Plural Patents (Class 375/240.14)
  • Patent number: 10779001
    Abstract: According to one embodiment, an image encoding method includes selecting a motion reference block from an encoded pixel block to which an inter prediction is applied. The method includes selecting one or more available blocks from the motion reference block. The method includes selecting a selection block from the available blocks. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information specifying the selection block by referring to a code table decided according to a number of the available blocks.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: September 15, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Taichiro Shiodera, Saori Asaka, Akiyuki Tanizawa, Takeshi Chujoh
  • Patent number: 10755164
    Abstract: A dynamic time-evolution Boltzmann machine capable of learning is provided. Aspects include acquiring a time-series input data and supplying a plurality of input values of input data of the time-series input data at one time point to a plurality of nodes of the mode. Aspects also include computing, based on an input data sequence before the one time point in the time-series input data and a weight parameter between each of a plurality of input values of input data of the input data sequence and a corresponding one of the plurality of nodes of the model, a conditional probability of the input value at the one time point given that the input data sequence has occurred. Aspects further include adjusting the weight parameter so as to increase a conditional probability of occurrence of the input data at the one time point given that the input data sequence has occurred.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: August 25, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Takayuki Osogami, Makoto Otsuka
  • Patent number: 10721472
    Abstract: A video decoder, encoder, and corresponding methods for processing video data for an image block and a particular reference picture index to predict the image block are disclosed that utilize adaptive weighting of reference pictures to enhance video compression, where a decoder includes a reference picture weighting factor unit for determining a weighting factor corresponding to the particular reference picture index; an encoder includes a reference picture weighting factor assignor for assigning a weighting factor corresponding to the particular reference picture index; and a method for decoding includes receiving a reference picture index with the data that corresponds to the image block, determining a weighting factor for each received reference picture index, retrieving a reference picture for each index, motion compensating the retrieved reference picture, and multiplying the motion compensated reference picture by the corresponding weighting factor to form a weighted motion compensated reference picture
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: July 21, 2020
    Assignee: InterDigital VC Holdings, Inc.
    Inventor: Jill MacDonald Boyce
  • Patent number: 10708584
    Abstract: A method for decoding image, includes generating a residual block; reconstructing an intra prediction mode group indicator and a prediction mode index of a current block, wherein the indicator indicates whether the intra prediction mode of the current block belongs to which intra prediction mode group among a first or second group, and the prediction mode index specifies intra prediction mode in an intra prediction mode group indicated by the indicator; constructing the first group including three intra prediction modes using valid intra prediction modes of left and top blocks of the current block; determining the intra prediction mode corresponding to the prediction mode index in the first group as the intra prediction mode of the current block when the indicator indicates the first group; generating a prediction block based on the determined intra prediction mode of the current block; generating a reconstructed block using the residual block and the prediction block; and performing deblocking filtering on a
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: July 7, 2020
    Assignee: INFOBRIDGE PTE. LTD.
    Inventor: Shin Ji Park
  • Patent number: 10692185
    Abstract: A method for training an algorithm to process at least a section of received visual data using a training dataset and reference dataset. The method comprises an iterative method with iterations comprising: generating a set of training data using the algorithm; comparing one or more characteristics of the training data to one or more characteristics of at least a section of the reference dataset; and modifying one or more parameters of the algorithm to optimise processed visual data based on the comparison between the characteristic of the training data and the characteristic of the reference dataset. The algorithm may output the processed visual data with the same content as the at least a section of received visual data. Some aspects and/or implementations provide for improved super-resolution of lower quality images to produce super-resolution images with improved characteristics (e.g. less blur, less undesired smoothing) compared to other super-resolution techniques.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 23, 2020
    Assignee: Magic Pony Technology Limited
    Inventors: Zehan Wang, Wenzhe Shi, Ferenc Huszar, Robert David Bishop
  • Patent number: 10687071
    Abstract: Aspects of the disclosure provide method and apparatus for video coding. In some examples, an apparatus includes processing circuitry for video decoding. The processing circuitry locates luma units of a luma coding unit that are co-located with chroma units of a chroma coding unit, and then determines a popularity of an intra block copy mode in the luma units. Further, the processing circuitry determines a block vector for a chroma unit in the chroma coding unit when the popularity meets a requirement, and reconstructs at least one sample of the chroma unit according to the block vector.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 16, 2020
    Assignee: Tencent America LLC
    Inventors: Xiaozhong Xu, Xiang Li, Shan Liu
  • Patent number: 10674180
    Abstract: In one embodiment of the present invention, an encode validator identifies and classifies errors introduced during the parallel chunk-based translation of a source to a corresponding aggregate encode. In operation, upon receiving a source for encoding, a frame difference generator creates a frame difference file for the source. A parallel encoder then distributes per-chunk encoding operations across machines and creates an aggregate encode. The encode validator decodes the aggregate encode and creates a corresponding frame difference file. Subsequently, the encode validator performs phase correlation operations between the two frame difference files to detect errors generated by encoding process faults (i.e., dropping a frame, etc.) while suppressing discrepancies inherent in encoding, such as those attributable to low bit-rate encoding.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: June 2, 2020
    Assignee: NETFLIX, INC.
