Quantization Patents (Class 375/240.03)
  • Patent number: 12010360
    Abstract: This disclosure describes, in part, methods and techniques for recreating the outputting of content by an electronic device. For instance, system(s) may process (e.g., encode) first source data in order to generate second source data. The system(s) may then store the second source data in one or more databases and send a copy of the second source data to the electronic device. The electronic device may process (e.g., decode) the second source data in order to output content represented by the second source data. The electronic device may also generate event data representing events that occurred while processing the second source data. The system(s) may receive the event data from the electronic device and use the event data to process the second source data similar to the electronic device. This way, the system(s) are able to output the content similarly to how the electronic device output the content.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: June 11, 2024
    Assignee: Amazon Technologies, Inc.
    Inventors: Micheal Anthony Larkin, Mustafa Hakim, Doyle Albert Martin, Brian Fisher, Mickey Ottis Williams, Chris Predeek
  • Patent number: 12003774
    Abstract: An image decoding method according to the present document comprises the steps of: deriving transform coefficients through inverse quantization on the basis of quantized transform coefficients for a target block; deriving modified transform coefficients on the basis of an inverse reduced secondary transform (RST) for the transform coefficients; and generating, on the basis of an inverse primary transform for the modified transform coefficients, a restoration picture based on residual samples for the target block, wherein the modified transform coefficients derived according to the inverse RST are two-dimensionally arranged according to the order of a row priority direction or a column priority direction according to an intra prediction mode to be applied to the target block.
    Type: Grant
    Filed: May 17, 2023
    Date of Patent: June 4, 2024
    Assignee: LG Electronics Inc.
    Inventors: Moonmo Koo, Seunghwan Kim, Jaehyun Lim
  • Patent number: 12003773
    Abstract: A video decoding method according to the present document comprises a step of deriving a modified transform coefficient, and the step of deriving the transform coefficient may comprise the steps of: determining whether an LFNST can be applied to the height and width of a current block on the basis of the tree type and color format of the current block; parsing an LFNST index if the LFNST can be applied; and deriving the modified transform coefficient on the basis of the LFNST index and an LFNST matrix.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: June 4, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Moonmo Koo, Seunghwan Kim, Jaehyun Lim
  • Patent number: 12003730
    Abstract: A method for decoding video includes receiving quantized coefficients representative of a block of video representative of a plurality of pixels. The quantized coefficients are dequantized based upon a function of a remainder. The dequantized coefficients are inverse transformed to determine a decoded residue.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: June 4, 2024
    Assignee: DOLBY INTERNATIONAL AB
    Inventors: Louis J. Kerofsky, Kiran Misra, Christopher A. Segall
  • Patent number: 12003725
    Abstract: A method, computer program, and computer system is provided for encoding or decoding video data. Video data including a chroma component and a luma component is received. One or more contexts for entropy coding chroma intra prediction modes are identified based on a co-located luma block at one or more pre-defined positions. The video data is decoded based on the identified contexts.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: June 4, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Liang Zhao, Xin Zhao, Shan Liu
  • Patent number: 11997265
    Abstract: According to the disclosure of the present document, filter length can be determined on the basis of the distance between block boundaries in a deblocking filtering process, the deblocking filtering can be performed on the basis of the filter length, and thereby, the picture quality of the image/video can be enhanced, and the effects of improved subjective picture quality relative to complexity and simplification of H/W design can be obtained.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: May 28, 2024
    Assignee: LG Electronics Inc.
