Intra/inter Selection Patents (Class 375/240.13)
  • Patent number: 11516487
    Abstract: Various concepts which further improve multi-view/layer coding concepts, are described.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: November 29, 2022
    Assignee: GE Video Compression, LLC
    Inventors: Robert Skupin, Karsten Suehring, Yago Sanchez De La Fuente, Gerhard Tech, Valeri George, Thomas Schierl, Detlev Marpe
  • Patent number: 11503315
    Abstract: The present invention provides a method for decoding a video signal, which includes: generating a first prediction block according to a prediction mode of a current block; checking the prediction mode of a neighboring block adjacent to the current block; generating a second prediction block based on the prediction mode of the neighboring block; generating a final prediction block by applying a weight to the first prediction block and the second prediction block; and reconstructing the video signal by using the final prediction block.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: November 15, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Naeri Park, Sunmi Yoo, Junghak Nam, Hyeongmoon Jang
  • Patent number: 11496760
    Abstract: In one example, a video coder is configured to code a first slice, wherein the first slice comprises one of a texture slice and a corresponding depth slice, wherein the first slice has a slice header comprising complete syntax elements representative of characteristics of the first slice. The video coder is further configured to determine common syntax elements for a second slice from the slice header of the first slice. The video coder is also configured to code the second slice after coding the first slice at least partially based on the determined common syntax elements, wherein the second slice comprises one of the texture slice and the depth slice that is not the first slice, wherein the second slice has a slice header comprising syntax elements representative of characteristics of the second slice, excluding values for syntax elements that are common to the first slice.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: November 8, 2022
    Assignee: Qualcomm Incorporated
    Inventors: Ying Chen, Marta Karczewicz
  • Patent number: 11483572
    Abstract: A method for decoding an image based on an intra prediction, comprising: obtaining a first prediction pixel of a first region in a current block by using a neighboring pixel adjacent to the current block; obtaining a second prediction pixel of a second region in the current block by using the first prediction pixel of the first region; and decoding the current block based on the first and the second prediction pixels.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: October 25, 2022
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Je Chang Jeong, Ki Baek Kim, Won Jin Lee, Hye Jin Shin, Jong Sang Yoo, Jang Hyeok Yun, Kyung Jun Lee, Jae Hun Kim, Sang Gu Lee
  • Patent number: 11457217
    Abstract: There is provided an video encoding/decoding method and apparatus. The video decoding method comprises acquiring a bitstream including a predetermined context element, performing at least one of a context model determination, a probability update, and a probability interval determination on the predetermined syntax element, and arithmetically decoding the predetermined syntax element on the basis of a result of the performance.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: September 27, 2022
    Assignees: Electronics and Telecommunications Research Institute, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY, INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
    Inventors: Jin Ho Lee, Jung Won Kang, Ha Hyun Lee, Sung Chang Lim, Hui Yong Kim, Jae Gon Kim, Do Hyeon Park, Yong Uk Yoon, Yung Lyul Lee
  • Patent number: 11457240
    Abstract: An encoder which transforms a current block to be encoded in an image to encode the current block includes circuitry and memory. The circuitry, using the memory: determines a plurality of first transform basis candidates and transforms the current block using a transform basis included in the plurality of first transform basis candidates determined, when the current block has a first size; and determines one or more second transform basis candidates different from the plurality of first transform basis candidates and transforms the current block using a transform basis included in the one or more second transform basis candidates determined, when the current block has a second size larger than the first size.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: September 27, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Ryuichi Kanoh, Tadamasa Toma, Kiyofumi Abe, Takahiro Nishi, Masato Ohkawa, Hideo Saitou
  • Patent number: 11451796
    Abstract: The present disclosure provides systems and methods for signaling and using a palette mode in video processing. According to certain disclosed embodiments, an exemplary video processing method includes: receiving a first palette entry for palette coding a target coding unit (CU); determining whether the target CU is part of a single-tree slice; determining whether the target CU is coded with separate luma and chroma trees; and in response to the target CU being determined to be part of a single-tree slice and be coded with separate luma and chroma trees, decoding a first component of the target CU based on the first palette entry, and decoding a second component of the target CU based on a default palette entry.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: September 20, 2022
    Assignee: Alibaba Group Holding Limited
    Inventors: Mohammed Golam Sarwer, Ru-Ling Liao, Yan Ye, Jiancong Luo, Jie Chen
  • Patent number: 11445184
    Abstract: According to the disclosure of the present document, when the inter prediction type of a current block indicates bi-prediction, weight index information for candidates in a merge candidate list or a sub-block merge candidate list can be derived, and thus coding efficiency can be increased.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: September 13, 2022
