Bidirectional Patents (Class 375/240.15)
  • Patent number: 11184639
    Abstract: An image decoding method according to the present invention may comprise determining an intra prediction mode of a current block, deriving reference samples of the current block, and obtaining a prediction sample of the current block using at least one of the reference samples.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: November 23, 2021
    Assignee: KT CORPORATION
    Inventor: Bae Keun Lee
  • Patent number: 11166031
    Abstract: A method for processing a video includes performing a determination, by a processor, that a first video block is partitioned to include a first prediction portion that is non-rectangular and non-square; adding a first motion vector (MV) prediction candidate associated with the first prediction portion to a motion candidate list associated with the first video block, wherein the first MV prediction candidate is derived from a sub-block MV prediction candidate; and performing further processing of the first video block using the motion candidate list.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: November 2, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11159816
    Abstract: A method of decoding a bitstream comprising a digital representation of a video includes decoding motion information for a current video block from the bitstream, estimating matching costs of the current video block using one or more templates based on a partial set of pixel locations in each of the one or more templates, where in the each of the one or more templates includes a video block with multiple samples and refining the motion information of the current video block using a template having a minimum matching cost.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: October 26, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Hongbin Liu, Li Zhang, Kai Zhang, Yue Wang
  • Patent number: 11159787
    Abstract: A method of video decoding includes checking one or more video blocks in pre-defined relative positions compared to a first video block to derive a first set of candidates, wherein each of the first set of candidates is derived from corresponding motion information of the video blocks checked, checking, upon a determination that a number of the first set of candidates has not reached a predetermined limit, one or multiple tables to derive a second set of candidates, and processing the first video block based on a bitstream representation of the first video block and the constructed candidate list.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: October 26, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11153569
    Abstract: An image encoder or decoder includes circuitry and a memory coupled to the circuitry. The circuitry, in operation, predicts a first set of samples for a first partition of a current picture with one or more motion vectors including a first motion vector and predicts a second set of samples for a first portion of the first partition with one or more motion vectors from a second partition different from the first partition. The samples of the first set of samples of the first portion of the first partition and of the second set of samples of the first portion of the first partition are weighted. A motion vector for the first portion of the first partition is stored which is based on one or both of the first motion vector and the second motion vector. The first partition is encoded or decoded using at least the weighted samples of the first portion of the first partition.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: October 19, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Ru Ling Liao, Chong Soon Lim, Hai Wei Sun, Han Boon Teo, Jing Ya Li, Kiyofumi Abe, Takahiro Nishi, Tadamasa Toma
  • Patent number: 11126808
    Abstract: A system and method for use in decoding a dot code carried by a glass substrate or container. The method comprises converting an image of a dot code to a grayscale image to remove effects of at least one of color of the glass substrate or color of ambient light, where the image includes a plurality of circular dots; detecting edges of the circular dots in the grayscale image to produce an edge-detected image; filtering the edge-detected image to produce a filtered image; applying a Close transform to convert open instances of the circular dots to closed instances of the circular dots; and identifying quantity and position of all of the circular dots. The method may further include applying a transform to remove background noise from the filtered image and/or filling all the closed instances of the circular dots.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: September 21, 2021
    Assignee: Owens-Brockway Glass Container Inc.
    Inventor: Karl Johnston
  • Patent number: 11128858
    Abstract: A method of video decoding includes checking one or more video blocks in pre-defined relative positions compared to a first video block to derive a first set of candidates, wherein each of the first set of candidates is derived from corresponding motion information of the video blocks checked, checking, upon a determination that a number of the first set of candidates has not reached a predetermined limit, one or multiple tables to derive a second set of candidates, and processing the first video block based on a bitstream representation of the first video block and the constructed candidate list.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: September 21, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11122277
    Abstract: A method for processing a video includes performing a determination, by a processor, that a first video block is partitioned to include a first prediction portion that is non-rectangular and non-square; adding a first motion vector (MV) prediction candidate associated with the first prediction portion to a motion candidate list associated with the first video block, wherein the first MV prediction candidate is derived from a sub-block MV prediction candidate; and performing further processing of the first video block using the motion candidate list.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: September 14, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11115712
    Abstract: Systems and methods for indexing and searching for digital media in a multi-player gaming network are disclosed. In a game module stored locally in each client device, a content editor application generates a user interface through which a player may create, or search for, a personal visual symbol. Search queries are processed to determine asset signatures and, based on the asset signatures, corresponding stored personal visual symbol data are identified.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: September 7, 2021
    Assignee: Activision Publishing, Inc.