    Inventor: Hyeongmoon Jang
  • Patent number: 11995806
    Abstract: A method for geometrically correcting a distorted input frame and generating an undistorted output frame includes capturing and storing an input frame in an external memory, allocating an output frame with an output frame size and dividing the output frame into output blocks, computing a size of the input blocks in the input image corresponding to each output blocks, checking if the size of the input blocks is less than the size of the internal memory and if not dividing until the required input block size of divided sub blocks is less than the size of the internal memory, programming an apparatus with input parameters, fetching the input blocks into an internal memory, processing each of the divided sub blocks sequentially and processing the next output block in step until all the output blocks are processed; and composing the output frame for each of the blocks in the output frame.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: May 28, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Rajasekhar Reddy Allu, Niraj Nandan, Mihir Narendra Mody, Gang Hua, Brian Okchon Chae, Shashank Dabral, Hetul Sanghvi, Vikram Vijayanbabu Appia, Sujith Shivalingappa
  • Patent number: 11997288
    Abstract: A method for encoding a multi-view frame in a video encoder is provided that includes computing a depth quality sensitivity measure for a multi-view coding block in the multi-view frame, computing a depth-based perceptual quantization scale for a 2D coding block of the multi-view coding block, wherein the depth-based perceptual quantization scale is based on the depth quality sensitive measure and a base quantization scale for the 2D frame including the 2D coding block, and encoding the 2D coding block using the depth-based perceptual quantization scale.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: May 28, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Do-Kyoung Kwon, Madhukar Budagavi, Ming-Jun Chen
  • Patent number: 11997277
    Abstract: The application relates to refined quantization steps in video coding. A method for video processing includes: determining, during a conversion between a current video block and a bitstream representation of a video including the current video block, two-level quantization parameters comprising a first level quantization parameter QP1 and a second level quantization parameter QP2 for the current video block; and performing, at least based on the two-level quantization parameters, a first level quantization and/or a second level quantization during the conversion, wherein the two-level quantization parameters correspond to different quantization precisions respectively.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: May 28, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11997276
    Abstract: An image decoding apparatus comprises a decoder which decodes data indicating a plurality of values corresponding to a part of a quantization matrix; a generator which derives the plurality of values from the data and generates the matrix; and an inverse quantizing unit which performs the inverse quantizing on an object block using the matrix, wherein, if width or height of the matrix is larger than or equal to a predetermined size, the generating unit generates the matrix by associating a first value among the plurality of values with a first element corresponding to DC component in the matrix, associating a second value with a second element adjacent to the first element, and, for the elements other than the first and second elements, associating each of one or more values with a plurality of elements of the matrix.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: May 28, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masato Shima
  • Patent number: 11997278
    Abstract: A method for video decoding is provided. The method may be applied in a decoder and includes: receiving a video bitstream comprising a quantization parameter and a quantized level; deriving a scale value by scaling the quantization parameter by a scale factor; determining a plurality of parameters associated with a coding unit (CU); obtaining a plurality of bit-shifts by bit-shifting the plurality of parameters; and obtaining a plurality of coefficients associated with the CU based on the quantized level, the scale value, and the plurality of bit-shifts.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: May 28, 2024
    Assignee: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Hong-Jheng Jhu, Xiaoyu Xiu, Xianglin Wang, Yi-Wen Chen, Tsung-Chuan Ma, Bing Yu
  • Patent number: 11991264
    Abstract: A transmission method for transmitting measurements is taken by a fluid meter during successive measurement periods, each subdivided into successive time intervals. The measurements comprise first measurements, each representative of a quantity of fluid distributed during a respective one of the time intervals. The transmission method includes, for each measurement period, the step of producing and then transmitting at least one measurement frame such that: when the number of first measurements that are equal to zero is strictly less than a predetermined number during said measurement period, then the measurement frame is a normal measurement frame; otherwise the measurement frame is a compact measurement frame that, when there is at least one first measurement that is not equal to zero, comprises both preliminary data comprising identification data for identifying active time intervals and also compact first measurement data comprising only said non-zero first measurements ordered in a predefined order.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: May 21, 2024
    Assignee: SAGEMCOM ENERGY & TELECOM SAS
    Inventor: Henri Teboulle
  • Patent number: 11982627
    Abstract: Semi-automated quantitative phenotype analysis of organisms, such as plant organisms, bacterial organisms, and the like. An imaging system, image capture specifications, a semi-automated quantitative image analysis process, and automated batch processing of acquired images that enables completely quantitative experimental readouts that produces data rapidly and objectively.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: May 14, 2024
    Assignee: Monsanto Technology LLC
    Inventors: Alberto B. Iandolino, Andrew Walter Mroczka, Rick C. Taytroe
  • Patent number: 11979555
    Abstract: Disclosed herein is a method of decoding an image including deriving intra prediction mode of a current block using an intra prediction mode of a neighbor block adjacent to the current block, constructing a reference sample of the current block, and performing intra prediction with respect to the current block using the intra prediction mode of the current block and the reference sample. The deriving of the intra prediction mode of the current block includes constructing a most probable mode (MPM) list based on whether the intra prediction mode of the current block is a Planar mode.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: May 7, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Ho Lee, Jung Won Kang, Ha Hyun Lee, Sung Chang Lim, Hui Yong Kim
  • Patent number: 11979552
    Abstract: A method for decoding an image according to the present document includes obtaining prediction mode information and residual related information from a bitstream, deriving prediction samples of a current block by performing prediction based on the prediction mode information, deriving residual samples of the current block based on the residual related information, and generating reconstruction samples of the current block based on the prediction samples and the residual samples, and the residual related information includes a transform skip flag based on a size of the current block and a maximum transform skip size, the transform skip flag represents whether a transform skip is applied to the current block, and information about the maximum transform skip size is obtained from the bitstream.