    Inventors: Anne Aaron, Zhonghua Ma
  • Patent number: 10659788
    Abstract: An optical flow reference frame portion (e.g., a block or an entire frame) is generated that can be used for inter prediction of blocks of a current frame in a video sequence. A forward reference frame and a backward reference frame are used in an optical flow estimation that produces a respective motion field for pixels of a current frame. The motion fields are used to warp some or all pixels of the reference frames to the pixels of the current frame. The warped reference frame pixels are blended to form the optical flow reference frame portion. The inter prediction may be performed as part of encoding or decoding portions of the current frame.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: May 19, 2020
    Assignee: GOOGLE LLC
    Inventors: Yaowu Xu, Bohan Li, Jingning Han
  • Patent number: 10652567
    Abstract: Techniques are disclosed for coding and decoding video data using object recognition and object modeling as a basis of coding and error recovery. A video decoder may decode coded video data received from a channel. The video decoder may perform object recognition on decoded video data obtained therefrom, and, when an object is recognized in the decoded video data, the video decoder may generate a model representing the recognized object. It may store data representing the model locally. The video decoder may communicate the model data to an encoder, which may form a basis of error mitigation and recovery. The video decoder also may monitor deviation patterns in the object model and associated patterns in audio content; if/when video decoding is suspended due to operational errors, the video decoder may generate simulated video data by analyzing audio data received during the suspension period and developing video data from the data model and deviation(s) associated with patterns detected from the audio data.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 12, 2020
    Assignee: APPLE INC.
    Inventors: Xing Wen, Dazhong Zhang, Peikang Song, Xiaosong Zhou, Sudeng Hu, Hsi-Jung Wu, Jae Hoon Kim
  • Patent number: 10587891
    Abstract: A format for use in encoding moving image data, comprising: a sequence of frames including plurality of the frames in which at least a region is encoded using motion estimation; a respective set of motion vector values representing motion vectors of the motion estimation for each respective one of these frames or each respective one of one or more regions within each of such frames; and at least one respective indicator associated with each of the respective frames or regions, indicating whether the respective motion vector values of the respective frame or region are encoded at a first resolution or a second resolution.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: March 10, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: You Zhou, Sergey Silkin, Sergey Sablin, Chih-Lung Lin, Ming-Chieh Lee, Gary J. Sullivan
  • Patent number: 10587887
    Abstract: A reference picture marking process and a reference picture list management process is handled in a unified reference picture marking and reference picture list management process. A new idle reference picture list may be used for handling reference pictures that are not used for reference in the current picture. Differential coding of picture order count may be used to increase coding efficiency. The reference picture management syntax structure may be sent in the picture parameter set for improved coding efficiency e.g. in regular GOP (group of pictures) arrangements.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: March 10, 2020
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Miska Matias Hannuksela, Srikanth Manchenahally Gopalakrishna
  • Patent number: 10575112
    Abstract: An audio signal processing apparatus includes a receiver which receives an audio signal including audio data for at least a first audio object associated with a three dimensional image. The audio signal also includes depth position data indicative of a target depth position for the first audio object. A determiner determines a visual rendering depth range for a target three dimensional display for presenting the three dimensional image, and a mapper for mapping the target depth position to a rendering depth position for the audio object where the mapping is dependent on the visual rendering depth range. The visual rendering depth range may specifically be a depth range in which the three dimensional display can accurately render objects, and the mapper may amend the positions of audio object sound sources such that these match the depth positions of corresponding visual objects presented by the three dimensional display.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: February 25, 2020
    Assignee: Koninklijke Philips N.V.