    Inventors: Naeri Park, Junghak Nam, Hyeongmoon Jang
  • Patent number: 11445197
    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 the first mode if the current syntax element is intra-coded and 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 the 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: April 29, 2021
    Date of Patent: September 13, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Kiran Misra, Christopher A. Segall
  • Patent number: 11438635
    Abstract: Methods, systems and devices for using flexible and efficient partitioning techniques are described. An exemplary method for visual media decoding includes applying, to a current visual media block, a partitioning process that splits the current visual media block into more than four sub-blocks; decoding, based on a bitstream representation, the more than four sub-blocks; and decoding, based on the more than four sub-blocks and the partitioning process, the current visual media block. Another exemplary method for visual media encoding includes receiving input data associated with a current visual media block; applying, to the input data, a partitioning process that splits the current visual media block into more than four sub-blocks; encoding, based on the partitioning process, the more than four sub-blocks; and generating, based on the encoding, a bitstream representation of the current visual media block.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: September 6, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Hsiao Chiang Chuang, Yue Wang
  • Patent number: 11438589
    Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus of the present invention may comprise decoding an indicator indicating whether or not partition information of a current block is derived from partition information of a corresponding block of the current block, obtaining the partition information of the current block based on the decoded indicator, and partitioning the current block based on the obtained partition information.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: September 6, 2022
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY, HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jin Ho Lee, Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Hae Chui Choi, Aram Back, Jin Soo Choi, Jae Gon Kim
  • Patent number: 11431984
    Abstract: Video coding and decoding methods are described. In example method includes determining that a differential coding mode is applicable to a conversion between a current video block of a video and a bitstream representation of the current video block, and performing, based on the determining, the conversion between the current video block and the bitstream representation of the current video block using the differential coding mode according to an implementation rule, where, in the differential coding mode, the current video block is represented in the bitstream representation using a difference between a quantized residual of an intra prediction of the current video block and a prediction of the quantized residual, and where, in the differential coding mode, the difference between the quantized residual and the prediction of the quantized residual is represented using a differential pulse coding modulation (DPCM) representation.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: August 30, 2022
    Assignee: BYTEDANCE INC.
    Inventors: Weijia Zhu, Li Zhang, Jizheng Xu, Hsiao Chiang Chuang
  • Patent number: 11425368
    Abstract: Embodiments are disclosed for lossless image compression using block-based prediction and context adaptive entropy coding. A method of lossless image compression using block-based prediction and context adaptive entropy coding comprises dividing an input image into a plurality of blocks, determining a pixel predictor for each block based on a block strategy, determining a plurality of residual values using the pixel predictor for each block, selecting a subset of features associated with the plurality of residual values, performing context modeling on the plurality of residual values based on the subset of features to identify a plurality of residual clusters, and entropy coding the plurality of residual clusters.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: August 23, 2022
    Assignee: Adobe Inc.
    Inventors: Stefano Petrangeli, Viswanathan Swaminathan, Haoliang Wang
  • Patent number: 11418793
    Abstract: A video coding device is configured to determine control point motion vectors (CPMVs) for an affine motion predicted block of video data. For a four parameter affine model, two CPMVs may be positioned at any two corners of the current block, such as top-left and bottom-right or bottom-left; top-right and bottom-left or bottom-right; or bottom-left and bottom-right. For a six parameter affine model, three CPMVs may be positioned at any three corners of the current block, such as top-left, bottom-left, and bottom-right; top-right, bottom-left, and bottom-right; or top-left, top-right, and bottom-right. The video coder may further predict the CPMVs using motion information of neighboring blocks to the determined CPMVs, code the CPMVs, and code the current block using the CPMVs. The video coder may be a video encoder or a video decoder.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 16, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Han Huang, Wei-Jung Chien, Marta Karczewicz
  • Patent number: 11418806
    Abstract: A method for decoding image frames at a client is described. The method includes generating an estimated image frame after receiving an encoded image frame of a stream of encoded image frames. The method further includes decoding the encoded image frame when the encoded image frame is received at a decode interval set for a frame rate of presentation. The method includes using the estimated image frame when a corresponding encoded image frame fails to arrive within the stream for presentation at the frame rate.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: August 16, 2022
    Assignee: Sony Interactive Entertainment Inc.
