Block Coding Patents (Class 375/240.24)
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Patent number: 11973717Abstract: The present disclosure relates to a communication technique that combines, with IoT technology, 5G communication system for supporting a higher data transfer rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety related services, etc. on the basis of 5G communication technologies and IoT related technologies. Disclosed, in the present invention, are a method and an apparatus for determining the size of a transport block in a communication or broadcasting system.Type: GrantFiled: March 24, 2022Date of Patent: April 30, 2024Assignee: Samsung Electronics Co., LtdInventors: Jeongho Yeo, Hyojin Lee, Sungjin Park, Jinyoung Oh
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Patent number: 11956458Abstract: An image decoding method performed by a decoding device according to the present document is characterized by comprising the steps of: acquiring image information including a Block-based Delta Pulse Code Modulation (BDPCM) available flag; and generating a reconstructed picture on the basis of the image information, wherein the BDPCM available flag relates to whether BDPCM is available for chroma and luma blocks.Type: GrantFiled: August 4, 2023Date of Patent: April 9, 2024Assignee: LG ELECTRONICS INC.Inventors: Jungah Choi, Sunmi Yoo, Jaehyun Lim, Jangwon Choi, Seunghwan Kim
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Patent number: 11949881Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.Type: GrantFiled: April 1, 2021Date of Patent: April 2, 2024Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute for Industry Cooperation, Industry-Academia Cooperation Group of Sejong UniversityInventors: Se-Yoon Jeong, Hae-Chul Choi, Jeong-Il Seo, Seung-Kwon Beack, In-Seon Jang, Jae-Gon Kim, Kyung-Ae Moon, Dae-Young Jang, Jin-Woo Hong, Jin-Woong Kim, Yung-Lyul Lee, Dong-Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Dae-Yeon Kim, Dong-Kyun Kim
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Patent number: 11949863Abstract: In response to a current block being partitioned into a first partition and a second partition based on a geometric partition mode, a first prediction type for the first partition and a second prediction type for the second partition are determined based on a flag associated with one of intra prediction, inter prediction, and intra block copy (IBC). Each of the first and second prediction types is one of the intra prediction, the inter prediction, and the IBC. Based on the first prediction type, a first prediction mode for the first partition of the current block is determined. Based on the second prediction type, a second prediction mode for the second partition of the current block is determined. The first partition of the current block is reconstructed based on the first prediction mode and the second partition of the current block is reconstructed based on the second prediction mode.Type: GrantFiled: July 29, 2022Date of Patent: April 2, 2024Assignee: TENCENT AMERICA LLCInventors: Lien-Fei Chen, Xiang Li, Ling Li, Shan Liu
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Patent number: 11943449Abstract: A video decoding device for decoding video using inter prediction includes entropy decoding means for decoding an inter-PU partition type syntax; and decoding control means for making the entropy decoding means decode the inter-PU (Prediction Unit) partition type syntax of a CU (Coding Unit) to be decoded, based on whether the prediction mode of the CU to be decoded is an inter prediction mode and whether a size of the CU to be decoded is equal to a predetermined minimum inter-PU size.Type: GrantFiled: January 19, 2023Date of Patent: March 26, 2024Assignee: NEC CORPORATIONInventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
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Patent number: 11936862Abstract: The present disclosure provides a method of coding implemented by a decoding device, the method comprising: obtaining a value of a splitting mode index for a current coding block; obtaining a value of an angle index for the current coding block according to the value of the splitting mode index value and a pre-stored table; setting a value of an index partIdx according to the value of the angle index; and storing motion information for the current coding block according to the value of the index partIdx.Type: GrantFiled: December 31, 2021Date of Patent: March 19, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Han Gao, Semih Esenlik, Elena Alexandrovna Alshina, Anand Meher Kotra, Biao Wang
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Patent number: 11924451Abstract: A reference picture information decoding unit (13) omits decoding of a reference list sorting presence or absence flag and/or a reference list sorting order based on the number of current picture referable pictures.Type: GrantFiled: March 21, 2022Date of Patent: March 5, 2024Assignee: DOLBY INTERNATIONAL ABInventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi, Takeshi Tsukuba
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Patent number: 11889095Abstract: A method of decoding includes encountering an end of tile bit with a first value and byte alignment bits in a video bitstream, which indicate that a current coding tree block (CTB) is a last CTB in a tile; encountering an end of CTB row bit with the first value and the byte alignment bits in the video bitstream, which indicate that waveform parallel processing (WPP) is enabled and that the current CTB is the last CTB in a CTB row but not the last CTB in the tile; and reconstructing the plurality of CTBs in the tile based on the end of tile bit with the first value, the end of CTB row bit with the first value, and the byte alignment bits.Type: GrantFiled: November 3, 2021Date of Patent: January 30, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Fnu Hendry, Ye-Kui Wang