    Inventor: Werner Paulus Josephus De Bruijn
  • Patent number: 10567799
    Abstract: This disclosure describes techniques for simplifying depth inter mode coding in a three-dimensional (3D) video coding process, such as 3D-HEVC. The techniques include generating a motion parameter candidate list, e.g., merging candidate list, for a current depth prediction unit (PU). In some examples, the described techniques include determining that a sub-PU motion parameter inheritance (MPI) motion parameter candidate is unavailable for inclusion in the motion parameter candidate list for the current depth PU if motion parameters of a co-located texture block to a representative block of the current depth PU are unavailable. In some examples, the described techniques include deriving a sub-PU MPI candidate for inclusion in the motion parameter candidate list for the current depth PU only if a partition mode of the current depth PU is 2N×2N.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: February 18, 2020
    Assignee: Qualcomm Incorporated
    Inventors: Hongbin Liu, Ying Chen
  • Patent number: 10506250
    Abstract: Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 10, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tammy Lee, Jianle Chen
  • Patent number: 10491917
    Abstract: A device for decoding video data determines a block of video data is coded in an inter prediction mode; implicitly determines that a decoder-side motion vector derivation (DMVD) mode is enabled for the block of video data; determines motion information for the block of video data; uses the motion information to determine a reference block in accordance with the DMVD mode; and generates a predictive block for the block of video data based on the reference block.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: November 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Yi-Wen Chen, Kai Zhang, Xiang Li, Jianle Chen, Wei-Jung Chien, Hsiao-Chiang Chuang, Marta Karczewicz
  • Patent number: 10484685
    Abstract: An exemplary method for intelligent compression defines a threshold value for a key performance indicator. Based on the key performance indicator value, data blocks generated by a producer component may be scaled down to reduce power and/or bandwidth consumption when being compressed according to a lossless compression module. The compressed data blocks are then stored in a memory component along with metadata that signals the scaling factor used prior to compression. Consumer components later retrieving the compressed data blocks from the memory component may decompress the data blocks and upscale, if required, based on the scaling factor signaled by the metadata.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: November 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Serag Gadelrab, Chinchuan Chiu, Moinul Khan, Kyle Ernewein, Tom Longo, Simon Booth, Meghal Varia, Milivoje Aleksic, King-Chung Lai
  • Patent number: 10460435
    Abstract: A pattern inspection method includes calculating a first coefficient of a filter function by using data of optical images of plural small regions selected and data of developed images of the plural small regions based on design data; calculating a second coefficient of a filter function by using data of an optical image of a reference small region selected and data of a developed image of the reference small region selected; and determining, for each pixel, whether there exists a pixel for which a difference, between a first temporary reference image to be compared with the optical image of the reference small region generated using the filter function in which the first coefficient is defined and a second temporary reference image to be compared with the optical image of the reference small region generated using the filter function in which the second coefficient is defined, is larger than a threshold.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: October 29, 2019
    Assignee: NuFlare Technology, Inc.
    Inventor: Takafumi Inoue
  • Patent number: 10440375
    Abstract: Methods of adaptive transform type based on transform unit (TU) size for enhancement layer (EL) coding and multiple motion candidates for EL coding based on corresponding base layer (BL) video data are provided. One method selects a transform type from multiple allowable transform types based on the TU size and applies the selected transform type to the transform units of the inter-layer prediction processed data. Another method derives multiple motion candidates for the EL video data coded in Merge mode or Inter mode based on motion information associated with the corresponding BL video data.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: October 8, 2019
    Assignee: MediaTek Inc.
    Inventors: Tzu-Der Chuang, Zhenzhong Chen, Shan Liu, Ching-Yeh Chen, Chih-Wei Hsu
  • Patent number: 10425650
    Abstract: A scalable video signal decoding method according to the present invention comprises determining a corresponding picture of a reference layer used for inter-layer prediction of a current picture using interlayer reference information on the current picture of a current layer, generating an interlayer reference picture by up-sampling the determined corresponding picture, generating a reference picture list including a temporal reference picture and the interlayer reference picture, and performing an inter prediction of the current picture on the basis of the reference picture list.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: September 24, 2019
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Joo Young Kim
  • Patent number: 10410350
    Abstract: A method of using a computer to semantically segment an image using a convolutional neural network system where a processor configured to convolve an input image with a plurality of filters and outputting a first output volume, pool the first output volume and creating a first activation map, determine the level of influence of the first activation map on the semantic segmentation, up-pool the first activation map to form an output image having a same number of pixels as the input image, output a probabilistic segmentation result, labeling each pixel's probability that it is a particular label, and the determination of the level of influence of the first activation map on the semantic segmentation is done using a gate layer that is positioned between a pooling layer and an up-pooling layer.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: September 10, 2019
    Assignee: Rakuten, Inc.
