Motion Vector Generation Patents (Class 348/699)
  • Patent number: 11503325
    Abstract: Several methods and systems for estimating motion in a plurality of multimedia pictures are disclosed. In an embodiment, at least one temporal distance between a multimedia picture and one or more reference pictures corresponding to the multimedia picture in a capture order associated with the plurality of multimedia pictures is computed. The at least one temporal distance is computed subsequent to an encoding of the multimedia picture. At least one motion estimation parameter is determined based on the at least one temporal distance. Motion associated with a subsequent multimedia picture to be encoded is estimated based on the at least one motion estimation parameter.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: November 15, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Arun Shankar Kudana, Soyeb Nagori
  • Patent number: 11481600
    Abstract: A semiconductor device includes a core output driver, a pad input driver, and an arithmetic result data generation circuit. The core output driver transmits a first data, output from a core region, to a global input/output (I/O) line when an arithmetic operation is performed. The pad input driver transmits a second data, input through a pad region, to the global I/O line when the arithmetic operation is performed. The arithmetic result data generation circuit sequentially receives the first data and the second data through the global I/O line, to generate a core data and a pad data. The arithmetic result data generation circuit also performs an arithmetic operation, used in a neural network, based on the core data and the pad data, to generate arithmetic data.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: October 25, 2022
    Assignee: SK hynix Inc.
    Inventor: Choung Ki Song
  • Patent number: 11445211
    Abstract: Techniques for psychovisually optimized dithering for image and video (e.g., frame) encoding are described. According to some embodiments, a computer-implemented method includes receiving a request to encode a video from a first depth of pixel values to a second, different depth of pixel values at a content delivery service, detecting a flat region without texturing and a non-flat region with texturing in a first frame of the video having the first depth of pixel values, dithering pixel values in the non-flat region and flattening pixel values in the flat region, encoding the dithered pixel values and the flattened pixel values of the frame into a first encoded frame having the second, different depth of pixel values by the content delivery service, and transmitting the first encoded frame from the content delivery service to a viewer device.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: September 13, 2022
    Assignee: Amazon Technologies, Inc.
    Inventor: Charles Benjamin Waggoner
  • Patent number: 11436165
    Abstract: A high-bandwidth memory (HBM) includes a memory and a controller. The controller receives a data write request from a processor external to the HBM and the controller stores an entry in the memory indicating at least one address of data of the data write request and generates an indication that a data bus is available for an operation during a cycle time of the data write request based on the data write request comprising sparse data or data-value similarity. Sparse data includes a predetermined percentage of data values equal to zero, and data-value similarity includes a predetermined amount of spatial value locality of the data values. The predetermined percentage of data values equal to zero of sparse data and the predetermined amount of spatial value locality of the special-value pattern are both based on a predetermined data granularity.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 6, 2022
    Inventors: Krishna T. Malladi, Dimin Niu, Hongzhong Zheng
  • Patent number: 11405632
    Abstract: The present disclosure relates to motion vector refinement. As a first step, an initial motion vector and a template for the block are obtained. Then, the refinement of the initial motion vector is determined by template matching with said template in a search space. The search space is located on a position given by the initial motion vector and includes one or more fractional sample positions, wherein each of the fractional sample positions belonging to the search space is obtained by interpolation filtering with a filter of a predefined tap-size assessing integer samples only within a window, said window being formed by integer samples accessible for the template matching in said search space.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: August 2, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Semih Esenlik, Anand Meher Kotra, Zhijie Zhao, Han Gao
  • Patent number: 11394997
    Abstract: A method and a device for encoding or decoding video data. It concerns more particularly the encoding according to a particular encoding mode using a decoder side motion vector derivation mode referenced as frame-rate up conversion mode or FRUC mode. In FRUC merge mode, the derivation process comprises a refinement step to increase the accuracy of the obtained motion vector at the sub-pixel level. This process involves the evaluation of different sub-pixel position around the obtained motion vector according to different patterns. The present invention has been devised to improve the known refinement step. It aims at improving the coding efficiency by considering the characteristics of the matching type and/or the signal inside the templates.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 19, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Guillaume Laroche, Patrice Onno, Jonathan Taquet, Christophe Gisquet
  • Patent number: 11356692
