Predictive Patents (Class 375/240.12)
  • Patent number: 11122297
    Abstract: A method for encoding a block of a frame. The method includes receiving the block that is in the spatial domain; selecting, based on a border that crosses the block, a set of basis functions for transforming the block to a transform domain; transforming the block using the set of basis functions to obtain a transform block; encoding, in a compressed bitstream, an indication of the set of basis functions; and encoding, in the compressed bitstream, the transform block.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: September 14, 2021
    Assignee: GOOGLE LLC
    Inventors: Thomas Fischbacher, Lode Vandevenne
  • Patent number: 11115682
    Abstract: A previously encoded or reconstructed version of a neighborhood of a predetermined block to be predicted is exploited so as to result into a more efficient predictive coding of the prediction block. In particular, a spectral decomposition of a region composed of this neighborhood and a first version of a predicted filling of the predetermined block results into a first spectrum which is subject to noise reduction and the thus resulting second spectrum may be subject to a spectral composition, thereby resulting in a modified version of this region including a second version of the predicted filling of the predetermined block. Owing to the exploitation of the already processed, i.e. encoded/reconstructed, neighborhood of the predetermined block, the second version of the predicted filling of the predetermined block tends to improve the coding efficiency.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: September 7, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Jonathan Pfaff, Martin Winken, Christian Rudat, Heiko Schwarz, Thomas Wiegand, Detlev Marpe
  • Patent number: 11115655
    Abstract: A method for video processing is provided. The method includes determining, for a conversion between a current video block of a video that is a chroma block and a coded representation of the video, parameters of cross-component linear model (CCLM) prediction mode based on chroma samples that are selected based on W available above-neighboring samples, W being an integer; and performing the conversion based on the determining.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: September 7, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Kai Zhang, Li Zhang, Hongbin Liu, Jizheng Xu, Yue Wang
  • Patent number: 11115668
    Abstract: This application relates to video encoding and decoding, and specifically to tools and techniques for using and providing supplemental enhancement information in bitstreams. Among other things, the detailed description presents innovations for bitstreams having supplemental enhancement information (SEI). In particular embodiments, the SEI message includes picture source data (e.g., data indicating whether the associated picture is a progressive scan picture or an interlaced scan picture and/or data indicating whether the associated picture is a duplicate picture). The SEI message can also express a confidence level of the encoder's relative confidence in the accuracy of this picture source data. A decoder can use the confidence level indication to determine whether the decoder should separately identify the picture as progressive or interlaced and/or a duplicate picture or honor the picture source scanning information in the SEI as it is.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: September 7, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, Yongjun Wu
  • Patent number: 11115670
    Abstract: The present invention relates to specification of a tile capable of being independently processed to process a certain area at high speed in encoding and decoding of tiles resulting from division of an image in hierarchical coding of the image. An image encoding apparatus that performs the hierarchical coding of an input image with multiple layers includes an acquiring unit and an encoding unit. The acquiring unit acquires a first image generated from the input image and a second image having resolution different from that of the first image. In the encoding of a first area in the first image acquired by the acquiring unit, the encoding unit performs the encoding using a second area existing at the relatively same position as that of the first area in the first image in the second image as a reference image.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: September 7, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuru Maeda, Masato Shima
  • Patent number: 11115660
    Abstract: A methods and apparatus for block partition in video encoding and decoding are disclosed. According to one method, a current data unit is partitioned into initial blocks using inferred splitting without split-syntax signalling. The initial blocks comprises multiple initial luma blocks and multiple initial chroma blocks, and size of the initial luma block is M×N, M and N are positive integers and the current data unit is larger than M×N for the luma component. A partition structure is determined for partitioning each initial luma block and each initial chroma block into one or more luma CUs (coding units) and one or more chroma CUs respectively. The luma syntaxes and the chroma syntaxes associated with one initial block in the current data unit are signalled or parsed, and then the luma syntaxes and the chroma syntaxes associated with one next initial block in the current data unit are signalled or parsed.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 7, 2021
    Assignee: MEDIATEK INC.
