公开(公告)号：US20160100177A1

公开(公告)日：2016-04-07

申请号：US14875486

申请日：2015-10-05

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/186 ,  H04N19/44 ,  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 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 be encoded according to a kth order non-uniform truncated exponential-Golomb (TEGk) coding scheme and includes a unary prefix code word and a suffix code word. The method may include entropy decoding the encoded palette mode information using the kth order non-uniform truncated exponential-Golomb (TEGk) coding scheme. The kth order non-uniform TEGk coding scheme is different from a kth order exponential-Golomb (EGk) coding scheme and a kth order truncated exponential-Golomb (TEGk) coding scheme. The method may include decoding the palette mode encoded block of video data using the decoded palette mode information.

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根据第k阶非均匀截取指数 - 哥伦布（TEGK）编码方案进行编码，并且包括一字前缀码字和后缀码字。 该方法可以包括使用第k阶非均匀截断指数哥伦布（TEGK）编码方案熵解码编码的调色板模式信息。 第k阶非均匀TEGK编码方案与第k阶指数 - 哥伦布（EGK）编码方案和第k阶截取指数 - 哥伦布（TEGK）编码方案不同。 该方法可以包括使用解码的调色板模式信息解码调色板模式编码的视频数据块。

公开(公告)号：US20160100168A1

公开(公告)日：2016-04-07

申请号：US14876594

申请日：2015-10-06

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/60 ,  H04N19/44

CPC classification number: H04N19/124 ,  H04N19/12 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/60 ,  H05K999/99

Abstract: A device for decoding video data is configured to determine, based on a chroma sampling format for the video data, that adaptive color transform is enabled for one or more blocks of the video data; determine a quantization parameter for the one or more blocks based on determining that the adaptive color transform is enabled; and dequantize transform coefficients based on the determined quantization parameter. A device for decoding video data is configured to determine for one or more blocks of the video data that adaptive color transform is enabled; receive in a picture parameter set, one or more offset values in response to adaptive color transform being enabled; determine a quantization parameter for a first color component of a first color space based on a first of the one or more offset values; and dequantize transform coefficients based on the quantization parameter.

Abstract translation: 用于解码视频数据的设备被配置为基于视频数据的色度采样格式来确定对于视频数据的一个或多个块启用自适应颜色变换; 基于确定所述自适应颜色变换被启用来确定所述一个或多个块的量化参数; 并且基于所确定的量化参数去量化变换系数。 用于对视频数据进行解码的设备被配置为为视频数据的一个或多个块确定自适应颜色变换被启用; 在图像参数集中接收响应于自适应颜色变换被启用的一个或多个偏移值; 基于所述一个或多个偏移值中的第一个来确定第一颜色空间的第一颜色分量的量化参数; 并基于量化参数去量化变换系数。

公开(公告)号：US20160100167A1

公开(公告)日：2016-04-07

申请号：US14876574

申请日：2015-10-06

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/124 ,  H04N19/44 ,  H04N19/18 ,  H04N19/186

CPC classification number: H04N19/124 ,  H04N19/12 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/60 ,  H05K999/99

Abstract: A device for decoding video data is configured to determine for one or more blocks of the video data that adaptive color transform is enabled; determine a quantization parameter for the one or more blocks; in response to a value of the quantization parameter being below a threshold, modify the quantization parameter to determine a modified quantization parameter; and dequantize transform coefficients based on the modified quantization parameter.

Abstract translation: 用于对视频数据进行解码的设备被配置为为视频数据的一个或多个块确定自适应颜色变换被启用; 确定所述一个或多个块的量化参数; 响应于所述量化参数的值低于阈值，修改所述量化参数以确定修改的量化参数; 并且基于修改的量化参数去量化变换系数。

公开(公告)号：US09277241B2

公开(公告)日：2016-03-01

申请号：US14463366

申请日：2014-08-19

Applicant: QUALCOMM Incorporated

Inventor： Wei-Jung Chien ,  Joel Sole Rojals ,  Marta Karczewicz

IPC: H04N19/103 ,  H04N19/136 ,  H04N19/174 ,  H04N19/60 ,  H03M7/40 ,  H04N19/13 ,  H04N19/91 ,  H04N19/50 ,  H04N19/176