    Inventor: William S. Watson
  • Patent number: 11412228
    Abstract: A video coding method includes: obtaining a current frame from a plurality of video frames to be encoded, the plurality of video frames having different resolutions; determining a target motion vector (MV) corresponding to each block in the current frame at a target resolution represented by selected target MV resolution information; obtaining a motion vector prediction (MVP) corresponding to each block and at the target resolution; and encoding the current frame according to a motion vector difference (MVD) between each target MV and the MVP of each block to obtain encoded data. The encoded data includes identification information representing the target resolution.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: August 9, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Xinwei Gao, Xunan Mao, Chenchen Gu
  • Patent number: 11405638
    Abstract: A method of video decoding performed in a video decoder is provided. In the method, coded information of neighboring blocks of a current block is received from a coded video bitstream. The coded information includes intra prediction information of the neighboring blocks. Intra prediction information of the current block is determined based on the coded information of the neighboring blocks. An intra prediction direction mode is determined based on the intra prediction information of the current block. At least one sample of the current block is reconstructed according to the intra prediction direction mode of the current block.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: August 2, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Xiang Li, Shan Liu
  • Patent number: 11388411
    Abstract: Video coding and decoding methods are described. In example method includes determining that a differential coding mode is applicable to a conversion between a current video block of a video and a bitstream representation of the current video block, and performing, based on the determining, the conversion between the current video block and the bitstream representation of the current video block using the differential coding mode according to an implementation rule, where, in the differential coding mode, the current video block is represented in the bitstream representation using a difference between a quantized residual of an intra prediction of the current video block and a prediction of the quantized residual, and where, in the differential coding mode, the difference between the quantized residual and the prediction of the quantized residual is represented using a differential pulse coding modulation (DPCM) representation.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: July 12, 2022
    Assignee: BYTEDANCE INC.
    Inventors: Weijia Zhu, Li Zhang, Jizheng Xu, Hsiao Chiang Chuang
  • Patent number: 11388399
    Abstract: An image prediction method, apparatus, and system, a device, and a storage medium are provided. The method includes: (401) obtaining a split mode of a current node, where the current node is an image block in a coding tree unit in a current image; (402) determining, based on the split mode of the current node and a size of the current node, whether the current node satisfies a first condition; and (403) when it is determined that the current node satisfies the first condition, performing intra prediction on all coding blocks belonging to the current node, to obtain predictors of all the coding blocks belonging to the current node.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: July 12, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yin Zhao, Haitao Yang, Jianle Chen, Lian Zhang
  • Patent number: 11368694
    Abstract: A quantized transform coefficient matrix is partitioned into a sequence of partition portions. The coefficients of the matrix are grouped into the sequence of partition portions based on a hardware implemented scan order. Each partition portion is processed in an order of the sequence in a first pass. For each partition portion, a group of coefficients in the partition portion is determined. For each partition portion, a first data rate estimation for the quantized transform coefficient matrix is updated based on at least some coefficients of the group of coefficients in the partition portion and a maximum end-of-block. For each partition portion, an end-of-block estimation of the quantized transform coefficient matrix is updated based on at least some coefficients of the group of coefficients in the partition portion. A first resulting data rate estimation and a true end-of-block of the quantized transform coefficient matrix are determined after the first pass.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: June 21, 2022
    Assignee: Meta Platforms, Inc.