    Abstract: The present invention provides an image encoding method and an image decoding method. An image decoding method according to the present invention, for decoding an image by decoder-side motion information derivation, comprises the steps of: checking, from among a plurality of motion information derivation types, the motion information derivation type applied to the current block: and deriving motion information of the current block according to the checked motion information derivation type, wherein different motion information compensation techniques are applicable according to the motion information derivation type.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: June 7, 2022
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Yong Jo Ahn, Ho Chan Ryu
  • Patent number: 11348324
    Abstract: An information processing device (100) extracts a first point group constituting an object from a first distance image acquired by a first sensor. The information processing device (100) extracts a second point group constituting an object from a second distance image acquired by a second sensor. The information processing device (100) generates a first translated point group by translating the first point group by first translation coordinates. The information processing device (100) generates a second translated point group by translating the second point group by second translation coordinates. The information processing device (100) calculates a rotation parameter and a translation parameter based on the first translated point group and the second translated point group.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: May 31, 2022
    Assignee: FUJITSU LIMITED
    Inventor: Satoru Ushijima
  • Patent number: 11343530
    Abstract: The present invention relates to a method for encoding and decoding an image. The method for decoding an image includes: deriving an initial motion vector from a merge candidate list of a current block; deriving a refined motion vector using the initial motion vector; and generating a prediction block of the current block using the refined motion vector.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: May 24, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Ha Hyun Lee, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Patent number: 11343525
    Abstract: Aspects of the disclosure provide a method and an apparatus for video coding. In some examples, an apparatus includes processing circuitry that determines a plurality of first sub-block motion vectors for a plurality of sub-blocks of a current block, and determines a plurality of second sub-block motion vectors according to the plurality of first sub-block motion vectors and a first target range. The processing circuitry also determines a set of gradient values associated with a current sample location in a current sub-block, determines an adjustment vector associated with the current sample location, and determines a set of adjustment values associated with the current sample location according to the set of gradient values and the adjustment vector. The processing circuitry generates a predicted sample associated with the current sample location according to a combination of a corresponding sample in a reference sub-block and the set of adjustment values.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: May 24, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Guichun Li, Xiang Li, Xiaozhong Xu, Shan Liu
  • Patent number: 11310524
    Abstract: A method includes obtaining a first motion vector of a motion compensation unit included in an affine code block. The method also includes determining a second motion vector based on the first motion vector, where a precision of the second motion vector matches a motion vector precision of a storage unit corresponding to the motion compensation unit. The method further includes determining a third motion vector based on the second motion vector, where there is a preset correspondence between the third motion vector and the second motion vector, and the third motion vector is used for subsequent encoding/decoding processing.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: April 19, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Huanbang Chen, Haitao Yang, Shan Gao, Jiantong Zhou, Shan Liu
  • Patent number: 11308858
    Abstract: The present disclosure relates to a signal processing device and an image display apparatus including the same. A signal processing device according to an embodiment of the present disclosure includes: an input interface to receive an image signal; a first image processor to generate first image frame data based on the image signal; a second image processor to generate second image frame data scaled down from the first image frame data based on the image signal; and an output interface to receive the first image frame data from the first image processor and the second image frame data from the second image processor and to output the first image frame data and the second image frame data, wherein the first image frame data output from the output interface is more delayed than the second image frame data output from the output interface. Accordingly, a timing controller may accurately and rapidly perform signal processing for a panel.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: April 19, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Jihoon Lee, Jongchan Kim, Kyeongryeol Park, Jeonghyu Yang, Seoksoo Lee, Byungtae Choi
  • Patent number: 11295140
    Abstract: A camera system may automatically identify high frequency motion regions in a field of view of the camera system. Analysis of motion events detected at different regions of a scene in the field of view, may be performed. Similar events frequently occurring at a certain region may be recorded/accumulated and compared to a threshold. Regions with high frequency activity may be determined and a user may be notified. If the user is not interested in events within the high activity regions, the regions may be ignored and notifications to the user may cease. The camera system may determine specific actions/events occurring in a region, such as a person approaching or leaving a home.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: April 5, 2022
    Assignee: COMCAST CABLE COMMUNICATIONS, LLC
    Inventors: Hongcheng Wang, Rui Min, Hong Li, Ruichi Yu
  • Patent number: 11290724
