公开(公告)号：US20130279589A1

公开(公告)日：2013-10-24

申请号：US13865242

申请日：2013-04-18

Applicant: GOOGLE INC.

Inventor： Qunshan Gu ,  Marco Paniconi

IPC: H04N7/26

CPC classification number: H04N19/573 ,  H04L65/607 ,  H04N19/00 ,  H04N19/52 ,  H04N21/234 ,  H04N21/23406 ,  H04N21/44004 ,  H04N21/8451

Abstract: Encoding and decoding is accomplished herein using a multi-reference picture buffer. Reference frames are assigned to reference picture buffers when used for encoding and are identified with picture IDs unique relative to other picture IDs currently associated with the reference picture buffers. The maximum picture number used as the picture ID can be based on a number of reference picture buffers available to encode and decode the frames plus a value based on an expected error rate. The picture IDs can be assigned based on a least recently used policy. When a reference frame is no longer needed for encoding and decoding, a picture ID number associated with the reference frame can be released for re-assignment to a new reference frame.

Abstract translation: 这里使用多参考图像缓冲器来完成编码和解码。 当用于编码时，参考帧被分配给参考图像缓冲器，并且被识别为与当前与参考图像缓冲器相关联的其它图像ID相对于唯一的图像ID。 用作图像ID的最大图像编号可以基于可用于编码和解码帧的参考图像缓冲器的数量加上基于预期误码率的值。 可以基于最近最少使用的策略来分配图片ID。 当编码和解码不再需要参考帧时，可以释放与参考帧相关联的图像ID号，以重新分配给新的参考帧。

公开(公告)号：US09756346B2

公开(公告)日：2017-09-05

申请号：US14873688

申请日：2015-10-02

Applicant: Google Inc.

Inventor： Qunshan Gu ,  Yaowu Xu

IPC: H04N7/00 ,  H04N19/176 ,  H04N19/11 ,  H04N19/14

CPC classification number: H04N19/176 ,  H04N19/11 ,  H04N19/14

Abstract: Edge-selective intra coding may include encoding a first input block, generating a first reconstructed block by decoding the first encoded block, determining a reconstruction error block based on a difference between the first input block and the first reconstructed block, identifying a second input block from the first input frame, and determining a plurality of refined context pixels. Determining a plurality of refined context pixels may include identifying a plurality of context pixels from the reconstruction error block, generating a plurality of encoded context pixels by encoding the plurality of context pixels, generating a plurality of reconstructed context pixels by decoding the plurality of encoded context pixels, and adding at least a portion of the reconstruction error block and the plurality of reconstructed context pixels. The method may include generating a second encoded block by encoding the second input block based on the plurality of refined context pixels.

公开(公告)号：US09509998B1

公开(公告)日：2016-11-29

申请号：US13856678

申请日：2013-04-04

Applicant: Google Inc.

Inventor： Qunshan Gu

IPC: H04N19/33 ,  H04N19/93

CPC classification number: H04N19/00957 ,  H04N19/593 ,  H04N19/91

Abstract: Conditional predictive multi-symbol run-length coding may include generating a differential residual block based on a residual block and a reconstructed residual block, entropy encoding the differential residual block by determining a symbol order for a plurality of symbols in the differential residual block, grouping the plurality of symbols into at least a first group and a second group based on the symbol order, run-length encoding the plurality of symbols in the differential residual block, by on a condition that a first symbol from the plurality of symbols is associated with the first group, encoding a second symbol from the plurality of symbols, and on a condition that the first symbol is associated with the second group, modifying the second symbol and encoding the modified second symbol.

Abstract translation: 条件预测多符号游程长度编码可以包括基于残差块和重建残差块产生差分残差块，通过确定差分残差块中的多个符号的符号顺序来对差分残差块进行熵编码，分组 通过在多个符号中的第一符号相关联的条件下，将基于符号顺序的至少第一组和第二组中的多个符号编码到差分残差块中的多个符号的游程长度 所述第一组从所述多个符号中编码第二符号，并且在所述第一符号与所述第二组相关联的条件下，修改所述第二符号并对所述修改的第二符号进行编码。

公开(公告)号：US20160037174A1

公开(公告)日：2016-02-04

申请号：US14884080

申请日：2015-10-15

Applicant: Google Inc.

Inventor： Qunshan Gu ,  Yaowu Xu

IPC: H04N19/176 ,  H04N19/513 ,  H04N19/44 ,  H04N19/61 ,  H04N19/172 ,  H04N19/182

CPC classification number: H04N19/176 ,  H04N19/172 ,  H04N19/182 ,  H04N19/44 ,  H04N19/513 ,  H04N19/593 ,  H04N19/61

Abstract: Second-order orthogonal spatial intra-prediction may include generating a reconstructed frame by generating a plurality of reconstructed blocks by decoding a portion of the current encoded frame, generating a decoded residual block by decoding a current block from the current encoded frame, identifying a current pixel location in the current block, identifying reconstructed pixels in respective reconstructed blocks, wherein first and second reconstructed pixels are at respective oblique angle to the current pixel location, and a third reconstructed pixel at the second oblique angle to the first reconstructed pixel or at the first oblique angle to the second reconstructed pixel, determining a predictor pixel for the current pixel location using a difference between the third reconstructed pixel and a sum of the first reconstructed pixel and the second reconstructed pixel, and identifying a reconstructed pixel as a sum of the predictor pixel and a corresponding residual pixel.

