Adaptive Patents (Class 375/240.02)
  • Patent number: 11032332
    Abstract: A service with a plurality of communication sessions may be relocated from a first server to a second server based on performance indicators associated with the communication sessions, among other things.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: June 8, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Michael Wu, Barrett Kreiner
  • Patent number: 11032561
    Abstract: A Flexible Band Offset (FBO) apparatus and method of performing Sample Adaptive Offset (SAO) filtering within encoders and decoders, such as according to the High Efficiency Video Coding (HEVC) standard, and similarly configured coding devices. The number of Band Offset (BO) modes and the number of necessary offsets is reduced. The invention beneficially provides simpler coding, reduces temporary buffer size requirements, and can yield a small performance gain over existing SAO techniques of HEVC test model HM 5.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: June 8, 2021
    Assignee: SONY CORPORATION
    Inventors: Ehsan Maani, Ali J Tabatabai, Jun Xu
  • Patent number: 11032568
    Abstract: A method of signaling of coding modes including an IntraBC mode (Intra-block copy mode) to improve the coding efficiency is disclosed. In one embodiment, the partition mode associated with IntraBC mode and the corresponding partition mode for Inter mode use the same binarization process and the same context modelling. In another embodiment, the displacement vector of IntraBC prediction for the chroma block is derived from the displacement vectors of the corresponding luma block. In yet another embodiment, a non-square PU is partitioned into multiple TUs (transform units) and IntraBC prediction is performed TU by TU.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: June 8, 2021
    Assignee: HFI INNOVATION INC.
    Inventors: Shan Liu, Xiaozhong Xu
  • Patent number: 11025908
    Abstract: An intra-prediction apparatus removes a directional intra-prediction mode from a set of predetermined directional intra-prediction modes. The intra-prediction apparatus comprises: a reference sample determining unit configured to select the directional intra-prediction mode from the set of predetermined directional intra-prediction modes, and to determine a plurality of available reference samples; a directional intra-prediction mode removing unit configured to remove the directional intra-prediction mode from the set of predetermined directional intra-prediction modes if a length (LRSlonger) associated with the plurality of available reference samples is smaller than a multiple of a length (Llonger) of a first side of the video coding block for obtaining a reduced set; and an intra-prediction unit configured to intra-predict pixel values of pixels of the rectangular video coding block on the basis of the reduced set. The intra-prediction apparatus can further comprise an area determining unit.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: June 1, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Alexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy
  • Patent number: 11025914
    Abstract: A method for video coding with global rate-distortion optimization-based rate control (RC) is provided. By using this video coding method, an RC scheme for High dynamic range (HDR) in High Efficiency Video Coding (HEVC) is provided. Briefly, considering the characteristics of HDR image content, a rate-distortion (R-D) model based on HDR-Visual Difference Predictor (VDP)-2 for performance optimization is provided. In the optimization process, the ? is directly utilized rather than the bit rate to obtain the globally optimal solution. Finally, the model parameter estimation method is used to reduce errors. The video coding method of the present invention is verified that bit rate reduction on average can be achieved.
    Type: Grant
    Filed: March 15, 2020
    Date of Patent: June 1, 2021
    Assignee: TFI Digital Media Limited
    Inventors: Yiu Fai Yuen, Mingliang Zhou, Xuekai Wei, Shiqi Wang, Sam Tak Wu Kwong, Chi Keung Fong, Hon Wah Wong
  • Patent number: 11025903
    Abstract: An example device for decoding video data includes a memory for storing video data, and one or more processors implemented in circuitry and configured to construct an intra-prediction candidate list for a current chroma block of the video data indicating candidate intra-prediction modes for the current chroma block, wherein the intra-prediction candidate list indicates a subset of allowed luminance (luma) candidate intra-prediction modes, determine cost (e.g., sum of absolute transform difference (SATD)) values for each of the candidate intra-prediction modes in the intra-prediction candidate list for the current chroma block, and generate a prediction block for the current chroma block using one of the candidate intra-prediction modes indicated by the intra-prediction candidate list according to the cost values (e.g., the candidate intra-prediction mode having the lowest cost value).
