公开(公告)号：US20190253708A1

公开(公告)日：2019-08-15

申请号：US16274839

申请日：2019-02-13

申请人： INNOTIVE CORPORATION ,  NATIONAL COMPUTERIZATION AGENCY

发明人： Sung-Min KIM

IPC分类号： H04N19/119 ,  H04N19/17 ,  H04N19/164 ,  H04N19/162 ,  H04N19/46 ,  H04N19/12 ,  H04N19/60 ,  H04N19/136

CPC分类号： H04N19/119 ,  H04N19/12 ,  H04N19/136 ,  H04N19/162 ,  H04N19/164 ,  H04N19/17 ,  H04N19/46 ,  H04N19/60

摘要： A transferring system for huge and high quality images on network and a method thereof are disclosed, wherein various individual image data are converted into high quality image data to be converted into layered image data, and classified into a plurality of sub cells, then stored in database as a compressed form. A client system connected to a server requires information, immediately downloads the required information, releases the compression, and then displays on a screen real time. In the present invention, a user can fast see only his wanted part since images of a newspaper and a magazine are converted as they were. Also, various additional information is provided with image, thereby providing multimedia digital publication services on wire or wireless network.

公开(公告)号：US20190213758A1

公开(公告)日：2019-07-11

申请号：US16357882

申请日：2019-03-19

申请人： EMC IP Holding Company LLC

发明人： Moses Charikar ,  Deepa Ramakrishna

IPC分类号： G06T9/00 ,  H04N19/88 ,  H04N19/182 ,  H04N19/13 ,  H04N19/60 ,  H04N19/146

CPC分类号： G06T9/00 ,  G06T9/005 ,  H04N19/13 ,  H04N19/146 ,  H04N19/182 ,  H04N19/60 ,  H04N19/88

摘要： Lossless compression of fragmented image data is disclosed. In some embodiments, a stream of information comprising data elements having statistical characteristics is received. An encoded output is produced by an encoder comprising a data compressor that implements a variable length code that is adapted to the statistical characteristics of the data elements. The output and information from which the variable length code can be derived are stored.

公开(公告)号：US20190208227A1

公开(公告)日：2019-07-04

申请号：US16272325

申请日：2019-02-11

申请人： Sony Corporation

发明人： Kazushi SATO

IPC分类号： H04N19/82 ,  H04N19/159 ,  H04N19/61 ,  H04N19/60 ,  H04N19/117 ,  H04N19/70 ,  H04N19/14 ,  H04N19/122 ,  H04N19/176

CPC分类号： H04N19/82 ,  H04N19/117 ,  H04N19/122 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/86

摘要： An image encoding apparatus that performs filter processing on an image using a number of taps of filter coefficients set based on an orthogonal transform size, the number of taps of filter coefficients being further set based on at least one flatness measure of the image; and encodes encode the image obtained by performing the filter processing, wherein the filter coefficients and the number of taps of filter being set concurrently.

公开(公告)号：US20190191143A1

公开(公告)日：2019-06-20

申请号：US16285007

申请日：2019-02-25

申请人： Dolby Laboratories Licensing Corporation

发明人： Walter J. Husak ,  David Ruhoff ,  Alexandros Tourapis ,  Athanasios Leontaris

IPC分类号： H04N13/161 ,  H04N19/00 ,  H04N19/59 ,  H04N19/60 ,  H04N13/194 ,  H04N19/597 ,  H04N13/15 ,  H04N13/139 ,  H04N19/61

CPC分类号： H04N13/161 ,  H04N13/139 ,  H04N13/15 ,  H04N13/194 ,  H04N19/00 ,  H04N19/59 ,  H04N19/597 ,  H04N19/60 ,  H04N19/61

摘要： Stereoscopic images are subsampled and placed in a “checkerboard” pattern in an image. The image is encoded in a monoscopic video format. The monoscopic video is transmitted to a device where the “checkerboard” is decoded. Portions of the checkerboard (e.g., “black” portions) are used to reconstruct one of the stereoscopic images and the other portion of the checkerboard (e.g., “white” portions) are used to reconstruct the other image. The subsamples are, for example, taken from the image in a location coincident to the checkerboard position in which the subsamples are encoded.

公开(公告)号：US20190182508A1

公开(公告)日：2019-06-13

申请号：US15895314

申请日：2018-02-13

申请人： HFI Innovation Inc.

发明人： Liang ZHAO ,  Jicheng AN ,  Xin ZHAO ,  Xun GUO

IPC分类号： H04N19/60 ,  H04N19/186 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46 ,  H04N19/96

CPC分类号： H04N19/60 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/96

摘要： A method includes receiving the video bitstream from a media or a processor, recovering a first coded block flag (cbf) from the video bitstream based on a context-based adaptive binary arithmetic coding (CABAC) decoding process according to a first context formation, wherein the first cbf is associated with a first transform unit (TU) of a first color component, and the first cbf indicates whether the first TU of the first color component has at least one non-zero transform coefficient, and recovering a second cbf from the video bitstream based on the CABAC decoding process according to a second context formation, wherein the second cbf is associated with a second TU of a second color component, and the second cbf indicates whether the second TU of the second color component has at least one non-zero transform coefficient.

公开(公告)号：US20190089953A1

公开(公告)日：2019-03-21

申请号：US16119016

申请日：2018-08-31

申请人： Futurewei Technologies, Inc.