    Type: Grant
    Filed: May 15, 2023
    Date of Patent: May 7, 2024
    Assignee: Rosedale Dynamics LLC
    Inventors: Sunmi Yoo, Jungah Choi, Jangwon Choi, Seunghwan Kim
  • Patent number: 11973958
    Abstract: Methods and apparatus of video coding using sub-block based affine mode are disclosed. According to this method, control-point motion vectors (MVs) associated with the affine mode are determined for a block. A sub-block MV is derived for a target sub-block of the block from the control-point MVs for the block. A prediction offset is determined for a target pixel of the target sub-block using information comprising a pixel MV offset from the sub-block MV for the target pixel according to Prediction Refinement with Optical Flow (PROF). The target pixel of the target sub-block is encoded or decoded using a modified predictor. The modified prediction is generated by clipping the prediction offset to a target range and combining the clipped prediction offset with an original predictor.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: April 30, 2024
    Assignee: HFI INNOVATION INC.
    Inventors: Tzu-Der Chuang, Ching-Yeh Chen, Zhi-Yi Lin
  • Patent number: 11973988
    Abstract: Decoder for decoding a picture from a data stream, configured to check whether a plurality of coding parameters, which are contained in the data stream, relate to a predetermined portion of the picture and control a prediction residual transform mode and a quantization accuracy with respect to the predetermined portion, are indicative of a coding parameter setting corresponding to a lossless prediction residual coding. Responsive to the plurality of coding parameters being indicative of the coding parameter setting corresponding to the lossless prediction residual coding, the decoder is configured to set one or more predetermined coding options relating to one or more tools of the decoder for processing a prediction residual corrected predictive reconstruction with respect to the predetermined portion so that the one or more tools are disabled with respect to the predetermined portion.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: April 30, 2024
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Christian Helmrich, Benjamin Bross, Tung Hoang Nguyen, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
  • Patent number: 11973982
    Abstract: A method of encoding a digital video, comprising receiving a high dynamic range (HDR) master of a video, a reference standard dynamic range (SDR) master of the video, and target SDR display properties at an encoder, finding a color volume transform that converts HDR values from the HDR master into SDR values that, when converted for display on the target SDR display, are substantially similar to SDR values in the reference SDR master, converting HDR values from the HDR master into SDR values using the color volume transform, generating metadata items that identifies the color volume transform to decoders, and encoding the SDR values into a bitstream.
    Type: Grant
    Filed: January 30, 2023
    Date of Patent: April 30, 2024
    Assignee: ARRIS Enterprises LLC
    Inventor: Koohyar Minoo
  • Patent number: 11967119
    Abstract: The present disclosure relates to systems and methods for coding. The methods may include receiving at least two contexts, for each of the at least two contexts, obtaining at least one coding parameter corresponding to the context from at least one lookup table, determining a probability interval value corresponding to the context based on a previous probability interval value and the at least one coding parameter, determining a normalized probability interval value corresponding to the context by performing a normalization operation on the probability interval value, determining a probability interval lower limit corresponding to the context based on a previous probability interval lower limit and the at least one coding parameter, determining a normalized probability interval lower limit corresponding to the context by performing the normalization operation on the probability interval lower limit, and outputting at least one byte based on the normalized probability interval lower limit.
