Intra/inter Selection Patents (Class 375/240.13)
  • Patent number: 11153573
    Abstract: A method of decoding JVET video that includes receiving a bitstream indicating how a coding tree unit was partitioned into coding units, and parsing said bitstream to generate at least one predictor based on an intra prediction mode signaled in the bitstream, the intra prediction mode selected from a plurality of intra prediction modes for calculating a prediction pixel P[x,y] at coordinate x,y for the coding unit. A number of intra prediction modes available for coding the coding unit are reduced by replacing two or more non-weighted intra prediction modes by a weighted intra prediction mode.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: October 19, 2021
    Assignee: ARRIS Enterprises LLC
    Inventors: Yue Yu, Limin Wang, Krit Panusopone
  • Patent number: 11140384
    Abstract: Disclosed is a video signal processing method and device for encoding or decoding a video signal.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: October 5, 2021
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., HUMAX CO., LTD.
    Inventors: Geonjung Ko, Juhyung Son, Dongcheol Kim, Jaehong Jung, Jinsam Kwak
  • Patent number: 11134255
    Abstract: A scalable video decoder is described which is configured to reconstruct a base layer signal from a coded data stream to obtain a reconstructed base layer signal; and reconstruct an enhancement layer signal including spatially or temporally predicting a portion of an enhancement layer signal, currently to be reconstructed, from an already reconstructed portion of the enhancement layer signal to obtain an enhancement layer internal prediction signal; forming, at the portion currently to be reconstructed, a weighted average of an inter-layer prediction signal obtained from the reconstructed base layer signal, and the enhancement layer internal prediction signal to obtain an enhancement layer prediction signal such that a weighting between the inter-layer prediction signal and the enhancement layer internal prediction signal varies over different spatial frequency components; and predictively reconstructing the enhancement layer signal using the enhancement layer prediction signal.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: September 28, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Tobias Hinz, Haricharan Lakshman, Jan Stegemann, Philipp Helle, Mischa Siekmann, Karsten Suehring, Detlev Marpe, Heiko Schwarz, Christian Bartnik, Ali Atef Ibrahim Khairat Abdelhamid, Heiner Kirchhoffer, Thomas Wiegand
  • Patent number: 11128871
    Abstract: An encoder encodes a video, and includes: circuitry; and memory coupled to the circuitry. Using the memory, the circuitry: obtains at least two items of prediction information for a first partition included in the video; derives at least one template from neighboring samples which neighbor the first partition; calculates at least two costs, using the at least one template and the at least two items of prediction information; using the at least two costs, (i) determines at least one splitting direction for the first partition or (ii) assigns one of the at least two items of prediction information to a second partition split from the first partition according to the splitting direction, and another thereof to a third partition split from the first partition according to the splitting direction; and encodes the first partition according to the splitting direction and the at least two items of prediction information.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: September 21, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Kiyofumi Abe, Takahiro Nishi, Tadamasa Toma, Ryuichi Kanoh, Chong Soon Lim, Ru Ling Liao, Hai Wei Sun, Sughosh Pavan Shashidhar, Han Boon Teo, Jing Ya Li
  • Patent number: 11128861
    Abstract: The present invention relates to an intra prediction method and apparatus. The image decoding method according to the present invention may comprise decoding information on intra prediction; and generating a prediction block by performing intra prediction for a current block based on the information on intra prediction. The information on intra prediction may include information on an intra prediction mode, and the intra prediction mode may include a curved intra prediction mode.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: September 21, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyun Suk Ko, Jin Ho Lee, Sung Chang Lim, Jung Won Kang, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Patent number: 11102507
    Abstract: A method for encoding video data is provided that includes determining whether or not a parent coding unit of a coding unit of the video data was predicted in intra-prediction block copy (IntraBC) mode and, when it is determined that the parent coding unit was not predicted in IntraBC mode: computing activity of the coding unit, determining an IntraBC coding cost of the coding unit by computing the IntraBC coding cost of the coding unit using a two dimensional (2D) search when the activity of the coding unit is not than an activity threshold, and computing the IntraBC coding cost of the coding unit using a one dimensional (1D) search when the activity of the coding unit is less than the activity threshold, using the IntraBC coding cost to select an encoding mode from one of a plurality of encoding modes, encoding the coding unit using the selected encoding mode.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: August 24, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Do-Kyoung Kwon, Madhukar Budagavi
  • Patent number: 11102511
    Abstract: A method for intra prediction comprises determining a first MPM candidate corresponding to a left-side candidate block on the basis of a position of the left-side candidate block adjacent to a left side of a current block; determining a second MPM candidate corresponding to an upper-end candidate block on the basis of a position of the upper-end candidate block adjacent to an upper end of the current block; generating an MPM candidate list including a plurality of MPM candidates, on the basis of the first MPM candidate and the second MPM candidate; and determining one MPM candidate of the plurality of the MPM candidates that constitute the MPM candidate list as an intra prediction mode of the current block, and performing intra prediction for the current block on the basis of the determined intra prediction mode to generate a prediction block corresponding to the current block.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: August 24, 2021
    Assignee: LG Electionics Inc.
