公开(公告)号：WO2017053280A1

公开(公告)日：2017-03-30

申请号：PCT/US2016/052640

申请日：2016-09-20

Applicant: QUALCOMM INCORPORATED

Inventor： RAMASUBRAMONIAN, Adarsh Krishnan ,  RUSANOVSKYY, Dmytro ,  SOLE ROJALS, Joel ,  LEE, Sungwon ,  BUGDAYCI SANSLI, Done ,  KARCZEWICZ, Marta

IPC: H04N19/36 ,  H04N19/46 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/117 ,  H04N19/154 ,  H04N19/174 ,  H04N19/186

CPC classification number: H04N19/463 ,  H04N19/117 ,  H04N19/124 ,  H04N19/154 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/36 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/66 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85

Abstract: This disclosure relates to processing video data, including processing video data that is represented by an HDR/WCG color representation. In accordance with one or more aspects of the present disclosure, one or more Supplemental Enhancement Information (SEI) Messages may be used to signal syntax elements and or other information that allow a video decoder or video postprocessing device to reverse the dynamic range adjustment (DRA) techniques of this disclosure to reconstruct the original or native color representation of the video data. Dynamic range adjustment (DRA) parameters may be applied to video data in accordance with one or more aspects of this disclosure in order to make better use of an HDR/WCG color representation, and may include the use of global offset values, as well as local scale and offset values for partitions of color component values.

Abstract translation: 本公开涉及处理视频数据，包括处理由HDR / WCG颜色表示表示的视频数据。 根据本公开的一个或多个方面，可以使用一个或多个补充增强信息（SEI）消息来通知允许视频解码器或视频后处理设备反转动态范围调整（DRA）的语法元素和/或其他信息 ）技术来重构视频数据的原始或原始颜色表示。 动态范围调整（DRA）参数可以根据本公开的一个或多个方面应用于视频数据，以便更好地利用HDR / WCG颜色表示，并且可以包括使用全局偏移值，以及 颜色分量值分区的局部比例和偏移值。

公开(公告)号：WO2017053585A1

公开(公告)日：2017-03-30

申请号：PCT/US2016/053143

申请日：2016-09-22

Applicant: QUALCOMM INCORPORATED

Inventor： SOLE ROJALS, Joel ,  RAMASUBRAMONIAN, Adarsh Krishnan ,  RUSANOVSKYY, Dmytro ,  LEE, Sungwon ,  WANG, Ye-Kui

IPC: H04N19/70 ,  H04N19/30 ,  H04N19/186 ,  G06T5/00 ,  H04N19/46 ,  H04N19/85

CPC classification number: H04N19/124 ,  G06F3/1407 ,  G06T5/007 ,  G09G3/003 ,  G09G5/04 ,  G09G5/06 ,  G09G2320/0276 ,  G09G2340/06 ,  G09G2370/00 ,  H04N19/18 ,  H04N19/186 ,  H04N19/30 ,  H04N19/44 ,  H04N19/46 ,  H04N19/70 ,  H04N19/85 ,  H04N19/98

Abstract: In one example, a device for processing decoded video data a video decoder implemented by one or more hardware-based processing units comprising digital logic circuitry, and a postprocessing unit implemented by one or more hardware-based processing units comprising digital logic circuitry. The video decoder is configured to decode video data of a video bitsream according to a video coding standard, extract HDR postprocessing data from an SEI message of the video bitstream, and provide the decoded video data and the HDR postprocessing data to the postprocessing unit. The postprocessing unit is configured to process the decoded video data using the HDR postprocessing data according to the video coding standard. The device may additionally determine whether the video decoder is compliant with the video coding standard by comparing the processed video data with reference processed video data.

