公开(公告)号：US09294776B2

公开(公告)日：2016-03-22

申请号：US14196538

申请日：2014-03-04

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Xiang Li ,  Jianle Chen ,  Ye-Kui Wang ,  Wei Pu

IPC: H04N7/12 ,  H04N19/17 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82 ,  H04N19/33 ,  H04N19/436

CPC classification number: H04N19/17 ,  H04N19/33 ,  H04N19/436 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

Abstract: In one example, a device for coding video data includes a video coder configured to code, for a tile of an enhancement layer picture, data indicating a number of tiles in a base layer picture that need to be coded before the tile of the enhancement layer picture can be coded, code tiles of the base layer picture corresponding to the number of tiles, and, after coding the tiles of the base layer picture, code the tile of the enhancement layer picture substantially in parallel with at least one other tile in the base layer picture.

Abstract translation: 在一个示例中，用于编码视频数据的设备包括：视频编码器，被配置为针对增强层图像的块编码指示在增强层的平铺之前需要被编码的基本层图像中的瓦片的数量的数据 可以对图像进行编码，对应于瓦片数量的基本图层图像的代码图块，并且在对基本图层图像的图块进行编码之后，将增强层图像的图块基本上与至少一个其它图块并行地编码 基层图片。

公开(公告)号：US20150261884A1

公开(公告)日：2015-09-17

申请号：US14659398

申请日：2015-03-16

Applicant: QUALCOMM Incorporated

Inventor： Chao Pang ,  Xiang Li ,  Joel Sole Rojals ,  Marta Karczewicz

IPC: G06F17/30

CPC classification number: G06F17/30949 ,  G06F17/30958 ,  H04N19/105 ,  H04N19/11 ,  H04N19/136 ,  H04N19/18 ,  H04N19/30 ,  H04N19/31 ,  H04N19/33 ,  H04N19/46 ,  H04N19/52 ,  H04N19/593 ,  H04N19/597

Abstract: An apparatus configured to encode video information of a picture includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store a hash table that includes at least one hash index corresponding to reference blocks in the picture, the reference blocks being a subset of available blocks in the picture. The processor is configured to map a current block to a hash index in the hash table based on the application of a hash function to the current block, identify, from the hash table, reference blocks that correspond to the hash index, select a prediction block from among the reference blocks based on a comparison of the current block to the reference blocks, and encode the video information using the selected prediction block.

Abstract translation: 被配置为对图像的视频信息进行编码的装置包括与存储器单元通信的存储器单元和处理器。 存储器单元被配置为存储散列表，其包括与图像中的参考块相对应的至少一个散列索引，参考块是图片中的可用块的子集。 处理器被配置为基于对当前块的散列函数的应用将当前块映射到散列表中的散列索引，从哈希表识别与散列索引对应的参考块，选择预测块 基于当前块与参考块的比较，从参考块之中，使用所选择的预测块对视频信息进行编码。

公开(公告)号：US20150256857A1

公开(公告)日：2015-09-10

申请号：US14638965

申请日：2015-03-04

Applicant: QUALCOMM Incorporated

Inventor： Rajan Laxman Joshi ,  Xiang Li ,  Marta Karczewicz ,  Krishnakanth Rapaka

IPC: H04N19/86 ,  H04N19/154 ,  H04N19/463 ,  H04N19/14 ,  H04N19/13 ,  H04N19/172

CPC classification number: H04N19/86 ,  H04N19/11 ,  H04N19/13 ,  H04N19/14 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/27 ,  H04N19/463

Abstract: A device configured to code video data includes: a memory configured to store video data, and at least one processor. The at least one processor is configured to: code information indicating whether a block from a current picture will flicker. A determination of whether the block from the current picture will flicker is based on the block in the current picture in a display order and a collocated block from a next picture in the display order.