    Inventors: Tzu-Der Chuang, Ching-Yeh Chen, Kung-Nien Yang, Chun-Chia Chen
  • Patent number: 11115657
    Abstract: A method of video processing includes maintaining tables, wherein each table includes a set of motion candidates and each motion candidate is associated with corresponding motion information; and performing a conversion between a first video block and a bitstream representation of a video including the first video block based on at least some of tables, the performing including checking motion candidates in a table in an order defined in a rule until a checking termination criteria is met.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: September 7, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11115681
    Abstract: Hybrid video decoder supporting intermediate view synthesis of an intermediate view video from a first- and a second- view video which are predictively coded into a multi-view data signal with frames of the second-view video being spatially subdivided into sub-regions and the multi-view data signal having a prediction mode is provided, having: an extractor configured to respectively extract, from the multi-view data signal, for sub-regions of the frames of the second-view video, a disparity vector and a prediction residual; a predictive reconstructor configured to reconstruct the sub-regions of the frames of the second-view video, by generating a prediction from a reconstructed version of a portion of frames of the first-view video using the disparity vectors and a prediction residual for the respective sub-regions; and an intermediate view synthesizer configured to reconstruct first portions of the intermediate view video.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: September 7, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Thomas Wiegand, Karsten Mueller, Philipp Merkle
  • Patent number: 11115673
    Abstract: An image encoder for outputting a bitstream by encoding an input image includes a predictive block, a machine learning based prediction enhancement (MLBE) block, and a subtractor. The predictive block is configured to generate a prediction block using data of a previous input block. The MLBE block is configured to transform the prediction block into an enhanced prediction block by applying a machine learning technique to the prediction block. The subtractor is configured to generate a residual block by subtracting pixel data of the enhanced prediction block from pixel data of a current input block.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 7, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jungyeop Yang
  • Patent number: 11109036
    Abstract: Innovations in encoder-side options for intra block copy (“BC”) prediction mode facilitate intra BC prediction that is more effective in terms of rate-distortion performance and/or computational efficiency of encoding. For example, some of the innovations relate to concurrently performing block vector (“BV”) estimation and making block splitting decisions for a block. Other innovations relate to selectively merging blocks into a larger block during BV estimation.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: August 31, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Bin Li, Jizheng Xu
  • Patent number: 11109008
    Abstract: A data transmission method, a data loading device, a data parsing device, and a data transmission system are described herein. The methods include acquiring original video data, acquiring data to be transmitted, processing the original video data according to the data to be transmitted to obtain target video data, and displaying the target video data and the original video data. The methods may further include after displaying the target video data and the original video data, collecting the displayed target video data and original video data, parsing the original video data and the target video data to obtain the data to be transmitted.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: August 31, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yingyi Li
  • Patent number: 11107223
    Abstract: Provided are an image detection device, an image detection method and a program, which are capable of improving correspondence to a target deformation by optimizing a template shape, when performing target detection using template matching. An image detection device 100 for detecting a target from an input image comprises: a template generation unit 10 that generates a template for detecting a target; a mask generation unit 20 that generates a mask which shields a portion of the template, on the basis of temporal variations of a feature point extracted from an area including the image target; and a detection unit 30 that detects the target from the image using the template a portion of which is shielded by the mask.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: August 31, 2021
    Assignee: NEC CORPORATION
    Inventor: Takuya Ogawa
  • Patent number: 11109011
    Abstract: A server may be configured to receive first pose data from a virtual reality device, generate second pose data, including a pose prediction, based at least on the first pose data, render a map representation based at least on the pose prediction, determine regions of the map representation based on a likelihood of view of each of the regions, perform foveation in each of the regions and generate an encoded frame based on the regions and a network parameter, and send the encoded frame and second pose data to the device. The encoding may associate each of the regions with a quality level and base the foveation on each region's associated quality level. The foveation may use different quantization parameters for each of the regions and/or use rendering foveation for each of regions. Network conditions such as latency, bandwidth, and/or jitter may be considered for bit allocation in the foveation.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: August 31, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Eric Horvitz, Eduardo Cuervo, David Chu
  • Patent number: 11109064
    Abstract: A video decoder receives data for a block of pixels to be decoded as a current block of a current picture of a video. When the current block is coded by using inter mode and bi-directional prediction, the video decoder receives a first motion vector difference and determines a second motion vector difference based on a first flag or a second flag. When the first flag is false, the video decoder uses the second flag to determine whether to set the second motion vector difference to be at an opposite value of the first motion vector difference. When the first flag is true, the video decoder sets the second motion vector difference to be zero. The video decoder reconstructs the current block by using motion information based on the first motion vector difference and the second motion vector difference to perform inter prediction.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: August 31, 2021
    Assignee: MediaTek Inc.
