公开(公告)号：US20150296210A1

公开(公告)日：2015-10-15

申请号：US14685453

申请日：2015-04-13

Applicant: QUALCOMM Incorporated

Inventor： Vijayaraghavan THIRUMALAI ,  Rajan Laxman JOSHI ,  Natan Haim JACOBSON

IPC: H04N19/19 ,  H04N19/18 ,  H04N19/176 ,  H04N19/423 ,  H04N19/184

CPC classification number: H04N19/19 ,  H04N19/11 ,  H04N19/147 ,  H04N19/152 ,  H04N19/176

Abstract: According to certain aspects, an apparatus for coding video data includes a memory for storing the video data and a processor. The memory includes a buffer. The processor is configured to receive the video data to be coded. The processor is further configured to determine a Lagrangian parameter for a coding mode based at least in part on a bit rate of the coding mode and a fullness of the buffer.

Abstract translation: 根据某些方面，用于编码视频数据的装置包括用于存储视频数据的存储器和处理器。 内存包括一个缓冲区。 处理器被配置为接收要编码的视频数据。 处理器还被配置为至少部分地基于编码模式的比特率和缓冲器的充满度来确定编码模式的拉格朗日参数。

公开(公告)号：US20150304668A1

公开(公告)日：2015-10-22

申请号：US14691376

申请日：2015-04-20

Applicant: QUALCOMM Incorporated

Inventor： Natan Haim JACOBSON ,  Vijayaraghavan THIRUMALAI ,  Rajan Laxman JOSHI ,  Min DAI

IPC: H04N19/196 ,  H04N19/167

CPC classification number: H04N19/196 ,  H04N19/167 ,  H04N19/593 ,  H04N19/94

Abstract: A system and method for coding video data in pattern mode for display stream compression (DSC) is disclosed. In one aspect, the method includes determining that a first pattern in a current block of video data is not in a pattern database comprising a plurality of patterns, and adding the first pattern to the pattern database. The first pattern may be associated with a first index identifying a location of the first pattern in the pattern database. The method further includes coding the current block in pattern mode at least in part via signaling (i) the first pattern determined not to be in the pattern database and (ii) the first index identifying the location of the first pattern in the first database.

Abstract translation: 公开了一种用于以图形模式对显示流压缩（DSC）编码视频数据的系统和方法。 一方面，该方法包括确定视频数据的当前块中的第一模式不在包括多个模式的模式数据库中，并将第一模式添加到模式数据库。 第一图案可以与识别图案数据库中的第一图案的位置的第一索引相关联。 该方法还包括至少部分通过信令（i）确定不在模式数据库中的第一模式和（ii）识别第一模式在第一数据库中的位置的第一索引，以模式模式对当前块进行编码。

公开(公告)号：US20150304675A1

公开(公告)日：2015-10-22

申请号：US14691378

申请日：2015-04-20

Applicant: QUALCOMM Incorporated

Inventor： Natan Haim JACOBSON ,  Vijayaraghavan THIRUMALAI ,  Rajan Laxman JOSHI ,  Min DAI

IPC: H04N19/50 ,  H04N19/124 ,  H04N19/61 ,  H04N19/176

CPC classification number: H04N19/55 ,  H04N19/57 ,  H04N19/593

Abstract: A system and method for coding a block of video data in block prediction mode for display stream compression (DSC) is disclosed. In one aspect, the method includes determining a candidate block to be used for predicting a current block in a current slice. The candidate block may be within a range of locations defined by one or more block prediction parameters. The method further includes determining, based on the candidate block and the current block, a prediction vector identifying a location of the candidate block with respect to the current block, and coding the current block in block prediction mode at least in part via signaling the prediction vector identifying the location of the candidate block with respect to the current block.

