公开(公告)号：US20160227225A1

公开(公告)日：2016-08-04

申请号：US15009609

申请日：2016-01-28

Applicant: QUALCOMM Incorporated

Inventor： Feng Zou ,  Vadim Seregin ,  Marta Karczewicz ,  Wei Pu ,  Rajan Laxman Joshi

IPC: H04N19/186 ,  H04N19/593 ,  H04N19/124 ,  H04N19/44 ,  H04N19/13 ,  H04N19/577 ,  H04N19/105 ,  H04N19/147 ,  H04N19/61 ,  H04N19/176 ,  H04N19/139 ,  H04N19/52 ,  H04N19/96

CPC classification number: H04N19/186 ,  G06F9/30018 ,  H04N19/105 ,  H04N19/124 ,  H04N19/126 ,  H04N19/13 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52 ,  H04N19/577 ,  H04N19/593 ,  H04N19/61 ,  H04N19/96

Abstract: In one example, a device for decoding video data includes a memory configured to store video data and a video decoder configured to determine that a value for a right shift parameter for an escape-mode coded pixel of a palette-mode coded block of the video data is less than zero, based on the value for the right shift parameter being less than zero, set a value for a left shift parameter to a positive value having an absolute value equal to an absolute value of the right shift parameter, and inverse quantize the escape-mode coded pixel using the value of the left shift parameter.

Abstract translation: 在一个示例中，用于解码视频数据的设备包括被配置为存储视频数据的存储器和被配置为确定视频的调色板模式编码块的逃逸模式编码像素的右移参数的值的视频解码器 数据小于0，基于右移参数的值小于零，将左移参数的值设置为具有等于右移参数的绝对值的绝对值的正值，并将逆量化 逃逸模式编码像素使用左移参数的值。

公开(公告)号：US20160227217A1

公开(公告)日：2016-08-04

申请号：US15009477

申请日：2016-01-28

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Wei Pu ,  Rajan Laxman Joshi ,  Vadim Seregin

IPC: H04N19/13 ,  H04N19/186 ,  H04N19/44 ,  H04N19/593 ,  H04N19/124 ,  H04N19/117 ,  H04N19/105 ,  H04N19/52 ,  H04N19/176 ,  H04N19/136

CPC classification number: H04N19/13 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/42 ,  H04N19/44 ,  H04N19/463 ,  H04N19/52 ,  H04N19/593 ,  H04N19/70 ,  H04N19/93

Abstract: In an example, a method of decoding video data may include receiving a palette mode encoded block of video data of a picture. The method may include receiving encoded palette mode information for the palette mode encoded block of video data. The encoded palette mode information may include a plurality of instances of a first syntax element and a plurality of syntax elements that are different from the first syntax element. The method may include decoding, using bypass mode, the plurality of instances of the first syntax element before decoding the plurality of syntax elements that are different from the first syntax element using context mode. The method may include decoding, using context mode, the plurality of syntax elements that are different from the first syntax element after decoding the plurality of instances of the first syntax element using bypass mode.

Abstract translation: 在一个示例中，解码视频数据的方法可以包括接收图片的视频数据的调色板模式编码块。 该方法可以包括接收用于调色板模式编码的视频数据块的编码调色板模式信息。 编码调色板模式信息可以包括与第一语法元素不同的第一语法元素和多个语法元素的多个实例。 该方法可以包括在使用上下文模式解码与第一语法元素不同的多个语法元素之前，使用旁路模式来解码第一语法元素的多个实例。 该方法可以包括在使用旁路模式解码第一语法元素的多个实例之后，使用上下文模式来解码与第一语法元素不同的多个语法元素。

公开(公告)号：US09344718B2

公开(公告)日：2016-05-17

申请号：US13954749

申请日：2013-07-30

Applicant: QUALCOMM Incorporated

Inventor： Jianle Chen ,  Vadim Seregin ,  Xiang Li ,  Krishnakanth Rapaka ,  Chengjie Tu ,  Marta Karczewicz

IPC: H04N11/04 ,  H04N19/117 ,  H04N19/159 ,  H04N19/70 ,  H04N19/46 ,  H04N19/187 ,  H04N19/82 ,  H04N19/59 ,  H04N7/26 ,  H04N19/33 ,  H04N19/31

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/187 ,  H04N19/31 ,  H04N19/33 ,  H04N19/46 ,  H04N19/59 ,  H04N19/70 ,  H04N19/82

Abstract: Methods and systems for video image coding are provided. Sets of filters may be selected and applied to video information at least partially based on the type of inter layer prediction implemented in coding the video information. Different filters, or filter sets, may be used for inter layer intra prediction, difference domain intra prediction, and/or difference domain inter prediction. Filter selection information may be embedded in the video bit stream.