    Inventors: Man-Shu Chiang, Chih-Wei Hsu, Tzu-Der Chuang
  • Patent number: 11109039
    Abstract: Provided are a method and apparatus for performing intra prediction, in a video encoding and decoding procedure, by configuring an additional mode set based on most probable mode (MPM) modes of a current block, and determining an intra prediction mode of the current block, based on the MPM modes and the additional mode set. To solve the technical problems, a video decoding method provided in the present disclosure includes configuring an additional mode set based on MPM modes of a current block; determining an intra prediction mode of the current block, based on the MPM modes and the additional mode set; and performing intra prediction on the current block, based on the intra prediction mode.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: August 31, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Na-rae Choi, Bo-ra Jin
  • Patent number: 11102491
    Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method includes the steps of: deriving a current prediction mode as a prediction anode of a current block; constructing neighboring samples of the current block with available reference samples; filtering the available reference samples; and generating predicted samples of the current block on the basis of the filtered available reference samples. The filtering step includes performing the filtering using the available reference sample located in the prediction direction of the current prediction mode and a predetermined number of available reference samples neighboring to the prediction direction of the current prediction mode.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: August 24, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Yong Joon Jeon, Seung Wook Park, Jung Sun Kim, Joon Young Park, Byeong Moon Jeon, Jae Hyun Lim
  • Patent number: 11102485
    Abstract: Several methods, systems, and computer program products for quantization of video content are disclosed. In an embodiment, the method includes determining by a processing module, motion information associated with a block of video data of the video content. A degree of randomness associated with the block of video data is determined by the processing module based on the motion information. A value of a quantization parameter (QP) associated with the block of video data is modulated by a quantization module based on the determined degree of randomness.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: August 24, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Arun Shankar Kudana, Soyeb Nagori
  • Patent number: 11102509
    Abstract: The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise configuring an MPM list based on intra-prediction modes of neighbor blocks of a current block and a number of frequencies of the intra-prediction modes of the neighbor blocks, deriving an intra-prediction mode of the current block based on the MPM list, and performing intra-prediction for the current block based on the intra-prediction mode.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 24, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyun Suk Ko, Sung Chang Lim, Jung Won Kang, Jin Ho Lee, Ha Hyun Lee, Dong San Jun, Hui Yong Kim
  • Patent number: 11102475
    Abstract: A video encoding device includes a local decode generation unit for generating a reference image based on a result of encoding of a divided image, a compression unit for compressing the reference image to generate a compressed data, a reference image storage determination unit for determining whether to store the compressed data in a memory, and an inter-prediction unit for performing motion vector search for inter-coding based on a reference image stored in the memory. The reference image storage determination unit sets an allowable data amount used for storing the reference image for each determined area of the moving image data, and determines whether or not to store the compressed data obtained by compressing the reference image in the memory based on the allowable data amount. Inter-prediction unit sets the reference image corresponding to the compressed data stored in the memory as the search range of motion vector search.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: August 24, 2021
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Maiki Hosokawa, Toshiyuki Kaya, Tetsuya Shibayama, Seiji Mochizuki, Tomohiro Une, Kazushi Akie
  • Patent number: 11102510
    Abstract: An improved method of performing intra prediction for encoding or decoding uses interpolation such that substitute samples are found for samples to be used in the interpolation calculation that lie outside a normal reference range. The substitute samples can be repeated end samples from the bottom of a reference portion to the left of the target block, or right samples of a reference portion above the target block. An encoder can signal to a decoder whether to use intra prediction or interpolation prediction.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: August 24, 2021
    Assignee: InterDigital Madison Patent Holdings, SAS
    Inventors: Fabien Racape, Franck Galpin, Gagan Rath, Fabrice Leleannec