    Inventors: Jaehyun Lim, Seungwook Park, Yongjoon Jeon, Jungsun Kim, Hendry Hendry, Byeongmoon Jeon, Joonyoung Park, Chulkeun Kim, Naeri Park
  • Patent number: 11095917
    Abstract: The present disclosure relate to affine inheritance method in intra block copy mode. A method for video processing is provided, including: in a process of acquiring motion information of a current video block, during a conversion between the current video block and a bitstream representation of the current video block, wherein the motion information of the current video block is based on at least one affine model of at least one neighboring block of the current video block, determining whether a neighboring block of the current video block uses an Intra-Block Copy (IBC) mode in which at least one reference picture used by the neighboring video block is identical to a picture in which the neighboring block is located; disabling, for the current video block, to derive an affine candidate from the neighboring block based on determining that the neighbouring block uses the IBC mode; and performing the conversion based on the motion information of the current video block.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: August 17, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11089336
    Abstract: The present invention provides an improved video encoding and decoding method, which maintains the advantages of LCU-based filter parameter signaling as compared to frame-based filter parameter signaling, but considerably reduces signaling overhead. Therefore, signaling syntax is modified by grouping LCUs (Largest Coding Units) together for signaling employing a mapping function. Consequently, filter parameters no longer need to be signaled for each single LCU, but for a group of several LCUs. The syntax structure of the invention avoids redundancies present in the state of the art as far as possible and thus increases the information content of the syntax elements. At the decoder side, the mapping function is applied to infer information about the filter parameters to be applied to a current LCU from information encoded in different syntax structures.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: August 10, 2021
    Assignee: Sun Patent Trust
    Inventors: Semih Esenlik, Matthias Narroschke, Steffen Kamp, Thomas Wedi
  • Patent number: 11082715
    Abstract: A video compression apparatus for compressing video data as a series of frames outputted from an imaging element that has a plurality of imaging regions for imaging a subject and for which imaging conditions can be set for the respective imaging regions, includes: a setting unit configured to set, based on a plurality of imaging conditions, a search region within a reference frame used for a processing to detect, based on a compression target region, a specific region in the reference frame; and a generation unit configured to generate, based on the processing using the search region set by the setting unit, the specific region to thereby generate a motion vector.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 3, 2021
    Assignee: NIKON CORPORATION
    Inventors: Daisaku Komiya, Naoki Sekiguchi
  • Patent number: 11082718
    Abstract: The present disclosure provides a method and device for image coding and a method and device for image decoding, and the method includes: a representative pixel set of a coding block is constructed, and information for constructing the representative pixel set is determined; predicted values of pixel samples in the coding block are constructed, a generation manner for the predicted values including: constructing the predicted values of the pixel samples according to reconstructed pixel samples in an image region outside the coding block and pixel values of the representative pixel set; and the information for constructing the representative pixel set and information for constructing the predicted values are coded and written into a video bitstream.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: August 3, 2021
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD
    Inventors: Tao Lin, Ming Li, Guoqiang Shang, Zhao Wu
  • Patent number: 11070817
    Abstract: A video encoding method is provided. A plurality of subunits is obtained by performing preset division on the current coding unit. A skip status of an intra-frame prediction mode corresponding to the current coding unit is determined according to differences between the plurality of subunits. In a case that the skip status of the intra-frame prediction mode corresponding to the current coding unit is determined to be skipped, execution of the intra-frame prediction mode for the current coding unit is skipped, and the current coding unit is encoded according to an inter-frame prediction mode.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: July 20, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Xunan Mao
  • Patent number: 11070801
    Abstract: Complexity of coding/decoding of a video is reduced. An image decoding apparatus (31) includes a CN information decoder (10) configured to hierarchically split a coding node by at least any of binary tree split and ternary tree split. The CN information decoder refers to a method of splitting an immediately higher node, which is a node one generation higher than a target node, to restrict a method of splitting the target node.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 20, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Yukinobu Yasugi, Tomoko Aono, Tomohiro Ikai
  • Patent number: 11064209
    Abstract: A system and method of content adaptive pixel intensity processing are described. The method includes receiving a predefined set of processed video data configured from the processed video data, deriving a range information associated with an original maximum value and an original minimum value for a predefined set of original video data, wherein the predefined set of processed video data is derived from the predefined set of original video data, and adaptively clipping pixel intensity of the predefined set of processed video data to a range deriving from the range information, wherein the range information is incorporated in a bitstream and represented in a form of the original maximum value and the original minimum value, prediction values associated with a reference maximum value and a reference minimum value, or a range index associated with a predefined range set.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: July 13, 2021
    Assignee: MEDIATEK INC.