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 1, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Li Zhang, Wei-Jung Chien, Xin Zhao, Marta Karczewicz
  • Patent number: 11025925
    Abstract: Provided herein are systems and methods for encoding an unencoded video frame of a sequence of video frames using a condensed coding header format. After a frame is divided into coding blocks and the visual data encoded, the coding block header data for each coding block is combined and encoded. A flag is set in the frame's frame header indicating whether the condensed or non-condensed coding block header format is being used.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 1, 2021
    Assignee: REALNETWORKS, INC.
    Inventors: Chia-Yang Tsai, Weijia Zhu, Kai Wang
  • Patent number: 11025917
    Abstract: Aspects of the disclosure provide method and apparatus for video coding. In some examples, an apparatus includes processing circuitry for video decoding. The processing circuitry calculates cost function values for refined block vector positions. The refined bock vector positions are determined based on a position of a block vector predictor for a block vector of a current block in a picture. The processing circuitry determines a refined block vector predictor for the block vector of the current block based on the refined block vector position that has a smallest cost function value among the cost function values. Further, the processing circuitry reconstructs at least one sample of the current block based on the refined block vector predictor.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: June 1, 2021
    Assignee: Tencent America LLC
    Inventors: Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 11025921
    Abstract: Streaming image data includes receiving a request for a video stream of a scene of a live event, generate a background portion of the scene, obtaining a model of an object in the scene, transmitting the background portion and the model of the object, generating a serialized data stream indicating a modification of the object from the model, and transmitting the serialized data stream for the object.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: June 1, 2021
    Assignee: Apple Inc.
    Inventor: Geoffrey Stahl
  • Patent number: 11025941
    Abstract: Methods are provided for inter-prediction candidate index coding independent of the construction of the corresponding inter-prediction candidate list, i.e., a merging candidate list or an advanced motion vector predictor list. A maximum allowed number of inter-prediction candidates for an inter-prediction candidate list is used for encoding the inter-prediction candidate index in an encoded bit stream. The maximum allowed number may be pre-determined or may be selected by the encoder and encoded in the bit stream. A decoder may then decode the index using the maximum allowed number of inter-prediction candidates independent of the construction of the corresponding inter-prediction candidate list.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: June 1, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Minhua Zhou
  • Patent number: 11019359
    Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. An apparatus for video decoding includes processing circuitry that decodes prediction information for a current block in a current picture. The prediction information indicates that a chroma coding block included in the current block is coded in an intra block copy mode and has a plurality of sub-blocks. The processing circuitry determines whether a first deblocking filter is to be applied to the plurality of sub-blocks of the chroma coding block. When the first deblocking filter is determined to be applied to the plurality of sub-blocks of the chroma coding block, the processing circuitry applies the first deblocking filter to samples adjacent to a boundary of a combined sub-block including a subset of the plurality of sub-blocks, and then reconstructs the current block based on the samples to which the first deblocking filter is applied.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: May 25, 2021
    Assignee: Tencent America LLC
    Inventors: Xiaozhong Xu, Shan Liu, Xiang Li
  • Patent number: 11019357
    Abstract: A video coder is configured to perform motion vector prediction to predict a motion vector for a block of video data. The motion vector prediction may use a motion vector predictor list that includes both adjacent and non-adjacent candidates relative to the current block. The video coder may divide spatial motion vector prediction candidates for a current block of video data into groups, add the spatial motion vector prediction candidates to a motion vector predictor list based on the groups, and decode a motion vector for the current block of video data based on the motion vector predictor list.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: May 25, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Yu Han, Wei-Jung Chien, Han Huang, Marta Karczewicz
  • Patent number: 11017712
    Abstract: In one example, a head mounted display system includes detecting a position of a head of a user of the head mounted display, predicting a position of the head of the user of the head mounted display at a time after a time that the position of the head of the user was detected, and rendering image data based on the predicted head position.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: May 25, 2021
    Assignee: Intel Corporation
    Inventors: Atsuo Kuwahara, Deepak S. Vembar, Paul S. Diefenbaugh, Vallabhajosyula S. Somayazulu, Kofi C. Whitney
  • Patent number: 11019332
    Abstract: A video coder selects a set of wide-angle intra prediction directions based on a size of a luma block of a picture having a YUV 4:2:2 chroma sampling format. Additionally, the video coder determines an intra prediction direction for the luma block. The intra prediction direction for the luma block is in the set of wide-angle intra prediction directions. The video coder also determines an intra prediction direction for a chroma block. The luma block is collocated in the picture with the chroma block. The chroma block has a different width/height ratio than the luma block. The intra prediction direction for the chroma block is guaranteed to have the intra prediction direction for the luma block. The video coder uses the intra prediction directions for the luma and chroma blocks to generate prediction blocks for the luma and chroma blocks, respectively.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: May 25, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Hongtao Wang, Han Huang, Yu Han, Geert Van der Auwera, Wei-Jung Chien, Marta Karczewicz