    Abstract: An inter prediction method includes parsing, by a processor, a bitstream to obtain a location of a target adjacent image block of a current image block. The method further includes obtaining a preset correspondence between an adjacent image block location and a motion vector precision, wherein in the preset correspondence, locations of at least two adjacent image blocks correspond to different motion vector precisions. The method further includes determining, based on the location of the target adjacent image block and the preset correspondence, a target motion vector precision corresponding to the target adjacent image block. The method further includes determining a motion vector predictor of the current image block based on the location of the target adjacent image block and the target motion vector precision.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 29, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shan Gao, Weiwei Xu, Huanbang Chen, Haitao Yang
  • Patent number: 11272305
    Abstract: An apparatus for generating a sound field description having a representation of sound field components, including a direction determiner for determining one or more sound directions for each time-frequency tile of a plurality of time-frequency tiles of a plurality of microphone signals; a spatial basis function evaluator for evaluating, for each time-frequency tile of the plurality of time-frequency tiles, one or more spatial basis functions using the one or more sound directions; and a sound field component calculator for calculating, for each time-frequency tile of the plurality of time-frequency tiles, one or more sound field components corresponding to the one or more spatial basis functions evaluated using the one or more sound directions and a reference signal for a corresponding time-frequency tile, the reference signal being derived from one or more microphone signals of the plurality of microphone signals.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: March 8, 2022
    Inventors: Emanuel Habets, Oliver Thiergart, Fabian Küch, Alexander Niederleitner, Affan-Hasan Khan, Dirk Mahne
  • Patent number: 11244197
    Abstract: A multimodal remote sensing image matching method and system integrate different local feature descriptors for automatic matching of multimodal remote sensing images. First, a local feature descriptor, such as the Histogram of Oriented Gradient (HOG), the local self-similarity (LSS), or the Speeded-Up Robust Feature (SURF), is extracted for each pixel of an image to form a pixel-wise feature representation map. Then, the three-dimensional Fourier transform (namely 3D FFT) is used to establish a fast matching similarity metric in a frequency domain based on the feature representation map, followed by a template matching scheme to achieve control points (CP) between images. In addition, the novel pixel-wise feature representation technique named channel features of orientated gradients (CFOG), which outperforms the pixel-wise feature representation methods based on the traditional local descriptors (e.g., HOG, LSS and SURF) in both matching performance and computational efficiency.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: February 8, 2022
    Assignee: SOUTHWEST JIAOTONG UNIVERSITY
    Inventor: Yuanxin Ye
  • Patent number: 11245912
    Abstract: A method for motion estimation is provided that includes determining a first motion vector for a first child coding unit (CU) of a parent CU and a second motion vector for a second child CU of the parent CU, wherein the first child CU, the second child CU, and the parent CU are in a CU hierarchy, wherein the first and second child CUs are smallest size CUs in the CU hierarchy, and wherein a first motion search type is used to determine the first motion vector and the second motion vector, selecting the first and second motion vectors as candidate predictors for the parent CU, selecting a predictor for a prediction unit (PU) of the first parent CU from the candidate predictors, and refining the predictor using a second motion search type to determine a motion vector for the PU.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: February 8, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Hyung Joon Kim, Minhua Zhou, Akira Osamoto, Hideo Tamama
  • Patent number: 11234017
    Abstract: A system comprises a source block buffer and a plurality of hardware motion estimation search processing units in communication with the source block buffer. The source block buffer is configured to store at least a portion of a source block of a source frame of a video. The plurality of hardware motion estimation search processing units are configured to perform at least a portion of a motion estimation for the source block at least in part in parallel across a plurality of different reference frames of the video. Each of the hardware motion estimation search processing units is configured to be assigned a different one of the plurality of different reference frames and is configured to compare at least the portion of the source block with a portion of the assigned one of the different reference frames.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: January 25, 2022
    Assignee: Meta Platforms, Inc.
    Inventors: Harikrishna Madadi Reddy, Xianliang Zha, Junqiang Lan, Sujith Srinivasan, Guogang Hua, Chung-Fu Lin
  • Patent number: 11227396
    Abstract: A method of performing adjustment of a convergence speed for an imaging parameter is based on detecting a motion of a selected face in a sequence of image frames. When the detected motion meets predefined motion criteria, a motion vector corresponding to the characterized motion of the face is computed. A value for a convergence adjustment factor for adjusting a convergence speed of an imaging parameter of the camera is determined based on the computed motion vector. The convergence speed of the imaging parameter of the camera is adjusted based on the determined value of the convergence adjustment factor.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: January 18, 2022
    Assignee: Meta Platforms, Inc.