    Type: Grant
    Filed: December 12, 2021
    Date of Patent: April 23, 2024
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Pan Yu, Zhuqing Zhu, Qi Chen, Wei Fang, Yinchang Yang
  • Patent number: 11968398
    Abstract: The present disclosure provides a method of reconstructing a video signal based on a reduced secondary transform, which includes: obtaining a secondary transform index from the video signal; deriving a secondary transform corresponding to the secondary transform index, wherein the secondary transform represents a reduced secondary transform, and the reduced secondary transform represents a transform outputting L (L<N) transform coefficient data (L×1 transform coefficient vectors) based on inputted N residual data (N×1 residual vectors); obtaining a transform coefficient block by performing an entropy decoding and a dequantization for a current block (N×N); performing an inverse secondary transform for the transform coefficient block using the reduced secondary transform; performing an inverse primary transform for a block which the inverse secondary transform is applied to; and reconstructing the current block using a block which the inverse primary transform is applied to.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: April 23, 2024
    Assignee: LG Electronics Inc.
    Inventors: Moonmo Koo, Mehdi Salehifar, Seunghwan Kim, Jaehyun Lim
  • Patent number: 11968365
    Abstract: Aspects of the disclosure provide method and apparatus for video coding. In some examples, an apparatus includes receiving circuitry and processing circuitry. The processing circuitry decodes, from a coded video bitstream, a syntax element for an adjusted version of an initial quantization parameter (QP) value at a picture level for a picture. The adjusted version is in a range with an upper boundary that is changed with a maximum QP value. Then, the processing circuitry determines the initial QP value of a segment (such as a slice, a tile, a group of tiles and the like) in the picture based on the syntax element and determines a QP value for a block in the segment according to the initial QP value of the segment and adjustments associated with the block. Then, the processing circuitry performs an inverse quantization on quantized data of the block according to the determined QP value.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: April 23, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Xiang Li, Xiaozhong Xu, Shan Liu
  • Patent number: 11962781
    Abstract: Classifying video for encoding optimization may include computing a content complexity score of a video, the content complexity score indicating a measure of how detailed the video is in terms of spatial and temporal information, categorizing the video into one of a plurality of buckets according to the content complexity score, each bucket representing a category of video content having a different range of content complexity scores and being associated with a ladder specific to the range, and encoding the video according to the ladder of the one of the plurality of buckets into which the video is categorized.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: April 16, 2024
    Assignee: SSIMWAVE INC.
    Inventors: Kai Zeng, Kalyan Goswami, Ahmed Badr
  • Patent number: 11961468
    Abstract: A method for compensating for transistor aging in a display device is presented. The method entails dividing pixels into a plurality of groups including a first group, the first group including Z pixels wherein Z>1, sampling a pixel current for each pixel in a subset of pixels in the first group, the subset including M pixels wherein 1?M?Z, determining an ErrorM using the sampled pixel current for the M pixels and a predefined reference current, and adjusting an input voltage for a transistor in more than one of the Z pixels based on the ErrorM. The adjusting of the input voltage may include generating a modified voltage Vd, wherein Vd=A*Vin+B, and each of A and B is determined using ?M sign(Errorm).