    Inventors: Gaurang Chaudhari, Yunqing Chen, Zhao Wang, Harikrishna Madadi Reddy
  • Patent number: 11363279
    Abstract: An apparatus for video decoding includes processing circuitry. The processing circuitry decodes prediction information of a current block from a coded video bitstream. The prediction information is indicative of an intra block copy mode. The current block is one of a plurality of coding blocks in a coding tree block (CTB) with a right to left coding order being allowed within the CTB. Further, the processing circuitry determines a block vector that points to a reference block in a same picture as the current block and checks that two corner samples of the reference block of the reference block have been reconstructed. In addition, the processing circuitry checks that an additional sample of the reference block has been reconstructed. Then, the processing circuitry reconstructs at least a sample of the current block based on reconstructed samples of the reference block that are retrieved from the reference sample memory.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: June 14, 2022
    Assignee: Tencent America LLC
    Inventors: Yeqing Wu, Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 11343523
    Abstract: The present disclosure discloses a video decoding method, including: parsing a received bitstream to obtain prediction information of a CU; obtaining a target transform mode of a residual TU; parsing the received bitstream to obtain transform coefficients of the residual TU; applying an inverse quantization to the transform coefficients of the residual TU to obtain dequantized coefficients; applying, based on the target transform mode, an inverse transform to the dequantized coefficients to obtain a residual block of the residual TU; obtaining a prediction block of the CU based on the prediction information; and obtaining a video block based on the residual block and the prediction block; and outputting a video sequence, the video sequence including a video frame that includes the video block.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: May 24, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yin Zhao, Haitao Yang, Jianle Chen
  • Patent number: 11343490
    Abstract: An image encoding/decoding method and apparatus are provided. An image encoding method performed by an image encoding apparatus may comprise determining an intra-prediction mode of a current block, configuring a reference sample of intra prediction by using at least one of a neighbor pixel of the current block in a current picture and a pixel of a reference picture, and performing intra prediction for the current block based on the intra-prediction mode and the reference sample.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: May 24, 2022
    Assignees: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Jung Won Kang, Hyun Suk Ko, Sung Chang Lim, Jin Ho Lee, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi, Gwang Hoon Park, Tae Hyun Kim, Dae Young Lee
  • Patent number: 11330319
    Abstract: A method of encoding, and decoding, a human-inaudible acoustic signal 240 embedded within audio content, suitable for use within the processor of an encoding and broadcasting system or a decoding and receiving system 200, 202. A binary message is encoded into a sequence 1000, 2000 of symbols selected from a group of four or eight symbols, each symbol encoding two or three binary bits with an associated frequency. The human-inaudible acoustic signal may have a variable length, with the length of the signal encoded in a header 1002-1008, 2002-2009. The encoding uses both forward error correction and cyclic redundancy coding to increase the robustness of the transmission. Furthermore, the binary bits encoded by the symbols are selected such that a Hamming distance of a single bit transformation exists between symbols associated with adjacent frequencies, so that a frequency error creates only a single bit error.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: May 10, 2022
    Assignee: LISNR, Inc.
    Inventor: William Knauer
  • Patent number: 11323724
    Abstract: Several methods and systems for chroma residual data prediction for encoding blocks corresponding to video data are disclosed. In an embodiment, at least one coefficient correlating reconstructed luma residual samples and corresponding reconstructed chroma residual samples is computed for one or more encoded blocks of video data. Predicted chroma residual samples are generated for encoding a block of video data based on corresponding reconstructed luma residual samples and the at least one coefficient.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: May 3, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ajit Deepak Gupte, Ranga Ramanujam Srinivasan
  • Patent number: 11323693
    Abstract: Innovations in intra-picture prediction with multiple candidate reference lines available are described herein. For example, intra-picture prediction for a current block uses a non-adjacent reference line of sample values to predict the sample values of the current block. This can improve the effectiveness of the intra-picture prediction when the reference line of sample values that is adjacent the current block includes significant capture noise, significant quantization error, or significantly different values (compared to the current block) due to an occlusion.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: May 3, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Bin Li, Jizheng Xu, Jiahao Li
  • Patent number: 11317094
    Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. In a method, prediction information of a current block of a current picture in a coded bitstream is decoded. The prediction information indicates a geometric partitioning mode (GPM) for the current block. The current block is partitioned into two partitions in the GPM mode. Each of the partitions is associated with a respective predictor. A weighting index for a sample of the current block is determined based on a position of the sample. A weighting factor is calculated based on the weighting index of the sample according to an equation that converts the weighting index to the weighting factor. The sample is reconstructed based on the weighting factor and the predictor corresponding to the sample.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: April 26, 2022
    Assignee: TENCENT AMERICA LLC
    Inventors: Lien-Fei Chen, Xiang Li, Guichun Li, Shan Liu
