公开(公告)号：US20170085878A1

公开(公告)日：2017-03-23

申请号：US15272172

申请日：2016-09-21

Applicant: QUALCOMM Incorporated

Inventor： Joel Sole Rojals ,  Adarsh Krishnan Ramasubramonian ,  Dmytro Rusanovskyy ,  Sungwon Lee ,  Ye-Kui Wang

IPC: H04N19/124 ,  H04N19/186 ,  H04N19/18 ,  H04N19/98 ,  H04N19/44

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.

公开(公告)号：US20170070735A1

公开(公告)日：2017-03-09

申请号：US15260148

申请日：2016-09-08

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Dmytro Rusanovskyy ,  Sungwon Lee ,  Joel Sole Rojals ,  Done Bugdayci Sansli ,  Marta Karczewicz

IPC: H04N19/124

CPC classification number: H04N19/124 ,  H04N19/186 ,  H04N19/70

Abstract: In an example, a method of processing video may include receiving a bitstream including encoded video data and a colour remapping information (CRI) supplemental enhancement information (SEI) message. The CRI SEI message may include information corresponding to one or more colour remapping processes. The method may include decoding the encoded video data to generate decoded video data. The method may include applying a process that does not correspond to the CRI SEI message to the decoded video data before applying at least one of the one or more colour remapping processes to the decoded video data to produce processed decoded video data.

Abstract translation: 在一个示例中，处理视频的方法可以包括接收包括编码视频数据和颜色重映射信息（CRI）补充增强信息（SEI）消息的比特流。 CRI SEI消息可以包括对应于一个或多个颜色重映射处理的信息。 该方法可以包括解码编码的视频数据以产生解码的视频数据。 该方法可以包括在将一个或多个颜色重映射处理中的至少一个应用于解码的视频数据之前，将与CRI SEI消息不对应的处理应用于解码的视频数据，以产生经处理的解码的视频数据。

公开(公告)号：US09591303B2

公开(公告)日：2017-03-07

申请号：US13784006

申请日：2013-03-04

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Ye-Kui Wang ,  Rajan Laxman Joshi ,  Ying Chen

IPC: H04N19/00 ,  H04N19/44 ,  H04N19/70 ,  H04N19/172 ,  H04N19/61 ,  H04N19/103 ,  H04N19/107 ,  H04N19/157

CPC classification number: H04N19/44 ,  H04N19/103 ,  H04N19/107 ,  H04N19/157 ,  H04N19/172 ,  H04N19/61 ,  H04N19/70

Abstract: A video coder can be configured to code a random access point (RAP) picture and code one or more decodable leading pictures (DLPs) for the RAP picture such that all pictures that are targeted for discard precede the DLPs associated with the RAP picture in display order.

Abstract translation: 视频编码器可以被配置为对随机接入点（RAP）图像进行编码，并为RAP图像编码一个或多个可解码的前导图像（DLP），使得在丢弃的目标的所有图像在与显示的RAP图像相关联的DLP之前 订购。

公开(公告)号：US09584825B2

公开(公告)日：2017-02-28

申请号：US13946730

申请日：2013-07-19

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Ye-Kui Wang

IPC: H04N19/58 ,  H04N19/70

CPC classification number: H04N19/58 ,  H04N19/70

Abstract: A video encoder signals, in a slice header for a current slice of a current picture, a first long-term reference picture (LTRP) entry, the first LTRP entry indicating that a particular reference picture is in a long-term reference picture set of the current picture. Furthermore, the video encoder signals, in the slice header, a second LTRP entry only if second LTRP entry does not indicate that the particular reference picture is in the long-term reference picture set of the current picture.

Abstract translation: 视频编码器在用于当前图像的当前片段的片标题中信号指示第一长期参考图片（LTRP）条目，所述第一LTRP条目指示特定参考图片在长期参考图片集 当前图片。 此外，视频编码器仅在第二LTRP条目未指示特定参考图像在当前图像的长​​期参考图像集中时，在片标题中信号第二LTRP条目。

公开(公告)号：US09532052B2

公开(公告)日：2016-12-27

申请号：US14245115

申请日：2014-04-04

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian

IPC: H04N19/70 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/68 ,  H04N19/597

CPC classification number: H04N19/70 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/68

Abstract: In one example, a video coder is configured to code a value for a syntax element indicating whether at least a portion of a picture order count (POC) value of a picture is to be reset to a value of zero, when the value for the syntax element indicates that the portion of the POC value is to be reset to the value of zero, reset at least the portion of the POC value such that the portion of the POC value is equal to zero, and code video data using the reset POC value. Coding video data using the reset POC value may include inter-predicting a block of a subsequent picture relative to the picture, where the block may include a motion parameter that identifies the picture using the reset POC value. The block may be coded using temporal inter-prediction or inter-layer prediction.