Abstract translation: 公开了一种用于以块预测模式对显示流压缩（DSC）编码视频数据块的系统和方法。 一方面，该方法包括确定要用于预测当前片中的当前块的候选块。 候选块可以在由一个或多个块预测参数定义的位置的范围内。 该方法还包括基于候选块和当前块确定一个预测矢量，该预测矢量标识相对于当前块的候选块的位置，并且至少部分地通过发送预测来以块预测模式对当前块进行编码 标识候选块相对于当前块的位置的向量。

公开(公告)号：US20170163986A1

公开(公告)日：2017-06-08

申请号：US15369723

申请日：2016-12-05

Applicant: QUALCOMM Incorporated

Inventor： Natan Haim JACOBSON ,  Vijayaraghavan THIRUMALAI ,  Rajan Laxman JOSHI

IPC: H04N19/137 ,  H04N19/513

CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/119 ,  H04N19/147 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/436 ,  H04N19/513 ,  H04N19/593

Abstract: A method for coding a block of video data in simplified block prediction mode of a constant bitrate video coding scheme for transmission over display links is disclosed. In one aspect, the method includes determining a candidate block to be used to predict a current block in a current slice, the candidate block being within a range of pixel positions that each correspond to a reconstructed pixel in the current slice. The range of pixel positions may comprise (i) a first region including one or more first pixel positions in a first line of pixels that overlaps the current block, and (ii) a second region including one or more second pixel positions in a second line of pixels that does not overlap the current block. The method may further comprise determining and signaling a prediction vector indicative of a pixel position of the candidate block.

公开(公告)号：US20190124350A1

公开(公告)日：2019-04-25

申请号：US16159458

申请日：2018-10-12

Applicant: QUALCOMM Incorporated

Inventor： Vijayaraghavan THIRUMALAI ,  Xiang LI ,  Nan HU ,  Hsiao-Chiang CHUANG ,  Marta KARCZEWICZ

IPC: H04N19/513 ,  H04N19/85 ,  H04N19/52

Abstract: A device for video decoding may include a memory configured to store video data and a processor configured receive a bitstream including encoded video data. The processor may be configured to select a number of template matching (TM) candidates for a temporal layer or slice during the video decoding. The number of TM candidates selected are fixed prior to the video decoding, or adaptively calculated during the video decoding. The processor may be configured to generate a prediction block and residual block, based on a template matching candidate, to reconstruct the video data.

公开(公告)号：US20170085886A1

公开(公告)日：2017-03-23

申请号：US15265743

申请日：2016-09-14

Applicant: QUALCOMM Incorporated

Inventor： Natan Haim JACOBSON ,  Vijayaraghavan THIRUMALAI ,  Rajan Laxman JOSHI

IPC: H04N19/156 ,  H04N19/176 ,  H04N19/167 ,  H04N19/105 ,  H04N19/146

Abstract: A method for coding a block of video data in block prediction mode of a constant bitrate video coding scheme for transmission over display links is disclosed. In one aspect, the method includes determining one or more first candidate regions to be used to predict a current region within the block of video data using a first partitioning scheme, determining one or more second candidate regions to be used to predict the current region using a second partitioning scheme, determining that a first cost associated with coding the current region using the first partitioning scheme is greater than a second cost associated with coding the current region using the second partitioning scheme, and coding the current region using the second partitioning scheme.

公开(公告)号：US20150296206A1

公开(公告)日：2015-10-15

申请号：US14685430

申请日：2015-04-13

Applicant: QUALCOMM Incorporated

Inventor： Vijayaraghavan THIRUMALAI ,  Natan Haim JACOBSON ,  Rajan Laxman JOSHI

IPC: H04N19/124 ,  H04N19/423 ,  H04N19/174 ,  H04N19/184 ,  H04N19/176

CPC classification number: H04N19/124 ,  H04N19/15 ,  H04N19/152 ,  H04N19/174 ,  H04N19/176 ,  H04N19/423

Abstract: An apparatus for coding video data according to certain aspects includes a memory for storing the video data and a processor. The memory includes a buffer. The processor is configured to receive the video data to be coded. The processor is further configured to determine a quantization parameter (QP) of a current block of the video data without considering a type of content of the video data and a rate-distortion model associated with the type of content. The processor is also configured to code the current block in a bitstream using the determined QP.

Abstract translation: 根据某些方面的用于编码视频数据的装置包括用于存储视频数据的存储器和处理器。 内存包括一个缓冲区。 处理器被配置为接收要编码的视频数据。 处理器还被配置为在不考虑视频数据的内容的类型和与内容的类型相关联的速率失真模型的情况下，确定视频数据的当前块的量化参数（QP）。 处理器还被配置为使用所确定的QP对比特流中的当前块进行编码。