    Inventors: Chih-Ming Fu, Ching-Yeh Chen, Yu-Wen Huang
  • Patent number: 11044490
    Abstract: To suppress an overhead of a flag indicating a motion compensation filter. A motion compensation filter apparatus includes a motion compensation filter unit configured to switch a filter to apply on a full sample image in a certain unit, and an MC filter parameter derivation unit configured to select a switching unit for filter switching by the motion compensation filter unit.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: June 22, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Yukinobu Yasugi, Tomohiro Ikai, Takeshi Chujoh
  • Patent number: 11044480
    Abstract: A method for encoding a block of a video using inter prediction includes selecting, during motion estimation for the block, a first sub-pixel interpolation filter for sub-pixel interpolation of fractional motion; selecting, during motion compensation, a second sub-pixel interpolation filter based on the first sub-pixel interpolation filter; and encoding, in a compressed bitstream, the second sub-pixel interpolation filter. The first sub-pixel interpolation filter is a 2-tap filter. The first sub-pixel interpolation filter includes weight tuples. Each weight tuple includes two weights and used for sub-pixel interpolation at a sub-pixel location between a first pixel and a second pixel. For at least one weight tuple of the weight tuples, the two weights are not based on a first distance between the sub-pixel location and the first pixel and a second distance between the sub-pixel location and the second pixel.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: June 22, 2021
    Assignee: GOOGLE LLC
    Inventor: Yunqing Wang
  • Patent number: 11036700
    Abstract: Methods, systems, and computer programs are presented for selecting features for a machine-learning model configured to detect anomalies in the evolution of data over time. One method includes an operation for identifying one or more key fields and value fields from the fields in a relational database. The method also includes grouping data of the value fields based on values of the one or more key fields and calculating one or more statistical values for each group of data of the value fields. The method further includes operations for monitoring an evolution of the one or more statistical values over time, and for selecting, based on the evolution of the one or more statistical values over time, features to be used by a machine-learning model to detect anomalies in content of the relational database over time. The method also includes executing the machine-learning model to detect the anomalies.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: June 15, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Shen Huang, Huan Van Hoang, Yongzheng Zhang, Chi-Yi Kuan
  • Patent number: 11032550
    Abstract: In one example, a method for video coding includes receiving input data associated with a current block in an image frame, generating an inter predictor of the current block, and generating an intra predictor of the current block based on samples of neighboring pixels and an intra prediction mode that locates the samples of neighboring pixels. The method further includes generating a final predictor of the current block by combining the inter predictor and the intra predictor according to one or more intra weight coefficients associated with the intra prediction mode, and encoding or decoding the current block based on the final predictor to output encoded video data or a decoded block. The one or more intra weight coefficients indicate one or more ratios that corresponding one or more portions of the intra predictor are combined with the inter predictor, respectively.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: June 8, 2021
    Assignee: MEDIATEK INC.
