公开(公告)号：US09848199B2

公开(公告)日：2017-12-19

申请号：US14656447

申请日：2015-03-12

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Fnu Hendry ,  Ye-Kui Wang

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/31 ,  H04N19/184 ,  H04N19/187 ,  H04N19/136 ,  H04N19/70 ,  H04N19/30

CPC classification number: H04N19/31 ,  H04N19/136 ,  H04N19/184 ,  H04N19/187 ,  H04N19/30 ,  H04N19/70

Abstract: An apparatus configured to code video information in a bitstream includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a video layer having a current picture. The processor is configured to: determine whether a slice segment header extension associated with the current picture is present in the bitstream; and determine that one or more most significant bits (MSBs) of a picture order count (POC) value associated with the current picture are not present in the bitstream in response to a determination that the slice segment header extension associated with the current picture is not present in the bitstream. The processor may encode or decode the video information in the bitstream.

公开(公告)号：US09819941B2

公开(公告)日：2017-11-14

申请号：US14509797

申请日：2014-10-08

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Ye-Kui Wang

IPC: H04N19/423 ,  H04N19/70 ,  H04N19/156 ,  H04N19/597 ,  H04N19/196 ,  H04N19/463 ,  H04N19/177 ,  H04N19/44 ,  H04N19/31

CPC classification number: H04N19/156 ,  H04N19/177 ,  H04N19/196 ,  H04N19/31 ,  H04N19/423 ,  H04N19/44 ,  H04N19/463 ,  H04N19/597 ,  H04N19/70

Abstract: A method of decoding video data including receiving an encoded video bitstream that includes a plurality of pictures and storing the plurality of pictures in one or more sub-DPBs. The method further including receiving a respective set of sub-DPB parameters for each respective operation point of the encoded video bitstream. applying the respective set of sub-DPB parameters to all layers of an output layer set for each respective operation point, and performing a sub-DPB management process on the one or more sub-DPBs in accordance with the received respective single sets of sub-DPB parameters.

公开(公告)号：US09807419B2

公开(公告)日：2017-10-31

申请号：US14749577

申请日：2015-06-24

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Adarsh Krishnan Ramasubramonian ,  Ye-Kui Wang

IPC: H04N19/70 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/593 ,  H04N19/184 ,  H04N19/187 ,  H04N19/573

CPC classification number: H04N19/593 ,  H04N19/184 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/573 ,  H04N19/597 ,  H04N19/70

Abstract: A device for video encoding multi-layer video data includes a memory configured to store at least a portion of a multi-layer bitstream of video data and one or more processors configured to: encode a first access unit comprising at least a layer and a reference layer of the layer; determine if the first access unit is a recovery point; in response to the first access unit being a recovery point, include in the first access unit, a recovery point SEI message that applies to at least the layer and the reference layer; and generate the first access unit with the SEI message.

公开(公告)号：US09716900B2

公开(公告)日：2017-07-25

申请号：US14742573

申请日：2015-06-17

Applicant: QUALCOMM Incorporated

Inventor： Adarsh Krishnan Ramasubramonian ,  Fnu Hendry ,  Ye-Kui Wang

IPC: H04N7/12 ,  H04N19/70 ,  H04N19/34 ,  H04N19/46 ,  H04N19/30

CPC classification number: H04N19/70 ,  H04N19/30 ,  H04N19/34 ,  H04N19/46

Abstract: In an example, a method for video coding includes processing a Supplemental Enhancement Information (SEI) Network Abstraction Layer (NAL) unit that comprises one or more SEI message structures in a raw byte sequence payload (RBSP), such that one or more SEI message structure includes at least one nesting SEI message structure having one or more SEI messages. In various embodiments, the SEI NAL unit is processed, and a syntax element, indicative of a number of SEI messages comprised within the at least one nesting message structure, is coded.

公开(公告)号：US09648321B2

公开(公告)日：2017-05-09

申请号：US13689559

申请日：2012-11-29

Applicant: Qualcomm Incorporated

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

IPC: H04N19/00 ,  H04N19/50 ,  H04N19/503 ,  H04N19/70

CPC classification number: H04N19/50 ,  H04N19/172 ,  H04N19/503 ,  H04N19/58 ,  H04N19/70

Abstract: In general, techniques are described for coding picture order count values identifying long-term reference pictures. A video decoding device comprising a processor may perform the techniques. The processor may determine least significant bits (LSBs) of a picture order count (POC) value that identifies a long-term reference picture (LTRP). The LSBs do not uniquely identify the POC value with respect to the LSBs of any other POC value identifying any other picture in a decoded picture buffer (DPB). The processor may determine most significant bits (MSBs) of the POC value. The MSBs combined with the LSBs is sufficient to distinguish the POC value from any other POC value that identifies any other picture in the DPB. The processor may retrieve the LTRP from the decoded picture buffer based on the LSBs and MSBs of the POC value, and decode a current picture of the video data using the retrieved LTRP.