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Patent number: 11882246Abstract: An image decoding method includes reconstructing a current image by performing deblocking filtering on a boundary of at least one reconstruction block from among reconstruction blocks, wherein the reconstructing of the current image by performing the deblocking filtering on the boundary of the at least one reconstruction block from among the reconstruction blocks includes, when a prediction mode of at least one reconstruction mode from among blocks located on both sides of the boundary of the at least one reconstruction block is a combined inter-intra prediction mode, determining that a value of a boundary filtering strength applied to the boundary of the at least one reconstruction block is a predetermined value and performing deblocking filtering on the boundary of the at least one reconstruction block based on the determined value of the boundary filtering strength.Type: GrantFiled: March 10, 2022Date of Patent: January 23, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Minsoo Park, Minwoo Park, Kiho Choi, Seungsoo Jeong
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Patent number: 11876999Abstract: A method for decoding a video according to the present invention may comprise: generating a first prediction block for a current block based on a first prediction mode, generating a second prediction block for a current block based on a second prediction mode, and generating a final prediction block of the current block based on the first prediction block and the second prediction block.Type: GrantFiled: June 30, 2017Date of Patent: January 16, 2024Assignee: KT CORPORATIONInventor: Bae Keun Lee
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Patent number: 11870988Abstract: An image decoding method includes reconstructing a current image by performing deblocking filtering on a boundary of at least one reconstruction block from among reconstruction blocks, wherein the reconstructing of the current image by performing the deblocking filtering on the boundary of the at least one reconstruction block from among the reconstruction blocks includes, when a prediction mode of at least one reconstruction mode from among blocks located on both sides of the boundary of the at least one reconstruction block is a combined inter-intra prediction mode, determining that a value of a boundary filtering strength applied to the boundary of the at least one reconstruction block is a predetermined value and performing deblocking filtering on the boundary of the at least one reconstruction block based on the determined value of the boundary filtering strength.Type: GrantFiled: March 10, 2022Date of Patent: January 9, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Minsoo Park, Minwoo Park, Kiho Choi, Seungsoo Jeong
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Patent number: 11871002Abstract: In various embodiments, an iterative encoding application encodes a source video sequence. The encoding optimization application generates a set of shot encode points based on a set of encoding points and a first shot sequence included in the source video sequence. Each shot encode point is associated with a different encoded shot sequence. The encoding optimization application performs convex hull operation(s) across the set of shot encode points to generate a first convex hull associated with the first shot sequence. Subsequently, the encoding optimization application generates encoded video sequences based on the first convex hull and a second convex hull associated with a second shot sequence included in the source video sequence. The encoding optimization application computes a new encoding point based on the encoded video sequences and a target value for a first video metric and then generates an optimized encoded video sequence based on the new encoding point.Type: GrantFiled: February 8, 2021Date of Patent: January 9, 2024Assignee: NETFLIX, INC.Inventor: Ioannis Katsavounidis
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Patent number: 11870575Abstract: Systems and methods for error detection in video data is described. An encoding computing system can receive a video frame. The encoding computing system can encode and decode the video frame based on an encoding scheme. The encoding computing system can generate a frame error detection code for the decoded video frame based on an error detection code generation scheme. The encoding computing system can send the encoded video frame and the error detection code to a decoding computing system. The decoding computing system can decode the encoded video frame and generate a second error detection code using the code generation scheme. The decoding computing system can detect that the decoded video frame is corrupted by comparing the error detection code and the second error detection code.Type: GrantFiled: May 5, 2020Date of Patent: January 9, 2024Assignee: GOOGLE LLCInventors: Sergey Anatolyevich Babkin, Myles Jordan