Abstract translation: 被配置为对视频数据进行编码的设备包括：被配置为存储视频数据的存储器和至少一个处理器。 所述至少一个处理器被配置为：编码指示来自当前图片的块是否闪烁的信息。 确定来自当前图片的块是否闪烁是基于显示顺序中当前图片中的块和来自下一图像的并置块。

公开(公告)号：US20150229934A1

公开(公告)日：2015-08-13

申请号：US14571939

申请日：2014-12-16

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/31 ,  H04N19/513 ,  H04N19/29 ,  H04N19/33 ,  H04N19/593 ,  H04N19/34 ,  H04N19/44 ,  H04N19/597

CPC classification number: H04N19/31 ,  H04N19/105 ,  H04N19/124 ,  H04N19/136 ,  H04N19/186 ,  H04N19/29 ,  H04N19/30 ,  H04N19/33 ,  H04N19/34 ,  H04N19/42 ,  H04N19/44 ,  H04N19/513 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70

Abstract: Techniques are described for signaling information used to generate three-dimensional (3D) color lookup tables for color gamut scalability in multi-layer video coding. A lower layer of video data may include color data in a first color gamut and a higher layer of the video data may include color data in a second color gamut. To generate inter-layer reference pictures, a video encoder or video decoder performs color prediction using a 3D lookup table to convert the color data of a reference picture in the first color gamut to the second color gamut. According to the techniques, a video encoder may encode partition information and/or color values of a 3D lookup table generated for color gamut scalability. A video decoder may decode the partition information and/or color values to generate the 3D lookup table in order to perform color gamut scalability.

Abstract translation: 描述了用于在多层视频编码中产生用于色域可缩放性的三维（3D）颜色查找表的信令信息的技术。 视频数据的下层可以包括第一色域中的颜色数据，并且视频数据的较高层可以包括第二色域中的颜色数据。 为了产生层间参考图像，视频编码器或视频解码器使用3D查找表执行颜色预测，以将第一色域中的参考图像的颜色数据转换为第二色域。 根据该技术，视频编码器可以编码针对色域可伸缩性生成的3D查找表的分区信息和/或颜色值。 视频解码器可以解码分区信息和/或颜色值以生成3D查找表，以便执行色域可伸缩性。

公开(公告)号：US20150201052A1

公开(公告)日：2015-07-16

申请号：US14156329

申请日：2014-01-15

Applicant: QUALCOMM Incorporated

Inventor： Xiang Li ,  Nakul Midha ,  Varun Radhakrishnan ,  Chulkyu Lee

IPC: H04M1/02 ,  H04B17/00

CPC classification number: H04M1/0266 ,  G01R31/2848 ,  H04B17/00 ,  H04L25/0272 ,  H04L25/4917

Abstract: System, methods and apparatus are described that model analog behavior in a multi-wire, multi-phase communications link. A digital signal representative of a physical connection in a communications link and a virtual signal characterizing a three-phase signal transmitted over the physical connection are generated. The virtual signal may be configured to model one or more analog characteristics of the physical connection. The analog characteristics may include voltage states defining the three-phase signal. The analog characteristics of the physical connection include at least three voltage states corresponding to signaling states of the three-phase signal.

Abstract translation: 描述了在多线，多相通信链路中模拟模拟行为的系统，方法和装置。 生成表示通信链路中的物理连接的数字信号和表征通过物理连接发送的三相信号的虚拟信号。 虚拟信号可以被配置为建模物理连接的一个或多个模拟特性。 模拟特性可以包括定义三相信号的电压状态。 物理连接的模拟特性包括与三相信号的信令状态对应的至少三个电压状态。

公开(公告)号：US20140254669A1

公开(公告)日：2014-09-11

申请号：US14196538

申请日：2014-03-04

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Xiang Li ,  Jianle Chen ,  Ye-Kui Wang ,  Wei Pu

IPC: H04N19/503

CPC classification number: H04N19/17 ,  H04N19/33 ,  H04N19/436 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/80 ,  H04N19/82

Abstract: In one example, a device for coding video data includes a video coder configured to code, for a tile of an enhancement layer picture, data indicating a number of tiles in a base layer picture that need to be coded before the tile of the enhancement layer picture can be coded, code tiles of the base layer picture corresponding to the number of tiles, and, after coding the tiles of the base layer picture, code the tile of the enhancement layer picture substantially in parallel with at least one other tile in the base layer picture.