  • Patent number: 11102496
    Abstract: Approaches for encoding or decoding when switching color spaces involve signaling of control information for adaptive color space transformation (“ACT”). For example, an encoder encodes a unit of video to produce encoded data. As part of the encoding, the encoder evaluates a condition for the unit and conditionally signals a syntax element that indicates whether ACT is enabled within the unit. The encoder outputs the encoded data as part of a bitstream. A corresponding decoder receives encoded data as part of a bitstream. The decoder decodes the encoded data to reconstruct a unit of video. As part of the decoding, the decoder evaluates a condition for the unit and conditionally parses a syntax element that indicates whether ACT is enabled within the unit. The syntax element is parsed if the condition is satisfied, but otherwise the parsing of the syntax element is skipped.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: August 24, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Bin Li, Jizheng Xu, Gary J. Sullivan
  • Patent number: 11093391
    Abstract: A cache controller with a pattern recognition mechanism can identify patterns in cache lines. Instead of transmitting the entire data of the cache line to a destination device, the cache controller can generate a meta signal to represent the identified bit pattern. The cache controller transmits the meta signal to the destination in place of at least part of the cache line.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 17, 2021
    Assignee: Intel Corporation
    Inventors: Saher Abu Rahme, Christopher E. Cox, Joydeep Ray
  • Patent number: 11095902
    Abstract: A method for image coding, an electronic device and a computer-readable storage medium. The method includes: an object region is acquired from a reference image; a pixel block forming the reference image is acquired, and multiple sets of coded data for the pixel are obtained by coding the pixel block in multiple coding modes respectively, each set corresponding to a respective one of the multiple coding modes; a cost parameter of the pixel block is determined based on a relative position relationship between the pixel block and the object region; a coding cost in each of the multiple coding modes for the pixel block, is obtained according to the cost parameter of the pixel block and the coded data in the coding mode; and a set of coded data corresponding to the coding mode with a lowest coding cost is determined as target coded data for the pixel block.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: August 17, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Haidong Huang
  • Patent number: 11095891
    Abstract: An encoding and decoding method, where the decoding method includes obtaining first information of a coding tree unit (CTU) in a to-be-decoded picture from a bitstream, where the first information indicates an allowed value range of a width-to-height ratio of a coding unit (CU) obtained by dividing the CTU, obtaining division information of the CTU from the bitstream, dividing the CTU into one or more CUs based on the first information and the division information, where a width-to-height ratio of the one or more CUs falls within the value range indicated by the first information, and the plurality of CUs do not overlap each other, and decoding the one or more CUs to obtain a reconstructed pixel of the one or more CUs.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: August 17, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yin Zhao, Haitao Yang, Shan Gao
  • Patent number: 11087500
    Abstract: The present invention relates to an image encoding/decoding method and apparatus, A method of decoding an image according to an exemplary embodiment of the present invention comprises: decoding transformation information; creating at least one transformed reference picture by applying the transformation information to at least one reference picture organized in a reference picture list; inserting the at least one transformed reference picture into the reference picture list; and performing motion compensation by using the reference picture list.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: August 10, 2021
    Assignee: University-Industry Cooperation Group of Kyung Hee University
    Inventors: Gwang Hoon Park, Dae Young Lee, Tae Hyun Kim
  • Patent number: 11089311
    Abstract: Techniques and tools for performing fading compensation in video processing applications are described. For example, during encoding, a video encoder performs fading compensation using fading parameters comprising a scaling parameter and a shifting parameter on one or more reference images. During decoding, a video decoder performs corresponding fading compensation on the one or more reference images.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: August 10, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Sridhar Srinivasan, Shankar Regunathan
  • Patent number: 11088772