    Inventors: Mooyoung Shin, Hao Sun
  • Patent number: 11216912
    Abstract: Systems and methods are disclosed for denoising chrominance channels of images. For example, methods may include receiving an image from one or more image sensors; determining a set of weights for the image based on a luminance channel of the image, wherein a weight in the set of weights corresponds to a subject pixel and a candidate pixel and is determined based on luminance values of one or more pixels of the image centered at the subject pixel and one or more pixels of the image centered at the candidate pixel; applying the set of weights to chrominance channels of the image to obtain a denoised image, wherein the subject pixel of the denoised image is determined based on the weight multiplied by the candidate pixel of the image; and storing, displaying, or transmitting an output image based on the denoised image.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: January 4, 2022
    Assignee: GoPro, Inc.
    Inventors: Thomas Nicolas Emmanuel Veit, Marc Lebrun
  • Patent number: 11212551
    Abstract: A load in processing of searching for a motion vector is reduced. In order to solve the problem described above, a motion vector derivation apparatus (3032, 3036 to 3038) according to one aspect of the present invention that derives a motion vector to be referred to for generating a prediction image to be used for coding or decoding of a video includes a motion vector search unit (30373) configured to search for a motion vector on a prediction unit basis through matching processing. The motion vector search unit (30373) is configured to stop search of the motion vector, depending on whether or not a conditional expression according to a pixel bit-depth is satisfied.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: December 28, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Takeshi Chujoh, Tomoko Aono, Tomohiro Ikai, Eiichi Sasaki, Yukinobu Yasugi
  • Patent number: 11199561
    Abstract: Motion windows are generated from a query activity sequence. For each of the motion windows in the query activity sequence, a corresponding motion window in the reference activity sequence is found. One or more difference calculations are performed between the motion windows of the query activity sequence and the corresponding motion windows in the reference activity sequence based on at least one criterion associated with physical meaning. Abnormality of the motion windows is determined based on the one or more difference calculations. A standardized evaluation result of the query activity sequence is output based on the detected abnormal motion windows in the query activity sequence.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: December 14, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Lincan Zou, Liu Ren, Huan Song, Cheng Zhang
  • Patent number: 11197015
    Abstract: A moving picture coding apparatus includes a co-located block information determination unit which determines which one of a forward reference block and a backward reference block will be a co-located block and further determines whether only the unidirectional motion vector of the motion vectors of the co-located block is to be stored in a colPic memory; a temporal motion vector predictor calculation unit which derives a candidate motion vector predictor in temporal motion vector predictor mode using the colPic information stored in the colPic memory; and an inter prediction control unit which determines to code a motion vector using a candidate motion vector predictor having least error from the motion vector derived by motion estimation among candidate motion vector predictors.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: December 7, 2021
    Assignee: SUN PATENT TRUST
    Inventors: Toshiyasu Sugio, Takahiro Nishi, Youji Shibahara, Hisao Sasai
  • Patent number: 11182901
    Abstract: A difference image representing intensity differences between a first medical image and a second medical image is generated. A mixture model is fitted to an intensity distribution of the difference image to identify a plurality of probability distributions which collectively model the intensity distribution. A plurality of intensity ranges is determined as a function of the plurality of probability distributions. Image data of the difference image is labeled by determining into which of the plurality of intensity ranges said labeled image data falls. This technique more accurately details changes in medical images than known systems and methods.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 23, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Tamar Debora Schirman, Shelly Theodora Yehezkely, Yossi Kam, Georgy Shakirin, Frank Olaf Thiele, Ruth Katz
  • Patent number: 11176423
    Abstract: Examples of techniques for adaptive object recognition for a target visual domain given a generic machine learning model are provided. According to one or more embodiments of the present invention, a computer-implemented method for adaptive object recognition for a target visual domain given a generic machine learning model includes creating, by a processing device, an adapted model and identifying classes of the target visual domain using the generic machine learning model. The method further includes creating, by the processing device, a domain-constrained machine learning model based at least in part on the generic machine learning model such that the domain-constrained machine learning model is restricted to recognize only the identified classes of the target visual domain. The method further includes computing, by the processing device, a recognition result based at least in part on combining predictions of the domain-constrained machine learning model and the adapted model.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: November 16, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Nirmit V. Desai, Dawei Li, Theodoros Salonidis
  • Patent number: 11176649
    Abstract: A system and method for identifying presence of digital ghosting artifacts in videos is disclosed. The method comprises estimating a blending parameter (?) for a current image using a previous image and a next image of a digital video stream. Successively, a blended image (B) is created by mixing contents of the previous image and the next image based on the estimated blending parameter (?). Thereafter, a first similarity is computed between the blended image (B) and a de-interlaced image (C), based on a Normalized Cross Correlation (NCC) between multiple blocks of the blended image (B) and the de-interlaced image (C). Successively, a second similarity is computed between the blended image (B) and the de-interlaced image (C), based on values of standard deviation of an absolute difference frame determined between the blended image (B) and the de-interlaced image (C).