    Inventors: Dean Richard Wyatte, Christopher Anjos
  • Patent number: 11113861
    Abstract: This disclosure presents a process to generate one or more video frames through guiding the movements of a target object in an environment controlled by physics-based constraints. The target object is guided by the movements of a reference object from a motion capture (MOCAP) video clip. As disturbances, environmental factors, or other physics-based constraints interfere with the target object mimicking the reference object. A tracking agent, along with a corresponding neural network, can be used to compensate and modify the movements of the target object. Should the target object diverge significantly from the reference object, such as falling down, a recovery agent, along with a corresponding neural network, can be used to move the target object back into an approximate alignment with the reference object before resuming the tracking process.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: September 7, 2021
    Assignee: Nvidia Corporation
    Inventors: Nuttapong Chentanez, Matthias Mueller-Fischer, Miles Macklin, Viktor Makoviichuk, Stefan Jeschke
  • Patent number: 11109057
    Abstract: Exemplary video processing methods and apparatuses for coding a current block by overlapped sub-block motion compensation split the current block into overlapped sub-blocks, determine a sub-block MV for each overlapped sub-block, derive an initial predictor for each sub-block by motion compensation using the sub-block MV, derive a final predictor for each overlapped region by blending the initial predictors of the overlapped region, and encode or decode the current block based on the final predictors. Exemplary video processing methods and apparatuses for coding blocks with OBMC generate a converted MV by changing a MV to an integer MV or changing a MV component to an integer component, derive an OBMC region by motion compensation using the converted MVs, and encode or decode the blocks by blending an OBMC predictor with an original predictor.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: August 31, 2021
    Assignee: MEDIATEK INC.
    Inventors: Zhi-Yi Lin, Tzu-Der Chuang, Chun-Chia Chen, Ching-Yeh Chen, Chih-Wei Hsu, Yu-Wen Huang
  • Patent number: 11102474
    Abstract: Pixel values of a current video coding block are intra predicted on the basis of a plurality of reference pixel values. A pixel value of a current pixel is intra predicted on the basis of: a first reference pixel value, wherein the first reference pixel is located in a first neighboring video coding block, a second reference pixel value, wherein the second reference pixel is located in a second neighboring video coding block, a distance between the current pixel and the first reference pixel, and a distance between the current pixel and the second reference pixel.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: August 24, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Alexey Konstantinovich Filippov, Vasily Alexeevich Rufitskiy
  • Patent number: 11102472
    Abstract: A video decoding device, in the case where a video of the progressive format is inputted, processes a frame as a picture, in the case where a video of the interlace format is inputted, processes a field as a picture. A video decoding device performs display control corresponding to a format of the both video by analyzing display control information in display control information analyzer. The display control information includes sequence unit display control information which is commonly used in a display process of all pictures that belong to a sequence to be decoded and picture unit display control information which is individually used in a display process of a picture to be decoded. A second code string analyzer acquires each of the sequence unit display control information and the picture unit display control information from an extended information area in units of pictures.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: August 24, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Kiyofumi Abe, Kazuhito Kimura, Hideyuki Ohgose, Hiroshi Arakawa, Koji Arimura
  • Patent number: 11087427
    Abstract: A method for dynamically limiting a memory bandwidth of a graphics processing unit (GPU) is applicable to a bandwidth-limited system. The bandwidth-limited system includes an audio/video decoder and a GPU. The method includes detecting a plurality of decoding times of a plurality of frames of an audio/video decoded by an audio/video decoder, and adjusting a max grant amount of a memory bandwidth of a GPU according to the plurality of decoding times of the plurality of frames and a target time. Therefore, in the case where the total memory bandwidth is limited, the memory bandwidth of the GPU is limited by the performance of the corresponding audio/video decoder such that, during audio/video playback, the effect of audio/video playback can be prevented from being affected and at the same time a better graphical user interface can be provided.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: August 10, 2021
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Yi-Chen Tseng, Ming-Yang Tseng
  • Patent number: 11089307
    Abstract: An image decoding method using a merge mode, can include constructing a merge candidate list by using available spatial merge candidates and an available temporal merge candidate; generating a prediction block based on motion information derived by using the merge candidate list; inversely quantizing a quantization block by using a quantization parameter generated per quantization unit, wherein the quantization block is generated with quantization coefficient components; generating a residual block by inversely transforming the inversely quantized quantization block; deriving a reconstructed block by using the prediction block and the residual block, in which the spatial merge candidates are motion information of spatial merge candidate blocks, and the spatial merge candidate blocks are a left block, an above block, an above-right block, a left-below block or an above-left block of a current block, and a reference picture index of the temporal merge candidate is 0.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: August 10, 2021
    Assignee: INFOBRIDGE PTE. LTD.