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: April 16, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gaurav Malhotra, Anup Jose, Amir Amirkhany
  • Patent number: 11962806
    Abstract: A decoding unit decodes data corresponding to an N×M array of quantized coefficients from a bit stream. An inverse quantization unit derives orthogonal transform coefficients from the N×M array of quantized coefficients by using at least a quantization matrix. An inverse orthogonal transform unit performs inverse orthogonal transform on the orthogonal transform coefficients generated by the inverse quantization unit to generate prediction residuals corresponding to a block of a P×Q array of pixels. An inverse quantization unit derives the orthogonal transform coefficients by using at least a quantization matrix of an N×M array of elements, and the inverse orthogonal transform unit generates prediction residuals for the P×Q array of pixels having a size larger than the N×M array.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: April 16, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masato Shima
  • Patent number: 11962774
    Abstract: A method for decoding a video according to the present invention may comprise: deriving a spatial merge candidate for a current block, generating a merge candidate list for the current block based on the spatial merge candidate, obtaining motion information for the current block based on the merge candidate list, and performing motion compensation for the current block based on the motion information. Herein, if the current block does not have a pre-defined shape or a size equal to or greater than a pre-defined size, the spatial merge candidate of the current block may be derived based on a block which have the pre-defined shape or a size equal to or greater than the pre-defined size, the block including the current block.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: April 16, 2024
    Assignee: KT CORPORATION
    Inventor: Bae Keun Lee
  • Patent number: 11949867
    Abstract: An image decoding apparatus comprises a decoder which decodes data indicating a plurality of values corresponding to a part of a quantization matrix; a generator which derives the plurality of values from the data and generates the matrix; and an inverse quantizing unit which performs the inverse quantizing on an object block using the matrix, wherein, if width or height of the matrix is larger than or equal to a predetermined size, the generating unit generates the matrix by associating a first value among the plurality of values with a first element corresponding to DC component in the matrix, associating a second value with a second element adjacent to the first element, and, for the elements other than the first and second elements, associating each of one or more values with a plurality of elements of the matrix.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: April 2, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masato Shima
  • Patent number: 11949726
    Abstract: According to an embodiment, a method of selecting a Rice parameter for encoding a video bitstream using at least one processor includes obtaining an absolute level corresponding to a current transform block; determining whether transform skip is enabled; generating a lookup variable based on the absolute level and the determination of whether the transform skip is enabled; obtaining the Rice parameter from a lookup table based on the lookup variable; and encoding a residual subblock based on the Rice parameter.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: April 2, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Cheung Auyeung, Xiang Li, Shan Liu
  • Patent number: 11948090
    Abstract: In the present disclosure, a method for compressing a feature map is provided, where the feature map is generated by passing a first input through a deep neural network (DNN). A respective optimal index order and a respective optimal unifying method are determined for each of super-blocks that are partitioned from the feature map. A selective structured unification (SSU) layer is subsequently determined based on the respective optimal index order and the respective optimal unifying method for each of the super-blocks. The SSU layer is added to the DNN to form an updated DNN, and is configured to perform unification operations on the feature map. Further, a first estimated output is determined, where the first estimated output is generated by passing the first input through the updated DNN.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: April 2, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Wei Jiang, Wei Wang, Shan Liu
  • Patent number: 11943457
    Abstract: There is provided an information processing apparatus, an image processing apparatus, an encoding device, a decoding device, an information processing method, and a program that facilitate scalable decoding of attribute information. Regarding the attribute information about a point cloud representing a three-dimensional object, a process of classifying the respective points of the point cloud into prediction points that are the points at which difference values between the attribute information and predicted values are left, and reference points that are the points at which the attribute information is referred to during derivation of the predicted values is recursively repeated on the reference points, so that the attribute information is hierarchized.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: March 26, 2024
    Assignee: SONY GROUP CORPORATION
    Inventors: Tsuyoshi Kato, Satoru Kuma, Ohji Nakagami, Hiroyuki Yasuda, Koji Yano
  • Patent number: 11943450
    Abstract: A method for estimating blockiness in a video frame of transform-based video encoding includes: obtaining a bitstream of a transform coded video signal, the signal being partitioned into video frames and all operations being performed on a per frame basis, wherein coefficients constituting transforms encoded in the bitstream of the video frames are read; averaging the coefficients of the transforms encoded in the bitstream into one averaged transform matrix per transform block size i; generating or making available one weighting matrix per averaged transform of block size i; computing intermediate weighted average transform matrices; processing all members of each weighted and averaged transform matrix into a single value per transform of block size i, to obtain intermediate signals; and computing a single value by weighting values of the intermediate signals according to an area in the respective video frame and adding up the weighted values of the intermediate signals.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: March 26, 2024
    Assignee: DEUTSCHE TELEKOM AG
    Inventors: Peter List, Rakesh Ramachandra, Werner Robitza, Alexander Raake, Steve Goering, Ulf Wuestenhagen, Bernhard Feiten
  • Patent number: 11936859
    Abstract: Methods and apparatuses for video processing. In one aspect, filtering is applied after applying a set of offset values to one or more coefficients. The application of an offset value may be based on a determination as to whether the coefficient meets a threshold value.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: March 19, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Per Wennersten, Jacob Ström, Jack Enhorn, Du Liu
  • Patent number: 11936853
    Abstract: The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: March 19, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Won Kang, Sung Chang Lim, Hyun Suk Ko, Ha Hyun Lee, Jin Ho Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jin Soo Choi
  • Patent number: 11936866
    Abstract: A method for lossy video encoding, transmission and decoding, the method comprising the steps of: receiving an input video at a first computer system; encoding an input frame of the input video to produce a latent representation; producing a quantized latent; producing a hyper-latent representation; producing a quantized hyper-latent; entropy encoding the quantized latent; transmitting the entropy encoded quantized latent and the quantized hyper-latent to a second computer system; decoding the quantized hyper-latent to produce a set of context variables, wherein the set of context variables comprise a temporal context variable; entropy decoding the entropy encoded quantized latent using the set of context variables to obtain an output quantized latent; and decoding the output quantized latent to produce an output frame, wherein the output frame is an approximation of the input frame.