Abstract translation: 在一个示例中，视频编码器被配置为将用于表示图片的图片顺序计数（POC）值的至少一部分是否被重置为零的语法元素的值编码为零的值， 语法元素指示POC值的部分将被重置为零值，至少复位POC值的部分，使得POC值的部分等于零，并且使用复位POC来代码视频数据 值。 使用重置POC值编码视频数据可以包括相对于图像预测后续图像的块，其中块可以包括使用复位POC值来标识图像的运动参数。 可以使用时间帧间预测或层间预测对块进行编码。

公开(公告)号：US09532046B2

公开(公告)日：2016-12-27

申请号：US13862282

申请日：2013-04-12

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Ying Chen ,  Ye-Kui Wang

IPC: H04B1/66 ,  H04N19/50 ,  H04N19/463 ,  H04N19/70 ,  H04N19/58

CPC classification number: H04N19/50 ,  H04N19/463 ,  H04N19/58 ,  H04N19/70

Abstract: In one example, a device for decoding video data includes a video decoder configured to decode one or more syntax elements of a current reference picture set (RPS) prediction data structure, wherein at least one of the syntax elements represents a picture order count (POC) difference between a POC value associated with the current RPS and a POC value associated with a previously decoded RPS, form a current RPS based at least in part on the RPS prediction data structure and the previously decoded RPS, and decode one or more pictures using the current RPS. A video encoder may be configured to perform a substantially similar process during video encoding.

Abstract translation: 在一个示例中，用于解码视频数据的设备包括：视频解码器，被配置为对当前参考图像集（RPS）预测数据结构的一个或多个语法元素进行解码，其中至少一个语法元素表示图像顺序计数（POC ）与当前RPS相关联的POC值与与先前解码的RPS相关联的POC值之间的差异，至少部分地基于RPS预测数据结构和先前解码的RPS形成当前RPS，并且使用 目前的RPS。 视频编码器可以被配置为在视频编码期间执行基本相似的处理。

公开(公告)号：US09521393B2

公开(公告)日：2016-12-13

申请号：US14036873

申请日：2013-09-25

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Ying Chen ,  Adarsh Krishnan Ramasubramonian

IPC: H04N19/70 ,  H04N13/00 ,  H04N19/46 ,  H04N19/30

CPC classification number: H04N13/161 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

Abstract: A device obtains, from a bitstream that includes an encoded representation of the video data, a non-nested Supplemental Enhancement Information (SEI) message that is not nested within another SEI message in the bitstream. Furthermore, the device determines a layer of the bitstream to which the non-nested SEI message is applicable. The non-nested SEI message is applicable to layers for which video coding layer (VCL) network abstraction layer (NAL) units of the bitstream have layer identifiers equal to a layer identifier of a SEI NAL unit that encapsulates the non-nested SEI message. A temporal identifier of the SEI NAL unit is equal to a temporal identifier of an access unit containing the SEI NAL unit. Furthermore, the device processes, based in part on one or more syntax elements in the non-nested SEI message, video data of the layer of the bitstream to which the non-nested SEI message is applicable.

Abstract translation: 设备从包含视频数据的编码表示的比特流中获得未嵌套在比特流中另一SEI消息内的非嵌套补充增强信息（SEI）消息。 此外，设备确定非嵌套SEI消息可应用到的比特流层。 非嵌套SEI消息适用于层的视频编码层（VCL）网络抽象层（NAL）单元具有层标识符等于封装非嵌套SEI消息的SEI NAL单元的层标识符。 SEI NAL单元的时间标识符等于包含SEI NAL单元的访问单元的时间标识符。 此外，该设备部分地基于非嵌套SEI消息中的一个或多个语法元素处理非嵌套SEI消息可应用于的位流层的视频数据。

公开(公告)号：US20160360213A1

公开(公告)日：2016-12-08

申请号：US15176014

申请日：2016-06-07

Applicant: QUALCOMM Incorporated

Inventor： Sungwon Lee ,  Joel Sole Rojals ,  Adarsh Krishnan Ramasubramonian ,  Dmytro Rusanovskyy ,  Done Bugdayci Sansli ,  Marta Karczewicz