Abstract translation: 提供了视频图像编码的方法和系统。 可以至少部分地基于在编码视频信息中实现的层间预测的类型来选择并将其应用于视频信息。 不同的滤波器或滤波器组可以用于层间帧内预测，​​差分帧内预测和/或差域帧间预测。 滤波器选择信息可以嵌入在视频比特流中。

公开(公告)号：US20160105682A1

公开(公告)日：2016-04-14

申请号：US14878825

申请日：2015-10-08

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Chao Pang ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/50 ,  H04N19/44

CPC classification number: H04N19/50 ,  H04N19/11 ,  H04N19/157 ,  H04N19/174 ,  H04N19/436 ,  H04N19/44 ,  H04N19/55 ,  H04N19/593

Abstract: According to techniques of this disclosure, a video decoder can be configured to, for one or more blocks coded with wavefront parallel processing enabled, determine a coding tree block (CTB) delay, wherein the CTB delay identifies a delay between when a first row of CTBs starts being decoded and when a second row of CTBs below the first row of CTBs starts being decoded; for a current block of video data coded in an intra-block copy (IBC) mode and coded with wavefront parallel processing disabled, determine an IBC prediction region for the current block within a picture that includes the current block based on the CTB delay that was determined for the one or more blocks coded with wavefront parallel processing enabled; identify, from within the determined IBC prediction region for the current block, a predictive block for the current block; and IBC decode the current block based on the predictive block.

Abstract translation: 根据本公开的技术，视频解码器可以被配置为，对于使能波前并行处理编码的一个或多个块来确定编码树块（CTB）延迟，其中，CTB延迟识别在第一行 CTB开始被解码，并且当CTB的第一行之下的第二行CTB开始被解码时; 对于以片内复制（IBC）模式编码并以波前并行处理禁用编码的视频数据的当前块，基于CTB延迟确定包括当前块的当前块内的当前块的IBC预测区域 为使能波前并行处理编码的一个或多个块确定; 从所确定的当前块的IBC预测区域内识别当前块的预测块; 并且IBC基于预测块来解码当前块。

公开(公告)号：US20160100171A1

公开(公告)日：2016-04-07

申请号：US14876495

申请日：2015-10-06

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Feng Zou ,  Rajan Laxman Joshi ,  Vadim Seregin ,  Wei Pu

IPC: H04N19/13 ,  H04N19/50 ,  H04N19/70 ,  H04N19/176 ,  H04N19/136

CPC classification number: H04N19/13 ,  H04N19/136 ,  H04N19/14 ,  H04N19/176 ,  H04N19/182 ,  H04N19/50 ,  H04N19/593 ,  H04N19/70

Abstract: An example method of coding video data includes determining, for a current block of video data, a palette that includes a plurality of entries that each corresponds to a respective color value; determining a particular entry in the palette that is predicted to correspond to a color value of a current pixel of the current block; selecting a binarization from a plurality of binarizations; and coding, using the selected binarization, an index that indicates which entry in the palette corresponds to a color value for a current pixel of the current block, wherein coding the index using a first binarization of the plurality of binarizations comprises coding a syntax element that indicates whether the index is equal to the particular entry, and wherein coding the index using a second binarization of the plurality of binarizations comprises coding the index using a variable length code without coding the syntax element.

Abstract translation: 对视频数据进行编码的示例方法包括：对于当前视频数据块，确定包括多个条目的调色板，每个条目对应于相应的颜色值; 确定所述调色板中被预测为对应于当前块的当前像素的颜色值的特定条目; 从多个二值化中选择二值化; 以及使用所选择的二值化编码指示所述调色板中的哪个条目对应于当前块的当前像素的颜色值的索引，其中使用所述多个二进制化的第一二进制对所述索引进行编码包括编码语法元素， 指示索引是否等于特定条目，并且其中使用多个二进制化的第二二进制对索引进行编码包括使用可变长度代码对索引进行编码，而不对语法元素进行编码。

公开(公告)号：US20160100163A1

公开(公告)日：2016-04-07

申请号：US14860250

申请日：2015-09-21

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Joel Sole Rojals ,  Cheng-Teh Hsieh ,  Chao Pang ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/513 ,  H04N19/593 ,  H04N19/176 ,  H04N19/182

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/513 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

Abstract: Techniques are described for determining boundary strength value for an intra-block copy (IBC)-coded block and for selective storage of unfiltered pixel values of a region of a picture based on whether the region will be used as reference for IBC coding.