    Inventors: Jing Ye, Shan Liu, Shaw-Min Lei
  • Patent number: 11019344
    Abstract: A method for video processing is provided. The method includes determining, for a conversion between a current video block of a video that is a chroma block and a coded representation of the video, parameters of a cross-component linear model based on selected chroma samples based on positions of the chroma samples, wherein the selected chroma samples are selected from a group of neighboring chroma samples; and performing the conversion based on the determining.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: May 25, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11012338
    Abstract: Novel solutions are provided for consistent Quality of Service in cloud gaming system that adaptively and dynamically compensate for poor network conditions by moderating rendered frame rates using frame rate capping to optimize for network latency savings (or surplus). In further embodiments, the encoding/sent frame rate to the client can also be managed in addition, or as an alternative to capping the rendered frame rates. The claimed embodiments not only maintain a constant Quality of Service (QoS) for the user, but may also be employed to leverage higher-performing networks to reduce operational costs.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: May 18, 2021
    Assignee: NVIDIA Corporation
    Inventors: Tony Tamasi, Xun Wang, Franck Diard
  • Patent number: 11006115
    Abstract: A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding. The context adaptive binary arithmetic coding decodes the current syntax element using a first mode if the current syntax element is intra-coded and if selecting between a first set of probable modes and a second set of probable modes, where the first set of probable modes are more likely than the second set of probable modes. The context adaptive binary arithmetic coding decodes the current syntax element using a second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: May 11, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kiran Misra, Christopher A. Segall
  • Patent number: 11006109
    Abstract: The present invention provides an image processing method on the basis of an intra prediction mode and an apparatus therefor. Specifically, a method for processing an image on the basis of an intra prediction mode may comprise the steps of: identifying whether weighted intra prediction is allowed for a current block and whether the weight intra prediction is applied to the current block; identifying whether reference sample filtering is applied to the current block when the weighted intra prediction is not allowed for the current block or when the weighted intra prediction is not applied to the current block; and performing reference sample filtering of reference samples neighboring the current block when the reference sample filtering is applied.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: May 11, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyeongmoon Jang, Seunghwan Kim, Jaehyun Lim
  • Patent number: 10999174
    Abstract: Novel solutions are provided for consistent Quality of Service in cloud gaming system that adaptively and dynamically compensate for poor network conditions by moderating rendered frame rates using frame rate capping to optimize for network latency savings (or surplus). In further embodiments, the encoding/sent frame rate to the client can also be managed in addition, or as an alternative to capping the rendered frame rates. The claimed embodiments not only maintain a constant Quality of Service (QoS) for the user, but may also be employed to leverage higher-performing networks to reduce operational costs.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: May 4, 2021
    Assignee: NVIDIA Corporation
    Inventors: Tony Tamasi, Xun Wang, Franck Diard
  • Patent number: 10999590
    Abstract: An approach for reconstructing a current Network Abstraction Layer (NAL) unit for video decoding using at least one processor includes determining the current NAL unit to be an Intra Random Access Picture (IRAP) NAL unit; determining whether a previous NAL unit decoded immediately before the current NAL unit indicates an end of a coded video sequence (CVS); based on determining that the previous NAL unit indicates the end of the CVS, decoding the current NAL unit as one from among an Instantaneous Decoder Refresh (IDR) NAL unit or a Broken Link Access (BLA) NAL unit; and based on determining that the previous NAL unit does not indicate the end of the CVS, decoding the current NAL unit as a Clean Random Access (CRA) NAL unit, and reconstructing the decoded current NAL unit.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: May 4, 2021
    Assignee: TENCENT AMERICA LLC
    Inventors: Byeongdoo Choi, Stephan Wenger, Shan Liu
  • Patent number: 10992930
    Abstract: In one embodiment, a method selects a first reference block in a first reference frame and a second reference block in a second reference frame. The first reference block and the second reference block are used to predict a current block. The first reference block is selected as an anchor point. Then, the method searches in the second reference frame for a third reference block and determines whether the third reference block is a better reference block than the second reference block for predicting the current block.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: April 27, 2021
    Assignee: HULU, LLC
    Inventors: Wenhao Zhang, Deliang Fu, Min Gao, Juncheng Ma, Chen Liu
  • Patent number: 10986360
    Abstract: A device for video decoding may include a memory configured to store video data and a processor configured receive a bitstream including encoded video data. The processor may be configured to select a number of template matching (TM) candidates for a temporal layer or slice during the video decoding. The number of TM candidates selected are fixed prior to the video decoding, or adaptively calculated during the video decoding. The processor may be configured to generate a prediction block and residual block, based on a template matching candidate, to reconstruct the video data.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: April 20, 2021
