公开(公告)号：US10771815B2

公开(公告)日：2020-09-08

申请号：US15764599

申请日：2016-09-29

申请人： LG Electronics Inc. ,  University of Southern California

发明人： Yung-Hsuan Chao ,  Sehoon Yea ,  Antonio Ortega

IPC分类号： H04N19/61 ,  H04N19/117 ,  H04N19/96 ,  H04N19/147 ,  H04N19/12 ,  H04N19/90 ,  H04N19/176 ,  H04N19/14 ,  H04N19/625 ,  H04N19/124 ,  H04N19/91 ,  H04N19/11 ,  H04N19/13 ,  H04N19/196 ,  H04N19/107 ,  H04N19/50

摘要： The present invention provides a method for encoding a video signal on the basis of a graph-based lifting transform (GBLT), comprising the steps of: detecting an edge from an intra residual signal; generating a graph on the basis of the detected edge, wherein the graph includes a node and a weight link; acquiring a GBLT coefficient by performing the GBLT for the graph; quantizing the GBLT coefficient; and entropy-encoding the quantized GBLT coefficient, wherein the GBLT includes a partitioning step, a prediction step, and an update step.

公开(公告)号：US10721483B2

公开(公告)日：2020-07-21

申请号：US16173435

申请日：2018-10-29

申请人： Sun Patent Trust

发明人： Toru Matsunobu ,  Takahiro Nishi ,  Youji Shibahara ,  Hisao Sasai ,  Kyoko Tanikawa ,  Toshiyasu Sugio

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/176 ,  H04N19/46 ,  H04N19/13 ,  H04N19/593 ,  H04N19/117 ,  H04N19/17 ,  H04N19/61 ,  H04N19/154 ,  H04N19/124 ,  H04N19/172 ,  H04N19/50 ,  H04N19/93 ,  H04N19/90

摘要： 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.

公开(公告)号：US20200177927A1

公开(公告)日：2020-06-04

申请号：US16204792

申请日：2018-11-29

申请人： Apple Inc.

发明人： Xiaohua YANG ,  Alexandros TOURAPIS ,  Dazhong ZHANG ,  Hang YUAN ,  Hsi-Jung WU ,  Jae Hoon KIM ,  Jiefu ZHAI ,  Ming CHEN ,  Xiaosong ZHOU

IPC分类号： H04N19/90 ,  H04N21/2343 ,  G06F3/01 ,  H04N19/597 ,  H04N19/52

摘要： In communication applications, aggregate source image data at a transmitter exceeds the data that is needed to display a rendering of a viewport at a receiver. Improved streaming techniques that include estimating a location of a viewport at a future time. According to such techniques, the viewport may represent a portion of an image from a multi-directional video to be displayed at the future time, and tile(s) of the image may be identified in which the viewport is estimated to be located. In these techniques, the image data of tile(s) in which the viewport is estimated to be located may be requested at a first service tier, and the other tile in which the viewport is not estimated to be located may be requested at a second service tier, lower than the first service tier.

公开(公告)号：US10602153B2

公开(公告)日：2020-03-24

申请号：US14852472

申请日：2015-09-11

申请人： Facebook, Inc.

发明人： Michael Hamilton Coward ,  Amit Puntambekar ,  Wurzel David Parsons-Keir

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/146 ,  H04N19/436 ,  H04N19/30 ,  H04N19/90

摘要： Various of the disclosed embodiments relate to multiple video encoders that are used to simultaneously encode a video using encoders configured using different encoding parameters. A segment selector selects an encoded version of the encoded video segment using operational criteria such as video quality and bandwidth. A configuration determination module may analyze the video segment to make a decision about which encoding parameter configurations may be suitable for encoding the video segment. The configuration determination module may be trainable, based on past encoding results.

公开(公告)号：US20200065064A1

公开(公告)日：2020-02-27

申请号：US16106708

申请日：2018-08-21

申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

发明人： Graham KIRSCH

IPC分类号： G06F5/01 ,  H04N19/182 ,  H04N19/124 ,  H04N19/90

摘要： An imaging system may include an array of pixels that each generates pixel data and a pixel data compression system. The pixel data compression system may include pixel data to variable-precision floating-point conversion circuitry, discrete wavelet transform circuitry, encoding circuitry, and serialization circuitry. The pixel data to variable-precision floating-point conversion circuitry may generate bits associated with a floating-point representation of the pixel data. The bits associated with the floating-point representation may include a sign component, an exponent component, and a mantissa component. The exponent component may be offset by a value to generate the floating-point value associated with the pixel data.