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Patent number: 11856228Abstract: A deblocking method is provided for deblocking a sub-partition boundary within a coding block during image encoding and/or image decoding process. The coding block is coded in an intra prediction mode and the coding block is partitioned into sub-partitions comprising a first sub-partition and a second sub-partition that is adjacent to the first sub-partition. The method comprises: determining a maximum filter length to be 1 for a first/second sub-partition when a width of the first or second sub-partition is 4 samples, or when a height of the first or second sub-partition is 4 samples; modifying a value of up to one sample of the first or second sub-partition, wherein the value of the up to one sample is obtained from a row or a column of the first or second sub-partition that is perpendicular to and adjacent to the sub-partitions boundary between the first sub-partition and the second sub-partition.Type: GrantFiled: August 11, 2021Date of Patent: December 26, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Biao Wang, Anand Meher Kotra, Semih Esenlik, Han Gao, Jianle Chen
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Patent number: 11838527Abstract: An encoding/decoding device according to the present invention derives a residual coefficient of a residual block from a bitstream, calculates a quantization parameter for the residual block, performs inverse quantization on the residual coefficient by using the quantization parameter, and performs inverse conversion on the inversely quantized residual coefficient, thereby enabling restoration of a residual sample of the residual block.Type: GrantFiled: February 7, 2022Date of Patent: December 5, 2023Assignee: HANWHA VISION CO., LTD.Inventors: Dong Gyu Sim, Sea Nae Park
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Patent number: 11838553Abstract: Disclosed are systems, methods, apparatuses, and computer-readable media for processing video data. For instance, an apparatus for processing video data, may include: at least one memory; and at least one processor coupled to the at least one memory, the at least one processor being configured to: obtain a bitstream; retrieve a granularity type syntax element associated with the bitstream, the granularity type syntax element specifying a type of granularity of one or more pictures over which complexity metrics (CM) associated with the bitstream are applicable; retrieve a period type syntax element associated with the bitstream, the period type syntax element indicating an upcoming period of time or a set of pictures over which the CM are applicable; and decode a portion of the bitstream based on the granularity type syntax element and the period type syntax element.Type: GrantFiled: July 29, 2022Date of Patent: December 5, 2023Assignee: QUALCOMM INCORPORATEDInventors: Yong He, Muhammed Zeyd Coban
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Patent number: 11831889Abstract: In a method of video encoding for an encoder, a determination is made to determine whether (i) an implicit transform scheme is enabled, and (ii) at least one of a low-frequency non-separable transform (LFNST) and a matrix-based intra predication mode (MIP) is invalid for a coding unit (CU). In response to the determination that the implicit transform scheme is enabled, and at least one of the LFNST and MIP is invalid, a primary transform type is determined based on a size of the CU. A primary transform is performed for a transform block that is partitioned from the CU in accordance with the determined primary transform type. A coded bitstream that indicates the primary transform type of the CU is subsequently output.Type: GrantFiled: October 4, 2021Date of Patent: November 28, 2023Assignee: TENCENT AMERICA LLCInventors: Xin Zhao, Xiang Li, Shan Liu
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Patent number: 11825077Abstract: 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: GrantFiled: April 20, 2022Date of Patent: November 21, 2023Assignees: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee UniversityInventors: 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
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Patent number: 11800104Abstract: An image decoding method includes reconstructing a current image by performing deblocking filtering on a boundary of at least one reconstruction block from among reconstruction blocks, wherein the reconstructing of the current image by performing the deblocking filtering on the boundary of the at least one reconstruction block from among the reconstruction blocks includes, when a prediction mode of at least one reconstruction mode from among blocks located on both sides of the boundary of the at least one reconstruction block is a combined inter-intra prediction mode, determining that a value of a boundary filtering strength applied to the boundary of the at least one reconstruction block is a predetermined value and performing deblocking filtering on the boundary of the at least one reconstruction block based on the determined value of the boundary filtering strength.Type: GrantFiled: March 8, 2022Date of Patent: October 24, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Minsoo Park, Minwoo Park, Kiho Choi, Seungsoo Jeong
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Patent number: 11800103Abstract: An image decoding method includes reconstructing a current image by performing deblocking filtering on a boundary of at least one reconstruction block from among reconstruction blocks, wherein the reconstructing of the current image by performing the deblocking filtering on the boundary of the at least one reconstruction block from among the reconstruction blocks includes, when a prediction mode of at least one reconstruction mode from among blocks located on both sides of the boundary of the at least one reconstruction block is a combined inter-intra prediction mode, determining that a value of a boundary filtering strength applied to the boundary of the at least one reconstruction block is a predetermined value and performing deblocking filtering on the boundary of the at least one reconstruction block based on the determined value of the boundary filtering strength.Type: GrantFiled: March 8, 2022Date of Patent: October 24, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Minsoo Park, Minwoo Park, Kiho Choi, Seungsoo Jeong