  • Patent number: 11317084
    Abstract: Innovations in intra-picture prediction with multiple candidate reference lines available are described herein. For example, intra-picture prediction for a current block uses a non-adjacent reference line of sample values to predict the sample values of the current block. This can improve the effectiveness of the intra-picture prediction when the reference line of sample values that is adjacent the current block includes significant capture noise, significant quantization error, or significantly different values (compared to the current block) due to an occlusion.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: April 26, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Bin Li, Jizheng Xu, Jiahao Li
  • Patent number: 11310517
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. Coding decision information of a representative channel of a target block is shared as coding decision information of a target channel of the target block, and decoding of the target block is performed using the coding decision information of the target channel. Since the coding decision information of the representative channel is shared with an additional channel, repeated signaling of identical coding decision information may be prevented. By means of this prevention, the efficiency of encoding and decoding of the target block or the like may be improved.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: April 19, 2022
    Assignees: Electronics and Telecommunications Research Institute, RESEARCH AND BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Dong-San Jun, Jung-Won Kang, Hyunsuk Ko, Sung-Chang Lim, Jin-Ho Lee, Ha-Hyun Lee, Byeung-Woo Jeon, Hui-Yong Kim, Jee-Yoon Park
  • Patent number: 11310534
    Abstract: A method by which a decoding device decodes an image, according to the present document, comprises the steps of: generating a restoration picture on the basis of prediction samples of a coding block; deriving a boundary strength (BS) for a boundary of the coding block in the restoration picture; performing deblocking filtering on the boundary of the coding block on the basis of the boundary strength; and deriving a modified restoration picture for the restoration picture on the basis of the deblocking filtering, wherein the boundary strength is derived on the basis of a prediction mode of a first block and a second block that are adjacent to the boundary of the coding block, and the prediction mode of the first block or the second block is derived on the basis of whether the prediction mode of the first block or the second block is a current picture referencing (CPR) mode to be coded in reference to a current picture.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: April 19, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyeongmoon Jang, Junghak Nam
  • Patent number: 11290744
    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: November 24, 2020
    Date of Patent: March 29, 2022
    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: 11284068
    Abstract: Techniques for video processing are described. One example method includes determining an indication that indicates a maximum number of candidates allowed in a candidate list for at least one video block in a video, the maximum number of candidates allowed in the candidate list corresponding to at least one of a maximum number of candidates in a geometry partition mode (GEO) based merge candidate list, a maximum number of base candidates in a merge with motion vector difference (MMVD) merge candidate list, a maximum number of base candidates in a sub-block based MMVD merge candidate list, and a maximum number of candidates in a geometry partition mode based affine merge candidate list; and performing video processing on the at least one video block based on the indication.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: March 22, 2022
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11284078
    Abstract: A method of decoding a bitstream by an electronic device is provided. An image frame of the bitstream is received, and a block unit having a block width and a block height is determined from the received image frame. The electronic device determines whether a geometric partitioning mode is disabled for the block unit based on a comparison between the block width and the block height. The block unit is divided to generate a plurality of sub-blocks predicted by different merge candidates of the block unit when the geometric partitioning mode is applied on the block unit. The predicted block is generated by predicting block unit based on a prediction mode different from the geometric partitioning mode when the geometric partitioning mode is disabled for the block unit. The block unit is reconstructed based on the predicted block.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: March 22, 2022
    Assignee: FG Innovation Company Limited
    Inventors: Yu-Chiao Yang, Chih-Yu Teng
  • Patent number: 11277618
    Abstract: A method of decoding video data includes determining, by one or more processors implemented in circuitry, a picture size of a picture. The picture size applies a picture size restriction to set a width of the picture and a height of the picture to each be a respective multiple of a maximum of 8 and a minimum coding unit size for the picture. The method further includes determining, by the one or more processors, a partition of the picture into a plurality of blocks and generating, by the one or more processors, a prediction block for a block of the plurality of blocks. The method further includes decoding, by the one or more processors, a residual block for the block and combining, by the one or more processors, the prediction block and the residual block to decode the block.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: March 15, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Luong Pham Van, Geert Van der Auwera, Adarsh Krishnan Ramasubramonian, Vadim Seregin, Marta Karczewicz
  • Patent number: 11252436
    Abstract: A video picture inter prediction method includes determining an inter prediction mode used to perform inter prediction on a current picture block, where the inter prediction mode is one mode in a candidate inter prediction mode set, and the candidate inter prediction mode set includes a plurality of inter prediction modes used for a non-directional motion field or a plurality of inter prediction modes used for a directional motion field, and performing inter prediction on the current picture block based on the determined inter prediction mode.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: February 15, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Na Zhang, Jianhua Zheng, Jicheng An