Abstract translation: 在一个示例中，用于编码视频数据的设备包括：视频编码器，被配置为针对增强层图像的块编码指示在增强层的平铺之前需要被编码的基本层图像中的瓦片的数量的数据 可以对图像进行编码，对应于瓦片数量的基本图层图像的代码图块，并且在对基本图层图像的图块进行编码之后，将增强层图像的图块基本上与至少一个其它图块并行地编码 基层图片。

公开(公告)号：US20140105299A1

公开(公告)日：2014-04-17

申请号：US14040290

申请日：2013-09-27

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Krishnakanth Rapaka ,  Marta Karczewicz ,  Xiang Li ,  Jianle Chen

IPC: H04N19/597 ,  H04N19/30

CPC classification number: H04N19/30 ,  H04N19/105 ,  H04N19/513 ,  H04N19/52 ,  H04N19/597

Abstract: In general, techniques are described for performing residual prediction in video coding. As one example, a device configured to code scalable or multi-view video data may comprise one or more processors configured to perform the techniques. The processors may determine a difference picture, for a current picture, based on a first reference picture in a same layer or view as the current picture and a decoded picture in a different layer or view as the current picture. The decoded picture may be in a same access unit as the first reference picture. The processors may perform bi-prediction based on the difference picture to code at least a portion of the current picture.

Abstract translation: 通常，描述了在视频编码中进行残差预测的技术。 作为一个示例，被配置为对可缩放或多视图视频数据进行编码的设备可以包括配置成执行技术的一个或多个处理器。 处理器可以基于与当前图片相同的层或视图中的第一参考图片和当前图片的不同图层或视图中的解码图片来确定当前图片的差分图片。 解码图像可以在与第一参考图片相同的存取单元中。 处理器可以基于差分图像执行双预测以对当前图像的至少一部分进行编码。

公开(公告)号：US20140064386A1

公开(公告)日：2014-03-06

申请号：US14017169

申请日：2013-09-03

Applicant: QUALCOMM Incorporated

Inventor： Jianle Chen ,  Liwei Guo ,  Xiang Li ,  Marta Karczewicz ,  Wei Pu

IPC: H04N7/26

CPC classification number: H04N19/30 ,  H04N19/117 ,  H04N19/187 ,  H04N19/33

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 phase displacement information between a first and second layer of video information. For example, the phase displacement information may correspond to a difference between a position of a pixel in the first layer and a corresponding position of the pixel in the second layer. The selected filter set can be an up-sampling filter or a down-sampling filter. The phase displacement information may be encoded as a syntax element 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第一和第二层视频信息之间的相位位移信息来选择并将其应用于视频信息。 例如，相位位移信息可以对应于第一层中的像素的位置与第二层中的像素的对应位置之间的差异。 所选择的滤波器组可以是上采样滤波器或下采样滤波器。 相位位移信息可以被编码为嵌入在视频比特流中的语法元素。

公开(公告)号：US11689740B2

公开(公告)日：2023-06-27

申请号：US17454456

申请日：2021-11-10

Applicant: QUALCOMM Incorporated

Inventor： Yi-Wen Chen ,  Wei-Jung Chien ,  Yu-Chen Sun ,  Li Zhang ,  Sungwon Lee ,  Xiang Li ,  Hsiao-Chiang Chuang ,  Jianle Chen ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/52 ,  H04N19/70 ,  H04N19/44 ,  H04N19/176 ,  H04N19/54 ,  H04N19/593

CPC classification number: H04N19/52 ,  H04N19/176 ,  H04N19/44 ,  H04N19/54 ,  H04N19/70 ,  H04N19/593

Abstract: A video coder may determine a motion vector of a non-adjacent block of a current picture of the video data. The non-adjacent block is non-adjacent to a current block of the current picture. Furthermore, the video coder determines, based on the motion vector of the non-adjacent block, a motion vector predictor (MVP) for the current block. The video coder may determine a motion vector of the current block. The video coder may also determine a predictive block based on the motion vector of the current block.

公开(公告)号：US11496747B2

公开(公告)日：2022-11-08

申请号：US15926550

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： Kai Zhang ,  Jianle Chen ,  Xiang Li ,  Marta Karczewicz

IPC: H04N7/18 ,  H04N19/159 ,  H04N19/176 ,  H04N19/11 ,  H04N19/593 ,  H04N19/61 ,  H04N19/139 ,  H04N19/463 ,  H04N19/105

Abstract: A method of decoding video data, including receiving a first block of video data encoded using an inter-prediction mode associating a first intra-prediction mode with the first block of video data, wherein the first intra-prediction mode is associated with a second block of video data, and determining a second intra-prediction mode for a neighbor block of video data based at least in part on the first intra-prediction mode.