Thomas W. Holcomb, Chih-Lung Lin, Pohsiang Hsu, Sridhar Srinivasan
  • Inverse quantization device and method used in video decoding device
    Patent number: 11570439
    Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 31, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
  • Encoder, a decoder and corresponding methods using history based motion vector prediction
    Patent number: 11558607
    Abstract: Embodiments provide methods and devices (encoder and/or decoder) of coding a picture. A History Based Motion Vector Prediction (HMVP) list for a current Coding Tree Unit (CTU) row within a tile of a picture is initialized and a CTU of the current CTU row is processed based on the initialized HMVP list.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: January 17, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anand Meher Kotra, Jianle Chen, Semih Esenlik, Biao Wang, Han Gao, Zhijie Zhao
  • Prediction refinement for combined inter intra prediction mode
    Patent number: 11558634
    Abstract: A method for processing a video includes performing a conversion between a current block of visual media data and a corresponding coded representation of the visual media data, wherein the conversion of the current block includes determining whether a use of one or both of a bi-directional optical flow (BIO) technique or a decoder-side motion vector refinement (DMVR) technique to the current block is enabled or disabled, and wherein the determining the use of the BIO technique or the DMVR technique is based on a cost criterion associated with the current block.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: January 17, 2023
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Jizheng Xu, Yue Wang
  • Encoder, a decoder and corresponding methods for inter prediction
    Patent number: 11558632
    Abstract: A prediction method for an image block comprising a first prediction sub-block and a second prediction sub-block, the prediction method comprising: parsing a first index from a bitstream, wherein the first index is used to obtain prediction information of the first prediction sub-block; parsing a second index from the bitstream; comparing the first index with the second index; adjusting the second index in the event that the second index is equal to or greater than the first index; and obtaining prediction information of the second prediction sub-block according to the adjusted second index.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: January 17, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Timofey Mikhailovich Solovyev, Semih Esenlik, Jianle Chen, Anand Meher Kotra, Han Gao, Biao Wang, Roman Igorevich Chernyak, Alexander Alexandrovich Karabutov, Sergey Yurievich Ikonin
  • Method of intra predicting a block of a picture
    Patent number: 11553174
    Abstract: The present disclosure provides methods and devices of intra predicting a block of a picture. The method comprises for a sample of the block: obtaining a predicted sample value from one or more reference sample values by performing intra-prediction using a DC intra-prediction mode; multiplying the predicted sample value by a sample weighting factor to produce a weighted predicted sample value; adding an additional value to the weighted predicted sample value to produce a non-normalized predicted sample value; and normalizing the non-normalized predicted sample value by an arithmetic right shift; wherein the sample weighting factor is ((2<<p)?wL?wT), wherein p is a parameter of the sample weighting factor, wL is a horizontal weighting factor, and wT is a vertical weighting factor.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: January 10, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Alexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy, Jianle Chen
  • Method and apparatus for intra picture block compensation
    Patent number: 11553197
    Abstract: A method of video decoding for a decoder is provided. In the method, prediction information of a block of a coded region in a video is coded from a coded video bitstream. The prediction information includes high level signaling information. A determination is made as to whether a prediction mode of the block is an intra block copy (IBC) mode based on a value of the high level signaling information and constraint information. The value of the high level signaling information is indicative of a maximum number of motion vector prediction candidates in a motion vector prediction candidate list for the IBC mode. The block is thus decoded based on whether the prediction mode of the block is determined as the IBC mode.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 10, 2023
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiaozhong Xu, Xiang Li, Shan Liu
  • Image acquisition for medical dose preparation system
    Patent number: 11551798
    Abstract: Use of improved image acquisition for a medical dose preparation system. The medical dose preparation system may include a work station for capturing medical dose preparation images (e.g., to document preparation of a mediation dose). The medical dose preparation image may be captured by a video data stream processor capable of performing an auto cropping technique on a video data stream received from an image device. Accordingly, memory resources may be more efficiently employed while maintaining high quality medical dose preparation images.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: January 10, 2023
    Assignee: BAXTER CORPORATION ENGLEWOOD
    Inventor: Wesley J. Weber