    Inventors: Jiu Xu, Bjorn Stenger
  • Patent number: 10402634
    Abstract: According to an embodiment, an information processing device includes a memory and processing circuitry. The processing circuitry is configured to receive an image and area information indicating a first area. The processing circuitry is configured to detect an object from the image. The processing circuitry is configured to, based on positional relationship between the first area and the object, estimate probability of occurrence of an event in the first area.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: September 3, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Tatsuo Kozakaya
  • Patent number: 10390013
    Abstract: A method for decoding video includes receiving a frame of the video that includes at least one slice and at least one tile. Each of the at least one slice and the at least one tile are not all aligned with one another. Each of the at least one slice is characterized that it is decoded independently of the other the at least one slice. Each of the at least one tile is characterized that it is a rectangular region of the frame and having coding units for the decoding arranged in a raster scan order. The at least one tile of the frame are collectively arranged in a raster scan order of the frame.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: August 20, 2019
    Assignee: Velos Media, LLC
    Inventors: Kiran Misra, Christopher A. Segall
  • Patent number: 10368086
    Abstract: The present application discloses an image coding/decoding method, device, and system, where an encoder performs singular vector decomposition on a prediction block corresponding to a to-be-coded image block, to obtain eigenvector matrices U and V of the prediction block; and performs coding processing on residual data according to the eigenvector matrices U and V of the prediction block, where the residual data is a difference between a pixel value of the to-be-coded image block and a pixel value of the corresponding prediction block. This can reduce identifier load of a coded bit stream.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: July 30, 2019
    Assignees: Huawei Technologies Co., Ltd., Tsinghua University
    Inventors: Xiaoran Cao, Yun He, Xiaozhen Zheng, Jianhua Zheng
  • Patent number: 10326993
    Abstract: A video decoder, encoder, and corresponding methods for processing video data for an image block and a particular reference picture index to predict the image block are disclosed that utilize adaptive weighting of reference pictures to enhance video compression, where a decoder includes a reference picture weighting factor unit for determining a weighting factor corresponding to the particular reference picture index; an encoder includes a reference picture weighting factor assignor for assigning a weighting factor corresponding to the particular reference picture index; and a method for decoding includes receiving a reference picture index with the data that corresponds to the image block, determining a weighting factor for each received reference picture index, retrieving a reference picture for each index, motion compensating the retrieved reference picture, and multiplying the motion compensated reference picture by the corresponding weighting factor to form a weighted motion compensated reference picture
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: June 18, 2019
    Assignee: InterDigital VC Holdings, Inc.
    Inventor: Jill MacDonald Boyce
  • Patent number: 10306265
    Abstract: In general, this disclosure describes techniques for simplifying SDC coding of large intra-prediction blocks, such as 64×64 blocks, in a 3D video coding process, such as 3D-HEVC. In some examples, the techniques may include processing 64×64 intra-prediction blocks as four 32×32 intra-prediction blocks in intra SDC. Processing large intra-prediction blocks as multiple, smaller intra-prediction blocks in intra SDC may reduce maximum buffer size requirements in the intra SDC process.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 28, 2019
    Assignee: Qualcomm Incorporated
    Inventors: Hongbin Liu, Ying Chen
  • Patent number: 10291930
    Abstract: Methods and apparatus are provided for uni-prediction of self-derivation of motion estimation. An apparatus includes a video encoder (300) for encoding at least a portion of a picture. The video encoder includes a self derivation motion estimator (333) for performing self derivation motion estimation for the portion. The self derivation motion estimation is used for selectively performing uni-prediction or bi-prediction for the portion based on one or more criterion.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: May 14, 2019
    Assignee: INTERDIGITAL MADISON PATENT HOLDINGS
    Inventors: Liwei Guo, Peng Yin, Yunfei Zheng, Xiaoan Lu, Qian Xu, Joel Sole
  • Patent number: 10264286
    Abstract: An apparatus configured to code video information in a bitstream includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a plurality of video layers in the bitstream, the plurality of video layers in the bitstream divided into a plurality of bitstream partitions, herein each bitstream partition contains at least one of the plurality of video layers. The processor is configured to process a bitstream conformance parameter associated with a first bitstream partition of the plurality of bitstream partitions, wherein the bitstream conformance parameter is applicable to the first bitstream partition but not to another portion of the bitstream not encompassed by the first bitstream partition. The processor may encode or decode the video information in the bitstream.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: April 16, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Adarsh Krishnan Ramasubramonian, Ye-Kui Wang