    Assignee: Qualcomm Incorproated
    Inventors: Vijayaraghavan Thirumalai, Xiang Li, Nan Hu, Hsiao-Chiang Chuang, Marta Karczewicz
  • Patent number: 10979734
    Abstract: According to the present invention, an image encoding/decoding method comprises the steps of: performing an intra prediction on a current block so as to generate a prediction block; performing filtering on a filtering target pixel in the prediction block on the basis of the intra prediction mode of the current block so as to generate a final prediction block; and generating a reconstructed block on the basis of a reconstructed differential block corresponding to the current block and on the final prediction block. According to the present invention, image encoding/decoding efficiency can be improved.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: April 13, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Ho Lee, Hui Yong Kim, Sung Chang Lim, Jin Soo Choi, Jin Woong Kim
  • Patent number: 10958901
    Abstract: A method of decoding an encoded data stream representing at least one image subdivided into blocks. The method includes, for a current block of the image, and for each of at least two prediction modes available to predict the current block, obtaining a predictive block associated with the available mode; building a list having at least one of the available modes; for at least one mode included in the list, called a current mode, determining a distance measurement between the predictive block associated with the current mode and the other predictive blocks associated with the other available modes and obtained for the current block; modifying the list modified as a function of the determined measurement; decoding information identifying, for the current block, a prediction mode from the modified list from the encoded data stream; and rebuilding the current block from the predictive block associated with the identified prediction mode.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: March 23, 2021
    Assignee: B-COM
    Inventors: Felix Henry, Joel Jung, Charlene Mouton
  • Patent number: 10958903
    Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method of the present invention comprises decoding first information indicating whether a maximum of N intra prediction modes are used or a maximum of M intra prediction modes are used for an intra prediction for a current block, in which the M is smaller than the N, deriving an intra prediction mode of the current block, inverse-mapping the derived intra prediction mode on a corresponding intra prediction mode among the maximum N intra prediction modes when the decoded first information indicates that the maximum M intra prediction modes are used for the intra prediction for the current block, and generating an intra prediction block by performing an intra prediction for the current block, based on the inverse-mapped intra prediction mode.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: March 23, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dong San Jun, Jin Ho Lee, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Ha Hyun Lee, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Patent number: 10958904
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. For example, the processing circuitry decodes prediction information of a current block in a picture from a coded video bitstream, and determines, based on an intra block copy (IBC) prediction mode usage flag from the decoded prediction information, an IBC prediction mode that is separate from an inter prediction mode and an intra prediction mode. Further, the processing circuitry determines, a block vector that points to a reference area in the picture in response to the determination of the IBC prediction mode, and reconstructs the current block based on reference samples within the reference area in the picture.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: March 23, 2021
    Assignee: Tencent America LLC
    Inventors: Xiaozhong Xu, Shan Liu
  • Patent number: 10924744
    Abstract: The present techniques include deriving a threshold to maintain an encoding bitrate and determining a percentage of change of a current frame N based on an impact to a bitrate budget. The present techniques also include marking a reference frame N?1 as non-referenceable in response to the percentage of change being smaller than the threshold and encoding a static portion of frame N as a skip and encoding a non-static portion of frame N by referencing the reference frame N?1. Finally, the present techniques include overwriting a surface of the reference frame N with portions of the reference frame N?1 that have changed as compared to frame N.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: February 16, 2021
    Assignee: INTEL CORPORATION
    Inventors: Fangwen Fu, Jason Tanner, Satya N. Yedidi
  • Patent number: 10917639
    Abstract: Disclosed are an intra-prediction mode-based image processing method and a device therefor. Particularly, a method for processing an image on the basis of an intra-prediction mode may comprise the steps of: configuring a reference sample to be used for prediction of a current block on the basis of width information and height information of the current block when the current block is a non-square block; deriving an intra-prediction mode of the current block; and generating a prediction sample of the current block by using the reference sample on the basis of the intra-prediction mode of the current block.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: February 9, 2021
    Assignee: LG Electronics Inc.