CPC classification number: H04N19/60 ,  H03M7/4018 ,  H04N19/103 ,  H04N19/13 ,  H04N19/136 ,  H04N19/174 ,  H04N19/176 ,  H04N19/50 ,  H04N19/91

Abstract: A reduction in the number of binarizations and/or contexts used in context adaptive binary arithmetic coding (CABAC) for video coding is proposed. In particular, this disclosure proposes techniques that may lower the number contexts used in CABAC by up to 56.

公开(公告)号：US20160057420A1

公开(公告)日：2016-02-25

申请号：US14831644

申请日：2015-08-20

Applicant: QUALCOMM Incorporated

Inventor： Chao Pang ,  Krishnakanth Rapaka ,  Ye-Kui Wang ,  Joel Sole Rojals ,  Marta Karczewicz

IPC: H04N19/124 ,  H04N19/513 ,  H04N19/176

CPC classification number: H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/523 ,  H04N19/593 ,  H04N19/70

Abstract: A video coder may include a current picture and a reference picture in a reference picture list. The video coder may determine a co-located block of the reference picture. The co-located block is co-located with a current block of the current picture. Furthermore, the video coder derives a temporal motion vector predictor from the co-located block and may determine the temporal motion vector predictor has sub-pixel precision. The video coder may right-shift the temporal motion vector predictor determined to have sub-pixel precision. In addition, the video coder may determine, based on the right-shifted temporal motion vector predictor, a predictive block within the current picture.

Abstract translation: 视频编码器可以在参考图片列表中包括当前图片和参考图片。 视频编码器可以确定参考图片的共同定位块。 共址块与当前图像的当前块共同定位。 此外，视频编码器从共址块导出时间运动矢量预测器，并且可以确定时间运动矢量预测器具有子像素精度。 视频编码器可以对确定为具有子像素精度的时间运动矢量预测器进行右移。 此外，视频编码器可以基于右移时间运动矢量预测器确定当前图像内的预测块。

公开(公告)号：US20160050419A1

公开(公告)日：2016-02-18

申请号：US14777212

申请日：2013-03-22

Applicant: Xin ZHAO ,  Li ZHANG ,  Ying CHEN ,  Marta KARCZEWICZ ,  QUALCOMM INCORPORATED

Inventor： Xin Zhao ,  Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N19/176 ,  H04N19/597 ,  H04N19/44 ,  H04N19/169

CPC classification number: H04N19/176 ,  H04N19/1887 ,  H04N19/44 ,  H04N19/597

Abstract: In an example, a process for coding video data includes coding, with a variable length code, a syntax element indicating depth modeling mode (DMM) information for coding a depth block of video data. The process also includes coding the depth block based on the DMM information.

Abstract translation: 在一个示例中，用于编码视频数据的过程包括用可变长度代码编码指示用于对视频数据的深度块进行编码的深度建模模式（DMM）信息的语法元素。 该过程还包括基于DMM信息对深度块进行编码。

公开(公告)号：US09264706B2

公开(公告)日：2016-02-16

申请号：US13828173

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Marta Karczewicz ,  Vadim Seregin ,  Xianglin Wang ,  Muhammed Zeyd Coban

IPC: H04N19/70 ,  H04N19/13 ,  H04N19/463 ,  H04N19/103 ,  H03M7/30

CPC classification number: H04N19/103 ,  H03M7/30 ,  H04N19/13 ,  H04N19/463 ,  H04N19/70

Abstract: In an example, aspects of this disclosure relate to a method for decoding a reference index syntax element in a video decoding process that includes decoding at least one bin of a reference index value with a context coding mode of a context-adaptive binary arithmetic coding (CABAC) process. The method also includes decoding, when the reference index value comprises more bins than the at least one bin coded with the context coded mode, at least another bin of the reference index value with a bypass coding mode of the CABAC process, and binarizing the reference index value.