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Patent number: 11800123Abstract: Coefficient data related to an image is coded in parallel in each line of coding tree units each including transformation blocks and corresponding to a topmost coding block in a tree structure, and coding of each line is performed so as to be delayed by an amount corresponding to one coding tree unit with respect to coding of a line immediately above the line to be coded. Additionally, coded data obtained by coding coefficient data related to an image is decoded in parallel in each line of coding tree units each including transformation blocks and corresponding to a topmost coding block in a tree structure, and decoding of each line is performed so as to be delayed by an amount corresponding to one coding tree unit with respect to decoding of a line immediately above the line to be decoded.Type: GrantFiled: December 6, 2019Date of Patent: October 24, 2023Assignee: SONY GROUP CORPORATIONInventor: Yuji Fujimoto
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Patent number: 11785240Abstract: A method of video encoding includes determining whether a reference block for a current block is located in a different coding tree unit (CTU) than a CTU of the current block. The method also includes, in response to the reference block being located in the different CTU, (i) determining whether a memory location of a reference sample memory for the reference block is available. The second area is collocated in the different CTU with a position of the first area in the CTU of the current block. In response to the determination that the reference block is located in the different CTU, the method also includes, (ii) in response to a determination that the memory location for the reference block is available, retrieving, from the memory location corresponding to the reference block, one or more samples to encode the current block.Type: GrantFiled: September 13, 2022Date of Patent: October 10, 2023Assignee: Tencent America LLCInventors: Xiaozhong Xu, Shan Liu, Xiang Li
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Patent number: 11785259Abstract: As part of bypass decoding syntax elements for a set of coefficients in response to reaching a maximum number of regular coded bins, a video decoder is configured to receive a prefix value for a transform coefficient; decode the prefix value using Golomb-Rice coding; in response to a length of the prefix value being equal to a threshold value, receive a suffix value for the transform coefficient; decode the suffix value using exponential Golomb coding; and determine a level value for the transform coefficient based on the decoded prefix value and the decoded suffix value.Type: GrantFiled: September 8, 2022Date of Patent: October 10, 2023Assignee: QUALCOMM IncorporatedInventors: Muhammed Zeyd Coban, Marta Karczewicz
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Patent number: 11783585Abstract: A method of detecting frames in a video that demarcate a pre-determined type of video segment within the video is provided. The method includes identifying visually distinctive candidate marker frames within the video, grouping the candidate marker frames into a plurality of groups based on visual similarity, computing a collective score for each of the groups based on temporal proximity of each of the candidate marker frames within the group to related events occurring within the video, and selecting at least one of the groups based on the collective proximity scores as marker frames that demarcate the pre-determined type of video segment. A video processing electronic device and at least one non-transitory computer readable storage medium having computer program instructions stored thereon for performing the method are also provided.Type: GrantFiled: July 29, 2022Date of Patent: October 10, 2023Assignee: ARRIS Enterprises LLCInventors: Renxiang Li, Faisal Ishtiaq, Stephen P. Emeott, Anthony J. Braskich
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Patent number: 11785229Abstract: A further coding efficiency increase may be achieved if for a current block of a picture, for which the bit stream signals one of supported partitioning patterns, a reversal of the partitioning by block merging is avoided. In particular, if the signaled one of the supported partitioning patterns specifies a subdivision of the block into two or more further blocks, a removal of certain coding parameter candidates for all further blocks, except a first further block of the further blocks in a coding order, is performed. Particularly, those coding parameter candidates are removed from the set of coding parameter candidates for the respective further block, the coding parameters of which are the same as coding parameters associated with any of the further blocks which, when being merged with the respective further block, would result in one of the supported partitioning pattern. This avoids redundancy between partitioning coding and merging coding.Type: GrantFiled: May 25, 2021Date of Patent: October 10, 2023Assignee: GE Video Compression, LLCInventors: Philipp Helle, Heiko Schwarz, Detlev Marpe, Thomas Wiegand, Simon Oudin, Benjamin Bross