    Type: Grant
    Filed: June 3, 2017
    Date of Patent: November 16, 2021
    Inventors: Alok Kumar, Bhupender Kumar, Paras Garg
  • Patent number: 11138711
    Abstract: A degradation detection device (10) includes: an image acquisition unit (11) that acquires an image sequence of a detection target; a matching point specification unit (12) that specifies matching points in the image sequence; a motion amount calculation unit (13) that, based on the specified matching points, for each frame that constitutes the image sequence, specifies motion occurring between the frame and a frame immediately previous thereto, and calculates a motion amount for each of the matching points along a time series; and a degraded region candidate specification unit (14) that specifies a region in which degradation has likely occurred in the image sequence, based on the motion amounts of the matching points that were calculated along the time series.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 5, 2021
    Assignee: NEC CORPORATION
    Inventors: Subhajit Chaudhury, Gaku Nakano
  • Patent number: 11126854
    Abstract: Technologies are disclosed for efficiently identifying objects in videos using deep neural networks and motion information. Using the disclosed technologies, the amount of time required to identify objects in videos can be greatly reduced. Motion information for a video, such as motion vectors, are extracted during the encoding or decoding of the video. The motion information is used to determine whether there is sufficient motion between frames of the video to warrant performing object detection on the frames. If there is insufficient movement from one frame to a subsequent frame, the subsequent frame will not be processed to identify objects contained therein. In this way, object detection will not be performed on video frames that have changed minimally as compared to a previous frame, thereby reducing the amount of time and the number of processing operations required to identify the objects in the video.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: September 21, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Andrea Olgiati, Nitin Singhal, Yuri Natanzon, Vasant Manohar, Davide Modolo
  • Patent number: 11122300
    Abstract: Examples are provided for apparatus and methods for video encoding and decoding. An encoder apparatus for encoding a picture into a data stream is configured to: subject a transform of a block of the picture to quantization to obtain a quantized transform; determine a zero-quantized portion of the quantized transform; determine at least one noise parameter providing noise information on the transform within the zero-quantized portion; signal the quantized transform and the at least one parameter.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: September 14, 2021
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Christian Helmrich, Paul Keydel, Sebastian Bosse
  • Patent number: 11109072
    Abstract: A method for encoding an image having been cut up into partitions. The method includes: predicting data of a current partition based on an already encoded and then decoded reference partition, generating a predicted partition; determining residual data by comparing data relating to the current partition with the predicted partition, the residual data associated with various digital data items. Prior producing a signal containing the encoded information, performing the following steps: determining, from the predetermined residual data, a subset containing residual data capable of being modified; calculating the value of a function representative of the residual data; comparing the calculated value with a value of at least one of the digital data items; based on the comparison, modification or non-modification of at least one of the residual data items of the subset; and, in the event of a modification, entropy encoding the at least one modified residual data item.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: August 31, 2021
    Assignee: Dolby International AB
    Inventors: Felix Henry, Gordon Clare
  • Patent number: 11108843
    Abstract: A wireless mesh network and a method of reducing for reducing a sampling rate of a streaming protocol in a multi-hop mesh network is disclosed. The method comprising: receiving, by a source node in the mesh network, an input data stream; generating, by the source node, a plurality of sample frames from the received input data stream, each of the plurality of sample frames having a sample rate that can be handled by the mesh network, transmitting the plurality of the sample frames to one or more sink nodes and reconstructing the input data stream from the plurality of sample frames received at the one or more sink nodes. The input data stream may be received from an application outside the mesh network or from an application in the source node. The reconstruction may use interpolation, which may be dynamically varied, and may be informed by metadata transmitted from the original source node.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: August 31, 2021