    Type: Grant
    Filed: August 30, 2023
    Date of Patent: March 19, 2024
    Assignee: DEEP RENDER LTD.
    Inventors: Chris Finlay, Christian Besenbruch, Jan Xu, Bilal Abbasi, Christian Etmann, Arsalan Zafar, Sebastjan Cizel, Vira Koshkina
  • Patent number: 11930203
    Abstract: An image decoding method includes: dividing a current block into sub-blocks; deriving, for each sub-block, one or more prediction information candidates; obtaining an index; and decoding the current block using the prediction information candidate selected by the index.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: March 12, 2024
    Assignee: SUN PATENT TRUST
    Inventors: Toshiyasu Sugio, Takahiro Nishi, Youji Shibahara, Kyoko Tanikawa, Hisao Sasai, Toru Matsunobu, Kengo Terada
  • Patent number: 11924436
    Abstract: Classifying video for encoding optimization may include computing a content complexity score of a video, the content complexity score indicating a measure of how detailed the video is in terms of spatial and temporal information, categorizing the video into one of a plurality of buckets according to the content complexity score, each bucket representing a category of video content having a different range of content complexity scores and being associated with a ladder specific to the range, and encoding the video according to the ladder of the one of the plurality of buckets into which the video is categorized.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: March 5, 2024
    Assignee: SSIMWAVE INC.
    Inventors: Kai Zeng, Kalyan Goswami, Ahmed Badr
  • Patent number: 11924469
    Abstract: Devices, systems and methods for digital video process are described. An exemplary method for video processing includes performing a conversion between a current video block of a video and a coded representation of the video, wherein the performing of the conversion includes determining, based on a width (W) and/or a height (H) of the current video block, an applicability of a secondary transform tool to the current video block, and wherein the secondary transform tool includes applying, during encoding, a forward secondary transform to an output of a forward primary transform applied to a residual of a video block prior to quantization, or applying, during decoding, an inverse secondary transform to an output of dequantization of the video block before applying an inverse primary transform.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: March 5, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11924450
    Abstract: A physical adapter receives a data stream comprising data usable to derive a rendition of a signal at a first level of quality and reconstruction data produced by processing a rendition of the signal at a second, higher level of quality and indicating how to reconstruct the rendition at the second level of quality using the rendition at the first level of quality. The physical adapter reconstructs the rendition at the second level of quality and outputs the reconstructed rendition and/or data derived from the reconstructed rendition. The physical adapter is connectable to signal processing equipment that outputs the data usable to derive the rendition at the first level of quality. The physical adapter increases the quality of the rendition of the signal relative to the first level of quality and enhances the functionality of the signal processing equipment.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: March 5, 2024
    Assignee: V-NOVA INTERNATIONAL LIMITED
    Inventor: Richard Clucas
  • Patent number: 11917154
    Abstract: End-to-end neural image compression using deep reinforcement learning (DRL) is performed by at least one processor and includes encoding an input, generating encoded representations of the input, generating a set of quantization keys using a first neural network, based on a set of previous quantization states, wherein each quantization key in the set of quantization keys and each previous quantization state in the set of previous quantization states correspond to the encoded representations of the input, generating a set of dequantized numbers representing dequantized representations of the encoded representations of the input, based on the set of quantization keys, using a second neural network, and generating a reconstructed output, based on the set of dequantized numbers.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: February 27, 2024