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Patent number: 11765375Abstract: An image decoding method performed by a decoding device according to the present document is characterized by comprising the steps of: acquiring image information including a Block-based Delta Pulse Code Modulation (BDPCM) available flag; and generating a reconstructed picture on the basis of the image information, wherein the BDPCM available flag relates to whether BDPCM is available for chroma and luma blocks.Type: GrantFiled: June 24, 2022Date of Patent: September 19, 2023Assignee: LG ELECTRONICS INC.Inventors: Jungah Choi, Sunmi Yoo, Jaehyun Lim, Jangwon Choi, Seunghwan Kim
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Patent number: 11765443Abstract: Systems and methods are described herein for playback of streaming media content during a dual mode trick play operation. An I-frame only playlist is generated from a media content stream. The I-frame only playlist includes a plurality of I-frames. A set of I-frames are selected from the plurality of I-frames for scan play back mode based on metadata associated with the media content stream. A curated I-frame only playlist of the selected set of I-frames is generated for display during scan play back mode. In one embodiment, the selected set of I-frames is an I-frame identified at the beginning of each of the segments.Type: GrantFiled: February 9, 2021Date of Patent: September 19, 2023Assignee: ROVI GUIDES, INC.Inventor: Steven Mayhew
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Patent number: 11758162Abstract: Various innovations facilitate the use of intra-picture prediction modes such as palette prediction mode, intra block copy mode, intra line copy mode and intra string copy mode by an encoder or decoder when wavefront parallel processing (“WPP”) is enabled. For example, for a palette coding/decoding mode, an encoder or decoder predicts a palette for an initial unit in a current WPP row of a picture using previous palette data from a previous unit in a previous WPP row of the picture. Or, as another example, for an intra copy mode (e.g., intra block copy mode, intra string copy mode, intra line copy mode), an encoder enforces one or more constraints attributable to the WPP, or a decoder receives and decodes encoded data that satisfies one or more constraints attributable to WPP.Type: GrantFiled: May 9, 2022Date of Patent: September 12, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Bin Li, Jizheng Xu
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Patent number: 11736727Abstract: A method of decoding video data comprises updating a coefficient statistic value based on one or more transform coefficients of a transform block (TB), wherein updating the coefficient statistic value comprises, for each respective transform coefficient of the one or more transform coefficients of the TB: performing a derivation process to determine a temporary value, wherein the derivation process is determined based at least in part on which encoding procedure of a plurality of encoding procedures is used to encode the respective transform coefficient, the plurality of encoding procedures including a context-based procedure for encoding the respective transform coefficient and encoding the respective transform coefficient as an absolute value; and setting the coefficient statistic value as an average of the coefficient statistic value and the temporary value; determining a history value based on the coefficient statistic value; determining a Rice parameter for a specific transform coefficient of the TB.Type: GrantFiled: December 20, 2021Date of Patent: August 22, 2023Assignee: QUALCOMM IncorporatedInventors: Dmytro Rusanovskyy, Marta Karczewicz
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Patent number: 11729402Abstract: An image decoding method performed by a decoding apparatus according to the present document comprises the steps of: acquiring a flag indicating whether a picture header (PH) network abstraction layer (NAL) unit exists; acquiring a PH on the basis of the flag; and decoding a current picture related to the PH on the basis of the PH.Type: GrantFiled: April 4, 2022Date of Patent: August 15, 2023Assignee: LG Electronics Inc.Inventor: Hendry Hendry
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Patent number: 11722663Abstract: A method of partitioning in video coding for JVET, comprising representing a JVET coding tree unit as a root node in a quadtree plus binary tree (QTBT) structure that can have quadtree or binary partitioning of the root node and quadtree or binary trees branching from each of the leaf nodes. The partitioning at any depth can use asymmetric binary partitioning to split a node represented by a leaf node into two child nodes of unequal size, representing the two child nodes as leaf nodes in a binary tree branching from the parent leaf node and coding the child nodes represented by final leaf nodes of the binary tree with JVET, wherein further partitioning of child nodes split from leaf nodes via asymmetric binary partitioning is allowed recursively along the same branch in any order with symmetric partitioning.Type: GrantFiled: May 11, 2021Date of Patent: August 8, 2023Assignee: ARRIS Enterprises LLCInventors: Krit Panusopone, Seungwook Hong, Limin Wang
