公开(公告)号：US11917205B2

公开(公告)日：2024-02-27

申请号：US16919996

申请日：2020-07-02

申请人： TENCENT AMERICA LLC

发明人： Sehoon Yea ,  Arash Vosoughi ,  Shan Liu

IPC分类号： H04N19/62 ,  H04N19/64 ,  H04N19/96

CPC分类号： H04N19/62 ,  H04N19/64 ,  H04N19/96

摘要： A method of encoding video data corresponding to a point cloud by at least one processor, the method including obtaining a plurality of transform coefficients corresponding to attributes of the point cloud; and encoding the plurality of transform coefficients to generate an embedded bitstream, the encoding including iterating over a plurality of bit-planes of the plurality of transform coefficients to process all points in the point cloud.

公开(公告)号：US20240007608A1

公开(公告)日：2024-01-04

申请号：US18339001

申请日：2023-06-21

申请人： Google Technology Holdings LLC

发明人： John T. Bretscher ,  Randall S. Vaas

IPC分类号： H04N13/282 ,  H04N19/107 ,  H04N19/503 ,  H04N19/593 ,  H04N19/62 ,  H04N19/436 ,  H04N19/42 ,  H04N13/161 ,  H04N19/597 ,  G06T1/20 ,  H04N23/45 ,  H04N23/75 ,  H04N23/80 ,  H04N23/957

CPC分类号： H04N13/282 ,  H04N19/107 ,  H04N19/503 ,  H04N19/593 ,  H04N19/62 ,  H04N19/436 ,  H04N23/957 ,  H04N13/161 ,  H04N19/597 ,  G06T1/20 ,  H04N23/45 ,  H04N23/75 ,  H04N23/80 ,  H04N19/439

摘要： Using the techniques discussed herein, a set of images is captured by one or more array imagers (106). Each array imager includes multiple imagers configured in various manners. Each array imager captures multiple images of substantially a same scene at substantially a same time. The images captured by each array image are encoded by multiple processors (112, 114). Each processor can encode sets of images captured by a different array imager, or each processor can encode different sets of images captured by the same array imager. The encoding of the images is performed using various image-compression techniques so that the information that results from the encoding is smaller, in terms of storage size, than the uncompressed images.

公开(公告)号：US11831890B2

公开(公告)日：2023-11-28

申请号：US17749040

申请日：2022-05-19

申请人： DIGITALINSIGHTS INC.

发明人： Yong Jo Ahn

IPC分类号： H04N19/61 ,  H04N19/62 ,  H04N19/44 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96

CPC分类号： H04N19/44 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/62 ,  H04N19/96

摘要： An image encoding/decoding method of the present invention constructs a merge candidate list of a current block, derives motion information of the current block on the basis of the merge candidate list and a merge candidate index, and performs inter prediction on the current block on the basis of the derived motion information, wherein the merge candidate list can improve encoding/decoding efficiency by adaptively determining a plurality of merge candidates on the basis of the position or size of a merge estimation region (MER) to which the current block belongs.

公开(公告)号：US20180115787A1

公开(公告)日：2018-04-26

申请号：US15565823

申请日：2016-04-12

申请人： LG Electronics Inc.

发明人： Moonmo KOO ,  Sehoon YEA ,  Kyuwoon KIM ,  Bumshik LEE

IPC分类号： H04N19/593 ,  H04N19/124 ,  H04N19/182 ,  H04N19/61

CPC分类号： H04N19/593 ,  H04N19/124 ,  H04N19/182 ,  H04N19/61 ,  H04N19/62

摘要： The present invention provides a method for encoding a video signal, comprising: generating prediction pixels for the first row or column of a current block on the basis of boundary pixels neighboring to the current block; predicting remaining pixels within the current block respectively in the vertical direction or horizontal direction using the prediction pixels for the first row or column of the current block; generating a difference signal on the basis of the prediction pixels for the current block; and generating a transform-coded residual signal by applying a horizontal transform matrix and a vertical transform matrix to the difference signal.

公开(公告)号：US09813713B2

公开(公告)日：2017-11-07

申请号：US15297207

申请日：2016-10-19

申请人： Sharp Kabushiki Kaisha

发明人： Takeshi Tsukuba ,  Tomohiro Ikai ,  Tomoyuki Yamamoto

IPC分类号： G06K9/46 ,  H04N19/124 ,  H04N19/46 ,  H04N19/60 ,  H04N19/129 ,  H04N19/122 ,  H04N19/91 ,  H04N19/70 ,  H04N19/182 ,  H04N19/176

CPC分类号： H04N19/124 ,  H04N19/102 ,  H04N19/122 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/60 ,  H04N19/62 ,  H04N19/64 ,  H04N19/70 ,  H04N19/90 ,  H04N19/91

摘要： A coefficient presence/absence flag decoding unit, included in a quantized residual information decoding unit which reduces a processing amount related to coding and decoding of a transform coefficient, splits a target frequency domain or a target pixel domain into sub-blocks, and derives different context indexes with respect to each transform coefficient in a pixel domain, obtained through a transform skip or a transform/quantization bypass, and each transform coefficient which is obtained for each frequency component through frequency transform.

公开(公告)号：US20170238017A1

公开(公告)日：2017-08-17

申请号：US15335558

申请日：2016-10-27

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Gi Hyeon Min ,  Nack Woo Kim ,  Mun Seob Lee ,  Byung-Tak Lee ,  Young Sun Kim

IPC分类号： H04N19/62 ,  H04N19/36 ,  H04N19/597

CPC分类号： H04N19/62 ,  G03H1/0443 ,  G03H1/0866 ,  G03H2001/0447 ,  G03H2001/0469 ,  G03H2001/0471 ,  G03H2210/12 ,  G03H2222/24 ,  H04N19/36 ,  H04N19/597

摘要： There are provided an image processing device and a processing method thereof. The image processing method includes obtaining an interference signal using a sample beam and a reference beam, transforming the interference signal by using a numerical signal processing method or an intensity mixing method to generate a transformed interference signal, and obtaining a three-dimensional (3D) phase image by using the interference signal and the transformed interference signal.

公开(公告)号：US20170163993A9

公开(公告)日：2017-06-08

申请号：US13421788

申请日：2012-03-15

申请人： David Taubman ,  Andrew Secker

发明人： David Taubman ,  Andrew Secker

IPC分类号： H04N7/32

CPC分类号： H04N19/184 ,  H04N19/122 ,  H04N19/147 ,  H04N19/19 ,  H04N19/31 ,  H04N19/46 ,  H04N19/52 ,  H04N19/54 ,  H04N19/62 ,  H04N19/635

摘要： Embodiments of a method for incrementally coding and signaling motion information for a video compression system involving a motion adaptive transform and embedded coding of transformed video samples using a computer are disclosed herein. In one such embodiment, the method includes (a) storing computer-readable instructions in the computer which, when executed, produce an embedded motion field bit-stream, representing each, motion field in coarse to fine fashion and (b) storing computer-readable instructions in the computer which, when executed, interleave contributions from said embedded motion field bit-stream with successive contributions from said embedded coding of the transformed video samples.

公开(公告)号：US20170041609A1

公开(公告)日：2017-02-09

申请号：US15296643

申请日：2016-10-18

申请人： Luca Rossato ,  Guido Meardi

发明人： Luca Rossato ,  Guido Meardi

IPC分类号： H04N19/126 ,  H04N19/33 ,  H04N19/136 ,  H04N19/62 ,  H04N19/63 ,  H04N19/94 ,  H04N19/23 ,  H04N19/59

CPC分类号： H04N19/126 ,  G06T7/248 ,  H04N19/136 ,  H04N19/23 ,  H04N19/33 ,  H04N19/50 ,  H04N19/59 ,  H04N19/62 ,  H04N19/63 ,  H04N19/635 ,  H04N19/87 ,  H04N19/94

摘要： Computer processor hardware receives a first set of adjustment values. The first set of adjustment values specify adjustments to be made to a predicted rendition of a signal generated at a first level of quality to reconstruct a rendition of the signal at the first level of quality. The computer processor hardware processes the first set of adjustment values and derives a second set of adjustment values based on the first set of adjustment values and a rendition of the signal at a second level of quality. The second level of quality is lower than the first level of quality.

摘要翻译： 计算机处理器硬件接收第一组调整值。 第一组调整值指定对在第一质量水平上生成的信号的预测再现的调整，以在第一质量水平重建信号的再现。 计算机处理器硬件处理第一组调整值，并基于第一组调整值和在第二质量水平上再现第二组调整值。 质量第二水平低于一级品质。

公开(公告)号：US09516346B2

公开(公告)日：2016-12-06

申请号：US12627737

申请日：2009-11-30

申请人： Manohara Pai M.M ,  Karunakar Annappa Kotegar

发明人： Manohara Pai M.M ,  Karunakar Annappa Kotegar

IPC分类号： H04N19/147 ,  H04N19/62 ,  H04N19/63 ,  H04N19/17 ,  H04N19/115 ,  H04N19/146

CPC分类号： H04N19/62 ,  H04N19/115 ,  H04N19/146 ,  H04N19/17 ,  H04N19/63

摘要： A system and method for processing an image is provided. The system includes an encoder configured to subdivide the image into N subregions. The value of N is computed based upon a spatial resolution of the image, a granularity value and a level of wavelet decomposition. The encoder is configured to perform wavelet decomposition on each of the N subregions. The system includes memory circuitry configured to store image data resulting from the decomposition for later transmission.

摘要翻译： 提供了一种用于处理图像的系统和方法。 该系统包括被配置为将图像细分为N个子区域的编码器。 N的值基于图像的空间分辨率，粒度值和小波分解水平来计算。 编码器被配置为对N个子区域中的每一个执行小波分解。 该系统包括被配置为存储由分解产生的图像数据以供稍后传输的存储器电路。

公开(公告)号：US09204169B2

公开(公告)日：2015-12-01

申请号：US14456669

申请日：2014-08-11

申请人： FutureWei Technologies, Inc.

发明人： Bing Han ,  Dapeng Oliver Wu ,  Jun Tian ,  Hong Heather Yu

IPC分类号： G06K9/00 ,  G06K9/36 ,  H04N19/645 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/60 ,  H04N19/12 ,  H04N19/132 ,  H04N19/18 ,  H04N19/48 ,  H04N19/44 ,  H04N19/62 ,  H04N19/625

CPC分类号： H04N19/645 ,  H04N19/12 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/46 ,  H04N19/48 ,  H04N19/60 ,  H04N19/61 ,  H04N19/62 ,  H04N19/625

摘要： A system and method for image and video compression using compressive sensing is provided. An embodiment method for compressing an image having a plurality of image blocks includes selecting an image block from the plurality of image blocks to compress, computing a sum of sinusoidal signals at different frequencies and amplitudes representation for the selected image block, quantizing the amplitudes of the sinusoidal signals at different frequencies, and saving the quantized amplitudes as a first compressed image block. The method also includes truncating the quantized amplitudes, thereby producing truncated quantized amplitudes, saving the truncated quantized amplitudes as a second compressed image block, and selecting either the first compressed image block or the second compressed image block as a final compressed image block. The selecting is based on a measure of the quality of the first compressed image block and the second compressed image block.

摘要翻译： 提供了使用压缩感测的图像和视频压缩的系统和方法。 用于压缩具有多个图像块的图像的实施例方法包括从多个图像块中选择图像块以压缩，计算不同频率的正弦信号和用于所选择的图像块的幅度表示的和，量化幅度 以不同频率的正弦信号，并将量化振幅保存为第一压缩图像块。 该方法还包括截断量化幅度，从而产生截断的量化幅度，将截断的量化幅度保存为第二压缩图像块，并选择第一压缩图像块或第二压缩图像块作为最终压缩图像块。 该选择基于第一压缩图像块和第二压缩图像块的质量的度量。