  • Patent number: 10225573
    Abstract: A current block of a video frame can be encoded or decoded using parameterized motion models. First and second parameterized motion models are identified. The first parameterized motion model corresponds to a first motion model type, and the second parameterized motion model corresponds to a second motion model type. The first and second parameterized motion models are associated with one or more reference frames. One of the first or second parameterized motion models is selected along with an associated reference frame, such as based on a lowest prediction error. A motion vector is generated between the current block and the selected reference frame by warping pixels of the current block to a warped patch of the selected reference frame according to the selected parameterized motion model. A prediction block is generated using the motion vector, and the current block is encoded or decoded using the prediction block.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: March 5, 2019
    Assignee: GOOGLE LLC
    Inventors: Debargha Mukherjee, James Bankoski, Yue Chen, Sarah Parker
  • Patent number: 10205941
    Abstract: A method of coding 4:2:2 or 4:4:4 video data comprises predicting luminance and/or chrominance samples of an image from other respective reference samples derived from the same image according to a prediction mode associated with a sample to be predicted, the prediction mode being selected for each of a plurality of blocks of samples, from a set of two or more candidate prediction modes; detecting differences between the samples and the respective predicted samples; selecting a frequency-separation transform from two or more candidate frequency separation transforms according to the prediction mode associated with a current block of samples using a mapping between transform and prediction mode, the mapping between different, as between chrominance and luminance samples, for at least the 4:4:4 format; and encoding the detected differences by frequency-separating the differences, using the selected frequency-separation transform.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: February 12, 2019
    Assignee: Sony Corporation
    Inventors: James Alexander Gamei, Nicholas Ian Saunders, Karl James Sharman, Paul James Silcock
  • Patent number: 10187650
    Abstract: Video encoders and decoders and video encoding and decoding methods are provided. A video encoder includes an input buffer configured to receive a video data stream and to supply current frame data, a frame buffer configured to store reconstructed frame data, and an encoder circuit configured to read reference frame data from the frame buffer, to encode the current frame data received from the input buffer using the reference frame data and to write the reconstructed frame data to the frame buffer. The encoder circuit may be configured to write the reconstructed frame data by overwriting the reference frame data in the frame buffer.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: January 22, 2019
    Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Sumit Johar, SurinderPal Singh
  • Patent number: 10176090
    Abstract: Providing memory bandwidth compression using adaptive compression in central processing unit (CPU)-based systems is disclosed. In one aspect, a compressed memory controller (CMC) is configured to implement two compression mechanisms: a first compression mechanism for compressing small amounts of data (e.g., a single memory line), and a second compression mechanism for compressing large amounts of data (e.g., multiple associated memory lines). When performing a memory write operation using write data that includes multiple associated memory lines, the CMC compresses each of the memory lines separately using the first compression mechanism, and also compresses the memory lines together using the second compression mechanism. If the result of the second compression is smaller than the result of the first compression, the CMC stores the second compression result in the system memory. Otherwise, the first compression result is stored.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: January 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Colin Beaton Verrilli, Natarajan Vaidhyanathan, Mattheus Cornelis Antonius Adrianus Heddes
  • Patent number: 10158871
    Abstract: A video processing system provided with video encoding apparatus 1 and video decoding apparatus 2. The encoding apparatus 1 outputs a maximum delay time that is incurred by backward prediction, in addition to encoded data D1 resulting from encoding of video data D0. The decoding apparatus 2 effects input of the maximum delay time that is incurred by backward prediction, in addition to encoded data D1 from the encoding apparatus 1. Then the decoding apparatus 2 decodes the encoded data D1 with reference to the input maximum delay time to generate motion video data D2.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 18, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Satoru Adachi, Choong Seng Boon, Sadaatsu Kato, Minoru Etoh, Thiow Keng Tan
  • Patent number: 10148967