Abstract translation: 在一个示例中，用于处理解码的视频数据的设备由包括数字逻辑电路的一个或多个基于硬件的处理单元实现的视频解码器，以及由包括数字逻辑电路的一个或多个基于硬件的处理单元实现的后处理单元。 视频解码器被配置为根据视频编码标准对视频比特流的视频数据进行解码，从视频比特流的SEI消息中提取HDR后处理数据，并将解码的视频数据和HDR后处理数据提供给后处理单元。 后处理单元被配置为根据视频编码标准使用HDR后处理数据处理解码的视频数据。 该装置还可以通过将处理的视频数据与参考处理的视频数据进行比较来确定视频解码器是否符合视频编码标准。

公开(公告)号：WO2016123091A1

公开(公告)日：2016-08-04

申请号：PCT/US2016/014898

申请日：2016-01-26

Applicant: QUALCOMM INCORPORATED

Inventor： ZHAO, Xin ,  LEE, Sungwon ,  CHEN, Jianle ,  ZHANG, Li ,  LI, Xiang ,  CHEN, Ying ,  KARCZEWICZ, Marta ,  LIU, Hongbin

IPC: H04N19/60 ,  H04N19/12 ,  H04N19/157 ,  H04N19/167 ,  H04N19/136 ,  H04N19/176 ,  H04N19/70 ,  H04N19/159

CPC classification number: H04N19/159 ,  H04N19/12 ,  H04N19/136 ,  H04N19/167 ,  H04N19/176 ,  H04N19/60 ,  H04N19/70

Abstract: Example techniques are described to determine transforms to be used during video encoding and video decoding. A video encoder and a video decoder may select transform subsets that each identify one or more candidate transforms. The video encoder and the video decoder may determine transforms from the selected transform subsets.

Abstract translation: 描述示例技术来确定在视频编码和视频解码期间使用的变换。 视频编码器和视频解码器可以选择每个识别一个或多个候选变换的变换子集。 视频编码器和视频解码器可以确定来自所选择的变换子集的变换。

公开(公告)号：WO2017053277A1

公开(公告)日：2017-03-30

申请号：PCT/US2016/052633

申请日：2016-09-20

Applicant: QUALCOMM INCORPORATED

Inventor： RAMASUBRAMONIAN, Adarsh Krishnan ,  RUSANOVSKYY, Dmytro ,  SOLE ROJALS, Joel ,  LEE, Sungwon ,  BUGDAYCI SANSLI, Done ,  KARCZEWICZ, Marta

IPC: H04N19/46 ,  H04N19/36 ,  H04N19/80 ,  H04N19/85

CPC classification number: H04N19/44 ,  H04N19/117 ,  H04N19/132 ,  H04N19/154 ,  H04N19/184 ,  H04N19/187 ,  H04N19/36 ,  H04N19/46 ,  H04N19/80 ,  H04N19/85

Abstract: Processing high dynamic range and or wide color gamut video data using a fixed-point implementation. A method of processing video data may include receiving one or more supplemental enhancement information (SEI) messages that contain information specifying how to determine parameters for performing an inverse dynamic range adjustment process, receiving decoded video data, and performing the inverse dynamic range adjustment process on the decoded video data using fixed-point computing in accordance with the information in the one or more SEI messages.

Abstract translation: 使用定点实现处理高动态范围和或宽色域视频数据。 一种处理视频数据的方法可以包括接收一个或多个补充增强信息（SEI）消息，其包含指定如何确定用于执行逆动态范围调整处理的参数的信息，接收解码的视频数据，以及执行逆动态范围调整处理 根据一个或多个SEI消息中的信息使用定点计算的解码视频数据。

公开(公告)号：WO2016200940A1

公开(公告)日：2016-12-15

申请号：PCT/US2016/036448

申请日：2016-06-08

Applicant: QUALCOMM INCORPORATED

Inventor： RAMASUBRAMONIAN, Adarsh Krishnan ,  LI, Xiang ,  SOLE ROJALS, Joel ,  KARCZEWICZ, Marta ,  LEE, Sungwon ,  RUSANOVSKYY, Dmytro ,  BUGDAYCI SANSLI, Done

IPC: H04N19/30 ,  H04N19/186 ,  H04N19/36 ,  H04N19/103 ,  H04N19/50 ,  H04N19/176

CPC classification number: H04N19/86 ,  H04N19/103 ,  H04N19/105 ,  H04N19/119 ,  H04N19/13 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/187 ,  H04N19/30 ,  H04N19/36 ,  H04N19/50 ,  H04N19/587 ,  H04N19/615 ,  H04N19/96