    Inventors: Hyeongmoon Jang, Junghak Nam, Jaehyun Lim, Jin Heo
  • Patent number: 10912117
    Abstract: Provided are a method and an apparatus for competition-based transmitting of uplink data in a wireless communication system to which a non-orthogonal multiple access scheme is applied. Particularly, a terminal receives, from a base station, information relating to a predefined codeword for non-orthogonal multiple access. The predefined codeword includes a first spreading code and a second spreading code. The terminal configures a base layer using the first spreading code and configures an enhancement layer using the second spreading code. The terminal transmits a terminal identifier and data to the base station through a competition-based resource which overlappingly uses the base layer and the enhancement layer, wherein the terminal identifier is transmitted through the base layer and the data is transmitted through the enhancement layer.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 2, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Hojae Lee, Kijun Kim, Byounghoon Kim, Sangrim Lee
  • Patent number: 10904565
    Abstract: A device for decoding video data is configured to perform interpolation filtering using an N-tap filter to generate an interpolated search space for a first block of video data; obtain a first predictive block in the interpolated search space; determine that a second block of video data is encoded using a bi-directional inter prediction mode and a bi-directional optical flow (BIO) process; perform an inter prediction process for the second block of video data using the bi-directional inter prediction mode to determine a second predictive block; perform the BIO process on the second predictive block to determine a BIO-refined version of the second predictive block, wherein a number of reference samples used for calculating intermediate values for BIO offsets is limited to a region of (W+N?1)×(H+N?1) integer samples, wherein W and H correspond to a width and height of the second block in integer samples.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: January 26, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Hsiao-Chiang Chuang, Jianle Chen, Kai Zhang, Xiang Li, Marta Karczewicz, Yi-Wen Chen, Wei-Jung Chien
  • Patent number: 10893268
    Abstract: A method is provided for coding a current image that has previously been partitioned into blocks. The method includes, for a current block that is to be coded: partitioning the current block at least once into a plurality of subblocks; and representing) the partitioning of current block in the form of a first digital information sequence. The coding method further includes predicting the partitioning of the current block relative to the partitioning of a block that has already been coded and then decoded and that is represented in the form of a second digital information sequence, by comparing the first and second sequences with each other or by comparing the corresponding partitionings with each other, and then by determining residual digital information representative of the comparison in application of a predetermined comparison criterion; and encoding the residual digital information as determined.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: January 12, 2021
    Assignee: ORANGE
    Inventors: Joel Jung, Kartik Viswanathan
  • Patent number: 10893267
    Abstract: The present invention provides an image processing method on the basis of an intra prediction mode and an apparatus therefor. Specifically, a method for processing an image on the basis of an intra prediction mode may comprise the steps of: inducing a prediction mode applied to an intra prediction of a current block; determining whether a bi-directional intra prediction using reference samples located at both boundaries of the current block with respect to a prediction direction of the prediction mode is applied to the current block; and generating a prediction sample by using a reference sample neighboring the current block on the basis of the prediction mode, wherein when the bi-directional intra prediction is applied, boundary filtering for the current block is skipped.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: January 12, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyeongmoon Jang, Jaehyun Lim
  • Patent number: 10887587
    Abstract: A current video coding block of a frame of a video signal is intra predicted. The current video coding block comprises a plurality of pixels and each pixel is associated with a pixel value. On the basis of a plurality of primary reference pixel values a plurality of secondary reference pixel values are generated. The plurality of primary reference pixel values are associated with a plurality of primary reference pixels located in neighboring video coding blocks of the current video coding block. Each of the secondary reference pixel values is generated on the basis of two or more of the primary reference pixel values. The pixel values of the pixels of the current video coding block are intra predicted on the basis of the plurality of primary reference pixel values and the plurality of secondary reference pixel values.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: January 5, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Alexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy
  • Patent number: 10880574
    Abstract: A method for intra prediction comprises determining a first MPM candidate corresponding to a left-side candidate block on the basis of a position of the left-side candidate block adjacent to a left side of a current block; determining a second MPM candidate corresponding to an upper-end candidate block on the basis of a position of the upper-end candidate block adjacent to an upper end of the current block; generating an MPM candidate list including a plurality of MPM candidates, on the basis of the first MPM candidate and the second MPM candidate; and determining one MPM candidate of the plurality of the MPM candidates that constitute the MPM candidate list as an intra prediction mode of the current block, and performing intra prediction for the current block on the basis of the determined intra prediction mode to generate a prediction block corresponding to the current block.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: December 29, 2020
    Assignee: LG Electronics Inc.
