公开(公告)号：US20160227254A1

公开(公告)日：2016-08-04

申请号：US15010347

申请日：2016-01-29

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/70 ,  H04N19/176 ,  H04N19/43 ,  H04N19/597 ,  H04N19/105 ,  H04N19/13 ,  H04N19/61 ,  H04N19/593 ,  H04N19/52 ,  H04N19/117 ,  H04N19/186 ,  H04N19/124

CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/117 ,  H04N19/13 ,  H04N19/176 ,  H04N19/186 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597

Abstract: In general, techniques for coding video data are described. An example device for coding video data includes a memory configured to store at least a portion of the video data, and one or more processors. The one or more processors are configured to determine whether a palette run starts at a beginning of a scan-line of a block of the video data, when the palette run starts at the beginning of the scan-line, code, for the palette run, a flag that indicates whether the palette run concludes at an end of a scan-line of the block, and code the palette run based on a value of the flag.

Abstract translation: 一般来说，描述用于编码视频数据的技术。 用于编码视频数据的示例性装置包括被配置为存储视频数据的至少一部分的存储器以及一个或多个处理器。 一个或多个处理器被配置为当调色板运行在扫描线的开始（代码）的调色板运行开始时，确定调色板运行是否在视频数据块的扫描线的开始处开始 ，一个标志，指示调色板运行是否在块的扫描线的末尾结束，并根据该标志的值对调色板运行进行编码。

公开(公告)号：US20160227239A1

公开(公告)日：2016-08-04

申请号：US15004508

申请日：2016-01-22

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/44 ,  H04N19/70 ,  H04N19/50 ,  H04N19/176

CPC classification number: H04N19/176 ,  H04N19/593 ,  H04N19/70

Abstract: Receiving a plurality of syntax elements that are indicative of a palette that was used to encode a block of video data, the plurality of syntax elements including a first syntax element that indicates a number of palette values for the palette that are explicitly signaled in the encoded video bitstream, wherein the first syntax element is encoded using one or more Golomb codes such that the length of the encoded first syntax element is less than or equal to a predetermined maximum number of bits, decoding the plurality of syntax elements, including decoding the first syntax element using the one or more Golomb codes, reconstructing the palette based on the decoded plurality of syntax elements, and decoding the block of video data using the reconstructed palette.

Abstract translation: 接收指示用于编码视频数据块的调色板的多个语法元素，所述多个语法元素包括第一语法元素，所述第一语法元素指示在所编码的所述调色板中明确地通知所述调色板的调色板值的数量 视频比特流，其中使用一个或多个Golomb码对第一语法元素进行编码，使得编码的第一语法元素的长度小于或等于预定的最大位数，解码多个语法元素，包括解码第一语法元素 使用所述一个或多个Golomb码的语法元素，基于所解码的多个语法元素重构所述调色板，以及使用所述重构的调色板解码所述视频数据块。

公开(公告)号：US20160182913A1

公开(公告)日：2016-06-23

申请号：US14973648

申请日：2015-12-17

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/186 ,  H04N19/124 ,  H04N19/139 ,  H04N19/587 ,  H04N19/44 ,  H04N19/61 ,  H04N19/96 ,  H04N19/59 ,  H04N19/80 ,  H04N19/176

CPC classification number: H04N19/186 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/182 ,  H04N19/45 ,  H04N19/587 ,  H04N19/59 ,  H04N19/61 ,  H04N19/80 ,  H04N19/90 ,  H04N19/93 ,  H04N19/96

Abstract: Techniques are described to extend palette-mode coding techniques to cases where chroma components are at a different resolution than luma components. The entries of the palette table includes three color values and the three color values or a single one of the three color values are selected based on whether a pixel includes both a luma component and chroma components or only a luma component.

Abstract translation: 描述了技术来将调色板模式编码技术扩展到色度分量与亮度分量不同的分辨率的情况。 调色板表的条目包括三个颜色值，并且基于像素是包括亮度分量和色度分量还是仅包括亮度分量来选择三个颜色值或三个颜色值中的单个颜色值。

公开(公告)号：US20160105685A1

公开(公告)日：2016-04-14

申请号：US14877779

申请日：2015-10-07

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/593 ,  H04N19/44 ,  H04N19/186 ,  H04N19/176 ,  H04N19/117

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/44 ,  H04N19/70 ,  H04N19/82

Abstract: Techniques for coding video data include determining that a block of a first component of the video data is intra-predicted using one of a DC mode, a horizontal mode, or a vertical mode, determining that a corresponding block of a second component of the video data is intra-predicted using the same mode as the block of the first component according to a direct mode to form a predicted block for the second component, and boundary filtering the predicted block in response to the determinations. In some examples, the first component is a luma component, and the second component is a chroma component.