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Patent number: 11711537Abstract: The present disclosure provides methods for performing wrap-around motion compensation. The method can include receiving a first wrap-around motion compensation flag, wherein the second wrap-around motion compensation flag is associated with a picture; determining whether the first wrap-around motion compensation flag is enabled; in response to a determination that the first wrap-around motion compensation flag is enabled, receiving a wrap-around motion compensation offset, wherein the wrap-around motion compensation offset is associated with the picture; and performing wrap-around motion compensation on the picture according to the first wrap-around motion compensation flag and the wrap-around motion compensation offset.Type: GrantFiled: December 17, 2020Date of Patent: July 25, 2023Assignee: Alibaba Group Holding LimitedInventors: Jie Chen, Yan Ye, Ru-Ling Liao, Jiancong Luo
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Patent number: 11695954Abstract: A method for signalling an intra chroma prediction mode and a method for implementing the signalled intra chroma prediction mode, the intra chroma prediction mode taking an intropolation of previously predicted luma samples from neighboring blocks of video data to attain an intra chroma prediction of a current chroma prediction unit.Type: GrantFiled: November 3, 2021Date of Patent: July 4, 2023Assignee: LG Electronics Inc.Inventors: Jungsun Kim, Seungwook Park, Jaehyun Lim, Joonyoung Park, Younghee Choi, Jaewon Sung, Byeongmoon Jeon, Yongjoon Jeon
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Patent number: 11695926Abstract: An image decoding method is disclosed in the present specification. An image decoding method according to the present invention may comprise determining a prediction mode of a current block and performing prediction with respect to the current block on the basis of the determined prediction mode.Type: GrantFiled: September 20, 2019Date of Patent: July 4, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Jung Won Kang, Ha Hyun Lee, Sung Chang Lim, Jin Ho Lee, Hui Yong Kim
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Patent number: 11689742Abstract: 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: GrantFiled: April 2, 2021Date of Patent: June 27, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Jin Ho Lee, Hui Yong Kim, Sung Chang Lim, Jin Soo Choi, Jin Woong Kim
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Patent number: 11683358Abstract: A method disclosed herein provides for receiving, at a user device, a media stream including frames of a first resolution generated by a graphics-rendering application and utilizing one or more weight matrices pre-trained in association with the graphics-rendering application to locally upscale each received frame of the media stream at the user device to a second resolution greater than the first resolution. Local upscaling of the media stream may be performed “on the fly,” such as with respect to individual content streams (e.g., a game) or segments of content streams (e.g., a scene within a game).Type: GrantFiled: November 4, 2020Date of Patent: June 20, 2023Assignee: Microsoft Technology Licensing, LLCInventor: Perry Victor Lea
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Patent number: 11677971Abstract: Aspects of the disclosure provide a method and an apparatus including processing circuitry for video decoding. The processing circuitry can decode coding information of a transform block (TB) from a coded video bitstream. The coding information can indicate a transform skip in one direction for the TB. The processing circuitry can decode a sign value of a current transform coefficient in the TB based on a previously decoded sign value of a previous transform coefficient. The current transform coefficient and the previous transform coefficient can be in one of a same row and a same column in the TB. The one of the same row and the same column can be along the one direction of the transform skip. The processing circuitry can determine the current transform coefficient in the TB based on the decoded sign value of the current transform coefficient.Type: GrantFiled: June 4, 2021Date of Patent: June 13, 2023Assignee: Tencent America LLCInventors: Madhu Peringassery Krishnan, Xin Zhao, Shan Liu
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Patent number: 11670040Abstract: Systems and methods for rendering three-dimensional (3D) scenes having improved visual characteristics from a pair of 2D images having different viewpoints. The 3D scene is created by obtaining a first two-dimensional (2D) image of a scene object from a first viewpoint, obtaining a second 2D image of the scene object from a second viewpoint that is different than the first viewpoint, creating a depth map from the first and second 2D images, creating a 3D scene from the depth map and the first and second 2D images, detecting regions of the initial 3D scene with incomplete image information, reconstructing the detected regions of the 3D scene, determining replacement information and modify the reconstructed regions, and rendering the 3D scene with the modified reconstructed regions from a plurality of viewpoints.Type: GrantFiled: August 4, 2021Date of Patent: June 6, 2023Assignee: Snap Inc.Inventors: Nir Daube, Zachi Karni
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Patent number: 11665347Abstract: The present principles relate to a method and device. A method for encoding a residual block comprises: obtaining (500) a first coding mode relative to a first 2D transform when coding the residual blocks according to a coding mode relative to a first 2D transform is enabled; obtaining (510) a second coding mode relative to a second 2D transform when coding the residual blocks according to a coding mode relative to a second 2D transform is enabled; and encoding (530) the residual block according to either said first coding mode or said second coding mode or both; the method is characterized in that enabling or disabling (520) the coding of the residual block according to said second coding mode depends on said first coding mode. The present principles relate also to a method and device for encoding/decoding a picture.Type: GrantFiled: July 16, 2021Date of Patent: May 30, 2023Assignee: INTERDIGITAL VC HOLDINGS, INC.Inventors: Fabrice Urban, Tangi Poirier, Fabrice Leleannec