  • Patent number: 11019360
    Abstract: In some examples, a device includes a memory configured to store a current block of the video data and one or more processors coupled to the memory. The one or more processors may be configured to derive a reference sample position (RSP) for a current sample of a current block according to one or more RSP derivation models. The one or more RSP derivation models may include a circular model, an elliptical model, a piece-wise linear model, a table-based model, or a parametric model. The one or more processors may be further configured to determine a reference sample value for a reference sample at the RSP, determine a predicted value for the current sample using the reference sample value, and code the current sample using the predicted value.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: May 25, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Adarsh Krishnan Ramasubramonian, Geert Van der Auwera, Luong Pham Van, Marta Karczewicz
  • Patent number: 11010855
    Abstract: An encoding apparatus partitions a digital image into multiple regions for subsequent encoding. A first encryption code is associated with a first region, a second encryption code is associated with a second region and the first code, and a third code is associated with the first code, the second code and a third region. An authentication apparatus authenticates the digital image in an inverse process.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: May 18, 2021
    Assignee: SIGNS & WONDERS UNLIMITED, LLC
    Inventors: Nancy Powers, Terrence M. Fortuna, Paul Kocsis
  • Patent number: 11012479
    Abstract: Methods for capturing and broadcasting a user computer session may involve running the session on a host computer equipped with a graphics processing unit to prepare session display data. The capturing and broadcasting method implements the operations of repeatedly providing the display data prepared by the graphics processing unit to a first encoder and a second encoder to establish a primary video stream and a secondary video stream; then transmitting the primary video stream to the remote client associated with the computer session and transmitting the secondary video stream to a subscriber client.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: May 18, 2021
    Assignee: BLADE
    Inventors: Yann Dirson, Grégory Gelly
  • Patent number: 11012489
    Abstract: A picture file processing method is provided. The method includes determining, by a computing device, during a process of encoding transparency data of a picture, transparency input values according to the transparency data of the picture. The method also includes encoding, by the computing device using a video encoder, the transparency input values as data of a preset target channel of the video encoder, to obtain transparency stream data of the picture; and encoding color data of the picture, to obtain color stream data of the picture. The method also includes outputting, by the computing device, compressed image data of the picture. The compressed image data includes the transparency stream data of the picture and the color stream data of the picture.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: May 18, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Xiaozheng Huang
  • Patent number: 11006106
    Abstract: Devices, systems and methods for digital video coding, which include adaptive control point selection for affine coding, are described. An exemplary method for video processing includes selecting, for a conversion between a current block of a video and a bitstream representation of the video, a plurality of control points for the current block, the plurality of control points comprising at least one non-corner point of the current block, and each of the plurality of control points being representative of an affine motion of the current block; and performing, based on the plurality of control points, the conversion between the current block and the bitstream representation.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: May 11, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Yue Wang
  • Patent number: 10999575
    Abstract: A mode signaling syntax element is provided based on an encoded representation of a picture in a video sequence. The mode signaling syntax element is employed to determine whether a final reference picture list is the same for all slices of a same slice type in the picture. The mode signaling syntax element signals to a decoder that it does not necessarily have to repeat computationally complex reference picture list construction functions for each slice in the picture.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 4, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Rickard Sjöberg, Jonatan Samuelsson, Per Wennersten
  • Patent number: 10999580
    Abstract: The present invention relates to an entropy decoding method which includes: generating context related to a bin that forms a codeword of a syntax element; and performing arithmetic decoding of the bin based on the context.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: May 4, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaehyun Lim, Byeongmoon Jeon, Yongjoon Jeon, Seungwook Park, Jungsun Kim, Joonyoung Park, Hendry Hendry, Naeri Park, Chulkeun Kim
  • Patent number: 10999630
    Abstract: Techniques described herein include evaluation and management of device hardware, software, and network resources during streaming, downloading, or playback of video resources on client devices from remote locations. Certain aspects relate to evaluating the current resources available at a client device, such as memory, processing capacity, device battery status, network availability and/or network data quotas, in view of a video resource request. Based on the evaluation of the client device's resources, and estimations of the effects that video streaming/downloading and playback may have on the client device's resources, the client device may control, customize, and/or alter the retrieval or playback of requested video resources.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 4, 2021
    Assignee: DISH Network L.L.C.