Abstract translation: 用于编码视频数据的技术包括：使用DC模式，水平模式或垂直模式之一来确定视频数据的第一分量的块被帧内预测，​​确定视频的第二分量的对应块 根据直接模式，使用与第一分量的块相同的模式来对数据进行帧内预测，​​以形成用于第二分量的预测块，并响应于确定来对预测块进行边界过滤。 在一些示例中，第一分量是亮度分量，第二分量是色度分量。

公开(公告)号：US20160105676A1

公开(公告)日：2016-04-14

申请号：US14878697

申请日：2015-10-08

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/176 ,  H04N19/44 ,  H04N19/90 ,  H04N19/13 ,  H04N19/93

CPC classification number: H04N19/176 ,  H04N19/13 ,  H04N19/186 ,  H04N19/44 ,  H04N19/46 ,  H04N19/48 ,  H04N19/50 ,  H04N19/503 ,  H04N19/593 ,  H04N19/70 ,  H04N19/90 ,  H04N19/93

Abstract: A video decoder may obtain a syntax element from a bitstream comprising an encoded representation of a block of video data. The block comprises a series of runs, each of which may consist of one pixel or two or more consecutive pixels. Furthermore, the video decoder may obtain a set of palette run length syntax elements indicating lengths of one or more of the runs. The video decoder may determine, based on the syntax element, that the palette run length syntax elements do not include a palette run length syntax element indicating a length of the first run. Rather, the video decoder determines, based on the lengths indicated by the set of palette run syntax elements, the length of the first run. The video decoder may determine, based on the palette sample modes of the pixels, palette indices of the pixels, each indicating an entry in a palette.

Abstract translation: 视频解码器可以从包含视频数据块的编码表示的比特流中获得语法元素。 该块包括一系列运行，每个运行可以由一个像素或两个或更多个连续像素组成。 此外，视频解码器可以获得指示运行中的一个或多个的长度的调色板游程长度语法元素的集合。 视频解码器可以基于语法元素来确定调色板游程长度语法元素不包括指示第一次运行的长度的调色板游程长度语法元素。 相反，视频解码器基于由调色板运行语法元素组指示的长度来确定第一次运行的长度。 视频解码器可以基于像素的调色板采样模式来确定像素的调色板索引，每个指示调色板中的条目。

公开(公告)号：US20150373340A1

公开(公告)日：2015-12-24

申请号：US14743883

申请日：2015-06-18

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/182 ,  H04N19/93 ,  H04N19/119

CPC classification number: H04N19/176 ,  H04N19/105 ,  H04N19/119 ,  H04N19/182 ,  H04N19/186 ,  H04N19/48 ,  H04N19/587 ,  H04N19/593 ,  H04N19/70 ,  H04N19/93

Abstract: An example method of decoding video data includes determining a palette for decoding a block, the palette including entries each having a respective palette index, determining a reference run of palette indices for first pixels of the block, and determining a current run of palette indices for second pixels of the block, based on the reference run. Determining the second plurality of palette indices includes locating a reference index of the reference run, the reference index being spaced at least one line from an initial index of the current run, determining a run length of the reference run, a final index of the reference run being separated from the initial index of the current run by at least one index, copying the palette indices of the reference run as the current run of palette indices, and decoding pixels of the copied current run using the palette.

Abstract translation: 解码视频数据的示例性方法包括确定用于解码块的调色板，所述调色板包括各自具有相应调色板索引的条目，确定块的第一像素的调色板索引的参考运行，以及确定当前的调色板索引的运行 基于参考运行的块的第二个像素。 确定第二多个调色板索引包括定位参考运行的参考索引，参考索引与当前运行的初始索引间隔至少一行，确定参考运行的运行长度，参考运行的最终索引 运行通过至少一个索引与当前运行的初始索引分离，将参考运行的调色板索引复制为当前运行的调色板索引，并使用调色板解码复制的当前运行的像素。

公开(公告)号：US20150264363A1

公开(公告)日：2015-09-17

申请号：US14656087

申请日：2015-03-12

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/186 ,  H04N19/70

CPC classification number: H04N19/186 ,  H04N19/176 ,  H04N19/70 ,  H04N19/90 ,  H04N19/93

Abstract: In an example, a method of coding video data includes determining, by a video coder and for a block of video data, a palette having a plurality of entries indicating a plurality of respective color values, wherein a first line of the block of video data includes a pixel located adjacent to an edge of the block of video data, and wherein a second line of the block of video data includes a pixel located adjacent to the edge of the block and adjacent to the pixel of the first line. In this example, the method also includes coding, in a scan order, index values that map pixels of the block to entries in the palette, wherein the pixel of the second line immediately follows the pixel of the first line in the scan order.