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Patent number: 11659177Abstract: A method of partitioning in video coding for JVET, comprising representing a JVET coding tree unit as a root node in a quadtree plus binary tree (QTBT) structure that can have quadtree or binary partitioning of the root node and quadtree or binary trees branching from each of the leaf nodes. The partitioning at any depth can use asymmetric binary partitioning to split a node represented by a leaf node into two child nodes of unequal size, representing the two child nodes as leaf nodes in a binary tree branching from the parent leaf node and coding the child nodes represented by final leaf nodes of the binary tree with JVET, wherein further partitioning of child nodes split from leaf nodes via asymmetric binary partitioning is allowed recursively along the same branch in any order with symmetric partitioning.Type: GrantFiled: May 11, 2021Date of Patent: May 23, 2023Assignee: ARRIS Enterprises LLCInventors: Krit Panusopone, Seungwook Hong, Limin Wang
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Patent number: 11659176Abstract: A method of partitioning in video coding for JVET, comprising representing a JVET coding tree unit as a root node in a quadtree plus binary tree (QTBT) structure that can have quadtree or binary partitioning of the root node and quadtree or binary trees branching from each of the leaf nodes. The partitioning at any depth can use asymmetric binary partitioning to split a node represented by a leaf node into two child nodes of unequal size, representing the two child nodes as leaf nodes in a binary tree branching from the parent leaf node and coding the child nodes represented by final leaf nodes of the binary tree with JVET, wherein further partitioning of child nodes split from leaf nodes via asymmetric binary partitioning is allowed recursively along the same branch in any order with symmetric partitioning.Type: GrantFiled: May 11, 2021Date of Patent: May 23, 2023Assignee: ARRIS Enterprises LLCInventors: Krit Panusopone, Seungwook Hong, Limin Wang
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Patent number: 11652992Abstract: A method of partitioning in video coding for JVET, comprising representing a JVET coding tree unit as a root node in a quadtree plus binary tree (QTBT) structure that can have quadtree or binary partitioning of the root node and quadtree or binary trees branching from each of the leaf nodes. The partitioning at any depth can use asymmetric binary partitioning to split a node represented by a leaf node into two child nodes of unequal size, representing the two child nodes as leaf nodes in a binary tree branching from the parent leaf node and coding the child nodes represented by final leaf nodes of the binary tree with JVET, wherein further partitioning of child nodes split from leaf nodes via asymmetric binary partitioning is allowed recursively along the same branch in any order with symmetric partitioning.Type: GrantFiled: May 11, 2021Date of Patent: May 16, 2023Assignee: ARRIS Enterprises LLCInventors: Krit Panusopone, Seungwook Hong, Limin Wang
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Patent number: 11652993Abstract: A method of partitioning in video coding for JVET, comprising representing a JVET coding tree unit as a root node in a quadtree plus binary tree (QTBT) structure that can have quadtree or binary partitioning of the root node and quadtree or binary trees branching from each of the leaf nodes. The partitioning at any depth can use asymmetric binary partitioning to split a node represented by a leaf node into two child nodes of unequal size, representing the two child nodes as leaf nodes in a binary tree branching from the parent leaf node and coding the child nodes represented by final leaf nodes of the binary tree with JVET, wherein further partitioning of child nodes split from leaf nodes via asymmetric binary partitioning is allowed recursively along the same branch in any order with symmetric partitioning.Type: GrantFiled: May 11, 2021Date of Patent: May 16, 2023Assignee: ARRIS Enterprises LLCInventors: Krit Panusopone, Seungwook Hong, Limin Wang
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Patent number: 11632557Abstract: A method for decoding a video performed by a decoding device according to the present document comprises: a step for receiving residual information for a current block; a step for parsing one sign flag for a current sub-block of the current block, wherein the one sign flag indicates whether all signs of non-zero residual coefficients of the current sub-block are the same; a step for deriving the non-zero residual coefficients on the basis of sign information for the non-zero residual coefficients when the value of the one sign flag is 1; a step for deriving residual samples on the basis of the non-zero residual coefficients; and a step for restoring a current picture on the basis of the residual samples.Type: GrantFiled: December 31, 2019Date of Patent: April 18, 2023Assignee: LG ELECTRONICS INC.Inventors: Sunmi Yoo, Jin Heo, Ling Li, Jangwon Choi, Jungah Choi, Seunghwan Kim, Junghak Nam