    Inventors: Soo Mi Oh, Moonock Yang
  • Patent number: 11089300
    Abstract: A method of video decoding includes checking one or more video blocks in pre-defined relative positions compared to a first video block to derive a first set of candidates, wherein each of the first set of candidates is derived from corresponding motion information of the video blocks checked, checking, upon a determination that a number of the first set of candidates has not reached a predetermined limit, one or multiple tables to derive a second set of candidates, and processing the first video block based on a bitstream representation of the first video block and the constructed candidate list.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: August 10, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11082704
    Abstract: According to the present invention, an inter prediction method comprises the steps of: generating a merge candidate list for a block to be predicted, wherein the block is to correspond to a current prediction unit; deriving, on the basis of one of a plurality of merge candidates constituting the merge candidate list, motion information on the block to be predicted; and performing, on the basis of the derived motion information, a prediction on the block to be predicted so as to generate a prediction block corresponding to the current prediction unit.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: August 3, 2021
    Assignee: LG Electronics Inc.
    Inventors: Yongjoon Jeon, Seungwook Park, Jaehyun Lim, Chulkeun Kim, Jungsun Kim, Naeri Park, Hendry Hendry, Byeongmoon Jeon, Joonyoung Park
  • Patent number: 11070821
    Abstract: A method for processing a video includes performing a determination, by a processor, that a first video block is partitioned to include a first prediction portion that is non-rectangular and non-square; adding a first motion vector (MV) prediction candidate associated with the first prediction portion to a motion candidate list associated with the first video block, wherein the first MV prediction candidate is derived from a sub-block MV prediction candidate; and performing further processing of the first video block using the motion candidate list.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: July 20, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11064191
    Abstract: A method for coding image information includes generating prediction information by predicting information on a current coding unit, and determining whether the information on the current coding unit is the same as the prediction information. When the information on the current coding unit is the same as the prediction information, a flag indicating that the information on the current coding unit is the same as the prediction information is coded and transmitted. When the information on the current coding unit is not the same as the prediction information, a flag indicating that the information on the current coding unit is not the same as the prediction information and the information on the current coding unit are coded and transmitted. At the generating of the prediction information, the prediction information is generated by using the information on the coding unit neighboring to the current coding unit.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: July 13, 2021
    Assignees: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University
    Inventors: Se Yoon Jeong, Hui Yong Kim, Sung Chang Lim, Jin Ho Lee, Ha Hyun Lee, Jong Ho Kim, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn, Gwang Hoon Park, Kyung Yong Kim, Han Soo Lee, Tae Ryong Kim
  • Patent number: 11064214
    Abstract: A system and method for compressing video is disclosed, in which video frames that are only between consecutive I-frames are grouped into a video data set. The video data set is split into separate homogeneous files, and each of the homogeneous files are individually compressed. In one embodiment, the individually compressed files are multiplexed to form a bit stream.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: July 13, 2021
    Assignee: The DIRECTV Group, Inc.
    Inventors: Ashish Banerji, Kumar Swaminathan
  • Patent number: 11061581
    Abstract: Technology for operating a data-source device for assembling a data stream compliant with a data stream constraint. The technology comprises acquiring a plurality of data items by accessing data in a memory and/or transforming data. Prior to completion of the accessing data in a memory, an accessor is selected based on an estimate of access constraint. Prior to completion of the transforming data, a transformer is selected based on an estimate of transformation constraint, wherein the transportation constraint comprises any data acquisition constraint. The access and transformation constraints are dependent upon system state it the data-source system. The data items are positioned in the data stream, and, responsive to achieving compliance with the data stream constraint, the data strewn is communicated.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: July 13, 2021
    Assignee: ARM IP Limited
    Inventors: Marcus Chang, Hugo John Martin Vincent, Milosch Meriac
  • Patent number: 11057620
    Abstract: A method of video decoding includes checking one or more video blocks in pre-defined relative positions compared to a first video block to derive a first set of candidates, wherein each of the first set of candidates is derived from corresponding motion information of the video blocks checked, checking, upon a determination that a number of the first set of candidates has not reached a predetermined limit, one or multiple tables to derive a second set of candidates, and processing the first video block based on a bitstream representation of the first video block and the constructed candidate list.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: July 6, 2021
    Assignees: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., BYTEDANCE INC.