公开(公告)号：US20190342565A1

公开(公告)日：2019-11-07

申请号：US16411663

申请日：2019-05-14

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Yoshiyuki KUROKAWA

IPC分类号： H04N19/423 ,  H04N19/90 ,  H01L29/786 ,  G06T9/00 ,  H04N19/43 ,  H04N19/543 ,  G06N3/08 ,  G06N3/063 ,  G11C27/00 ,  G06N3/04 ,  H01L27/12 ,  H04N19/527 ,  H01L29/24 ,  G11C27/02

摘要： A semiconductor device with a novel structure is provided. Input neuron circuits, hidden neuron circuits, and output neuron circuits are hierarchically connected to one another through plural synapse circuits. Each synapse circuit includes an analog memory which stores data corresponding to a connection strength between the input neuron circuit and the hidden neuron circuit or between the hidden neuron circuit and the output neuron circuit, a writing circuit which changes the data in the analog memory, and a weighting circuit which outputs an output signal obtained by weighting an input signal in accordance with data in the analog memory. The analog memory is formed using a transistor including an oxide semiconductor having extremely low off-state current. It is not necessary to mount a large-scale capacitor for holding data and to recover analog data by regular refresh operation; thus, reduction in a chip area and reduction in power consumption are possible.

公开(公告)号：US20190281348A1

公开(公告)日：2019-09-12

申请号：US16415273

申请日：2019-05-17

申请人： AT&T Intellectual Property I, L.P.

发明人： Ahmad Ansari

IPC分类号： H04N21/4363 ,  H04N21/4402 ,  H04N19/90 ,  H04N21/258 ,  H04N21/41

摘要： A system that incorporates teachings of the present disclosure may include, for example, a gateway adapted to decode encoded media streams to obtain decoded media streams. The decoded media streams are provided to media devices via wireless transmissions, wherein each media device includes a wireless high definition multimedia interface to receive via the wireless transmissions a respective decoded media stream. The respective decoded audio/video stream is displayed without accessing a media processor at a respective media device of the plurality of media devices. Other embodiments are disclosed.

公开(公告)号：US20190200038A1

公开(公告)日：2019-06-27

申请号：US16287505

申请日：2019-02-27

申请人： Vid Scale, Inc.

发明人： Yuwen He ,  Yan Ye ,  Xiaoyu Xiu

IPC分类号： H04N19/513 ,  H04N19/94 ,  H04N19/90 ,  H04N19/186 ,  H04N19/70 ,  H04N19/593 ,  H04N19/147 ,  H04N19/463

CPC分类号： H04N19/521 ,  H04N19/147 ,  H04N19/186 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/90 ,  H04N19/94

摘要： Systems and methods are described for encoding and decoding video using derived block vectors as predictors in intra block copy mode. In an exemplary encoding method, an encoder identifies at least a first candidate block vector for the prediction of an input video block, where the first candidate block vector points to a first candidate block. The encoder then identifies a first predictive vector (e.g. a block vector or a motion vector) that was used to encode the first candidate block. From the first candidate block vector and the first predictive vector, the encoder generates a derived predictive vector from the first candidate block vector and the first predictive vector. The encoder then encodes the video block in the bit stream using the derived predictive vector for the prediction of the input video block.

公开(公告)号：US20190199901A1

公开(公告)日：2019-06-27

申请号：US16228970

申请日：2018-12-21

申请人： CANON KABUSHIKI KAISHA

发明人： Emi Kondo ,  Tatsuya Nishiguchi ,  Tomoaki Takahashi ,  Yosuke Takagi

IPC分类号： H04N5/235 ,  H04N5/93 ,  H04N5/355 ,  H04N19/90

CPC分类号： H04N5/2351 ,  G06F3/14 ,  G06T5/007 ,  G06T2207/20208 ,  G09G2340/02 ,  G09G2340/0428 ,  G09G2340/06 ,  H04N5/2355 ,  H04N5/355 ,  H04N5/93 ,  H04N19/90 ,  H04N19/98

摘要： An electronic apparatus includes: a connecting unit (connector) that connects with an external apparatus; a setting unit sets a connection mode to any of a plurality of connection modes, including a first connection mode in which an image having a gradation resolution which is not higher than a first gradation resolution is outputted, and a second connection mode in which an image having a gradation resolution which is higher than the first gradation resolution is outputted; and a control unit controls so that in a case where the connection is in the second connection mode and an instruction to switch a first screen including a captured image to a second screen not including a captured image is received, the set connection mode is switched from the second connection mode to the first connection mode, and the second screen is outputted from the connecting unit.

公开(公告)号：US10218988B2

公开(公告)日：2019-02-26

申请号：US13403908

申请日：2012-02-23

申请人： Walter E. Donovan ,  Tyson J. Bergland

发明人： Walter E. Donovan ,  Tyson J. Bergland

IPC分类号： H04N19/186 ,  G06T9/00 ,  H04N19/70 ,  H04N19/593 ,  H04N19/90 ,  H04N19/124 ,  H04N19/176 ,  H04N19/182

摘要： A method for performing image decompression. The method includes identifying a pixel in an image, wherein the image comprises a plurality of tiles including color data that is displayed by a plurality of pixels, wherein each tile is associated with a base value, a delta value, and a plurality of indices. One or more tiles associated with the pixel are identified. An interpolated base is determined by interpolating decompressed bases of the one or more tiles. An interpolated delta is determined by interpolating deltas of the one or more tiles. An index is determined for the pixel. A color value is determined for the pixel based on the interpolated base, interpolated delta, and the index.