    Assignee: LumenRadio AB
    Inventor: Michael Karlsson
  • Patent number: 11095883
    Abstract: An encoder includes circuitry and memory connected to the circuitry. The circuitry, in operation: derives, as a first parameter, a total sum of absolute values of sums of horizontal gradient values respectively for pairs of relative pixel positions; derives, as a second parameter, a total sum of absolute values of sums of vertical gradient values respectively for the pairs of relative pixel positions; derives, as a third parameter, a total sum of horizontal-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fourth parameter, a total sum of vertical-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fifth parameter, a total sum of vertical-related sums of horizontal gradient values respectively for the pairs of relative pixel positions; and generates a prediction image to be used to encode the current block using the first, second, third, fourth, and fifth parameters.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: August 17, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tadamasa Toma, Takahiro Nishi, Kiyofumi Abe, Yusuke Kato
  • Patent number: 11087798
    Abstract: The systems and methods provided herein are directed to automatically capturing, curating, and sharing recordings of a user. The automated recording and sharing features are designed to adapt to user preferences based on a history of what the user has chosen to record and share previously.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: August 10, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Michael T. Sailer, Nathan G Brown, Katie C. Wallace, Alen Simon, James Keen, Spencer L. Mackay, Kimberlee C. Muenzer, Takuya Idehara, David K. B. Lee
  • Patent number: 11089325
    Abstract: An example device for coding video data may include a memory configured to store a current block of the video data and one or more processors implemented in circuitry coupled to the memory. The one or more processor may be configured to determine delta motion vectors from control point motion vectors of a neighboring block of a current block. The one or more processors may also be configured to clip the delta motion vectors to a predefined range. The one or more processors may also be configured to code the current block of video data using the clipped delta motion vectors.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: August 10, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Han Huang, Wei-Jung Chien, Marta Karczewicz
  • Patent number: 11082687
    Abstract: A video decoder selects a source affine block. The source affine block is an affine-coded block that spatially neighbors a current block. Additionally, the video decoder extrapolates motion vectors of control points of the source affine block to determine motion vector predictors for control points of the current block. The video decoder inserts, into an affine motion vector predictor (MVP) set candidate list, an affine MVP set that includes the motion vector predictors for the control points of the current block. The video decoder also determines, based on an index signaled in a bitstream, a selected affine MVP set in the affine MVP set candidate list. The video decoder obtains, from the bitstream, motion vector differences (MVDs) that indicate differences between motion vectors of the control points of the current block and motion vector predictors in the selected affine MVP set.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: August 3, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Yi-Wen Chen, Wei-Jung Chien, Li Zhang, Yu-Chen Sun, Jianle Chen, Marta Karczewicz
  • Patent number: 11076200
    Abstract: Systems and methods are provided herein for minimizing obstruction of a media asset by an overlay by predicting a path of movement of an object of interest of the media asset and avoiding placement of the overlay in the path of movement. To this end, a media guidance application may detect an object of interest in a first frame of a media asset, and may determine a determining a first location of the object in the first frame and a second location of the object of interest in a second frame. The media guidance application may calculate, based on the first location and the second location, a projected location of the object of interest in a third frame of the media asset, and may generate for display an overlay in a location that does not overlap with any of the first location, the second location, and the projected location.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 27, 2021
    Assignee: Rovi Guides, Inc.