    Inventors: Li Zhang, Kai Zhang, Hongbin Liu, Yue Wang
  • Patent number: 11039136
    Abstract: A macro block size determining unit 1 determines the size of each macro block on a frame-by-frame basis. A macro block dividing unit 2 divides an inputted image into macro blocks each having the size determined by the macro block size determining unit 1. A macro block coding unit 3 determines a coding mode for each of the macro blocks divided by the macro block dividing unit 2, and codes pixel values in each of the macro blocks in the determined coding mode.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: June 15, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshimi Moriya, Shunichi Sekiguchi, Yoshihisa Yamada, Kohtaro Asai
  • Patent number: 11039162
    Abstract: Disclosed is a video signal processing method comprising the steps of: acquiring a merge index which indicates a candidate for prediction of a current block among a plurality of candidates for the prediction of the current block, which are included in a merge candidate list; acquiring motion information of the current block on the basis of motion information corresponding to the candidate indicated by the merge index; when the motion information of the current block includes a plurality of motion vectors corresponding to a list of different reference pictures, comparing picture order count (POC) differences between each of the reference pictures corresponding to the plurality of motion vectors and the current picture including the current block; correcting the plurality of motion vectors on the basis of a result of the comparison; and reconstructing the current block on the basis of the plurality of corrected motion vectors.
    Type: Grant
    Filed: September 26, 2020
    Date of Patent: June 15, 2021
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., HUMAX CO., LTD.
    Inventors: Jaehong Jung, Dongcheol Kim, Geonjung Ko, Juhyung Son, Jinsam Kwak
  • Patent number: 11025912
    Abstract: Overlapped block disparity estimation and compensation is described. Compensating for images with overlapped block disparity compensation (OBDC) involves determining if OBDC is enabled in a video bit stream, and determining if OBDC is enabled for one or more macroblocks that neighbor a first macroblock within the video bit stream. The neighboring macroblocks may be transform coded. If OBDC is enabled in the video bit stream and for the one or more neighboring macroblocks, predictions may be made for a region of the first macroblock that has an edge adjacent with the neighboring macroblocks. OBDC can be causally applied. Disparity compensation parameters or modes may be shared amongst views or layers. A variety of predictions may be used with causally-applied OBDC.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: June 1, 2021
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Alexandros Tourapis, Athanasios Leontaris
  • Patent number: 10999593
    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: April 17, 2020
    Date of Patent: May 4, 2021
    Assignee: SUN PATENT TRUST
    Inventors: Toshiyasu Sugio, Takahiro Nishi, Youji Shibahara, Kyoko Tanikawa, Hisao Sasai, Toru Matsunobu, Kengo Terada
  • Patent number: 10997427
    Abstract: A method is performed at a computing system having one or more processors and memory. The method includes receiving a first video clip having three or more image frames and computing a first hash pattern, including: (i) computing a temporal sequence of differential frames and (ii) for each differential frame: identifying a respective plurality of feature points and computing a respective hash value that represents spatial positioning of the respective feature points with respect to each other. The method includes receiving a second video clip having three or more image frames and computing a second hash pattern by applying steps (i) and (ii) to the three or more image frames. The method includes computing a distance between the first hash pattern and the second hash pattern and determining that the first and second video clips match when the computed distance is less than a threshold distance.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: May 4, 2021
    Assignee: Zorroa Corporation
    Inventor: David DeBry
  • Patent number: 10986370
    Abstract: A video coding system may perform inter-layer processing by simultaneously performing inverse tone mapping and color gamut conversion scalability processes on a base layer of a video signal. The video coding system may then perform upsampling on the processed base layer. The processed base layer may be used to code an enhancement layer. Bit depth may be considered for color gamut conversion modules. Luma and/or chroma bit depths may be aligned with respective larger or smaller bit depth values of luma and/or chroma.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: April 20, 2021
    Assignee: VID SCALE, Inc.