    Inventors: Jaehyun Lim, Seungwook Park, Yongjoon Jeon, Jungsun Kim, Hendry Hendry, Byeongmoon Jeon, Joonyoung Park, Chulkeun Kim, Naeri Park
  • Patent number: 10873757
    Abstract: A method of decoding video data in uni-directional prediction by a decoding apparatus can include deriving, by the decoding apparatus, a reference picture index and a motion vector of a current prediction unit; generating, by the decoding apparatus, a prediction block of the current prediction unit using the reference picture index and the motion vector; generating, by the decoding apparatus, a quantized block by inversely scanning quantized coefficient components; generating, by the decoding apparatus, a transformed block by inversely quantizing the quantized block using a quantization parameter; generating, by the decoding apparatus, a residual block by inversely transforming the transformed block; and generating, by the decoding apparatus, reconstructed pixels using the prediction block and the residual block, in which prediction pixels of the prediction block are generated using an interpolation filter selected based on the motion vector, the interpolation filter being a 7-tap filter if the motion vector
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: December 22, 2020
    Assignee: INFOBRIDGE PTE. LTD.
    Inventors: Soo Mi Oh, Moonock Yang
  • Patent number: 10871833
    Abstract: In one example embodiment, an information processing apparatus causes a display device to display a first image in a display range. In this embodiment, the first image is from images associated with an observation target object. The images include a first image, a second image, and a third image. In response to a request to change the display range, the information processing apparatus changes the display range at a first speed, and causes the display range to display the second image. In response to a request to terminate the change of the display range, the information processing apparatus changes the display range at a deceleration speed, and causes the display range to display the third image.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: December 22, 2020
    Assignee: Sony Corporation
    Inventors: Shigeatsu Yoshioka, Yoichi Mizutani
  • Patent number: 10869054
    Abstract: A method of decoding JVET video includes receiving a bitstream indicating how a coding tree unit was partitioned into coding units, and parsing said bitstream to generate at least one predictor based on an intra prediction mode signaled in the bitstream. The predictor may be generated by interpolating neighboring pixels for each pixel within a coding block. The computation may be more accurate by deriving a value for a bottom right neighboring pixel.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: December 15, 2020
    Assignee: ARRIS Enterprises LLC
    Inventors: Krit Panusopone, Seungwook Hong, Limin Wang
  • Patent number: 10863180
    Abstract: When removing a block distortion occurring in a local decoded image, a loop filtering part 11 of an image coding device carries out a filtering process on each of signal components (a luminance signal component and color difference signal components) after setting the intensity of a filter for removing the block distortion for each of the signal components according to a coding mode (an intra coding mode or an inter coding mode) selected by a coding controlling part 1.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 8, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi Sekiguchi, Kazuo Sugimoto, Hiroharu Sakate, Tokumichi Murakami, Akira Minezawa
  • Patent number: 10839592
    Abstract: Improved techniques for generating video content are disclosed. In some embodiments, a frame is rendered using a rendering option. It is then determined whether the frame is an independent frame (I-frame) or a predictive frame (P-frame). In the event that the frame is an I-frame, the frame is independently encoded. In the event that the frame is a P-frame, motion is estimated from a known geometry of an associated scene and motion vectors and prediction error are encoded.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: November 17, 2020
    Assignee: Outward, Inc.