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Patent number: 11627318Abstract: Methods, systems and computer program products, for producing streams of image frames. Image frames in streaming video are segmented into background segments and instance segments. A background image frame containing the background segments is created. At least some of the instance segments are classified into movable objects of interest and movable objects of non-interest. During a background update time period, the background image frame is updated when a movable object of non-interest has moved to reveal a background area, to include the revealed background area in the background image frame. A foreground image containing the movable objects of interest is created. Blocks of pixels of the updated background and foreground image frames are encoded. A stream of encoded foreground image frames having a first frame rate is produced. A stream of encoded updated background image frames a second, lower frame rate is produced.Type: GrantFiled: November 10, 2021Date of Patent: April 11, 2023Assignee: Axis ABInventors: Niclas Danielsson, Xing Danielsson Fan
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Patent number: 11616987Abstract: Disclosed is an encoding/decoding method and apparatus related to adaptive deblocking filtering. There is provided an image decoding method performing adaptive filtering in inter-prediction, the method including: reconstructing, from a bitstream, an image signal including a reference block on which block matching is performed in inter-prediction of a current block to be encoded; obtaining, from the bitstream, a flag indicating whether the reference block exists within a current picture where the current block is positioned; reconstructing the current block by using the reference block; adaptively applying an in-loop filter for the reconstructed current block based on the obtained flag; and storing the current block to which the in-loop filter is or is not applied in a decoded picture buffer (DPB).Type: GrantFiled: June 13, 2016Date of Patent: March 28, 2023Assignee: Dolby Laboratories Licensing CorporationInventors: Je Chang Jeong, Ki Baek Kim
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Patent number: 11616963Abstract: Provided is an image decoding method including determining a plurality of coding units in a chroma image by hierarchically splitting the chroma image, based on a split shape mode of blocks in the chroma image of a current image, and decoding the current image, based on the plurality of coding units in the chroma image. In this regard, the determining of the plurality of coding units in the chroma image may include, when a size or an area of a chroma block from among a plurality of chroma blocks to be generated by splitting a current chroma block in the chroma image is equal to or smaller than a preset size or a preset area, not allowing splitting of the current chroma block based on a split shape mode of the current chroma block, and determining at least one coding unit included in the current chroma block.Type: GrantFiled: May 10, 2019Date of Patent: March 28, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Minwoo Park, Minsoo Park, Kiho Choi, Narae Choi, Woongil Choi, Chanyul Kim, Seungsoo Jeong, Anish Tamse, Yinji Piao
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Patent number: 11606580Abstract: A method for sample adaptive offset (SAO) filtering and SAO parameter signaling in a video encoder is provided that includes determining SAO parameters for largest coding units (LCUs) of a reconstructed picture, wherein the SAO parameters include an indicator of an SAO filter type and a plurality of SAO offsets, applying SAO filtering to the reconstructed picture according to the SAO parameters, and entropy encoding LCU specific SAO information for each LCU of the reconstructed picture in an encoded video bit stream, wherein the entropy encoded LCU specific SAO information for the LCUs is interleaved with entropy encoded data for the LCUs in the encoded video bit stream. Determining SAO parameters may include determining the LCU specific SAO information to be entropy encoded for each LCU according to an SAO prediction protocol.Type: GrantFiled: April 28, 2021Date of Patent: March 14, 2023Assignee: Texas Instruments IncorporatedInventors: Vivienne Sze, Madhukar Budagavi, Woo-Shik Kim, Do-Kyoung Kwon, Minhua Zhou
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Patent number: 11595644Abstract: Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes processing circuitry. For example, the processing circuitry determines a first combination from reconstructed samples of a first color component within a filter support region. Then, the processing circuitry determines, based on a mapping that associates offset values with combinations of possible reconstructed sample values, a first offset value that is associated with the first combination, and applies the first offset value on a to-be filtered sample of a second color component in the filter support region to determine a filtered sample of the second color component.Type: GrantFiled: April 26, 2021Date of Patent: February 28, 2023Assignee: TENCENT AMERICA LLCInventors: Yixin Du, Xin Zhao, Shan Liu
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Patent number: 11582461Abstract: A video encoding device for encoding video using inter prediction includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on a minimum inter-PU size (PA) and a CU size (PB) of the CU to be encoded. A video decoding device includes decoding control means for controlling an inter-PU partition of a CU to be decoded, based on the minimum inter-PU size (PA) and the size (PB) of the CU to be decoded.Type: GrantFiled: October 8, 2020Date of Patent: February 14, 2023Assignee: NEC CORPORATIONInventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki