公开(公告)号：US09451254B2

公开(公告)日：2016-09-20

申请号：US14334496

申请日：2014-07-17

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman Joshi ,  Joel Sole Rojals ,  Marta Karczewicz ,  Jewon Kang ,  Woo-Shik Kim

IPC: H04N19/593 ,  H04N19/176 ,  H04N19/70 ,  H04N19/117 ,  H04N19/82

CPC classification number: H04N19/593 ,  H04N19/117 ,  H04N19/176 ,  H04N19/70 ,  H04N19/82

Abstract: A video decoder may adaptively disable, based on a syntax element, one or more filters used for intra-prediction. In addition, the video decoder may perform intra-prediction to generate prediction data for a current block of a current video slice. Furthermore, a video encoder may adaptively disable one or more filters used for intra-prediction. Furthermore, the video encoder may signal a syntax element that controls the one or more filters. In addition, the video encoder may perform intra prediction to generate prediction data for a current video block the video data.

Abstract translation: 视频解码器可以基于语法元素自适应地禁用用于帧内预测的一个或多个滤波器。 此外，视频解码器可以执行帧内预测，​​以生成当前视频片段的当前块的预测数据。 此外，视频编码器可以自适应地禁用用于帧内预测的一个或多个滤波器。 此外，视频编码器可以发送控制一个或多个滤波器的语法元素。 此外，视频编码器可以执行帧内预测，​​以产生视频数据的当前视频块的预测数据。

公开(公告)号：US20160255352A1

公开(公告)日：2016-09-01

申请号：US15152244

申请日：2016-05-11

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/186 ,  H04N19/70 ,  H04N19/61 ,  H04N19/176

CPC classification number: H04N19/186 ,  H03M7/40 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91 ,  H04N19/93 ,  H04N19/94

Abstract: In an example, a method of decoding video data using palette mode may include receiving, from an encoded video bitstream, a first syntax element defining a value indicative of a scan order. The method may include receiving, from the encoded video bitstream, a second syntax element defining a value indicative of a swap operation. The method may include reconstructing a palette block from a plurality of palette index values based on the value of the second syntax element indicative of the swap operation.

Abstract translation: 在一个示例中，使用调色板模式对视频数据进行解码的方法可以包括从编码视频比特流接收定义表示扫描顺序的值的第一语法元素。 该方法可以包括从编码视频比特流中接收定义表示交换操作的值的第二语法元素。 该方法可以包括基于指示交换操作的第二语法元素的值从多个调色板索引值重建调色板块。

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：US20160105657A1

公开(公告)日：2016-04-14

申请号：US14871235

申请日：2015-09-30

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Jianle Chen ,  Rajan Laxman Joshi ,  Marta Karczewicz

IPC: H04N9/75 ,  H04N9/64 ,  H04N19/136 ,  H04N19/50 ,  H04N19/176 ,  G06T9/20 ,  H04N5/232

CPC classification number: H04N9/75 ,  G06T9/20 ,  H04N5/23206 ,  H04N9/642 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/50 ,  H04N19/60 ,  H04N19/61 ,  H04N19/85

Abstract: A video coder transforms, based on a difference between a bit depth of an initial luma sample and a bit depth of initial chroma samples, a set of initial samples to a set of modified samples. The set of initial samples may include the initial luma sample and the initial chroma samples. The initial chroma samples may include an initial Cb sample and an initial Cr sample. The set of modified samples may include a modified luma sample and modified chroma samples. The modified chroma samples may include a modified Cb sample and a modified Cr sample. Additionally, the video coder adds the modified samples to corresponding samples of a predictive block to produce reconstructed samples.

Abstract translation: 视频编码器基于初始亮度样本的位深度和初始色度样本的位深度之间的差异将一组初始样本转换为一组修改的样本。 初始样本集可以包括初始亮度样本和初始色度样本。 初始色度样品可以包括初始Cb样品和初始Cr样品。 经修改的样品组可包括经修改的亮度样本和经修改的色度样本。 修饰的色度样品可以包括修饰的Cb样品和修饰的Cr样品。 另外，视频编码器将修改的样本添加到预测块的相应样本以产生重建的样本。

公开(公告)号：US20160044308A1

公开(公告)日：2016-02-11

申请号：US14819306

申请日：2015-08-05

Applicant: QUALCOMM Incorporated

Inventor： Natan Haim Jacobson ,  Vijayaraghavan Thirumalai ,  Rajan Laxman Joshi ,  Min Dai

IPC: H04N19/105 ,  H04N19/112 ,  H04N19/182 ,  H04N19/159 ,  H04N19/174

CPC classification number: H04N19/105 ,  H04N19/112 ,  H04N19/159 ,  H04N19/174 ,  H04N19/182 ,  H04N19/593

Abstract: A method and apparatus for video coding with spatial prediction mode for multi-mode video coding is disclosed. In one aspect, the method includes coding a slice of video data, the slice including a plurality of pixels organized into a first line and a plurality of non-first lines. The coding of the slice further includes coding a current pixel of the first line in a spatial prediction mode using a previous pixel of the first line as a predictor and coding another pixel of a non-first line in a coding mode other than the spatial prediction mode.

Abstract translation: 公开了一种用于多模式视频编码的空间预测模式的视频编码方法和装置。 在一个方面，该方法包括对视频数据片进行编码，该片包括组织成第一行和多个非第一行的多个像素。 切片的编码还包括使用第一行的先前像素作为预测器在空间预测模式中编码第一行的当前像素，并且以空间预测以外的编码模式对非第一行的另一个像素进行编码 模式。

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。