    Inventors: Vikram Makam Gupta, Vishwas Sharadanagar Panchaksharaiah
  • Patent number: 11051715
    Abstract: The present invention relates to an image processing apparatus, an image processing method, and a recording medium for recording the same, the image processing apparatus including a storage configured to comprise a standard database (DB) established based on information about a predetermined anatomical entity; and at least one processor configured to obtain a local motion vector by registration between a first medical image and a second medical image taken by scanning an object including the anatomical entity, use a predictive local motion vector generated from the standard DB to normalize the local motion vector according to a plurality of regions in the anatomical entity, and make information about conditions of the anatomical entity based on the normalized local motion vector be provided according to the plurality of regions.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 6, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-hun Oh, Woo-hyun Nam, Yong-sup Park
  • Patent number: 11057641
    Abstract: Provided is a method of motion estimation for processing a video stream comprising a plurality of frames, the method including segmenting at least one frame, from among the plurality of frames, into a plurality of blocks, determining an event density factor for each block included in a frame, wherein the event density factor of the block corresponds to a number of events accumulated in the block across frames in a predetermined time duration, comparing the determined event density factor with a threshold value, estimating a motion vector of the block based on the comparison, and processing the block in the video stream based on the estimated motion vector of the block.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: July 6, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Manjit Hota, Karthik Srinivasan, Puneet Pandey, Ayush Goel
  • Patent number: 11039127
    Abstract: The present disclosure provides a video image decoding method in which a size of an affine motion compensation image sub-block in an affine image block is determined based on a motion vector difference, motion vector precision, a distance between control points in the affine image block, and a size of the affine image block, where the size includes a length in a horizontal direction and a length in a vertical direction, so that a length of the affine image block in a horizontal/vertical direction is an integer multiple of the length of the affine motion compensation image sub-block in the horizontal/vertical direction.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: June 15, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Huanbang Chen, Hong Zhang, Haitao Yang
  • Patent number: 11012708
    Abstract: Methods and hardware implementations for determining a motion vector between a first frame and a second frame. A block is obtained from the first frame. A reference window is obtained from the second frame. A set of lines are obtained from the block. The set of lines are delayed using a set of delay elements to produce a set of delayed lines. For each location of a search pattern comprising a plurality of locations arranged in a set of rows, a reference window line is obtained from the reference window, a block line is obtained from the set of delayed lines based on which row of the set of rows the location belongs to, and a similarity score of a plurality of similarity scores is accumulated based on the reference window line and the block line. A target location is identified by comparing the plurality of similarity scores.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: May 18, 2021
    Assignee: Amazon Technologies, Inc.
    Inventor: Kiran K Seshadri
  • Patent number: 10999577
    Abstract: A method of determining a quantization parameter includes determining an adjustment range of a quantization parameter correction value based on a size of a motion area of an input image, calculating an average bitrate value of the input image, and adjusting the quantization parameter correction value by decreasing the quantization parameter correction value within the adjustment range in response to determining that the average bitrate value is greater than an upper limit value, and by increasing the quantization parameter correction value within the adjustment range in response to determining that the average bitrate value is equal to or less than a lower limit value.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: May 4, 2021
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventors: Kyung Pyo Hong, Sujit Kumar Mahapatro, Yun Seok Kwon, Hee Gyu Baek
  • Patent number: 10990826
    Abstract: Detecting objects in video may include receiving object detections for a plurality of selected frames of a video from a still image detector, wherein the plurality of selected frames are non-adjacent frames of the video, propagating the object detections from the plurality of selected frames to sequential frames of the video adjacent to the plurality of selected frames based on a distance metric and vector flow data for the sequential frames, suppressing false positive object detections from the propagating, and outputting resulting object detections for the sequential frames of the video.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: April 27, 2021
    Assignee: Xilinx, Inc.
    Inventors: Mujib Haider, Venkata V. Dhanikonda, Ashish Sirasao
  • Patent number: 10986366
    Abstract: In a particular implementation, a video decoder may decode an initial motion vector predictor from the bitstream for a current block, and perform motion search in a small search window to refine the initial motion vector predictor. The initial motion vector may be rounded before being refined. The motion refinement can be based on a discontinuity measure between pixels of a current block and pixels of adjacent block, and can also be based on gradients between the current block and adjacent blocks. The motion vector for the current block is then decoded based on the refined motion vector predictor, and the motion vector difference if there is any. The motion refinement can also be performed on the motion vector for the current block directly. Through motion refinement, the decoder may increase the motion resolution. A corresponding video encoder may choose whether to use motion refinement based on encoder decisions.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: April 20, 2021
    Assignee: InterDigital VC Holdings, Inc.