    Inventors: Manu Parmar, Zhanpeng Feng, Clarence Chui
  • Patent number: 10841613
    Abstract: The present invention provides a unique intra prediction process which improves the efficiency of video coding. H.264/AVC uses reference pixels in a horizontal boundary located immediately above a target block to be predicted and reference pixels in a vertical boundary located immediately left of the target block. In the present invention, at least some of one of an array of horizontal boundary pixels and an array of vertical boundary pixels are retrieved. Then, the retrieved pixels are added to the other boundary pixels to extend the array thereof. Intra prediction is performed, based solely on the extended array of boundary pixels.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: November 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Thiow Keng Tan
  • Patent number: 10841583
    Abstract: A coding unit (CU) depth determining method includes determining a residual coefficient of a current optimal mode of a target CU, respectively obtaining coding information features of the target CU corresponding to a specific frame type and coding information features of a neighboring coding tree unit (CTU) corresponding to the specific frame type of a CTU in which the target CU is located, to form prediction feature vector samples, and inputting the prediction feature vector samples to a pre-trained predictive model corresponding to the specific frame type, to obtain a prediction result.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 17, 2020
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Hongshun Zhang, Sixin Lin, Ximing Cheng
  • Patent number: 10803483
    Abstract: A favorable merging or grouping of simply connected regions into which the array of information samples is sub-divided, is coded with a reduced amount of data. To this end, a predetermined relative locational relationship is defined enabling an identifying, for a predetermined simply connected region, of simply connected regions within the plurality of simply connected regions which have the predetermined relative locational relationship to the predetermined simply connected region. Namely, if the number is zero, a merge indicator for the predetermined simply connected region may be absent within the data stream. In other embodiments, spatial sub-division is performed depending on a first subset of syntax elements, followed by combining spatially neighboring simply connected regions depending on a second subset of syntax elements, to obtain an intermediate sub-division.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: October 13, 2020
    Assignee: GE VIDEO COMPRESSION, LLC
    Inventors: Philipp Helle, Simon Oudin, Martin Winken, Detlev Marpe, Thomas Wiegand
  • Patent number: 10798388
    Abstract: An initial value of a current depth Depth is 1, and an inter-frame mode selection method includes: S701: if calculation of a coding overhead of coding a coding unit CUDepth is to be skipped, invoking S703 to S705; and if the calculation is not to be skipped, invoking S702 to S705; S702: determining a current optimum coding mode and coding overhead of the coding unit CUDepth; S703: dividing the coding unit CUDepth into multiple coding subunits having a depth Depth+1, and recursively performing S701 to S705 until the depth of the coding subunit reaches a preset maximum depth or satisfies a division stopping condition; S704: comparing a sum of coding overheads of the multiple coding subunits with the current coding overhead of the coding unit CUDepth; and S705: determining that a mode corresponding to the smaller one in S704 is an optimum coding mode.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: October 6, 2020
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Chenchen Gu
  • Patent number: 10791340
    Abstract: A method and system to refine coding of P-phase data, includes receipt of an input P-phase data block. The P-phase data block may comprise a plurality of entropy coded bits and a plurality of un-coded bits of P-phase data values. A refinement step size is determined for the received input P-phase data block, based on a count of refinement bits available for coding of the plurality of un-coded bits and a block size of the input P-phase data block. A refinement start position is also determined for the received input P-phase data block. The plurality of un-coded bits of the P-phase data values are refined by allocation of the refinement bits in one or more bit-planes of the input P-phase data block, based on the determined refinement step size and the determined refinement start position.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: September 29, 2020
    Assignee: SONY CORPORATION
    Inventors: Masaru Ikeda, Ali Tabatabai
  • Patent number: 10791326
    Abstract: Embodiments of this application provide a video coding processing method and apparatus and a storage medium. The method includes: identifying a to-be-coded macroblock in a to-be-coded video frame; obtaining an inter-frame coding cost of the to-be-coded macroblock based on at least one inter-frame coding scheme; obtaining an intra-frame coding cost of the to-be-coded macroblock based on at least one intra-frame coding scheme; comparing the inter-frame coding cost with the intra-frame coding cost, to obtain a comparison result; determining a coding scheme of the to-be-coded macroblock based on the comparison result, the coding scheme including intra-frame predictive coding and inter-frame predictive coding; and coding the to-be-coded macroblock according to the coding scheme.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: September 29, 2020
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Xunan Mao
  • Patent number: 10778976
    Abstract: An image decoding apparatus (31) includes a CT information decoding unit (10) configured, in each coding tree, to decode a constraint flag indicating whether or not to constrain decoding a prediction unit, and a CU decoding unit (20) configured, in the coding tree, to decode a prediction unit in a coding node to be decoded first and to not decode a prediction unit in another coding node, in a case that the constraint flag indicates constraint of decoding the prediction unit. According to the present invention, it is possible to reduce a coding amount of PU and complexity of coding/decoding an image while maintaining a split with a high degree of freedom by CT split (QT split and BT split).
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: September 15, 2020
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Tomohiro Ikai, Tomoko Aono