    Inventors: Yan Ye, Jie Dong, Yuwen He, Ralph Neff
  • Patent number: 10965955
    Abstract: Method and apparatus of using Pattern-based MV derivation (PMVD), Bi-directional optical flow (BIO) or Decoder-side MV refinement (DMVR) to refine motion for a bi-direction predicted block are disclosed. According to one method of the present invention, a first and a second motion-compensated reference blocks associated with the current block in a first and a second reference pictures from reference picture list 0 and list 1 are determined respectively. The PMVD process, BIO process or DMVR process is applied to generate motion refinement for the current block using reference data corresponding to the first motion-compensated reference block and the second motion-compensated reference block without other reference data outside the first motion-compensated reference block and the second motion-compensated reference block so as to reduce required system memory bandwidth. Also an adaptive block size method for block-based BIO is disclosed.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 30, 2021
    Assignee: MEDIATEK INC.
    Inventors: Ching-Yeh Chen, Tzu-Der Chuang, Yu-Wen Huang
  • Patent number: 10951917
    Abstract: Provided is a method and apparatus for performing intra-prediction using an adaptive filter. The method for performing intra-prediction includes the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block; applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: March 16, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Ho Lee, Hui Yong Kim, Se Yoon Jeong, Suk Hee Cho, Ha Hyun Lee, Jong Ho Kim, Sung Chang Lim, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn
  • Patent number: 10944963
    Abstract: A method and apparatus for decoding JVET video, including receiving a bitstream, and parsing said bitstream to identify a syntax element indicating an intra direction mode to use for generating at least one predictor. The intra direction mode is a first intra direction mode in a plurality of intra direction modes that includes at least one weighted intra direction mode that corresponds to a non-weighted intra direction mode. The syntax element may identify whether to use a non-weighted or weighted intra direction mode to generate the at least one predictor. Thus, the coding unit may be coded in accordance with the at least one generated predictor associated with the selected intra direction mode.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: March 9, 2021
    Assignee: ARRIS Enterprises LLC
    Inventors: Yue Yu, Krit Panusopone, Limin Wang
  • Patent number: 10944987
    Abstract: An embodiment of a motion estimator apparatus may include technology to receive a compound message, and perform rate distortion estimation and check refinement for two or more coding unit descriptions for a source block based on the received compound message. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: March 9, 2021
    Assignee: Intel Corporation
    Inventors: Jason Tanner, Srinivasan Embar Raghukrishnan, James Holland
  • Patent number: 10931947
    Abstract: A video coding device may be configured to perform transform data coding according to one or more of the techniques described herein.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 23, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Seung-Hwan Kim, Christopher Andrew Segall
  • Patent number: 10931957
    Abstract: The present disclosure discloses an image decryption method that includes steps outlined below. Control information in an image stream is read and decrypted. Image stream packets in the image stream are read according to the control information. According to the control information, pixel data of a first reference frame from a first temporary storage block of a memory module and/or of a second reference frame from a second temporary storage block of the memory module are selectively read. A decryption process is performed according to the image stream packets and selectively according to the pixel data of the first and/or the second reference frame to generate pixel data of a decrypted frame. During the decryption process, the pixel data of the decrypted frame is transmitted to a post-processing circuit and is stored to one of the first and the second temporary storage blocks according to the control information.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: February 23, 2021
    Assignee: XIAMEN SIGMASTAR TECHNOLOGY LTD.
    Inventor: Ming-Yong Sun
  • Patent number: 10904549
    Abstract: A method of video decoding performed in a video decoder includes receiving a coded video bitstream including signaling information for a current block. The method further includes determining block reconstruction information for the current block based on the signaling information. The method further includes reconstructing the current block using the determined block reconstruction information.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: January 26, 2021
    Assignee: Tencent America LLC
    Inventors: Guichun Li, Xiang Li, Xiaozhong Xu, Byeongdoo Choi, Shan Liu
  • Patent number: 10902555
    Abstract: Embodiments of the present disclosure provide a method and a device for processing a picture and an electronic device. The method includes scaling a raw picture to obtain N scaled pictures with different resolutions, where N is a natural number greater than or equal to 2; mapping the N scaled pictures respectively into N content picture each with a same predetermined style feature through a neural algorithm network; scaling the N content pictures to have the same resolution; and encoding and combining the N content images of the same resolution into a dynamic video.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: January 26, 2021
    Inventor: Yen-cheng Chang
  • Patent number: 10897630
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: January 19, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10863195
    Abstract: The present invention provides low complexity planar mode coding in which a first prediction value is calculated using linear interpolation between a value of respective horizontal boundary pixels and a value of one of vertical boundary pixels, and a second prediction value is calculated using linear interpolation between a value of respective vertical boundary pixels and a value of one of the horizontal boundary pixels. The first and second prediction values are then averaged to derive a respective prediction pixel value in a prediction block. A residual between the prediction block and a target block is signaled to a decoder.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 8, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10863181