Abstract: Techniques are described for identifying and reducing the incidence of artifacts in video using color gamut scalability (CGS) parameters and tables in scalable video coding (SVC). Derivation of CGS mapping tables are performed for each partition of pixel values in a color space. The pixel value domain is split into partitions and each is optimized independently. Color prediction techniques for CGS may be used by video encoders and/or video decoders to generate inter-layer reference pictures when a color gamut for a lower layer of video data is different than a color gamut for a higher layer of the video data. When mapped values are used as inter-layer predication references for the enhancement layer blocks, artifacts may appear in some frames of the sequences. A video encoder may identify blocks that potentially contain these artifacts and disable inter-layer prediction in those identified blocks.

Abstract translation: 描述了使用可缩放视频编码（SVC）中的色域可伸缩性（CGS）参数和表来识别和减少视频中伪像的发生率的技术。 对颜色空间中的像素值的每个分区执行CGS映射表的推导。 像素值域被分割成分区，并且各自被独立地优化。 当用于较低层视频数据的色域不同于用于较高层视频数据的色域时，CGS的颜色预测技术可被视频编码器和/或视频解码器用于生成层间参考图像。 当映射值用作增强层块的层间预测引用时，伪像可能出现在序列的某些帧中。 视频编码器可以标识潜在地包含这些伪像并且在那些识别的块中禁用层间预测的块。

公开(公告)号：WO2016168652A1

公开(公告)日：2016-10-20

申请号：PCT/US2016/027831

申请日：2016-04-15

Applicant: QUALCOMM INCORPORATED

Inventor： RUSANOVSKYY, Dmytro ,  BUGDAYCI SANSLI, Done ,  SOLE ROJALS, Joel ,  KARCZEWICZ, Marta ,  LEE, Sungwon ,  RAMASUBRAMONIAN, Adarsh Krishnan

IPC: H04N19/186 ,  H04N19/184 ,  H04N19/176 ,  H04N19/159 ,  H04N19/61 ,  H04N19/124 ,  H04N19/85

CPC classification number: H04N19/136 ,  G06T5/007 ,  G06T7/90 ,  G06T2207/20208 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/61 ,  H04N19/70 ,  H04N19/85

Abstract: This disclosure relates to processing video data, including processing video data to conform to a high dynamic range/wide color gamut (HDR/WCG) color container. As will be explained in more detail below, the techniques of the disclosure including dynamic range adjustment (DRA) parameters and apply the DRA parameters to video data in order to make better use of an HDR/WCG color container. The techniques of this disclosure may also include signaling syntax elements that allow a video decoder or video post processing device to reverse the DRA techniques of this disclosure to reconstruct the original or native color container of the video data.

Abstract translation: 本公开涉及处理视频数据，包括处理视频数据以符合高动态范围/宽色域（HDR / WCG）颜色容器。 如下面将更详细地解释的，本公开的技术包括动态范围调整（DRA）参数并将DRA参数应用于视频数据，以便更好地利用HDR / WCG颜色容器。 本公开的技术还可以包括允许视频解码器或视频后处理设备反转本公开的DRA技术以重建视频数据的原始或本机颜色容器的信令语法元素。

公开(公告)号：WO2016073203A1

公开(公告)日：2016-05-12

申请号：PCT/US2015/056727

申请日：2015-10-21

Applicant: QUALCOMM INCORPORATED

Inventor： CHONG, In Suk ,  LEE, Sungwon ,  HSIEH, Cheng-Teh ,  WANG, Xianglin

IPC: H04N19/176 ,  H04N19/103 ,  H04N19/137

CPC classification number: H04N19/176 ,  H04N19/103 ,  H04N19/105 ,  H04N19/122 ,  H04N19/137 ,  H04N19/139

Abstract: Provided are techniques for low complexity video coding. For example, a video coder may be configured to calculate a first sum of absolute difference (SAD) value between a coding unit (CU) block and a first corresponding block in a reference frame, and define branching conditions for branching of CU sizes based on the first SAD value, the branching conditions including a background condition and/or a homogeneous condition. The video coder may be configured to detect the background condition if the first SAD value of the CU block is less than a first threshold background value, and detect the homogeneous condition if a second SAD value of a sub-block of the CU block is between upper and lower homogeneous threshold values based on the first SAD value. The branching of the CU sizes may be based on detecting the background or homogeneous conditions.