  • Method and device for processing video signal by using intra-prediction
    Patent number: 11546632
    Abstract: Embodiments in the present specification provide a video signal processing method and device. A method of processing a video signal according to an embodiment in the present specification comprises the steps of: acquiring an intra-prediction mode for a current block from the video signal; determining a modified intra-prediction mode from the intra-prediction mode for the current block on the basis of the width and height of and the intra-prediction mode for the current block; and applying a transform determined on the basis of the modified intra-prediction mode. The accuracy of prediction can be further improved by deriving a modified intra-prediction mode according to a wide-angle intra-prediction mode according to the shape of and an intra-prediction mode for a current block.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: January 3, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Moonmo Koo, Jaehyun Lim, Seunghwan Kim
  • Encoder, a decoder and corresponding methods for sub-block partitioning mode
    Patent number: 11539948
    Abstract: A method of coding implemented by a decoding device, comprising obtaining a bitstream; obtaining a value of an indicator for a current block according to the bitstream; obtaining a value of a first parameter for the current block and a value of a second parameter for the current block, according to the value of the indicator and a predefined lookup table; obtaining a value of a sample distance for a sample which is located in the current block, according to the value of the first parameter and the value of the second parameter; obtaining a prediction value for the sample, according to the value of the sample distance for the sample.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: December 27, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Semih Esenlik, Max Blaeser, Zhijie Zhao, Han Gao, Anand Meher Kotra, Biao Wang, Elena Alexandrovna Alshina
  • Method and apparatus for encoding/decoding image
    Patent number: 11539972
    Abstract: A method and an apparatus for encoding/decoding an image according to the present invention may determine a reference area that is a pre-reconstructed area spatially adjacent to a current block on the basis of reference information for specifying the position of a reference area used for predicting a current block and may predict the current block on the basis of the reference area.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: December 27, 2022
    Assignee: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Joo Hee Moon, Dong Jae Won, Jae Min Ha, Sung Won Lim
  • Visualization system for visualizing of a three-dimensional target region of an object
    Patent number: 11533465
    Abstract: A system for visualizing a three-dimensional target area of an object with a measuring device which determines a distance of a surgical instrument in a target area with respect to a predetermined structure in the target area, a display unit for representing the views, and a control unit. The control unit controls the display unit such that the display unit is in a first display mode when a determined distance is greater than a predetermined first limit value, and switches from the first display mode into a second display mode when the determined distance changes from being greater than a predetermined second limit value, which is smaller than or equal to the predetermined first limit value, to smaller than the predetermined second limit value.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: December 20, 2022
    Assignee: Carl Zeiss Meditec AG
    Inventors: Christoph Hauger, Alois Regensburger
  • Sample sets and new down-sampling schemes for linear component sample prediction
    Patent number: 11528483
    Abstract: The disclosure regards cross-component prediction and methods for deriving of a linear model for obtaining a first-component sample for a first-component block from an associated reconstructed second-component sample of a second-component block in the same frame, the method comprising determining the parameters of a linear equation representing a straight line passing through two points, each point being defined by two variables, the first variable corresponding to a second-component sample value, the second variable corresponding to a first-component sample value, based on reconstructed samples of both the first-component and the second-component; and deriving the linear model defined by the straight line parameters.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: December 13, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Guillaume Laroche, Jonathan Taquet, Patrice Onno, Christophe Gisquet
  • Encoder, decoder, encoding method, and decoding method
    Patent number: 11509908
    Abstract: An encoder includes circuitry and a memory connected to the circuitry. In operation, the circuitry: generates a plurality of predicted values of a pixel in a current picture to be encoded, using a plurality of reference pixels in the current picture, and enables or disables a process of determining a predicted value of the pixel on a block-by-block basis based on availability of at least one reference pixel among the plurality of reference pixels by filtering the plurality of predicted values based on a position of the pixel.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: November 22, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Virginie Drugeon, Tadamasa Toma, Takahiro Nishi, Kiyofumi Abe