    Abstract: The present invention relates to a method and device for sharing a candidate list. A method of generating a merging candidate list for a predictive block may include: producing, on the basis of a coding block including a predictive block on which a parallel merging process is performed, at least one of a spatial merging candidate and a temporal merging candidate of the predictive block; and generating a single merging candidate list for the coding block on the basis of the produced merging candidate. Thus, it is possible to increase processing speeds for coding and decoding by performing inter-picture prediction in parallel on a plurality of predictive blocks.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: December 8, 2020
    Assignees: Electronics and Telecommunications Research Institute, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Hui Yong Kim, Gwang Hoon Park, Kyung Yong Kim, Sang Min Kim, Sung Chang Lim, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim
  • Patent number: 10856008
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: December 1, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10841611
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: November 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10841602
    Abstract: A method for decoding a coded video sequence includes decoding at least one tile which comprises a first tile boundary defined by a first tile layout and a second tile boundary defined by second tile layout, wherein the coded video sequence indicates that at least one first prediction mechanism is available across the first tile boundary, and that the at least one first prediction mechanism is not available across the second tile boundary.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: November 17, 2020
    Assignee: TENCENT AMERICA LLC
    Inventors: Stephan Wenger, Shan Liu
  • Patent number: 10834423
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: November 10, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10834389
    Abstract: In omnidirectional videos, only some intra prediction directions may be relevant for intra prediction. For example, for a video generated from an equi-rectangular mapping, only the horizontal directions may be relevant for intra prediction around the poles. To improve compression efficiency, we propose to reduce the number of possible directions, based on the location of the block to be encoded or decoded in the frame. In various embodiments, we may adapt the derivation of the MPM in order to take into account the reduction of intra directions depending on geometric distortions. The encoding method can also be adapted to reduce the number of modes to estimate for a block in omnidirectional videos. The coding of the syntax elements representing the intra direction can also be improved.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: November 10, 2020
    Assignee: InterDigital VC Holdings, Inc.
    Inventors: Franck Galpin, Fabien Racape, Thierry Viellard
  • Patent number: 10832737
    Abstract: A non-transitory recording medium is provided that is reproduced by a playback device having an attribute reader, a decoder, and an outputter. The recording medium has recorded therein a video stream that is encoded video information, and a management information file correlated with the video stream. The management information file includes first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range that is wider than the first dynamic range. In a case where the first attribute information indicates the second dynamic range, the first attribute information also indicates a type of the second dynamic range.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: November 10, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Hiroshi Yahata, Tadamasa Toma, Tomoki Ogawa
  • Patent number: 10827186
    Abstract: Techniques related to video coding with context decoding and reconstruction bypass.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: November 3, 2020
    Assignee: Intel Corporation
    Inventors: Iole Moccagatta, Zhipin Deng, Hiu-Fai Chan, Lidong Xu
  • Patent number: 10827122
    Abstract: A behavioral recognition system may include both a computer vision engine and a machine learning engine configured to observe and learn patterns of behavior in video data. Certain embodiments may provide image stabilization of a video stream obtained from a camera. An image stabilization module in the behavioral recognition system obtains a reference image from the video stream. The image stabilization module identifies alignment regions within the reference image based on the regions of the image that are dense with features. Upon determining that the tracked features of a current image is out of alignment with the reference image, the image stabilization module uses the most feature dense alignment region to estimate an affine transformation matrix to apply to the entire current image to warp the image into proper alignment.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: November 3, 2020
    Assignee: Intellective Ai, Inc.
    Inventors: Kishor Adinath Saitwal, Wesley Kenneth Cobb, Tao Yang
  • Patent number: 10819989
    Abstract: Provided are an inter prediction method and a motion compensation method. The inter prediction method includes: performing inter prediction on a current image by using a long-term reference image stored in a decoded picture buffer; determining residual data and a motion vector of the current image generated via the inter prediction; and determining least significant bit (LSB) information as a long-term reference index indicating the long-term reference image by dividing picture order count (POC) information of the long-term reference image into most significant bit (MSB) information and the LSB information.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 27, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-o Park, Il-koo Kim, Chan-yul Kim, Kwang-pyo Choi
  • Patent number: 10805632
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: October 13, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10805633
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: October 13, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri