公开(公告)号：US20150201190A1

公开(公告)日：2015-07-16

申请号：US13919875

申请日：2013-06-17

Applicant: GOOGLE INC.

Inventor： Yunqing Wang

IPC: H04N7/26

CPC classification number: H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/194 ,  H04N19/865

Abstract: Disclosed is a method for encoding a block of video. The method includes identifying, by a processor, a transformed video data block including a plurality of transformed video data, identifying a first portion of the plurality of transformed video data, identifying a second portion of the plurality of transformed video data, determining a plurality of quantized values based on the second portion of the plurality of transformed video data, and generating a quantization coefficient data block including a first portion of a plurality of quantized data values corresponding to the first portion of the plurality of transformed video data and set to a default value and including a second portion of the plurality of quantized data values corresponding to the second portion of the plurality of transformed video data and set to the plurality of quantized values.

Abstract translation: 公开了一种用于对视频块进行编码的方法。 该方法包括由处理器识别包括多个经变换的视频数据的变换视频数据块，识别多个经变换的视频数据的第一部分，识别多个经变换的视频数据的第二部分，确定多个 基于多个经变换的视频数据的第二部分的量化值，并且生成包括与多个经变换的视频数据的第一部分对应的多个量化数据值的第一部分并设置为默认值的量化系数数据块 并且包括与多个经变换的视频数据的第二部分对应的多个量化数据值的第二部分，并将其设置为多个量化值。

公开(公告)号：US20180227585A1

公开(公告)日：2018-08-09

申请号：US15425362

申请日：2017-02-06

Applicant: GOOGLE INC.

Inventor： Yunqing Wang ,  Xintong Han ,  Yang Xian

IPC: H04N19/192 ,  H04N19/503 ,  H04N19/176 ,  H04N19/66

CPC classification number: H04N19/192 ,  H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/503 ,  H04N19/66 ,  H04N19/96

Abstract: Described herein are classifiers that are used to determine whether or not to partition a block in frame during prediction using recursive partitioning. Blocks of training video frames are encoded using recursive partitioning to generate encoded blocks. Training instances are generated for the encoded blocks that include values of features extracted from each encoded block and a label indicating whether or not the encoded block is partitioned into smaller blocks in the recursive partitioning. The classifiers are trained for different block sizes using the training instances associated with the block size as input to a machine-learning process. When encoding frames of a video sequence, the output of the classifiers determines whether input blocks are partitioned during encoding.

公开(公告)号：US09641843B1

公开(公告)日：2017-05-02

申请号：US15198182

申请日：2016-06-30

Applicant: GOOGLE INC.

Inventor： Yunqing Wang

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/105 ,  H04N19/176 ,  H04N19/172 ,  H04N19/14

CPC classification number: H04N19/105 ,  H04N19/119 ,  H04N19/14 ,  H04N19/146 ,  H04N19/172 ,  H04N19/176

Abstract: Frames including in a video bitstream may be partitioned using source difference variance based partitioning before encoding. Variances between blocks of a current video frame and blocks of a previous video frame are used to partition the current video frame into varying block sizes depending upon the magnitude of the variances. Blocks with low variance may be combined with other low variance blocks to form larger blocks, while blocks with high variance may be further partitioned into smaller blocks to improve coding efficiency. In cases where partitioning is unlikely to provide improved efficiency, the variation calculations may be skipped in favor of using fixed partitioning for a frame. The partitioned frames are decoded.

公开(公告)号：US20180007366A1

公开(公告)日：2018-01-04

申请号：US15705592

申请日：2017-09-15

Applicant: GOOGLE INC.

Inventor： Yunqing Wang ,  Jingning Han

IPC: H04N19/14 ,  H04N19/60 ,  H04N19/44 ,  H04N19/184 ,  H04N19/159 ,  H04N19/137 ,  H04N19/124 ,  H04N19/91 ,  H04N19/115

CPC classification number: H04N19/14 ,  H04N19/115 ,  H04N19/119 ,  H04N19/124 ,  H04N19/137 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/426 ,  H04N19/436 ,  H04N19/44 ,  H04N19/463 ,  H04N19/60 ,  H04N19/70 ,  H04N19/91

Abstract: A method for encoding a video signal includes estimating a space requirement for encoding a tile of a video frame, writing a first value in a first value space of the bitstream, wherein the first value describes a size of a second value space, and defining the second value space in the bitstream, wherein the size of the second value space is based on an estimated space requirement. The method also includes writing encoded content in a content space of the bitstream, determining a size of the content space subsequent to writing encoded content in the content space, and writing a second value in the second value space of the bitstream, wherein the second value describes the size of the content space.

公开(公告)号：US09794574B2

公开(公告)日：2017-10-17

申请号：US14992407

申请日：2016-01-11

Applicant: Google Inc.

Inventor： Yunqing Wang ,  Jingning Han

IPC: G06K9/36 ,  H04N19/14 ,  H04N19/115 ,  H04N19/124 ,  H04N19/91 ,  H04N19/137 ,  H04N19/184 ,  H04N19/44 ,  H04N19/159 ,  H04N19/60

CPC classification number: H04N19/14 ,  H04N19/115 ,  H04N19/119 ,  H04N19/124 ,  H04N19/137 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/426 ,  H04N19/436 ,  H04N19/44 ,  H04N19/463 ,  H04N19/60 ,  H04N19/70 ,  H04N19/91

Abstract: A method for encoding a video signal includes estimating a space requirement for encoding a tile of a video frame, writing a first value in a first value space of the bitstream, wherein the first value describes a size of a second value space, and defining the second value space in the bitstream, wherein the size of the second value space is based on an estimated space requirement. The method also includes writing encoded content in a content space of the bitstream, determining a size of the content space subsequent to writing encoded content in the content space, and writing a second value in the second value space of the bitstream, wherein the second value describes the size of the content space.