    Inventors: Jesse Montgomery, Donald Dudrey
  • Patent number: 10992961
    Abstract: An example method includes processing a file including fisheye video data, the file including a syntax structure including a plurality of syntax elements that specify attributes of the fisheye video data, wherein the plurality of syntax elements includes: a first syntax element that explicitly indicates whether the fisheye video data is monoscopic or stereoscopic, and one or more syntax elements that implicitly indicate whether the fisheye video data is monoscopic or stereoscopic; determining, based on the first syntax element, whether the fisheye video data is monoscopic or stereoscopic; and rendering, based on the determination, the fisheye video data as monoscopic or stereoscopic.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: April 27, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Ye-Kui Wang, Ning Bi, Bijan Forutanpour
  • Patent number: 10992933
    Abstract: Provided is a video decoding method including obtaining a bitstream including residual data about a residual block of a current block, determining a plurality of prediction directions with respect to the current block, determining a plurality of reference samples included in a neighboring region of the current block in a current image, by using the plurality of prediction directions that are determined, generating a prediction block of the current block by using the plurality of reference samples, obtaining a residual block of the current block based on the residual data about the residual block of the current block, and reconstructing the current block by using the prediction block of the current block and the residual block of the current block.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: April 27, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: In-kwon Choi, Min-woo Park, Bo-ra Jin
  • Patent number: 10986358
    Abstract: A method for decoding a video according to the present invention may comprise: decoding information indicating whether illumination compensation is performed for a current block, determining an illumination compensation parameter of the current block when the information indicates that the illumination compensation is performed for the current block, obtaining a prediction block by performing inter prediction for the current block, and performing the illumination compensation on the current block using the illumination compensation parameter.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: April 20, 2021
    Assignee: KT CORPORATION
    Inventor: Bae Keun Lee
  • Patent number: 10986340
    Abstract: An example device for decoding video data includes a memory configured to store video data; and a processor implemented in circuitry and configured to decode a truncated unary codeword representing a multiple transform (MT) scheme for a current block of the video data to determine the MT scheme; apply the MT scheme to transform coefficients of the current block to produce residual data for the current block of video data; and decode the current block using the residual data. The MT scheme may include a plurality of transforms, such as a horizontal transform and a vertical transform, a primary transform and a second transform, or any combination of separable and/or non-separable transforms. Thus, a single truncated unary codeword may represent the entire MT scheme, that is, each of a plurality of transforms of the MT scheme.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: April 20, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Hilmi Enes Egilmez, Yung-Hsuan Chao, Amir Said, Vadim Seregin, Marta Karczewicz, Wei-Jung Chien
  • Patent number: 10986333
    Abstract: According to exemplary embodiments of the present invention, references to a motion vector in a neighboring block of an enhancement layer or in a block of a previously coded picture, and a motion vector of a base layer are equally handled. Accordingly, a motion_prediction_flag with identification information can be integrated for further improved coding efficiency.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 20, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Mitsuru Maeda
  • Patent number: 10979747
    Abstract: A statistical multiplexer (statmux) system for encoding multiple channels of digital television data is provided with improved algorithms for determining bitrate for encoding and decoding to account for signal complexity. The variable bit rate (VBR) encoders and encoding are provided in a statmux system by employing a CBR (constant bit rate) adapter. A CBR adapter can provide correcting state updates on a per-frame basis to a CBR encoder element, thereby enabling VBR capability.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 13, 2021
    Assignee: ARRIS Enterprises LLC
    Inventor: Brenda Van Veldhuisen
  • Patent number: 10979725
    Abstract: A method and apparatus for decoding JVET video, including receiving a bitstream and generating predictor pixels for angular prediction using pixels at projected positions along both a top reference row (main reference line) and a left reference column (side reference line). By combining projected pixel values on the main reference line with projected pixel values on the side reference, a predictor pixel at coordinate (x,y) can be determined. Further weighting the values according to a distance between predictor pixels and projected pixel positions on the main and side references may be included in the combination of pixel values. The weight parameter may be determined from a weighting table. Further, the weights for horizontal and vertical predictors may be computed based on that of a horizontal and vertical predictor, whichever is more accurate.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: April 13, 2021
    Assignee: ARRIS Enterprises, LLC
    Inventors: Krit Panusopone, Seungwook Hong, Yue Yu, Limin Wang
  • Patent number: 10972758
    Abstract: Embodiments include methods and apparatuses for decoding video data including receiving an encoded video bitstream that forms a representation of a coded picture of the video data and determining a partitioning of the coded picture of the video data into a plurality of coded unit. The partitioning may be according to a first tree structure and the plurality of coded units including a leaf node in the first tree structure. A method may further include determining that a residual block of the leaf node is recursively split into a plurality transform units according to a second tree structure.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: April 6, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Marta Karczewicz, Vadim Seregin, Nan Hu, Wei-Jung Chien
  • Patent number: 10958939
    Abstract: An image decoding method performed by a decoding apparatus according to the present disclosure includes receiving a bitstream including residual information; deriving quantized transform coefficients for a current block based on the residual information included in the bitstream; deriving residual samples for the current block based on the quantized transform coefficients; and generating a reconstructed picture based on the residual samples for the current block.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: March 23, 2021
    Assignee: LG ELECTRONICS, INC.