Abstract translation: 提供了用于低复杂度视频编码的技术。 例如，视频编码器可以被配置为计算参考帧中的编码单元（CU）块和第一对应块之间的绝对差（SAD）值的第一和，并且基于 第一SAD值，分支条件包括背景条件和/或均匀条件。 如果CU块的第一SAD值小于第一阈值背景值，则视频编码器可以被配置为检测背景条件，并且如果CU块的子块的第二SAD值在 基于第一SAD值的上和下均匀阈值。 CU尺寸的分支可以基于检测背景或均匀条件。

公开(公告)号：WO2019067555A1

公开(公告)日：2019-04-04

申请号：PCT/US2018/052876

申请日：2018-09-26

Applicant: QUALCOMM INCORPORATED

Inventor： LEE, Sungwon ,  CHIEN, Wei-Jung ,  RAMASUBRAMONIAN, Adarsh Krishnan ,  COBAN, Muhammed Zeyd ,  CHEN, Jianle ,  CHEN, Yi-Wen ,  KARCZEWICZ, Marta

IPC: H04N19/31 ,  H04N19/70 ,  H04N19/107 ,  H04N19/114 ,  H04N19/187

Abstract: A device for encoding video data includes a memory configured to store video data, and a video encoder implemented in circuitry and configured to encode a future picture of the video data having a first display order position, the future picture being included in an intra period (IP) of the video data, the IP comprising a plurality of groups of pictures (GOPs), and after encoding the future picture, encode a picture of an ordinal first GOP of the plurality of GOPs using the future picture as a reference picture, each picture of the ordinal first GOP having display order positions earlier than the first display order position. Encoding the future picture in this manner may result in encoding performance improvements with minimal increases in encoding and decoding complexity.

公开(公告)号：WO2018231700A1

公开(公告)日：2018-12-20

申请号：PCT/US2018/036883

申请日：2018-06-11

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Yi-Wen ,  CHIEN, Wei-Jung ,  SUN, Yu-Chen ,  ZHANG, Li ,  LEE, Sungwon ,  LI, Xiang ,  CHUANG, Hsiao-Chiang ,  CHEN, Jianle ,  SEREGIN, Vadim ,  KARCZEWICZ, Marta

IPC: H04N19/52

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：WO2017197126A1

公开(公告)日：2017-11-16

申请号：PCT/US2017/032177

申请日：2017-05-11

Applicant: QUALCOMM INCORPORATED

Inventor： LEE, Sungwon ,  CHIEN, Wei-Jung ,  ZHANG, Li ,  KARCZEWICZ, Marta

IPC: H04N19/52 ,  H04N19/51

Abstract: A method of decoding video data includes constructing a motion vector candidate list of merge candidates for the current block of video data based on motion information from a number of neighboring blocks relative to the current block, wherein the number of neighboring blocks considered for the motion vector candidate list is based on the size of the current block, and wherein the number of neighboring blocks is greater than 5. In some examples, the method includes deriving a histogram of motion vector information for the neighboring blocks, and constructing the motion vector candidate list based on the derived histogram.

Abstract translation: 一种解码视频数据的方法包括：基于来自相对于当前块的多个相邻块的运动信息来构建当前视频数据块的合并候选者的运动向量候选列表，其中， 为运动矢量候选列表考虑的相邻块的块大小基于当前块的大小，并且其中相邻块的数量大于5.在一些示例中，该方法包括导出用于相邻块的运动矢量信息的直方图 ，并根据导出的直方图构建运动矢量候选列表。