  • Patent number: 11252425
    Abstract: An apparatus includes processing circuitry for video decoding. The processing circuitry locates luma units of a luma coding unit that are co-located with chroma units of a chroma coding unit, and then determines a popularity of an intra block copy mode in the luma units. Further, the processing circuitry determines a block vector for a chroma unit in the chroma coding unit when the popularity meets a requirement, and reconstructs at least one sample of the chroma unit according to the block vector.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: February 15, 2022
    Assignee: Tencent America LLC
    Inventors: Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 11240493
    Abstract: Apparatuses and methods for encoding and decoding a video are provided. A method includes determining whether at least one of two blocks of an image in a video is predicted with a combined inter-intra prediction (CIIP), wherein the two blocks include a first block (block Q) and a second block (block P). There is a boundary between the two blocks. The method further includes setting a boundary strength (Bs) for the boundary to a first value based on determining that at least one of the two blocks is predicted with the CIIP, and performing deblocking for the boundary between the first block and the second block based on the Bs to generate a modified reconstructed block for each of the first block and the second block.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: February 1, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Biao Wang, Anand Meher Kotra, Semih Esenlik, Han Gao, Jianle Chen
  • Patent number: 11240499
    Abstract: An apparatus for video decoding includes receiving and processing circuitry. The circuitry is configured to receive a bitstream including a syntax element associated with a parent coding unit (CU) in a picture indicating the parent CU is partitioned into a predefined set of child CUs without performing a recursive tree-structure-based partitioning, and process the child CUs according to the indication of the syntax element to reconstruct the picture. In an embodiment, at least two subdivisions need to be performed when the parent CU is partitioned using the recursive tree-structure-based partitioning in order to obtain the same set of child CUs. In an embodiment, at least one of the child CUs has a size larger than a minimum allowed CU size for partitioning the parent CU and includes no syntax element to indicate whether the at least one of the child CUs is to be further subdivided.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: February 1, 2022
    Assignee: Tencent America LLC
    Inventors: Shan Liu, Zhenzhong Chen, Sijia Chen, Yiming Li
  • Patent number: 11234003
    Abstract: An intra-prediction method according to the present invention comprises the steps of: acquiring intra-prediction mode information from a bitstream; deriving neighboring reference samples of a current block; determining an intra-directional mode for the current block; deriving a predicted block for the current block based on the intra-directional mode and the neighboring reference samples; deriving template reference samples based on the neighboring reference samples; a template reference block based on the template reference samples; and generating a modified predicted block based on the predicted block and the template reference block. The present invention can generate a modified predicted block based on an intra-predicted block and a template reference block, thereby improving the intra-prediction performance.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: January 25, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyeongmoon Jang, Naeri Park, Junghak Nam
  • Patent number: 11218724
    Abstract: The present disclosure provides methods and systems for motion compensation. The method can include: determining a plurality of intermediate interpolation coefficients of an interpolation filter, the determining of the plurality of intermediate interpolation coefficients being: based on positions of a plurality of integer samples respectively, and based on fractional reference positions of a plurality of fractional samples respectively; determining a plurality of integer interpolation coefficients of the interpolation filter by rounding the plurality of intermediate interpolation coefficients to a plurality of integers respectively; and applying the plurality of integer interpolation coefficients on a picture to perform motion compensation prediction.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: January 4, 2022
    Assignee: Alibaba Group Holding Limited
    Inventors: Jiancong Luo, Zhao Wang, Yan Ye
  • Patent number: 11218707
    Abstract: By allowing video to be reproduced without causing any image loss or delay, the present invention provides a video streaming apparatus and video streaming system that allow a user to accurately control a mechanism of a machine while watching video taken of the machine.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: January 4, 2022
    Assignees: Cyberstep, Inc.
    Inventor: Shinnosuke Asahara
  • Patent number: 11197021
    Abstract: This application relates to an encoding resolution control method and apparatus, and relates to the field of computer technologies. The encoding resolution control apparatus determines a quantization parameter threshold of a current frame according to a preset rule; determines a quantization parameter estimated value of the current frame according to an encoding mode of an encoder; determines encoding resolution of the current frame according to the quantization parameter threshold and the quantization parameter estimated value of the current frame; and encodes the current frame into a bitstream according to the encoding resolution.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: December 7, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Xunan Mao
  • 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: 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: 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: 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