Abstract translation: 在一个示例中，视频数据的编码方法包括：通过视频编码器和视频数据块确定具有指示多个相应颜色值的多个条目的调色板，其中视频数据块的第一行 包括位于视频数据块的边缘附近的像素，并且其中视频数据块的第二行包括位于与块的边缘相邻并且与第一行的像素相邻的像素。 在该示例中，该方法还包括以扫描顺序编码将块的像素映射到调色板中的条目的索引值，其中第二行的像素紧跟着扫描顺序中的第一行的像素。

公开(公告)号：US20150264348A1

公开(公告)日：2015-09-17

申请号：US14659180

申请日：2015-03-16

Applicant: QUALCOMM Incorporated

Inventor： Feng Zou ,  Ying Chen ,  Chao Pang ,  Marta Karczewicz ,  Joel Sole Rojals ,  Wei Pu

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/70 ,  H04N19/176

CPC classification number: H04N19/70 ,  H04N19/593

Abstract: According to aspects of this disclosure, a device for decoding video data includes a memory configured to store the video data and a video decoder comprising one or more processor configured to determine that a current block of the video data is to be decoded using a 1D dictionary mode; receive, for a current pixel of the current block, a first syntax element indicating a starting location of reference pixels and a second syntax element identifying a number of reference pixels; based on the first syntax element and the second syntax element, locate a plurality of luma samples corresponding to the reference pixels; based on the first syntax element and the second syntax element, locate a plurality of chroma samples corresponding to the reference pixels; and copy the plurality of luma samples and the plurality of chroma samples to decode the current block.

Abstract translation: 根据本公开的方面，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包括一个或多个处理器的视频解码器，该处理器被配置为使用1D字典来确定视频数据的当前块要被解码 模式; 针对当前块的当前像素接收指示参考像素的起始位置的第一语法元素和标识参考像素数量的第二语法元素; 基于第一语法元素和第二语法元素，定位与参考像素相对应的多个亮度样本; 基于第一语法元素和第二语法元素，定位与参考像素对应的多个色度样本; 并复制多个亮度样本和多个色度采样以解码当前块。

公开(公告)号：US11743508B2

公开(公告)日：2023-08-29

申请号：US17373525

申请日：2021-07-12

Applicant: QUALCOMM Incorporated

Inventor： Hsiao-Chiang Chuang ,  Xiang Li ,  Jianle Chen ,  Feng Zou ,  Wei-Jung Chien ,  Yi-Wen Chen ,  Marta Karczewicz

IPC: H04N19/96 ,  H04N19/119 ,  H04N19/463 ,  H04N19/134 ,  H04N19/176 ,  H04N19/593

CPC classification number: H04N19/96 ,  H04N19/119 ,  H04N19/134 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593

Abstract: An example device includes a memory to store the video data, and processing circuitry in communication with the memory. The processing circuitry is configured to compare a value of a dimension of a current block of the stored video data to a value of a corresponding dimension of a neighboring block of the current block to obtain a relative dimension value. The processing circuitry is further configured to determine, based on the relative dimension value, that the current block is to be partitioned according to a prediction tree (PT) portion of a multi-type tree-based partitioning scheme. The PT portion comprises partitioning according to one of a binary tree structure or a center-side triple tree structure. The processing circuitry is further configured to partition, based on the determination, the current block according to the PT portion, to form a plurality of sub-blocks.

公开(公告)号：US11503324B2

公开(公告)日：2022-11-15

申请号：US16735475

申请日：2020-01-06

Applicant: QUALCOMM Incorporated

Inventor： Feng Zou ,  Jianle Chen ,  Marta Karczewicz ,  Xiang Li ,  Hsiao-Chiang Chuang ,  Wei-Jung Chien

IPC: H04N19/513 ,  H04N19/124 ,  H04N19/537 ,  H04N19/52 ,  H04N19/18 ,  H04N19/44 ,  H04N19/567 ,  H04N19/91

Abstract: An example method includes determining, without receiving explicit signaling, whether motion compensation for a current block of a current picture of video data is to be performed using a four-parameter affine motion model (AMM) defined by two motion vectors (MVs) or using a six-parameter AMM defined by three MVs; deriving values of predictors for MVs of the AMM of the current block; decoding a representation of differences between the values of the MVs of the AMM for the current block and the values of the predictors; determining the values of the MVs of the AMM for the current block from the values of the predictors and the decoded differences; determining, based on the determined values of the MVs of the AMM for the current block of video data, a predictor block of video data; and reconstructing the current block based on the predictor block.