    Inventors: Philippe Bordes, Fabien Racape, Tangi Poirier, Franck Galpin
  • Patent number: 10944951
    Abstract: The present disclosure relates to an information processing apparatus, an information processing method and a program as well as a recording medium for enabling at least a bit rate of an image to be reproduced to be converted. A BD-J execution unit sets conversion equation information indicating a conversion equation for converting at least a bit rate of a graphics to be reproduced. A conversion unit converts at least the bit rate of the graphics to be reproduced by use of the conversion equation indicated by the conversion equation information set by the BD-J execution unit. The present disclosure can be applied to a reproducing apparatus and the like for reproducing an optical disc recording therein a stream file of AV stream of main video in a video format different in bit rate or color gamut, a BDJO file, a file of BD-J, and the like.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: March 9, 2021
    Assignee: SONY CORPORATION
    Inventors: Kouichi Uchimura, Ryohei Takahashi
  • Patent number: 10931967
    Abstract: Techniques and tools for video coding/decoding with motion resolution switching and sub-block transform coding/decoding are described. For example, a video encoder adaptively switches the resolution of motion estimation and compensation between quarter-pixel and half-pixel resolutions; a corresponding video decoder adaptively switches the resolution of motion compensation between quarter-pixel and half-pixel resolutions. For sub-block transform sizes, for example, a video encoder adaptively switches between 8×8, 8×4, and 4×8 DCTs when encoding 8×8 prediction residual blocks; a corresponding video decoder switches between 8×8, 8×4, and 4×8 inverse DCTs during decoding.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: February 23, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Pohsiang Hsu, Chih-Lung Lin, Ming-Chieh Lee, Thomas W. Holcomb, Sridhar Srinivasan
  • Patent number: 10931968
    Abstract: A method, apparatus and computer program product are provided in order to create and/or decode video content of a scene that includes regions having looping video of different loop lengths with the video content of the scene being configured to be repeatedly looped, such as in the form of a cinemagraph, without any temporal discontinuity. In the context of a method, the video content of a scene is encoded. The video content includes at least two regions having looping videos of different loop lengths. The method also includes constructing metadata in association with the video content. The metadata comprises information identifying a location of each region within the scene. The metadata further comprises a loop length for each of the at least two regions. The method further includes causing provision of the video content as encoded and the metadata.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: February 23, 2021
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Timo Juhani Ahonen, Daniel Andre Vaquero, Miska Matias Hannuksela
  • Patent number: 10911771
    Abstract: A moving picture coding method includes: coding a coding target block using a motion vector; generating motion vector predictors; and coding the motion vector using one of the motion vector predictors generated in the generating of the motion vector predictors. In the generating of the motion vector predictors, a replacement vector which replaces a temporal motion vector predictor is added to the motion vector predictors when it is impossible to obtain the temporal motion vector predictor from a block which is included in a coded picture different from the coding target picture and corresponds to the coding target block.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: February 2, 2021
    Assignee: SUN PATENT TRUST
    Inventors: Toshiyasu Sugio, Takahiro Nishi, Youji Shibahara, Hisao Sasai
  • Patent number: 10893289
    Abstract: An image decoding method performed by means of a decoding device according to the present disclosure comprises the steps of: configuring an affine merge candidate list with respect to a current block; deriving CPMVs with respect to CPs of the current block on the basis of the affine merge candidate list; deriving prediction samples with respect to the current block on the basis of the CPMVs; and generating a reconstructed picture with respect to the current block on the basis of the derived prediction samples, wherein the maximum number of inherited affine candidates is two, a first inherited affine candidate is derived on the basis of a left block group of the current block, and a second inherited affine candidate is derived on the basis of an upper block group of the current block.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: January 12, 2021
    Assignee: LG ELECTRONICS INC.
    Inventor: Jaeho Lee
  • Patent number: 10887618
    Abstract: The present invention provides a video picture coding method, a video picture decoding method, a coding device, and a decoding device. The method includes: determining a motion vector difference of an affine picture block; determining motion vector precision of the affine picture block; determining a size of an affine motion compensation picture subblock in the affine picture block according to the motion vector difference, the motion vector precision, and a distance between control points in the affine picture block, where the control points are pixels used to determine the motion vector difference; and performing coding processing on the affine picture block according to the size of the affine motion compensation picture subblock. In this way, a picture subblock of an appropriate size is selected, so that coding complexity can be reduced, and coding efficiency can be improved.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: January 5, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hong Zhang, Haitao Yang
  • Patent number: 10880555
    Abstract: A transmission-side information processing apparatus includes, an updated region determination circuit that determines an inside of a frame to be determined as a moving image region and a still image region, a moving image encoding circuit that encodes the frame of the image by a moving image encoding scheme to generate a moving image stream when there is the moving image region in the frame to be determined, a still image encoding circuit that encodes a region switched from the moving image region to the still image region to generate a still image stream when there is the region switched from the moving image region to the still image region in the frame to be determined, and a transmission circuit that transmits region information indicating the moving image region and the still image region, the moving image stream and the still image stream to a reception-side information processing apparatus.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: December 29, 2020
    Assignee: FUJITSU LIMITED
    Inventor: Kohji Yamada