公开(公告)号：WO2014134181A3

公开(公告)日：2014-10-23

申请号：PCT/US2014018716

申请日：2014-02-26

Applicant: QUALCOMM INC

Inventor： ZHANG LI ,  CHEN YING ,  KANG JEWON

IPC: H04N19/53 ,  H04N19/51 ,  H04N19/56 ,  H04N19/597

CPC classification number: H04N19/51 ,  H04N19/00733 ,  H04N19/44 ,  H04N19/52 ,  H04N19/53 ,  H04N19/56

Abstract: In one example of the disclosure, a method of coding video data comprises coding video data using texture-first coding, and performing an NBDV derivation process for a block of the video data using a plurality of neighboring blocks. The NBDV derivation process comprises designating a motion vector associated with a neighboring block of the plurality of neighboring blocks coded with a block-based view synthesis prediction (BVSP) mode as an available disparity motion.

Abstract translation: 在本公开的一个示例中，一种编码视频数据的方法包括使用纹理优先编码对视频数据进行编码，并且使用多个相邻块对视频数据的块执行NBDV推导过程。 NBDV导出过程包括将与利用基于块的视图合成预测（BVSP）模式编码的多个相邻块的相邻块相关联的运动向量指定为可用差异运动。

公开(公告)号：WO2015138957A3

公开(公告)日：2015-11-05

申请号：PCT/US2015020535

申请日：2015-03-13

Applicant: QUALCOMM INC

Inventor： ZHANG LI ,  CHEN JIANLE ,  KARCZEWICZ MARTA ,  SOLE ROJALS JOEL ,  KIM WOO-SHIK

IPC: H04N19/176 ,  H04N19/126 ,  H04N19/134 ,  H04N19/14 ,  H04N19/157 ,  H04N19/18 ,  H04N19/184 ,  H04N19/186 ,  H04N19/70

CPC classification number: H04N19/126 ,  H04N19/102 ,  H04N19/103 ,  H04N19/11 ,  H04N19/12 ,  H04N19/134 ,  H04N19/136 ,  H04N19/14 ,  H04N19/154 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/186 ,  H04N19/196 ,  H04N19/33 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70

Abstract: In general, this disclosure describes techniques for coding video blocks using a color-space conversion process. A video coder, such as a video encoder or a video decoder, may determine a bit-depth of a luma component of the video data and a bit-depth of a chroma component of the video data. In response to the bit-depth of the luma component being different than the bit depth of the chroma component, the video coder may modify one or both of the bit depth of the luma component and the bit depth of the chroma component such that the bit depths are equal. The video coder may further apply the color-space transform process in encoding the video data.

Abstract translation: 一般来说，本发明描述用于使用色彩空间转换过程来译码视频块的技术。 视频译码器（例如视频编码器或视频解码器）可确定视频数据的亮度分量的位深度及视频数据的色度分量的位深度。 响应于亮度分量的比特深度不同于色度分量的比特深度，视频译码器可修改亮度分量的比特深度及色度分量的比特深度中的一者或两者，使得比特 深度是相等的。 视频译码器可进一步应用颜色空间变换处理来编码视频数据。

公开(公告)号：WO2004040787A2

公开(公告)日：2004-05-13

申请号：PCT/US0334784

申请日：2003-10-31

Applicant: QUALCOMM INC

Inventor： SHIU DA-SHAN ,  ZHANG LI ,  SY EUGENE ,  MALDONADO DAVID ,  DHALIWAL UPKAR

IPC: H03G3/30 ,  H04B1/38

CPC classification number: H03G3/3036

Abstract: Techniques for improved low latency frequency switching are disclosed. In one embodiment, a controller (510) receives a frequency switch command and generates a frequency switch signal at a time determined in accordance with a system timer (520). In another embodiment, gain calibration is initiated subsequent to the frequency switch signal delayed by the expected frequency synthesizer settling time. In yet another embodiment, DC cancellation control (540) and gain control (530) are iterated to perform gain calibration, with signaling to control the iterations without need for processor (550) intervention. Various other embodiments are also presented. Aspects of the embodiments disclosed may yield the benefit of reducing latency during frequency switching, allowing for increased measurements at alternate frequencies, reduced time spent on alternate frequencies, and the capacity and throughput improvements that follow from minimization of disruption of an active communication session and improved neighbor selection.