    Assignee: TENCENT AMERICA LLC
    Inventors: Wei Jiang, Wei Wang, Sheng Lin, Shan Liu
  • Patent number: 11909979
    Abstract: A method for colour component prediction, an encoder, a decoder and a storage medium are provided. The method includes that: prediction parameters of a current block are determined, the prediction parameters including a prediction mode parameter and a size parameter of the current block; when the prediction mode parameter indicates that a Matrix-based Intra Prediction (MIP) mode is adopted to determine an intra prediction value of the current block, an MIP weight matrix of the current block, a shift factor of the current block and an MIP input sample matrix of the current block are determined; and the intra prediction value of the current block is determined according to the MIP weight matrix, the shift factor and the MIP input sample matrix.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: February 20, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Junyan Huo, Yanzhuo Ma, Wei Zhang
  • Patent number: 11909974
    Abstract: A video coding system uses a value of a chroma quantization parameter table to quantize or de-quantize chroma values of a block of the video, the chroma quantization parameter table being directly coded in a set of parameters at the picture level or at the sequence level of the coded video stream. A corresponding encoding method, encoding device, decoding method, decoding device, and non-transitory readable medium are proposed.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: February 20, 2024
    Assignee: InterDigital VC Holdings, Inc.
    Inventors: Fabrice Leleannec, Franck Galpin, Tangi Poirier, Edouard Francois
  • Patent number: 11910020
    Abstract: A video processing method is provided, including: performing a conversion between a coded representation of a video including one or more video regions and the video, wherein the coded representation includes reshaping model information applicable for in-loop reshaping (ILR) of some of the one or more video regions, wherein the reshaping model information provides information for a reconstruction of a video unit of a video region based on a representation in a first domain and a second domain and/or scaling chroma residue of a chroma video unit, wherein the reshaping model information includes a parameter set that includes a first syntax element that derives a number of bits used to represent a second syntax element specifying an absolute delta codeword value from a corresponding bin, and wherein the first syntax element has a value smaller than a threshold.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: February 20, 2024
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD, BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11902547
    Abstract: A two-pass encoding operation is implemented to encode one or more gaming frames into a game stream. The two-pass encoding operation includes a first encoding pass performed on a current frame. As a result of the first encoding pass, an estimated complexity for the current frame is determined. The resulting estimated complexity is then modulated according to a quality difference between reference frames used during the first pass encoding and a subsequent second pass encoding. Based on the modulated complexity, a quantization parameter is determined for the current frame that is then used to perform a second pass encoding on the current frame, resulting in an encoded frame. This encoded frame is then transmitted as part of a stream to a client system.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: February 13, 2024
    Assignee: GOOGLE LLC
    Inventors: Danny Hong, Ramachandra Tahasildar, Alex Sukhanov
  • Patent number: 11902592
    Abstract: The present disclosure provides a method for decoding a video signal, the method comprising the steps of: decoding, from a bitstream, a syntax element indicating the last non-zero region, wherein the last non-zero region represents a region including the last non-zero transform coefficient in a scan order; splitting a current block into multiple sub-regions; and based on the syntax element, determining the last non-zero region of the current block among the split sub-regions.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: February 13, 2024
    Assignee: LG Electronics Inc.