    Inventors: Jungah Choi, Sunmi Yoo, Jin Heo, Ling Li, Jangwon Choi, Seunghwan Kim
  • Patent number: 10958912
    Abstract: Provided is a bit rate control methods includes determining an input bit count for a rate quantization model according to a target bit rate setting; and providing a quantization parameter value determined through the rate quantization model to an encoder unit based on the input bit count. The rate quantization model is updated according to a prediction bit count information predicted from a BIN count information of a current or delay frame encoded in an encoder unit and the delay bit count information of the delay frame obtained from an offline context-adaptive binary arithmetic coding CABAC module.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: March 23, 2021
    Assignee: CHIPS & MEDIA, INC
    Inventor: Dong Jin Park
  • Patent number: 10959084
    Abstract: A wireless communication system according to an embodiment comprises a first wireless communication device and a second wireless communication device. The first wireless communication device is configured to transmit a signal related to program. The second wireless communication device is configured to compute an angle of departure from the first wireless communication device based on a radio wave transmitted from the first wireless communication device, and to perform updating of the program when a computed angle of departure is a predetermined angle.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: March 23, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventor: Makoto Yamashita
  • Patent number: 10958905
    Abstract: An information processing apparatus includes: a memory; and a processor coupled to the memory and configured to: down-convert a moving image in units of structure of pictures (SOPs) divided in a time direction and precedingly execute encoding processing; calculate a target code amount of each processing unit included in the moving image in units of SOPs based on a result of the preceding encoding processing and calculate a temporal buffer position in a case where the encoding processing is executed on each processing unit based on the calculated target code amount; and calculate an error between an actual transmission buffer position and a temporal buffer position each time when the encoding processing is executed on each processing unit in the moving image in units of SOPs and correct a target code amount of each processing unit on which the encoding processing has not been executed yet.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: March 23, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Xuying Lei, Hidenobu Miyoshi, Shunsuke Kobayashi, Kazuhiro Yamashita
  • Patent number: 10958918
    Abstract: The present invention relates to a decoding method for a bit stream that supports a plurality of layers. The decoding method may include receiving information on a set of video parameters that includes information on the plurality of layers, and parsing the set of video parameters to grasp information on the layers in the bit stream.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: March 23, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung Won Kang, Ha Hyun Lee, Jin Soo Choi, Jin Woong Kim
  • Patent number: 10944989
    Abstract: A method and apparatus for Intra prediction of non-square chroma blocks are disclosed. The system uses a block partitioning structure for partitioning a chroma block into one or more final sub-blocks including at least one non-square final sub-block using block partition recursively. The block partition either splits each given block into intermediate sub-blocks using one or more split modes including one binary split mode or applies no splitting to each given block. The block is treated as an initial given block and each intermediate sub-block is treated as one given block in a next recursion. Any given block that is not further split becomes a final sub-block. After the final sub-blocks are determined, non-square Intra prediction is applied to each non-square final sub-block.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: March 9, 2021
    Assignee: MEDIATEK INC.
    Inventors: Yi-Wen Chen, Jicheng An, Jian-Liang Lin, Yu-Wen Huang
  • Patent number: 10944983
    Abstract: A method and apparatus for motion information coding not only uses the Merge index to indicate the selected Merge candidate, but also refines partial motion information of the selected Merge candidate. An encoder derives a Merge candidate set based on the motion information associated with neighboring blocks. The encoder selects a target Merge candidate from the Merge candidate set and signal a Merge index corresponding to the target Merge candidate. The encoder then predicts a part of the current motion information based on partial motion information associated with the target Merge candidate to generate coded motion information.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: March 9, 2021
    Assignee: MEDIATEK INC.
    Inventors: Ching-Yeh Chen, Tzu-Der Chuang, Yu-Wen Huang
  • Patent number: 10944978
    Abstract: Video encoders and decoders and video encoding and decoding methods are provided. A video encoder includes an input buffer configured to receive a video data stream and to supply current frame data, a frame buffer configured to store reconstructed frame data, and an encoder circuit configured to read reference frame data from the frame buffer, to encode the current frame data received from the input buffer using the reference frame data and to write the reconstructed frame data to the frame buffer. The encoder circuit may be configured to write the reconstructed frame data by overwriting the reference frame data in the frame buffer.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: March 9, 2021
    Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Sumit Johar, Surinder Pal Singh
  • Patent number: 10944968
    Abstract: The present invention relates to an image information encoding and decoding method and a device for same. One embodiment of an image information encoding method according to the present invention, as an image information encoding method according to another embodiment of the present invention, includes the steps of: generating a restore block; applying a deblocking filter on the restore block; applying a Sample Adaptive Offset (SAO) on the restore block having the deblocking filter applied thereon; and transmitting information on the SAO application. During the applying of the SAO, the SAO is applied to chroma pixels, and during the transmitting of the information, in addition to information on whether the SAO is applied on the chroma pixels, at least one of area information, division information on the SAO coverage area, SAO type information, and SAO offset information is transmitted.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: March 9, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Seung Wook Park, Jae Hyun Lim, Jung Sun Kim, Joon Young Park, Young Hee Choi, Byeong Moon Jeon, Yong Joon Jeon
  • Patent number: 10944966
    Abstract: The invention relates to method for determining predictor blocks of a first resolution layer image from blocks of a second resolution layer image of a spatially scalable video codec, wherein a resolution of the first resolution layer image is higher than a resolution of the second resolution layer image, the method comprising: up-scaling each block of the second resolution layer image to a corresponding block of an up-scaled second resolution layer image; and filtering each block of the up-scaled second resolution layer image by a sharpening filter to obtain a predictor block of the first resolution layer image.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: March 9, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Maxim Sychev
  • Patent number: 10939135
    Abstract: Disclosed herein are a method and apparatus for filtering a reference pixel. A method of smoothing a reference pixel may include determining whether or not to perform smoothing on a reference pixel based on the size of a transform block and information about an intra-prediction mode for the transform block and determining a smoothing method by comparing the size of the transform block with the size of a maximum transform block. Accordingly, image coding efficiency can be increased, and picture quality can be improved.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: March 2, 2021
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Byeung Woo Jeon, Ho Young Lee, Kwang Hyun Won
  • Patent number: 10931970
    Abstract: Disclosed herein are a method and apparatus for filtering a reference pixel. A method of smoothing a reference pixel may include determining whether or not to perform smoothing on a reference pixel based on the size of a transform block and information about an intra-prediction mode for the transform block and determining a smoothing method by comparing the size of the transform block with the size of a maximum transform block. Accordingly, image coding efficiency can be increased, and picture quality can be improved.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: February 23, 2021
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Byeung Woo Jeon, Ho Young Lee, Kwang Hyun Won
  • Patent number: 10931943
    Abstract: A video decoding method according to this document includes deriving a first candidate intra prediction mode based on a first neighboring block located on a left side of a current block, deriving a second candidate intra prediction mode based on a second neighboring block located on an upper side of the current block, constructing a most probable mode (MPM) list for the current block based on the first candidate intra prediction mode and the second candidate intra prediction mode, deriving an intra prediction mode for the current block based on the MPM list, generating predicted samples by performing prediction for the current block based on the intra prediction mode, and generating a reconstructed picture for the current block based on the predicted samples.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: February 23, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Ling Li, Jin Heo, Seunghwan Kim
  • Patent number: 10931953
    Abstract: This application relates to a video coding processing method performed at a computing device, and an application having a video coding function. The method includes: obtaining a coding state parameter and load information of a terminal in a current processing cycle, and a first coding parameter of a first coder used in the current processing cycle; determining a second coding parameter according to the coding state parameter and the load information of the terminal; and in accordance with a determination that the second coding parameter and the first coding parameter are different, adjusting the first coder according to the second coding parameter and/or configuring a second coder according to the second coding parameter, to code frame data in a next processing cycle.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: February 23, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Yongfang Shi
  • Patent number: 10924736
    Abstract: Embodiments of the disclosure provide a method and apparatus for processing video signals. An image signal decoding method according to an embodiment of the disclosure comprises the steps of: determining, on the basis of the height and width of a current block, an input length and output length of a non-separable transform; determining a non-separable transform matrix corresponding to the input length and output length of the non-separable transform; and applying the non-separable transform matrix to the current block, wherein, when the height and width of the current block are 4 each, the input length and output length of the non-separable transform are determined to be 8 and 16 respectively.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: February 16, 2021
    Assignee: LG ELECTRONICS, INC.
    Inventors: Moonmo Koo, Mehdi Salehifar, Seunghwan Kim, Jaehyun Lim
  • Patent number: 10924767
    Abstract: The present invention relates to a method for encoding and decoding image information and to an apparatus using same, and the method for encoding the image information, according to the present invention, comprises the steps of: generating a recovery block; applying a deblocking filter to the recovery block; applying a sample adaptive offset (SAO) to the recovery block to which the deblocking filter is applied; and transmitting the image information including information on the SAO which is applied, wherein in the step of transmitting, information for specifying bands that cover a scope of a pixel value, to which a band off set is applied, is transmitted when the band offset is applied during the step of applying the SAO.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: February 16, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Seungwook Park, Jungsun Kim, Yongjoon Jeon, Joonyoung Park, Byeongmoon Jeon, Jaehyun Lim
  • Patent number: 10924758
    Abstract: A method for determining a motion vector includes: determining at least one inter-layer reference block by referring to an inter-layer corresponding block of a current processing block; determining the motion vector(s) of the current processing block according to the motion vector(s) of the determined at least one inter-layer reference block as well as the motion vectors of the other adjacent blocks of the current processing block.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: February 16, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Zhang, Jie Chen, Yue Wu
  • Patent number: 10924732
    Abstract: A method for luma-based chroma intra-prediction in a video encoder or a video decoder is provided that includes down sampling a first reconstructed luma block of a largest coding unit (LCU), computing parameters ? and ? of a linear model using immediate top neighboring reconstructed luma samples and left neighboring reconstructed luma samples of the first reconstructed luma block and reconstructed neighboring chroma samples of a chroma block corresponding to the first reconstructed luma block, wherein the linear model is PredC[x,y]=?·RecL?[x,y]+?, wherein x and y are sample coordinates, PredC is predicted chroma samples, and RecL? is samples of the down sampled first reconstructed luma block, and wherein the immediate top neighboring reconstructed luma samples are the only top neighboring reconstructed luma samples used, and computing samples of a first predicted chroma block from corresponding samples of the down sampled first reconstructed luma block using the linear model and the parameters.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: February 16, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Madhukar Budagavi, Akira Osamoto
  • Patent number: 10924749
    Abstract: With adaptive multiple quantization, a video or other digital media codec can adaptively select among multiple quantizers to apply to transform coefficients. The switch in quantizers can be signaled at the sequence level or frame level of the bitstream syntax, or can be implicitly specified in the syntax.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: February 16, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Thomas W. Holcomb, Chih-Lung Lin, Pohsiang Hsu, Sridhar Srinivasan
  • Patent number: 10924738
    Abstract: When encoding an array of data elements using an encoding process that generates an array of quantized frequency domain coefficients corresponding to an array of difference values between a source block of data elements of the array of data elements being encoded and a reference block of data elements, a bit count value for encoding an array of quantized frequency domain coefficients to be used to select whether to encode the source block in accordance with a particular set of encoding options is estimated by estimating a bit count value for encoding the locations of the non-zero quantized frequency domain coefficients in the array of quantized frequency domain coefficients based on the number of non-zero frequency domain coefficients in the array of quantized frequency domain coefficients.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: February 16, 2021
    Assignee: Arm Limited
    Inventors: John Nils Andreas Bjorklund, Fredrik Peter Stolt