    Abstract: An image coding method includes: generating a predicted block; calculating a residual block; calculating quantized coefficients by performing transform and quantization on the residual block; calculating a coded residual block by performing inverse quantization and inverse transform on the quantized coefficients; generating a temporary coded block; determining whether or not an offset process is required, to generate first flag information indicating a result of the determination; executing the offset process on the temporary coded block when it is determined that the offset process is required; and performing variable-length coding on the quantized coefficients and the first flag information.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: December 4, 2018
    Assignee: SUN PATENT TRUST
    Inventors: Toru Matsunobu, Takahiro Nishi, Youji Shibahara, Hisao Sasai, Kyoko Tanikawa, Toshiyasu Sugio
  • Patent number: 10123023
    Abstract: In a moving picture coding device that codes a moving picture using motion compensation prediction in units of blocks acquired by dividing each picture of the moving picture, a prediction mode determiner derives motion information of a coding target block. A motion compensation predictor changes the derived motion information for the coding target block having a size smaller than or equal to a certain size when the coding target block has the size smaller than or equal to the certain size. The motion compensation predictor constructs a prediction signal of the coding target block through the motion compensation prediction using the derived motion information when the coding target block has a size larger than the certain size or using the changed motion information when the coding target block has the size smaller than or equal to the certain size.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: November 6, 2018
    Assignee: JVC KENWOOD Corporation
    Inventors: Shigeru Fukushima, Hideki Takehara, Motoharu Ueda
  • Patent number: 10116944
    Abstract: A video encoding device includes: first video encoding means for encoding an input image to generate first coded data; a buffer for storing the input image; coded data transcoding means for transcoding the first coded data generated by the first video encoding means, to generate second coded data; and second video encoding means for generating a prediction signal based on the second coded data supplied from the coded data transcoding means. The first video encoding means includes: dividing means for dividing the input image into a plurality of image areas; and at least one encoding means corresponding to the image areas each of which is made up of a plurality of blocks, and for performing encoding in units of blocks. The encoding means also encodes a block that is included in an image area adjacent with a dividing line in between and is located near the dividing line.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: October 30, 2018
    Assignee: NEC CORPORATION
    Inventors: Takayuki Ishida, Kensuke Shimofure, Naoya Tsuji, Suguru Nagayama, Keiichi Chono
  • Patent number: 10091500
    Abstract: One video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for performing motion estimation. Another video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for deciding a target coding parameter associated with motion estimation.
    Type: Grant
    Filed: March 2, 2014
    Date of Patent: October 2, 2018
    Assignee: MEDIATEK INC.
    Inventors: Cheng-Tsai Ho, Chi-Cheng Ju, Ding-Yun Chen
  • Patent number: 10085018
    Abstract: An image encoding apparatus capable of reducing the computational complexity in intra-prediction of an encoding optimization process is provided. The image encoding apparatus includes a reference pixel generation unit that generates reference pixels from predicted pixels of neighboring pixels and pixels of an original image for intra-prediction directions, a pseudo intra-predicted pixel generation unit that generates pseudo intra-predicted pixels from the reference pixels and the intra-prediction directions, a coding cost calculation unit that calculates coding costs for the intra-prediction directions from errors between the pseudo intra-predicted pixels and the pixels of the original image and generated bit amounts when the pseudo intra-predicted pixels are generated, and an intra-prediction direction setting unit that sets an intra-prediction direction corresponding to the lowest coding cost among the coding costs as an optimal intra-prediction direction.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: September 25, 2018
    Assignee: Nippon Telegraph And Telephone Corporation
    Inventors: Mayuko Watanabe, Masaki Kitahara, Atsushi Shimizu
  • Patent number: 10070126
    Abstract: Method and apparatus for intra prediction mode coding and decoding are disclosed. In one embodiment, the encoding and decoding process assigns individual indices and codewords to DC mode and Planar mode respectively. The flag is set if the current intra prediction mode is equal to any of one or more neighboring intra prediction modes. Variable length codes are designed for a remaining mode set. If the flag is not set, the currently intra prediction mode is encoded using the variable length codes. In another embodiment, multiple most probable modes are used. If the current intra prediction mode is not equal to any of the multiple most probable modes, the current intra prediction mode is encoded using variable length codes designed for the corresponding remaining modes according the ranking order of the remaining modes.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: September 4, 2018
    Assignee: HFI INNOVATION INC.