Abstract translation: 公开了用于改进的低延迟频率切换的技术。 在一个实施例中，控制器（510）接收频率切换命令并在根据系统定时器（520）确定的时间产生频率切换信号。 在另一个实施例中，在频率切换信号延迟预期的频率合成器建立时间之后，开始增益校准。 在又一个实施例中，迭代DC消除控制（540）和增益控制（530）以执行增益校准，利用信令来控制迭代而不需要处理器（550）干预。 还呈现了各种其他实施例。 所公开的实施例的各方面可以产生减少频率切换期间的等待时间的益处，允许在交替频率处增加测量，减少在替代频率上花费的时间，以及从最小化活动通信会话的中断之后改进容量和吞吐量，并且改进 邻居选择。

公开(公告)号：WO2014011652A3

公开(公告)日：2015-02-05

申请号：PCT/US2013049751

申请日：2013-07-09

Applicant: QUALCOMM INC

Inventor： CHEN YING ,  SEREGIN VADIM ,  KARCZEWICZ MARTA ,  ZHANG LI

IPC: H04N19/51 ,  H04N19/597

CPC classification number: H04N19/503 ,  H04N19/105 ,  H04N19/147 ,  H04N19/172

Abstract: A first reference index value indicates a position, within a reference picture list associated with a current prediction unit (PU) of a current picture, of a first reference picture. A reference index of a co-located PU of a co-located picture indicates a position, within a reference picture list associated with the co-located PU of the co-located picture, of a second reference picture. When the first reference picture and the second reference picture belong to different reference picture types, a video coder sets a reference index of a temporal merging candidate to a second reference index value. The second reference index value is different than the first reference index value.

Abstract translation: 第一参考索引值指示与第一参考图片的当前图片的当前预测单元（PU）相关联的参考图片列表内的位置。 同位置图片的同位置PU的参考索引指示与第二参考图片的同位置图片的同位置PU相关联的参考图片列表内的位置。 当第一参考图像和第二参考图像属于不同的参考图像类型时，视频编码器将时间合并候选的参考索引设置为第二参考索引值。 第二参考索引值不同于第一参考索引值。

公开(公告)号：WO2014138224A3

公开(公告)日：2014-11-06

申请号：PCT/US2014020729

申请日：2014-03-05

Applicant: QUALCOMM INC

Inventor： ZHANG LI ,  CHEN YING ,  KARCZEWICZ MARTA

IPC: H04N19/463 ,  H04N13/00 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70 ,  H04N19/93

CPC classification number: H04N13/0048 ,  H04N19/463 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70 ,  H04N19/93

Abstract: In an example, a method of coding video data includes determining a first depth value of a depth look up table (DLT), where the first depth value is associated with a first pixel of the video data. The method also includes determining a second depth value of the DLT, where the second depth value is associated with a second pixel of the video data. The method also includes coding the DLT including coding the second depth value relative to the first depth value.

Abstract translation: 在一个示例中，视频数据编码的方法包括确定深度查找表（DLT）的第一深度值，其中第一深度值与视频数据的第一像素相关联。 该方法还包括确定DLT的第二深度值，其中第二深度值与视频数据的第二像素相关联。 该方法还包括编码DLT，包括相对于第一深度值对第二深度值进行编码。

公开(公告)号：WO2014153340A2

公开(公告)日：2014-09-25

申请号：PCT/US2014031029

申请日：2014-03-18

Applicant: QUALCOMM INC

Inventor： THIRUMALAI VIJAYARAGHAVAN ,  ZHANG LI ,  CHEN YING ,  KARCZEWICZ MARTA

IPC: H04N19/597

CPC classification number: H04N13/0048 ,  H04N19/597

Abstract: A device for coding three-dimensional video data includes a video coder configured to determine a first block of a first texture view is to be coded using a block-based view synthesis mode; locate, in a depth view, a first depth block that corresponds to the first block of the first texture view; determine depth values of two or more corner positions of the first depth block; based on the depth values, derive a disparity vector for the first block; using the disparity vector, locate a first block of a second texture view; and, inter-predict the first block of the first texture view using the first block of the second texture view.

Abstract translation: 一种用于对三维视频数据进行编码的设备包括：视频编码器，被配置为使用基于块的视图合成模式来确定要编码的第一纹理图像的第一块; 在深度视图中定位与第一纹理视图的第一块对应的第一深度块; 确定第一深度块的两个或多个角位置的深度值; 基于深度值，导出第一块的视差向量; 使用视差向量，定位第二纹理视图的第一块; 并且使用第二纹理视图的第一块来相互预测第一纹理图像的第一块。

公开(公告)号：WO2014047351A3

公开(公告)日：2014-09-18

申请号：PCT/US2013060718

申请日：2013-09-19

Applicant: QUALCOMM INC

Inventor： KANG JEWON ,  CHEN YING ,  ZHANG LI ,  KARCZEWICZ MARTA

IPC: H04N19/597

CPC classification number: H04N13/0048 ,  H04N19/105 ,  H04N19/134 ,  H04N19/176 ,  H04N19/52 ,  H04N19/597 ,  H04N19/70

Abstract: When coding multiview video data, a video encoder and video decoder may select a candidate picture from one of one or more random access point view component (RAPVC) pictures and one or more pictures having a lowest temporal identification value. The video encoder and video decoder may determine whether a block in the selected candidate picture is inter-predicted with a disparity motion vector and determine a disparity vector for a current block of a current picture based on the disparity motion vector. The video encoder and video decoder may inter-prediction encode or decode, respectively, the current block based on the determined disparity vector.