    Abstract: Methods, apparatus, systems and articles of manufacture to reduce false positive signature matches due to similar media segments in different reference media assets are disclosed. Example apparatus disclosed herein include a signature matcher to compare monitored media signatures with a library of reference media signatures, the monitored media signatures associated with monitored media, the library of reference media signatures including sequences of reference signatures associated with respective reference media assets. Disclosed example apparatus also include a match information identifier to identify a number of different matched reference media assets associated with ones of the sequences of reference media signatures that match a sequence of matched monitored media signatures.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: August 10, 2021
    Assignee: The Nielsen Company (US), LLC
    Inventors: David H. Wright, Dan Nelson, Raghuram Ranganathan, Derrick McCulley
  • Patent number: 11089312
    Abstract: The present invention relates to an image processing method and an apparatus therefor. Specifically, a method for decoding an image may comprise the steps of: decoding a first split flag indicating whether to split a first block using a binary tree structure; when the first split flag indicates that the first block is split, decoding split mode information indicating the direction in which the first block is split; checking whether a second block split from the first block is a square block, according to the split mode information; and when, as a result of the checking, it is determined that the second block is a square block, decoding a second split flag indicating whether to split the second block using a quad tree structure.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: August 10, 2021
    Assignee: LG Electronics Inc.
    Inventors: Hyeongmoon Jang, Junghak Nam
  • Patent number: 11082703
    Abstract: A device for coding video data is configured to determine that a current block of video data is coded using an intra prediction mode; add an intra prediction mode of a first neighboring block of the current block to a most probable mode candidate list for the current block; add an intra prediction mode for a second neighboring block of the current block to the most probable mode candidate list for the current block; add an intra prediction mode for a third neighboring block of the current block to the most probable mode candidate list for the current block; and code the current block of video data using an intra prediction mode.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: August 3, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Vadim Seregin, Xin Zhao, Amir Said, Marta Karczewicz, Nan Hu, Wei-Jung Chien, Vijayaraghavan Thirumalai
  • Patent number: 11082690
    Abstract: A method of video processing includes maintaining tables, wherein each table includes a set of motion candidates and each motion candidate is associated with corresponding motion information; and performing a conversion between a first video block and a bitstream representation of a video including the first video block based on at least some of tables, the performing including checking motion candidates in a table in an order defined in a rule until a checking termination criteria is met.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: August 3, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11074752
    Abstract: A method of generating a refined depth map for a three-dimensional (3D) model of an object is described. The method may include may include warping a set of target images, resulting in warped target images, wherein the set of target images is selected from the plurality of images; determining a difference between each warped target image and a reference image, wherein the reference image is from the plurality of images; determining, for each warped target image, an alpha mask comprising per-pixel weights; and updating an initialized depth map based on alpha mask, resulting in the estimated depth map. Related systems, devices and computer program products are also described.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 27, 2021
    Assignee: SONY GROUP CORPORATION
    Inventors: Francesco Michielin, Roderick Köehle, Fredrik Mattisson
  • Patent number: 11074673
    Abstract: A method of increasing temporal resolution: a) provides an original video having a given spatial resolution; b) compresses a first frame of said original video using any image compression method; and c) repeatedly compresses a next frame of said original video using the steps of: i. providing a current video comprising the already compressed video frames, said current video having an initial spatial resolution; ii. repeatedly reducing the spatial resolution of said current video and the spatial resolution of said next frame of the original video, to produce a lowest level spatial resolution current video and a lowest level spatial resolution next frame of the original video; and iii. compressing said lowest level spatial resolution next frame of the original video to produce a lowest level compressed next frame.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: July 27, 2021
    Assignee: NUMERI LTD.