    Inventors: Mei Guo, Xun Guo, Shaw-Min Lei
  • Patent number: 10070141
    Abstract: In an encoding process, video data are represented as a bitstream of a quantized base layer and at least two enhancement layers, with each picture in each layer identified by a start code. The base layer, plus a number of enhancement layers capable of being transmitted by the communication channel's bandwidth, are transmitted on the communication channel.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: September 4, 2018
    Assignee: INTEL CORPORATION
    Inventors: Wen-Hsiao Peng, Yen-Kuang Chen
  • Patent number: 10063872
    Abstract: A distributed video encoding system splits an input video into video segments. The video segments are encoded using multiple video encoding nodes. Prior to the process of splitting the sequence into video segments, the video is analyzed to generate a dependency map. Intelligent segmentation is performed using the dependency map so that each video segment includes all the video frames from which other video frames within that segment have been encoded in the input video. For example, picture headers are inspected to determine the temporal distance of the farthest past and future reference frames used for encoding frames of a video.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: August 28, 2018
    Assignee: Facebook, Inc.
    Inventors: Michael Hamilton Coward, Amit Puntambekar, Thomas George
  • Patent number: 10063860
    Abstract: In a moving picture coding device that codes a moving picture using motion compensation prediction in units of blocks acquired by dividing each picture of the moving picture, a prediction mode determiner derives motion information of a coding target block. A motion compensation predictor changes the derived motion information for the coding target block having a size smaller than or equal to a certain size when the coding target block has the size smaller than or equal to the certain size. The motion compensation predictor constructs a prediction signal of the coding target block through the motion compensation prediction using the derived motion information when the coding target block has a size larger than the certain size or using the changed motion information when the coding target block has the size smaller than or equal to the certain size.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: August 28, 2018
    Assignee: JVC KENWOOD Corporation
    Inventors: Shigeru Fukushima, Hideki Takehara, Motoharu Ueda
  • Patent number: 10057590
    Abstract: A hybrid video encoding method and system using a software engine and a hardware engine. The software engine receives coding unit data associated with a current picture, and performs a first part of the video encoding operation by executing instructions. The first part of the video encoding operation generates an inter predictor and control information corresponding to the coding unit data of the current picture. The first part of the video encoding operation stores the inter predictor into an off-chip memory. The hardware engine performs a second part of the video encoding operation according to the control information. The second part of the video encoding operation receives the inter predictor, and subtracts the inter predictor from the coding unit data to generate a residual signal.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: August 21, 2018
    Assignee: MEDIATEK INC.
    Inventors: Chao-Chih Huang, Ting-An Lin, Shen-Kai Chang, Han-Liang Chou
  • Patent number: 10026155
    Abstract: An image-processor includes: a discrete-motion-vector calculator calculating motion vectors of individual measurement regions and confidences thereof based on a standard image and a reference image or a combined image generated based on the reference image; a global-vector calculator separately calculating, based on the motion vectors and the confidences thereof, a global vector of the standard image, a confidence thereof, a local vector of a processing target region in the standard image, and a confidence of the local vector; a local-vector interpolator; a local-vector-confidence interpolator; a motion-vector selector selecting the local vector or the global vector based on at least one of the local vector, the confidence thereof, the global vector, and the confidence thereof; a motion-compensated-image generator generating, based on the selected vector, a motion-compensated image of the reference image or the combined image; and a blender weighted adding the processing target region and the motion-compensat
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: July 17, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Eiji Furukawa
  • Patent number: 10025699
    Abstract: A system and method for reviewing of warning generated during static analysis of a clustered software code by identifying, common point warnings and unique warnings from warnings associated with a software code, and further identifying, a top of must overlapped function for each of the common point warnings. Generating, one or more groups of the common point warnings based on the top of must overlapped function, and assigning, the top of must overlapped function as a constraint for corresponding group of common point warnings. Eliminating, warnings from each of the one or more groups using a review output wherein the review output is identified by reviewing a common point warning from the one or more group under the constraint such that the review of the common point warning under the constraint satisfy for review of all remaining for reviews of all remaining common point warnings of the group.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 17, 2018
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventor: Tukaram B. Muske
  • Patent number: 10021384