发明人： Roman Chernyak ,  Victor Stepin ,  Jose Alvarez ,  Shan Liu ,  Jiali Fu ,  Shan Gao ,  Haitao Yang ,  Yin Zhao ,  Jiantong Zhou

IPC分类号： H04N19/117 ,  H04N19/60 ,  H04N19/154 ,  H04N19/96 ,  H04N19/176

CPC分类号： H04N19/117 ,  H04N19/154 ,  H04N19/176 ,  H04N19/60 ,  H04N19/96

摘要： A mechanism of video coding is provided. The mechanism includes generating a reconstructed video frame. Noise suppression filter parameters are determined by partitioning the reconstructed video frame into blocks and matching the blocks to create patches. The noise suppression filter parameters are then determined based on the patches by creating a transformed matrix of patch frequencies. The noise suppression filter parameters include a noise estimation parameter that is a function of patch frequency. The noise suppression filter parameters are then employed to apply a noise suppression filter to the reconstructed video frame.

公开(公告)号：US20180352243A1

公开(公告)日：2018-12-06

申请号：US15994891

申请日：2018-05-31

申请人： Apple Inc.

发明人： Lars M. LINDBERG ,  Paul S. CHANG ,  Ali SAZEGARI

IPC分类号： H04N19/46 ,  H04N19/184 ,  H04N19/182 ,  H04N19/186 ,  H04N19/60

CPC分类号： H04N19/46 ,  H04N19/11 ,  H04N19/154 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/60 ,  H04N19/61 ,  H04N19/88

摘要： Disclosed are techniques for pre-processing an image for compression, e.g., one that includes a plurality of pixels, where each pixel is composed of sub-pixels that include at least an alpha sub-pixel. First, the alpha sub-pixels are separated into a first data stream. Next, invertible transformations are applied to the remaining sub-pixels to produce transformed sub-pixels. Next, for each row of the pixels: (i) identifying a predictive function that yields a smallest prediction differential total for the row, (ii) providing an identifier of the predictive function to a second data stream, and (iii) converting the transformed sub-pixels of the pixels in the row into prediction differentials based on the predictive function. Additionally, the prediction differentials for each of the pixels are encoded into first and second bytes that are provided to third and fourth data streams, respectively. In turn, the various data streams are compressed into a compressed image.

公开(公告)号：US20180332311A1

公开(公告)日：2018-11-15

申请号：US16043862

申请日：2018-07-24

申请人： Godo Kaisha IP Bridge 1

发明人： Satoshi KONDO ,  Shinya KADONO ,  Makoto HAGAI ,  Kiyofumi ABE

IPC分类号： H04N19/91 ,  H04L12/801 ,  H04N19/122 ,  H03M7/40 ,  H04N19/93 ,  H04N19/61 ,  H04N19/60 ,  H04N19/44 ,  H04N19/182 ,  H04N19/18 ,  H04N19/176 ,  H04N19/14 ,  H04N19/134 ,  H04N19/13 ,  H04N19/124 ,  H04N19/172

CPC分类号： H04N19/91 ,  H03M7/40 ,  H03M7/4006 ,  H04L47/29 ,  H04N19/122 ,  H04N19/124 ,  H04N19/13 ,  H04N19/134 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/93

摘要： The present invention is a variable length coding method for coding coefficients in each block which are obtained by performing frequency transformation on picture data of a moving picture per block having a predetermined size, and comprises: a coefficient scanning step of scanning the coefficients in the block in a predetermined order; and a coding step of coding the coefficients scanned in the coefficient scanning step into variable length codes in a predetermined order by switching a plurality of tables to be used for coding. Here, a direction of switching between the tables may be one-directional. Also, the coding may be non-arithmetic coding.

公开(公告)号：US20180332192A1

公开(公告)日：2018-11-15

申请号：US15700542

申请日：2017-09-11

申请人： Microsoft Technology Licensing, LLC

发明人： Naveen THUMPUDI

IPC分类号： H04N1/60 ,  H04N19/186 ,  H04N19/184 ,  H04N19/174

CPC分类号： H04N1/6008 ,  H04N1/64 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/60 ,  H04N19/625 ,  H04N2201/0084

摘要： Described are examples for storing advanced color images using legacy containers. An advanced color image can be obtained in a first image format comprising a number of parameters at a first bit depth per pixel. Values of the number of parameters of the advanced color image can be encoded into second values of one or more legacy containers, where each of the one or more legacy containers are of a second image format including the same number of parameters at a second bit depth per pixel. The advanced color image can be stored and/or communicated as the one or more legacy containers.

公开(公告)号：US20180278957A1

公开(公告)日：2018-09-27

申请号：US15762496

申请日：2016-09-23

申请人： SISVEL TECHNOLOGY S.R.L. ,  POLITECNICO DI TORINO

发明人： Giulia Fracastoro ,  Enrico Magli ,  Francesco Verdoja ,  Marco Grangetto

IPC分类号： H04N19/60 ,  H04N19/17 ,  G06K9/34 ,  G06T7/11 ,  H04N19/182

CPC分类号： H04N19/60 ,  G06K9/34 ,  G06K9/6224 ,  G06T7/11 ,  H04N19/17 ,  H04N19/182

摘要： A method and an apparatus for encoding and/or decoding digital images or video streams are provided, wherein the encoding apparatus includes a processor configured for reading at least a portion of the image, segmenting the portion of the image in order to obtain groups of pixels identified by borders information and containing at least two pixels having one or more homogeneous characteristics, computing, for each group of pixels, a weight map on the basis of the borders information associated to the group of pixels, a graph transform matrix on the basis of the weight map, and transform coefficients on the basis of the graph transform matrix (U) and of the pixels contained in the group of pixels.