    Inventors: Ilan Bar-On, Oleg Kostenko
  • Patent number: 11076151
    Abstract: Systems, apparatuses, and methods for calculating multi-pass histograms for palette table derivation include an encoder that calculates a first histogram for a first portion of most significant bits (MSBs) of pixel component values of a block of an image or video frame. Then, the encoder selects a given number of the highest pixel count bins from the first histogram. The encoder then increases the granularity of these selected highest pixel count bins by evaluating one or more additional bits from the pixel component values. A second histogram is calculated for the concatenation of the original first portion MSBs from the highest pixel count bins and the one or more additional bits, and the highest pixel count bins are selected from the second histogram. A palette table is derived based on these highest pixel count bins selected from the second histogram, and the block is encoded using the palette table.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: July 27, 2021
    Assignee: ATI Technologies ULC
    Inventors: Feng Pan, Wei Gao, Yang Liu, Crystal Yeong-Pian Sau, Haibo Liu, Edward A. Harold, Ying Luo, Ihab Amer, Gabor Sines
  • Patent number: 11075647
    Abstract: Methods, apparatus, systems and articles of manufacture to compress data are disclosed.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: July 27, 2021
    Assignee: Movidius Limited
    Inventors: Valentina Rigo, David Bernard, Peter McGlynn
  • Patent number: 11070812
    Abstract: A video decoder may determine, based on syntax elements in a bitstream that comprises an encoded representation of the video data, residual quantized samples of a block of the video data. Additionally, the video decoder may determine quantized residual values based on the residual quantized samples. After determining the quantized residual values, the video decoder may inverse quantize the quantized residual values. The video decoder may generate predicted values by performing intra prediction for the block using unfiltered samples from above or left block boundary samples. Furthermore, the video decoder may reconstruct original sample values of the block based on the inverse-quantized quantized residual values and the prediction values.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: July 20, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Muhammed Zeyd Coban, Marta Karczewicz
  • Patent number: 11070847
    Abstract: A video decoder can be configured to decode a block of video data by determining a block of video data is coded in an intra prediction mode; determining one or more samples for intra predicting the block of video data, wherein the one or more samples comprise samples that are already reconstructed and not adjacent to the block of video data; and based on the one or more samples, generating a predictive block for the block of video data.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: July 20, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Kai Zhang, Jianle Chen, Xin Zhao, Marta Karczewicz
  • Patent number: 11051021
    Abstract: The coding efficiency and the amount of processing can be further improved in methods that use the correlation between spatial and temporal directions to estimate parameters that are required for predictions. In LM prediction that predicts pixel values of chrominance, based on pixel values of luminance, an index for a filter that downsamples a luminance image is adaptively signalled.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: June 29, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Tomoko Aono, Tomohiro Ikai, Takeshi Chujoh
  • Patent number: 11051029
    Abstract: A method of decoding a bitstream by an electronic device is provided. An image frame is received from the bitstream, and a block unit is determined from the image frame. A prediction index of the block unit is determined from the bitstream. A plurality of reference mode indices is determined based on a plurality of neighboring blocks of the block unit. The electronic device determines whether the reference mode indices are greater than a specific one of a plurality of non-angular mode indices. When the reference mode indices are greater than the specific non-angular mode index, the electronic device determines whether a difference between the reference mode indices is equal to two. When the difference is equal to two, a prediction mode is selected according to the prediction index and based on a first candidate list. Then, the block unit is reconstructed based on the prediction mode.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: June 29, 2021
    Assignee: FG Innovation Company Limited
    Inventors: Hong-Jheng Jhu, Yao-Jen Chang
  • Patent number: 11051028
    Abstract: Disclosed are a method and apparatus for improving the accuracy of intra-prediction in order to improve encoding and decoding efficiency. The video decoding method may improve the prediction efficiency for the current pixel to be predicted by referring to the degree of variation in surrounding pixels, to thereby effectively decode the bit stream with improved encoding efficiency. In addition, an additional prediction candidate is used to achieve improved accuracy of intra-prediction, and the thus-improved accuracy of intra-prediction may reduce residual components and improve encoding efficiency. Further, an improved planar mode is utilized to achieve improved intra-prediction.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: June 29, 2021
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Je Chang Jeong, Ki Baek Kim, Won Jin Lee, Hye Jin Shin, Jong Sang Yoo, Jang Hyeok Yun, Kyung Jun Lee, Jae Hun Kim, Sang Gu Lee
  • Patent number: 11051009
    Abstract: Video data processing methods and apparatuses in a video encoding or decoding system for processing a slice partitioned into Coding Units (CUs). The video encoding or decoding system receives input data of a current CU and checks a size of the current CU. The residual of the current CU is set to zero or the current CU is coded in Skip mode if the size of the current CU is greater than a maximum size threshold value. A CU with zero residual implies coefficient level values in one or more corresponding transform blocks are all zero, complicated transform processing for large size blocks is therefore avoided.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 29, 2021
    Assignee: MEDIATEK INC.
    Inventor: Shih-Ta Hsiang
  • Patent number: 11044485
    Abstract: A method for coding unit partitioning in a video encoder is provided that includes performing intra-prediction on each permitted coding unit (CU) in a CU hierarchy of a largest coding unit (LCU) to determine an intra-prediction coding cost for each permitted CU, storing the intra-prediction coding cost for each intra-predicted CU in memory, and performing inter-prediction, prediction mode selection, and CU partition selection on each permitted CU in the CU hierarchy to determine a CU partitioning for encoding the LCU, wherein the stored intra-prediction coding costs for the CUs are used.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: June 22, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Hyung Joon Kim, Minhua Zhou, Akira Osamoto, Hideo Tamama
  • Patent number: 11044469
    Abstract: A method for constructing a most probable mode (MPM) list for prediction process corresponding to video block is provided. The method includes determining whether a left block of a current coding block is available, in response to determining that the left block of the current coding block is available, adding an intra prediction mode of the left block into an MPM list; determining whether an above block of the current coding block is available, in response to determining that the above block of the current coding block is available, adding an intra prediction mode of the above block into the MPM list; adding an offset to the prediction mode of the left block to obtain a new prediction mode; and adding the above-offset prediction mode into the MPM list when the above-offset prediction mode is not in the MPM list. The MPM list is used to improve coding efficiency.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: June 22, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Anand Meher Kotra, Biao Wang, Semih Esenlik, Jianle Chen, Zhijie Zhao, Han Gao
  • Patent number: 11044466
    Abstract: An image processing device for performing a data decompression is provided. The image processing device includes a decoder circuit having a plurality of stages for decompressing compressed image data of a plurality of pixels. The decoder circuit is configured to divide the pixels into a plurality of groups. The first stage performs prediction compensation on the compressed image data of a first pixel of the first group at a first time to generate first prediction data, and performs the prediction compensation on the compressed image data of a second pixel of the first group at a second time using the first prediction data. The second stage performs the prediction compensation on the compressed image data of a first pixel of the second group at the second time using the first prediction data, to generate second prediction data.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: June 22, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho Jun, Yo-Han Lim
  • Patent number: 11044472
    Abstract: Disclosed is a method for encoding and decoding an image by applying different filtering strength to reference pixels based on a size relationship between a current block and each reference block such that a prediction block for the current block is constructed using reference pixels which are filtered adaptively according to their properties.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: June 22, 2021
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Je Chang Jeong, Ki Baek Kim, Jung Hyun Lee
  • Patent number: 11044481
    Abstract: An encoder which encodes a current block of a picture includes a processor and memory. Using the memory, the processor: determines whether intra prediction is to be used for the current block; and when it is determined that intra prediction is to be used for the current block, generates first transform coefficients by performing first transform of residual signals of the current block using a first transform basis; quantizes the first transform coefficients when an intra prediction mode for the current block is a determined mode and the first transform basis is different from a determined transform basis; and generates second transform coefficients by performing second transform of the first transform coefficients using a second transform basis, and quantizes the second transform coefficients, when the intra prediction mode for the current block is not the determined mode or when the first transform basis matches the determined transform basis.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: June 22, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Masato Ohkawa, Hideo Saitou, Tadamasa Toma, Takahiro Nishi, Kiyofumi Abe, Ryuichi Kanoh
  • Patent number: 11039134
    Abstract: An image encoding/decoding method and apparatus of the present invention may divide one picture into a plurality of division units, determine whether to perform filtering on a boundary of a current division unit based on a predetermined flag, and perform filtering on the boundary of the current division unit in response to the determination.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: June 15, 2021
    Assignee: B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.