    Abstract: Methods and apparatuses for encoding and decoding an intra prediction mode of a prediction unit of a chrominance component based on an intra prediction mode of a prediction unit of a luminance component are provided. When an intra prediction mode of a prediction unit of a luminance component is the same as an intra prediction mode in an intra prediction mode candidate group of a prediction unit of a chrominance component, reconstructing the intra prediction mode candidate group of the prediction unit of the chrominance component by excluding or replacing an intra prediction mode of the prediction unit of the chrominance component which is same as an intra prediction mode of the prediction unit of the luminance component from the intra prediction mode candidate group, and encoding the intra prediction mode of the prediction unit of the chrominance component by using the reconstructed intra prediction mode candidate group.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: July 10, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Vadim Seregin, Jianle Chen, Sun-il Lee, Tammy Lee
  • Patent number: 9979973
    Abstract: A method for encoding a sequence of high dynamic range pictures is disclosed. The method comprises for each picture of the sequence: obtaining a value representative of an average luminance of the high dynamic range picture; processing the high dynamic range picture so that the value representative of an average luminance of the processed picture is closer to a defined average luminance value than is the value representative of an average luminance of the high dynamic range picture; decomposing the processed high dynamic range picture in at least one first low dynamic range picture and one second low dynamic range picture of lower resolution representative of a global illumination of the scene; and encoding the first and second low dynamic range pictures and a data function of said value representative of an average luminance of said high dynamic range picture.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: May 22, 2018
    Assignee: THOMSON Licensing
    Inventors: David Touze, Yannick Olivier, Dominique Thoreau, Catherine Serre
  • Patent number: 9965890
    Abstract: Improved techniques for generating video content are disclosed. In some embodiments, a frame is first rendered using a first rendering option. It is then determined whether the frame is an independent frame (I-frame) or a predictive frame (P-frame). In the event that the frame is an I-frame, the frame is rendered using a second rendering option. In the event that the frame is a P-frame, the frame as rendered by the first rendering option and a previous frame as rendered by the first rendering option are used to determine prediction error. The first rendering option comprises a lower computational complexity than the second rendering option.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 8, 2018
    Assignee: Outward, Inc.
    Inventors: Manu Parmar, Zhanpeng Feng, Clarence Chui
  • Patent number: 9961361
    Abstract: Several methods and systems for encoding pictures are disclosed. In an embodiment, a method comprises dividing an LCU of a picture into a plurality of MERs having size equal to or less than a predetermined size. For one or more MERs of the plurality of MERs, a number of first motion searches are performed for determining a first quad-tree based on a cost function associated with a first plurality of PUs of the one or more MERs. A number of second motion searches are performed for the LCU, for determining a second quad-tree, based on the cost function associated with a second plurality of PUs of the LCU. The first quad-tree or the second quad-tree is selected for performing encoding of the picture based on a comparison of a first cost of the first quad-tree with a second cost of the second quad-tree.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: May 1, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Naveen Srinivasamurthy, Soyeb Nagori
  • Patent number: 9940697
    Abstract: Systems and methods for capturing and/or processing of panoramic imaging content using spatial redundancy-based mapping. Panoramic imaging content may be processed using a processing pipeline that may operate on a portion of the image. Images may be transformed prior to processing. Image transformation may introduce distortion and/or data redundancy. Image partitioning for the pipeline processing may be configured based on spatial redundancy associated with the transformation. Windowing operation may include partitioning an image using non-rectangular and/or non-equal windows.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: April 10, 2018
    Assignee: GoPro, Inc.
    Inventors: Balineedu Chowdary Adsumilli, Adeel Abbas, David Newman
  • Patent number: RE48074
    Abstract: An image encoding device includes a first prediction parameter determination section (53) for selecting, for each of prediction units belonging to a first group, a prediction parameter from a basic set; a second prediction parameter determination section (55) for selecting, for each of prediction units belonging to a second group, a prediction parameter from a reduced set (i) including at least a part of the prediction parameter(s) selected by the first prediction parameter determination section (53) and (ii) is constituted by a prediction parameter(s), the number of which is not more than the number of prediction parameters included in the basic set; and a prediction parameter encoding section (243) for encoding (i) information indicating which one of prediction parameters is selected by the first prediction parameter determination section (53) and (ii) information indicating which one of prediction parameters is selected by the second prediction parameter determination section (55).
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: June 30, 2020
    Assignee: Velos Media, LLC
    Inventor: Tomoyuki Yamamoto