    Inventors: Moonmo Koo, Seunghwan Kim
  • Patent number: 11889081
    Abstract: A coding method and a decoding method for decoding a coded data stream representative of at least one image that is split into blocks. For at least one current block of the image, an item of information indicating a coding mode of the current block is decoded from the data stream. When the coding mode of the current block corresponds to a first coding mode, the current block is decoded using a first determined quantization step to dequantize, in the transform domain, a prediction residue associated with the current block. When the coding mode of the current block corresponds to a second coding mode, the current block is decoded using a second determined quantization step to dequantize, in the spatial domain, a prediction residue associated with the current block. The first quantization step and the second quantization step are determined according to the same quantization parameter.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: January 30, 2024
    Assignee: ORANGE
    Inventors: Felix Henry, Mohsen Abdoli
  • Patent number: 11889053
    Abstract: The bit rate for encoding a signal is controlled. The signal is encoded using at least two distinct encoding algorithms. An overall bit rate is allocated to at least two components of the signal. A first component of the signal is to be encoded using a first encoding algorithm. A second component of the signal is to be encoded using a second encoding algorithm.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: January 30, 2024
    Inventors: Fabio Murra, Ivan Damnjanovic
  • Patent number: 11889080
    Abstract: Techniques and systems for reconstructing a video signal, which include: obtaining a transform coefficient block by performing an entropy decoding and a dequantization for a current block; deriving a secondary transform corresponding to a specific area in the transform coefficient block, wherein the specific area represents an area including a top-left block of the transform coefficient block; performing an inverse secondary transform for each of subblocks within the specific area using the secondary transform; performing an inverse primary transform for a block which the inverse secondary transform is applied to; and reconstructing the current block using a block which the primary inverse transform is applied to.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: January 30, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Moonmo Koo, Mehdi Salehifar, Seunghwan Kim, Jaehyun Lim
  • Patent number: 11889031
    Abstract: An encoding device encodes each encoding-target block.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: January 30, 2024
    Assignee: NIPPON HOSO KYOKAI
    Inventors: Shunsuke Iwamura, Shimpei Nemoto, Atsuro Ichigaya
  • Patent number: 11887342
    Abstract: The present disclosure relates to a method of encoding a three-dimensional image including a point cloud. According to an embodiment of the present disclosure, a method of encoding a three-dimensional image may include determining a spatial area in a three-dimensional space represented by the point cloud, projecting, onto a two-dimensional plane, a plurality of points included in the point cloud to generate a plurality of patches, determining at least one patch corresponding to the determined spatial area, down-sampling at least one patch according to a predefined rule, generating a two-dimensional image by packing the at least one down-sampled patch and the plurality of patches corresponding to areas other than the determined spatial area, and generating and outputting a bitstream including data in which the two-dimensional image is compressed and information related to the down-sampling performed to generate the two-dimensional image.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: January 30, 2024
    Assignees: Samsung Electronics Co., Ltd., UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Sungryeul Rhyu, Jiheon Im, Junsik Kim, Kyuheon Kim, Youngho Oh, Jihwan Woo
  • Patent number: 11889114
    Abstract: A three-dimensional data encoding method uses a first encoding scheme and a second encoding scheme different from the first encoding scheme, and includes: (i) transforming a first quantization parameter to a first scale value or (ii) transforming the first scale value to the first quantization parameter, based on a first table indicating a correspondence between values of the first quantization parameter and values of the first scale value and being shared between the first encoding scheme and the second encoding scheme; performing encoding including a first quantization process to generate encoded attribute information, the first quantization process being a process of dividing, by the first scale value, each of first coefficient values based on items of attribute information of three-dimensional points included in point cloud data; and generating a bitstream including the encoded attribute information and the first quantization parameter.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: January 30, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Noritaka Iguchi, Toshiyasu Sugio, Chung Dean Han, Pongsak Lasang
  • Patent number: 11871033
    Abstract: Devices and methods of directional intra prediction for chroma component of a picture are provided. The method includes obtaining an initial intra prediction mode of the chroma component, and deriving a chroma intra prediction mode (intraPredModeC) from a look up table (LUT) by using the initial intra prediction mode of the chroma component. The chroma component has different subsampling ratios in horizontal and vertical directions. The method further includes performing wide-angle mapping on the chroma intra prediction mode (intraPredModeC) to obtain a modified intraPredModeC; obtaining an angle parameter for the chroma component based on the modified intraPredModeC; and obtaining predicted samples of the chroma component based on the angle parameter. The method provides the minimum number of entries in the LUT that is used to determine chroma intra prediction mode from the initial chroma intra prediction mode.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: January 9, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Alexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy, Jianle Chen