Abstract translation: 描述了用于确定块内复制（IBC）编码块的边界强度值并基于该区域将被用作IBC编码的参考来选择性地存储图像区域的未滤波像素值的技术。

公开(公告)号：US20160094851A1

公开(公告)日：2016-03-31

申请号：US14864331

申请日：2015-09-24

Applicant: QUALCOMM Incorporated

Inventor： Wei Pu ,  Joel Sole Rojals ,  Marta Karczewicz ,  Rajan Laxman Joshi ,  Cheng-Teh Hsieh ,  Vadim Seregin

IPC: H04N19/186 ,  H04N19/93 ,  H04N19/103 ,  H04N19/176 ,  H04N19/182

CPC classification number: H04N19/186 ,  H04N19/103 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/593 ,  H04N19/91 ,  H04N19/93

Abstract: In an example, a method of processing video data includes determining an input parameter for a truncated binary code that represents a palette index for a pixel of a block of video data based on a number of indices in a palette for the block. The method also includes coding a prefix of the truncated binary code, and determining a palette coding mode for the pixel from a first palette coding mode and a second palette coding mode based only on the prefix of the truncated binary code.

Abstract translation: 在一个示例中，处理视频数据的方法包括基于块的调色板中的索引数量，确定代表视频数据块的像素的调色板索引的截断的二进制代码的输入参数。 该方法还包括对截断的二进制码的前缀进行编码，并且仅基于截断的二进制码的前缀，从第一调色板编码模式和第二调色板编码模式确定该像素的调色板编码模式。

公开(公告)号：US20160057447A1

公开(公告)日：2016-02-25

申请号：US14818134

申请日：2015-08-04

Applicant: QUALCOMM Incorporated

Inventor： Wei Pu ,  Feng Zou ,  Marta Karczewicz ,  Rajan Laxman Joshi ,  Joel Sole Rojals ,  Vadim Seregin

IPC: H04N19/593 ,  H04N19/159 ,  H04N19/85 ,  H04N19/186 ,  H04N19/182 ,  H04N19/105 ,  H04N19/167

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/182 ,  H04N19/186 ,  H04N19/27 ,  H04N19/85 ,  H04N19/93

Abstract: Methods incorporating extensions to copy-above mode for palette mode coding are disclosed. In one aspect, the method includes coding a current pixel of a current block of video data in copy-previous mode via coding a previous line index. The coding of the current pixel in copy-previous mode further including identifying a number of candidate values for the previous line index, identifying a number of escape pixels in a column of pixels above the current pixel in the current block, and reducing a number of candidate values of the previous line index by the number of identified escape pixels.

Abstract translation: 公开了将调色板模式编码的复制上述模式的扩展结合起来的方法。 一方面，该方法包括通过对前一行索引进行编码来对上一个模式中的当前视频数据块进行编码。 复制先前模式中的当前像素的编码还包括识别前一行索引的候选值的数量，识别当前块中当前像素上方的像素列中的转义像素的数量，并减少 前一行索引的候选值除以确定的转义像素的数量。

公开(公告)号：US20150341673A1

公开(公告)日：2015-11-26

申请号：US14719222

申请日：2015-05-21

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman Joshi ,  Vadim Seregin ,  Wei Pu ,  Marta Karczewicz ,  Joel Sole Rojals ,  Krishnakanth Rapaka

IPC: H04N19/93 ,  H04N19/129 ,  H04N19/176 ,  H04N19/182

CPC classification number: H04N19/70 ,  H04N19/129 ,  H04N19/13 ,  H04N19/167 ,  H04N19/176 ,  H04N19/182 ,  H04N19/91 ,  H04N19/93

Abstract: In an example, a method of coding video data includes determining, for a pixel associated with a palette index that relates a value of the pixel to a color value in a palette of colors used for coding the pixel, a run length of a run of palette indices being coded with the palette index of the pixel, the method also includes determining a maximum run length for a maximum run of palette indices able to be coded with the palette index of the pixel, and coding data that indicates the run length based on the determined maximum run length.

Abstract translation: 在一个示例中，视频数据的编码方法包括：将与调色板索引相关联的像素与将所述像素的值相关联的颜色值确定为用于对所述像素进行编码的颜色调色板中的颜色值， 调色板索引用像素的调色板索引编码，该方法还包括确定能够用像素的调色板索引编码的调色板索引的最大运行的最大游程长度，以及基于像素的调色板索引的编码数据，其基于 确定最大行程长度。

公开(公告)号：US20150341655A1

公开(公告)日：2015-11-26

申请号：US14719228

申请日：2015-05-21

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman Joshi ,  Vadim Seregin ,  Wei Pu ,  Marta Karczewicz ,  Joel Sole Rojals ,  Krishnakanth Rapaka

IPC: H04N19/50 ,  H04N19/186 ,  H04N19/115 ,  H04N19/159

Abstract: In an example, a method of processing video data includes coding at least one of data that indicates a maximum palette size of a palette of color values for coding a block of video data or data that indicates a maximum palette predictor size of a palette predictor for determining the palette of color values. The method also includes coding the block of video data in accordance with the data.

Abstract translation: 在一个示例中，处理视频数据的方法包括编码指示用于编码视频数据块的颜色值的调色板的最大调色板尺寸的数据中的至少一个或指示调色板预测器的最大调色板预测器尺寸的数据 确定色彩值的调色板。 该方法还包括根据数据对视频数据块进行编码。