Abstract translation: 二阶正交空间帧内预测可以包括通过对当前编码帧的一部分进行解码来生成多个重构块来产生重构帧，通过从当前编码帧解码当前块来生成解码残差块，识别当前编码帧 在当前块中的像素位置，识别各个重建块中的重建像素，其中第一和第二重构像素与当前像素位置成倾斜角度，以及与第一重建像素成第二倾斜角度的第三重建像素， 使用第三重建像素与第一重建像素和第二重构像素的和之间的差确定当前像素位置的预测像素，并将重构像素识别为第二重构像素的和， 预测像素和相应的残差像素。

公开(公告)号：US09201563B2

公开(公告)日：2015-12-01

申请号：US13649074

申请日：2012-10-10

Applicant: Google Inc.

Inventor： Wei Jia ,  Qunshan Gu

IPC: G06F3/048 ,  G06F3/0481 ,  G06F3/0487

CPC classification number: G06F3/0481 ,  G06F3/04847 ,  G06F3/0487 ,  G06F3/1454 ,  G06F9/452 ,  G09G5/14 ,  G09G2340/0407 ,  G09G2340/145

Abstract: The subject disclosure relates to managing windows in communications between a client device and a host device. It includes obtaining display information for a host device in response to a communication request from a client device, determining, based on the display information for the host device, a primary window to provide for display at the client device and identifying content associated with the primary window. The disclosure further includes determining display specifications of the client device, wherein the display specifications comprise at least one of display size, display type or content download settings and providing the identified content associated with the primary window for display on the client device according to the display specifications of the client device.

Abstract translation: 本公开涉及在客户端设备和主机设备之间的通信中管理窗口。 它包括响应于来自客户端设备的通信请求而获得主机设备的显示信息，基于主机设备的显示信息确定提供在客户端设备处显示的主窗口，并且识别与主服务器相关联的内容 窗口。 本公开还包括确定客户端设备的显示规格，其中显示规格包括显示器尺寸，显示类型或内容下载设置中的至少一个，并且根据显示器提供与主窗口相关联的所标识的内容以在客户端设备上显示 客户端设备的规格。

公开(公告)号：US20150256826A1

公开(公告)日：2015-09-10

申请号：US13758342

申请日：2013-02-04

Applicant: Google Inc.

Inventor： Qunshan Gu ,  Wei Jia

IPC: H04N7/26

CPC classification number: H04N19/13 ,  H03M7/46 ,  H04N19/50 ,  H04N19/93

Abstract: A method includes performing, by a microprocessor of a computing device, a coding to obtain a residual of a residual data block from an original data block. The method includes pre-defining a default order of symbols in the residual data block. The method includes re-ordering the symbols in the residual data block in an order other than the default order, such that a first set of most frequently used symbols are in a first location and a second set of least frequently used symbols are in a second location, producing a multi-symbol run-length code based on a group of symbols from the first set of most frequently used symbols, and detecting the second set of least frequently used symbols based on the multi-symbol run-length code.

Abstract translation: 一种方法包括由计算设备的微处理器执行编码以从原始数据块获得残余数据块的残差。 该方法包括在残差数据块中预先定义符号的默认顺序。 该方法包括以除默认顺序之外的顺序重新排序残留数据块中的符号，使得第一组最常用的符号位于第一位置，而第二组最不频繁使用的符号位于第二位置 位置，基于来自第一组最常用符号的一组符号产生多符号游程长度代码，以及基于多符号游程长度代码检测第二组最不频繁使用的符号。

公开(公告)号：US20140098855A1

公开(公告)日：2014-04-10

申请号：US13647092

申请日：2012-10-08

Applicant: Google Inc.

Inventor： Qunshan Gu ,  Yaowu Xu

IPC: H04N7/32 ,  H04N7/26

CPC classification number: H04N19/12 ,  H04N19/139 ,  H04N19/176 ,  H04N19/61

Abstract: Blocks of a frame of a video stream can be encoded using lossless inter-frame prediction encoding. The compression ratio of lossless inter-frame encoding can be improved by first examining the magnitude of a motion vector used to perform inter-frame prediction. If the magnitude of the motion vector is small, the residual generated by the inter-prediction can be entropy coded and included in the encoded bitstream. If the magnitude of the motion vector is greater than a threshold, the residual can be encoded using lossy encoding and then decoded and subtracted from the original residual. The resulting difference residual is encoded using lossless encoding and included in the output bitstream along with the lossy encoded residual, permitting the block to be decoded with no loss at a decoder.