公开(公告)号：US09578324B1

公开(公告)日：2017-02-21

申请号：US14317749

申请日：2014-06-27

Applicant: Google Inc.

Inventor： Yunqing Wang

IPC: H04N7/50 ,  H04N19/176 ,  H04N19/136

CPC classification number: H04N19/00278 ,  H04N19/119 ,  H04N19/137 ,  H04N19/176

Abstract: Frames of a video data stream can be encoded using statistically-based spatially differentiated partitioning. Statistically-based spatially differentiated partitioning involves forming a difference frame between a current video frame and a temporally nearby video frame and then calculating the variance of the difference frame on a block-by-block basis. A histogram can be formed from the calculated variances and a threshold determined on the histogram. The determined threshold can be used to select parameters for the encoding process that will more efficiently encode static or slow-motion areas without a significant loss in resulting quality.

Abstract translation: 视频数据流的帧可以使用基于统计学的空间分化分区进行编码。 基于统计学的空间微分分割涉及在当前视频帧和时间上附近的视频帧之间形成差分帧，然后在逐块的基础上计算差分帧的方差。 可以根据计算的方差和在直方图上确定的阈值形成直方图。 确定的阈值可用于选择编码过程的参数，该参数将更有效地编码静态或慢动作区域，而不会导致质量的显着损失。

公开(公告)号：US09392272B1

公开(公告)日：2016-07-12

申请号：US14293304

申请日：2014-06-02

Applicant: Google Inc.

Inventor： Yunqing Wang

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/14 ,  H04N19/105 ,  H04N19/176 ,  H04N19/172

CPC classification number: H04N19/105 ,  H04N19/119 ,  H04N19/14 ,  H04N19/146 ,  H04N19/172 ,  H04N19/176

Abstract: Frames of a video stream can be partitioned using source difference variance based partitioning before encoding. Variances between blocks of a current video frame and blocks of a previous unencoded video frame are determined. The current video frame can be partitioned into varying block sizes depending upon the magnitude of the variances. Blocks with low variance may be combined with other low variance blocks to form larger blocks, while blocks with high variance may be further partitioned into smaller blocks to improve encoding efficiency of the blocks. In cases where partitioning of a frame is unlikely to provide improved efficiency, the variation calculations may be skipped in favor of using fixed partitioning.

Abstract translation: 视频流的帧可以在编码之前使用源差异方差分区进行分区。 确定当前视频帧的块与前一未编码视频帧的块之间的差异。 根据方差的大小，当前视频帧可以被划分成不同的块大小。 具有低方差的块可以与其他低方差块组合以形成更大的块，而具有高方差的块可以进一步分割成更小的块以提高块的编码效率。 在框架划分不太可能提供改进的效率的情况下，可以跳过变化计算以有利于使用固定分区。

公开(公告)号：US20160050411A1

公开(公告)日：2016-02-18

申请号：US14461520

申请日：2014-08-18

Applicant: Google Inc.

Inventor： Yunqing Wang

IPC: H04N19/583

CPC classification number: H04N19/119 ,  H04N19/137 ,  H04N19/176 ,  H04N19/192

Abstract: A method and apparatus for video coding using motion-compensated partitioning is provided. Video coding using motion-compensated partitioning may include identifying a current block of a current frame of an input video stream, generating an encoded block by encoding the current block using motion-compensated partitioning, wherein encoding the current block using motion-compensated partitioning includes, generating coarse motion estimation information for the current block, partitioning the current block, generating fine motion estimation information for the current block, and transmitting or storing the encoded block.

Abstract translation: 提供了使用运动补偿分割的视频编码的方法和装置。 使用运动补偿分割的视频编码可以包括识别输入视频流的当前帧的当前块，通过使用运动补偿分割对当前块进行编码来生成编码块，其中使用运动补偿分割对当前块进行编码包括， 生成当前块的粗略运动估计信息，分割当前块，生成当前块的精细运动估计信息，以及发送或存储编码块。

公开(公告)号：US10554965B2

公开(公告)日：2020-02-04

申请号：US14461520

申请日：2014-08-18

Applicant: Google Inc.

Inventor： Yunqing Wang

IPC: H04N19/583

Abstract: A method and apparatus for video coding using motion-compensated partitioning is provided. Video coding using motion-compensated partitioning may include identifying a current block of a current frame of an input video stream, generating an encoded block by encoding the current block using motion-compensated partitioning, wherein encoding the current block using motion-compensated partitioning includes, generating coarse motion estimation information for the current block, partitioning the current block, generating fine motion estimation information for the current block, and transmitting or storing the encoded block.

公开(公告)号：US09955163B2

公开(公告)日：2018-04-24

申请号：US13919875

申请日：2013-06-17

Applicant: GOOGLE INC.

Inventor： Yunqing Wang

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/124 ,  H04N19/176 ,  H04N19/132 ,  H04N19/136 ,  H04N19/194 ,  H04N19/86

CPC classification number: H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176 ,  H04N19/194 ,  H04N19/865

Abstract: Disclosed is a method for encoding a block of video. The method includes identifying, by a processor, a transformed video data block including a plurality of transformed video data, identifying a first portion of the plurality of transformed video data, identifying a second portion of the plurality of transformed video data, determining a plurality of quantized values based on the second portion of the plurality of transformed video data, and generating a quantization coefficient data block including a first portion of a plurality of quantized data values corresponding to the first portion of the plurality of transformed video data and set to a default value and including a second portion of the plurality of quantized data values corresponding to the second portion of the plurality of transformed video data and set to the plurality of quantized values.