Abstract translation: 在一个示例中，本公开的方面涉及用于对视频解码过程中的参考索引语法元素进行解码的方法，该方法包括使用上下文自适应二进制算术编码的上下文编码模式对参考索引值的至少一个bin进行解码（ CABAC）过程。 该方法还包括解码，当参考索引值包括比用上下文编码模式编码的至少一个分组的更多的分组时，至少具有CABAC处理的旁路编码模式的参考索引值的另一个bin，并且对参考进行二值化 指数值

公开(公告)号：US20160037164A1

公开(公告)日：2016-02-04

申请号：US14816980

申请日：2015-08-03

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/136 ,  H04N19/70 ,  H04N19/182 ,  H04N19/176 ,  H04N19/44

Abstract: In an example, a method of processing video data may include inferring a pixel scan order for a first palette mode encoded block of video data without receiving a block-level syntax element having a value representative of the pixel scan order for the first palette mode encoded block. The method may include decoding the first palette mode encoded block of video data using the inferred pixel scan order. The method may include receiving a block-level syntax element having a value representative of a pixel scan order for a second palette mode encoded block of video data. The method may include determining the pixel scan order for the second palette mode encoded block of video data based on the received block-level syntax element. The method may include decoding the second palette mode encoded block of video data using the determined pixel scan order.

Abstract translation: 在一个示例中，处理视频数据的方法可以包括推断用于第一调色板模式编码的视频数据块的像素扫描顺序，而不接收具有表示第一调色板模式编码的像素扫描顺序的值的块级语法元素 块。 该方法可以包括使用推测的像素扫描顺序来解码第一调色板模式编码的视频数据块。 该方法可以包括接收具有代表视频数据的第二调色板模式编码块的像素扫描顺序的值的块级语法元素。 该方法可以包括基于接收的块级语法元素确定第二调色板模式编码的视频数据块的像素扫描顺序。 该方法可以包括使用确定的像素扫描顺序来解码第二调色板模式编码的视频数据块。

公开(公告)号：US09247258B2

公开(公告)日：2016-01-26

申请号：US13660635

申请日：2012-10-25

Applicant: Qualcomm Incorporated

Inventor： Muhammed Zeyd Coban ,  Ye-Kui Wang ,  Marta Karczewicz

IPC: H04N19/174 ,  H04N19/105 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61 ,  H04N19/11

CPC classification number: H04N19/174 ,  H04N19/105 ,  H04N19/11 ,  H04N19/159 ,  H04N19/172 ,  H04N19/436 ,  H04N19/46 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70

Abstract: A video coder can control in-picture prediction across slice boundaries within a picture. In one example, a first syntax element can control if in-picture prediction across slice boundaries for slices of a picture. If in-picture prediction across slice boundaries is enabled for the picture, then a second syntax element can control, for an individual slices, if in-picture prediction across slice boundaries is enabled for the slice.

Abstract translation: 视频编码器可以控制图像内的切片边界的图像内预测。 在一个示例中，第一语法元素可以控制图片切片的切片边界中的图像内预测。 如果片段边界上的图像间预测被启用用于图像，则第二语法元素可以针对各个切片来控制切片边界上的图像间预测是否对切片启用。

公开(公告)号：US09237358B2

公开(公告)日：2016-01-12

申请号：US13645296

申请日：2012-10-04

Applicant: Qualcomm Incorporated

Inventor： Wei-Jung Chien ,  Joel Sole Rojals ,  Marta Karczewicz

IPC: H04N19/103 ,  H04N19/136 ,  H04N19/174 ,  H04N19/60 ,  H03M7/40 ,  H04N19/13 ,  H04N19/91 ,  H04N19/50 ,  H04N19/176

CPC classification number: H04N19/60 ,  H03M7/4018 ,  H04N19/103 ,  H04N19/13 ,  H04N19/136 ,  H04N19/174 ,  H04N19/176 ,  H04N19/50 ,  H04N19/91

Abstract: A reduction in the number of binarizations and/or contexts used in context adaptive binary arithmetic coding (CABAC) for video coding is proposed. In particular, this disclosure proposes techniques that may lower the number contexts used in CABAC by up to 56.