IPC: H04N19/186 ,  H04N19/132 ,  H04N19/124

CPC classification number: H04N19/186 ,  G06T5/00 ,  G06T5/009 ,  G06T2207/20208 ,  H04N1/60 ,  H04N19/124 ,  H04N19/132 ,  H04N19/85

Abstract: In general, techniques are described for processing high dynamic range (HDR) and wide color gamut (WCG) video data for video coding. A device comprising a memory and a processor may perform the techniques. The memory may store compacted fractional chromaticity coordinate (FCC) formatted video data. The processor may inverse compact the compacted FCC formatted video data using one or more inverse adaptive transfer functions (TFs) to obtain decompacted FCC formatted video data. The processor may next inverse adjust a chromaticity component of the decompacted FCC formatted video data based on a corresponding luminance component of the decompacted FCC formatted video data to obtain inverse adjusted FCC formatted video data. The processor may convert the chromaticity component of the inverse adjusted FCC formatted video data from the FCC format to a color representation format to obtain High Dyanmic Range (HDR) and Wide Color Gamut (WCG) video data.

Abstract translation: 通常，描述了用于处理用于视频编码的高动态范围（HDR）和宽色域（WCG）视频数据的技术。 包括存储器和处理器的装置可以执行这些技术。 存储器可以存储压缩的分数色度坐标（FCC）格式的视频数据。 处理器可以使用一个或多个逆自适应传递函数（TF）对压缩的FCC格式的视频数据进行逆压缩，以获得解压缩的FCC格式的视频数据。 接下来，处理器可以基于分解的FCC格式的视频数据的对应亮度分量来反转调整分解的FCC格式的视频数据的色度分量，以获得反向调整的FCC格式的视频数据。 处理器可以将FCC调整后的FCC格式的视频数据的色度分量从FCC格式转换为颜色表示格式，以获得高分辨率范围（HDR）和宽色域（WCG）视频数据。

公开(公告)号：US09402076B2

公开(公告)日：2016-07-26

申请号：US14089495

申请日：2013-11-25

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian ,  Ying Chen

IPC: H04N7/12 ,  H04N7/32 ,  H04N19/187 ,  H04N19/169 ,  H04N19/70 ,  H04N19/597 ,  H04N19/30 ,  H04N19/59 ,  H04N19/107 ,  H04N19/433

CPC classification number: H04N19/107 ,  H04N19/433 ,  H04N19/70

Abstract: A system and method for processing video data having a first random access point (RAP) picture. An access unit having a first random access point (RAP) picture is received in a video bitstream. A subsequent access unit having a RAP picture that does not initialize the hypothetical reference decoder (HRD) is also received and, based on one or more random access skipped leading (RASL) pictures for the subsequent access unit not being present in the video bitstream, a picture buffer removal time for a picture buffer is shifted earlier based on a picture buffer removal delay offset.

Abstract translation: 一种用于处理具有第一随机接入点（RAP）图像的视频数据的系统和方法。 在视频比特流中接收具有第一随机接入点（RAP）图像的接入单元。 还接收具有不初始化假设参考解码器（HRD）的RAP图像的后续访问单元，并且基于在视频比特流中不存在后续访问单元的一个或多个随机访问跳过的前导（RASL）图像， 基于图像缓冲器去除延迟偏移，图像缓冲器的图像缓冲器移除时间较早地移位。

公开(公告)号：US09398293B2

公开(公告)日：2016-07-19

申请号：US14148000

申请日：2014-01-06

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian

IPC: H04N11/02 ,  H04N19/44 ,  H04N19/70 ,  H04N19/107 ,  H04N19/31 ,  H04N19/46

CPC classification number: H04N19/44 ,  H04N19/107 ,  H04N19/31 ,  H04N19/46 ,  H04N19/70

Abstract: An example method of decoding video data includes receiving, in a message associated with a picture, information indicating a refreshed region of the picture, determining whether the picture comprises a last picture in a gradual decoder refresh (GDR) set, determining whether the picture comprises a recovery point picture, and responsive to determining that the picture comprises the last picture in the GDR set and the recovery point picture, determining that the message indicates that the entire picture belongs to the refreshed region of the picture.

Abstract translation: 解码视频数据的示例性方法包括在与图像相关联的消息中接收指示图像的刷新区域的信息，确定图像是否包括逐渐解码器刷新（GDR）集合中的最后一个图像，确定图像是否包括 恢复点图像，并且响应于确定图像包括GDR集合和恢复点图像中的最后一个图像，确定该消息指示整个图像属于图像的刷新区域。