    Inventor: Ki Baek Kim
  • Patent number: 11039171
    Abstract: Technology is described for decoding a video block. A block-type syntax information is received which indicates a size of a video block in a video frame, wherein a maximum size of the video blocks is 32×32 or 64×64. The video block having the size indicated by the block-type syntax information is received. The video block is partitioned into partitions, and at least one of the partitions is encoded with a first encoding mode and at least one other of the partitions is encoded with a second encoding mode which is different from the first encoding mode. Syntax information is received for the partitions of the video block and for the first encoding mode and the second encoding mode. Motion vector information is received for one or more of the partitions. The video block is decoded based on at least the block-type syntax information and the motion vector information.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 15, 2021
    Assignee: Velos Media, LLC
    Inventors: Peisong Chen, Marta Karczewicz, Yan Ye
  • Patent number: 11039131
    Abstract: An apparatus for coding a block of a frame using intra-prediction includes a memory and a processor. The processor is configured to execute instructions stored in the memory to obtain an intra-prediction mode for coding the block of the frame; select a transform type for coding a transform block of a residual block, which results from predicting the block using the intra-prediction mode; and code the transform block using the transform type. To select the transform type includes to, in a case where the intra-prediction mode is a SMOOTH_PRED, select a ADST_ADST transform type; in a case where the intra-prediction mode is a SMOOTH_H_PRED, select a DCT_ADST transform type; and in a case where the intra-prediction mode is a SMOOTH_V_PRED, select a ADST_DCT transform type.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: June 15, 2021
    Assignee: GOOGLE LLC
    Inventors: Urvang Joshi, Debargha Mukherjee
  • Patent number: 11039154
    Abstract: A set of reconstruction elements useable to reconstruct a representation of a signal at a relatively high level of quality using data based on a representation of the signal at a relatively low level of quality is obtained. The representation at the relatively high level of quality is arranged as an array comprising at least first and second rows of signal elements. A reconstruction element is associated with a respective signal element in the set. A set of data elements is derived based on the set of reconstruction elements. At least one of the data elements is derived from at least two reconstruction elements associated with signal elements from the first row and a different number of reconstruction elements associated with signal elements from the second row.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 15, 2021
    Assignee: V-NOVA INTERNATIONAL LIMITED
    Inventors: Ivan Damnjanovic, Gaurav Mittal
  • Patent number: 11039143
    Abstract: A method of decoding video data includes determining, by a video decoder implemented in processing circuitry, a context initialization using a plurality of quantization parameters for a portion of a picture of video data decoded using temporal prediction. The method includes storing, by the video decoder, the context initialization with a single probability state for the plurality of quantization parameters. The method includes entropy decoding, by the video decoder, a set of syntax elements in a bitstream using the single probability state.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: June 15, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Li Zhang, Wei-Jung Chien, Jianle Chen, Marta Karczewicz