Abstract translation: 当编码多视点视频数据时，视频编码器和视频解码器可以从一个或多个随机接入点视图分量（RAPVC）图像和具有最低时间标识值的一个或多个图像中的一个选择候选图像。 视频编码器和视频解码器可以确定所选择的候选图像中的块是否以视差运动矢量进行预测，并且基于视差运动矢量确定当前图像的当前块的视差向量。 视频编码器和视频解码器可以基于所确定的视差矢量来分别对当前块进行内部预测编码或解码。

公开(公告)号：WO2015138943A2

公开(公告)日：2015-09-17

申请号：PCT/US2015020514

申请日：2015-03-13

Applicant: QUALCOMM INC

Inventor： ZHANG LI ,  CHEN JIANLE ,  KARCZEWICZ MARTA ,  SOLE ROJALS JOEL ,  KIM WOO-SHIK

IPC: H04N19/176

CPC classification number: H04N19/126 ,  H04N19/102 ,  H04N19/103 ,  H04N19/11 ,  H04N19/12 ,  H04N19/134 ,  H04N19/136 ,  H04N19/14 ,  H04N19/154 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/186 ,  H04N19/196 ,  H04N19/33 ,  H04N19/44 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70

Abstract: In general, this disclosure describes techniques for coding video blocks using a color-space conversion process. A video coder, such as a video encoder or a video decoder, may determine whether to use color-space conversion for a coding unit and set a value of a syntax element of the coding unit to indicate the use of color-space conversion. The video coder may apply a color-space transform process in encoding the coding unit. The video coder may decode the syntax element of the coding unit. The video coder may determine whether a value of the syntax element indicates that the coding unit was encoded using color-space conversion. The video coder may apply a color-space inverse transform process in decoding the coding unit in response to determining that the syntax element indicates that the coding unit was coded using color-space conversion.

Abstract translation: 一般来说，本发明描述用于使用色彩空间转换过程来译码视频块的技术。 诸如视频编码器或视频解码器的视频译码器可确定是否对编码单元使用色彩空间转换且将编码单元的语法元素的值设定为指示使用色彩空间转换。 视频译码器可在编码单元中应用色彩空间变换过程。 视频译码器可解码译码单元的语法元素。 视频译码器可确定语法元素的值是否指示编码单元是使用色彩空间转换来编码的。 视频译码器可响应于确定语法元素指示编码单元是使用色彩空间转换来译码而将解码编码单元应用色彩空间逆变换过程。

公开(公告)号：WO2014153343A3

公开(公告)日：2015-02-19

申请号：PCT/US2014031039

申请日：2014-03-18

Applicant: QUALCOMM INC

Inventor： THIRUMALAI VIJAYARAGHAVAN ,  ZHANG LI ,  CHEN YING ,  KARCZEWICZ MARTA

IPC: H04N19/597

CPC classification number: H04N13/0048 ,  H04N19/597

Abstract: A video coder can be configured to perform texture first coding for a first texture view, a first depth view, a second texture view, and a second depth view; for a macroblock of the second texture view, locate a depth block of the first depth view that corresponds to the macroblock; based on at least one depth value of the depth block, derive a disparity vector for the macroblock; code a first sub-block of the macroblock based on the derived disparity vector; and, code a second sub-block of the macroblock based on the derived disparity vector.

Abstract translation: 视频编码器可以被配置为对第一纹理视图，第一深度视图，第二纹理视图和第二深度视图执行纹理第一编码; 对于第二纹理视图的宏块，定位与宏块对应的第一深度视图的深度块; 基于所述深度块的至少一个深度值，导出所述宏块的视差向量; 基于导出的视差矢量对宏块的第一子块进行编码; 并且基于导出的视差矢量对该宏块的第二子块进行编码。

公开(公告)号：WO2014134174A3

公开(公告)日：2014-10-23

申请号：PCT/US2014018694

申请日：2014-02-26

Applicant: QUALCOMM INC

Inventor： ZHANG LI ,  CHEN YING ,  KANG JEWON

IPC: H04N19/51 ,  H04N19/56 ,  H04N19/597

CPC classification number: H04N19/51 ,  H04N19/00733 ,  H04N19/44 ,  H04N19/52 ,  H04N19/53 ,  H04N19/56

Abstract: In one example of the disclosure, a method of coding video data comprises coding video data using texture-first coding, and performing an NBDV derivation process for a block of the video data using a plurality of neighboring blocks. The NBDV derivation process comprises designating a motion vector associated with a neighboring block of the plurality of neighboring blocks coded with a block-based view synthesis prediction (BVSP) mode as an available disparity motion.

Abstract translation: 在本公开的一个示例中，视频数据的编码方法包括使用纹理优先编码对视频数据进行编码，以及使用多个相邻块对视频数据的块执行NBDV导出处理。 NBDV导出处理包括指定与基于块视图合成预测（BVSP）模式编码的多个相邻块的相邻块相关联的运动矢量作为可用视差运动。