Abstract translation: 可以使用无损帧间预测编码对视频流的帧的块进行编码。 通过首先检查用于执行帧间预测的运动矢量的大小，可以改善无损帧间编码的压缩比。 如果运动矢量的大小小，则由帧间预测产生的残差可以被熵编码并包含在编码比特流中。 如果运动矢量的大小大于阈值，则可以使用有损编码对残差进行编码，然后从原始残差中进行解码和减去。 所得到的差分残差使用无损编码进行编码，并包含在输出比特流中以及有损编码残差，允许在解码器处无损耗地对该块进行解码。

公开(公告)号：US20140098854A1

公开(公告)日：2014-04-10

申请号：US13647089

申请日：2012-10-08

Applicant: GOOGLE INC.

Inventor： Qunshan Gu ,  Yaowu Xu

IPC: H04N7/32

CPC classification number: H04N19/593

Abstract: Blocks of a frame of a video stream can be encoded using lossless intra-prediction encoding. The compression ratio of lossless intra-prediction encoding can be improved by performing lossy encoding on the intra-predicted residual. The encoded residual is then decoded and the reconstructed residual is subtracted from the original residual. The resulting difference residual is encoded using lossless encoding and included in the output bitstream along with the lossy encoded residual, permitting the block to be decoded with no loss at a decoder.

Abstract translation: 可以使用无损内部预测编码对视频流的帧的块进行编码。 可以通过对帧内预测残差进行有损编码来提高无损帧内预测编码的压缩比。 然后对编码的残差进行解码，并从原始残差中减去重建的残差。 所得到的差分残差使用无损编码进行编码，并包含在输出比特流中以及有损编码残差，允许在解码器处无损耗地对该块进行解码。

公开(公告)号：US09311692B1

公开(公告)日：2016-04-12

申请号：US13749762

申请日：2013-01-25

Applicant: Google Inc.

Inventor： Wei Jia ,  Qunshan Gu

IPC: G06F3/048 ,  G06T3/40 ,  G06F3/0484

CPC classification number: G06T3/4092 ,  G06F3/04845

Abstract: A method and apparatus for scalable buffer remote access is provided. Scalable buffer remote access may include generating, at a client device, a scalable display buffer request indicating a portion of a display area of an operating environment of a host device and a scaling factor ratio, transmitting the scalable display buffer request to the host device, receiving rendered content including a scaled rendering of a representation of the portion of the display area of the host device, presenting a client display window including the rendered content as a window into the display area of the operating environment of the host device, receiving a zoom indication, and presenting an updated client display window based on the rendered content and the zoom indication or based on updated rendered content received from the host device.

Abstract translation: 提供了用于可伸缩缓冲器远程访问的方法和装置。 可扩展缓冲器远程访问可以包括在客户端设备处生成指示主机设备的操作环境的显示区域的一部分的可缩放显示缓冲器请求和缩放因子比率，将可伸缩显示缓冲器请求发送到主机设备， 接收呈现的内容，包括主机设备的显示区域的部分的表示的缩放呈现，将包括所呈现的内容的客户端显示窗口呈现到主机设备的操作环境的显示区域中，接收缩放 指示，并且基于所呈现的内容和缩放指示或基于从主机设备接收的更新的呈现内容呈现更新的客户端显示窗口。

公开(公告)号：US09210432B2

公开(公告)日：2015-12-08

申请号：US13647092

申请日：2012-10-08

Applicant: Google Inc.

Inventor： Qunshan Gu ,  Yaowu Xu

IPC: H04N7/32 ,  H04N19/12 ,  H04N19/139 ,  H04N19/176 ,  H04N19/61

CPC classification number: H04N19/12 ,  H04N19/139 ,  H04N19/176 ,  H04N19/61

Abstract: Blocks of a frame of a video stream can be encoded using lossless inter-frame prediction encoding. The compression ratio of lossless inter-frame encoding can be improved by first examining the magnitude of a motion vector used to perform inter-frame prediction. If the magnitude of the motion vector is small, the residual generated by the inter-prediction can be entropy coded and included in the encoded bitstream. If the magnitude of the motion vector is greater than a threshold, the residual can be encoded using lossy encoding and then decoded and subtracted from the original residual. The resulting difference residual is encoded using lossless encoding and included in the output bitstream along with the lossy encoded residual, permitting the block to be decoded with no loss at a decoder.

Abstract translation: 可以使用无损帧间预测编码对视频流的帧的块进行编码。 通过首先检查用于执行帧间预测的运动矢量的大小，可以改善无损帧间编码的压缩比。 如果运动矢量的大小小，则由帧间预测产生的残差可以被熵编码并包含在编码比特流中。 如果运动矢量的大小大于阈值，则可以使用有损编码对残差进行编码，然后从原始残差中进行解码和减去。 所得到的差分残差使用无损编码进行编码，并包含在输出比特流中以及有损编码残差，允许在解码器处无损耗地对该块进行解码。