公开(公告)号：US09628820B2

公开(公告)日：2017-04-18

申请号：US14543470

申请日：2014-11-17

Applicant: QUALCOMM Incorporated

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

IPC: H04N11/08 ,  H04N19/70 ,  H04N19/30 ,  H04N19/68

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

Abstract: A device for coding video data includes a memory comprising a decoded picture buffer (DPB) configured to store video data, and a video coder configured to code data representative of a value for a picture order count (POC) resetting period identifier, wherein the data is included in a slice segment header for a slice associated with a coded picture of a layer of video data, and wherein the value of the POC resetting period identifier indicates a POC resetting period including the coded picture, and reset at least part of a POC value for the coded picture in the POC resetting period in the layer and POC values for one or more pictures in the layer that are currently stored in the DPB.

公开(公告)号：US09565437B2

公开(公告)日：2017-02-07

申请号：US14247079

申请日：2014-04-07

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/91 ,  H04N19/597 ,  H04N19/70 ,  H04N19/46 ,  H04N19/513 ,  H04N19/30 ,  H04N19/44 ,  H04N19/29

CPC classification number: H04N19/91 ,  H04N19/29 ,  H04N19/30 ,  H04N19/44 ,  H04N19/46 ,  H04N19/513 ,  H04N19/597 ,  H04N19/70

Abstract: Systems, methods, and devices for coding multilayer video data are disclosed that may include encoding, decoding, transmitting, or receiving multilayer video data. The systems, methods, and devices may transmit or receive a video parameter set (VPS) including information for a series of layers, each layer including visual signal information. The systems, methods, and devices may code (encode or decode) video data based on the visual signal information signaled per layer in the VPS.

Abstract translation: 公开了用于编码多层视频数据的系统，方法和设备，其可以包括编码，解码，发送或接收多层视频数据。 系统，方法和设备可以发送或接收包括一系列层的信息的视频参数集（VPS），每个层包括视觉信号信息。 系统，方法和设备可以基于VPS中每层信令的视觉信号信息对视频数据进行编码（编码或解码）。

公开(公告)号：US09432665B2

公开(公告)日：2016-08-30

申请号：US13689547

申请日：2012-11-29

Applicant: Qualcomm Incorporated

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

IPC: H04N19/50 ,  H04N19/503 ,  H04N19/70 ,  H04N19/172

CPC classification number: H04N19/50 ,  H04N19/172 ,  H04N19/503 ,  H04N19/58 ,  H04N19/70

Abstract: In general, techniques are described for coding picture order count values identifying long-term reference pictures. A video decoding device comprising a processor may perform the techniques. The processor may be configured to determine a number of bits used to represent least significant bits of the picture order count value that identifies a long-term reference picture to be used when decoding at least a portion of a current picture and parse the determined number of bits from a bitstream representative of the encoded video data. The parsed bits represent the least significant bits of the picture order count value. The processor retrieves the long-term reference picture from a decoded picture buffer based on the least significant bits, and decodes at least the portion of the current picture using the retrieved long-term reference picture.

Abstract translation: 通常，描述了用于编码识别长期参考图片的图像顺序计数值的技术。 包括处理器的视频解码设备可以执行这些技术。 处理器可以被配置为确定用于表示图像顺序计数值的最低有效位的位数，其识别当对当前图像的至少一部分进行解码时解析所确定的数量的待使用的长期参考图像 来自表示编码视频数据的比特流的比特。 解析的位表示图像顺序计数值的最低有效位。 处理器基于最低有效位从解码图像缓冲器中检索长期参考图像，并且使用检索到的长期参考图片解码至少当前图像的部分。

公开(公告)号：US09332255B2

公开(公告)日：2016-05-03

申请号：US13924016

申请日：2013-06-21

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/00 ,  H04N19/196 ,  H04N19/44 ,  H04N19/58 ,  H04N19/70 ,  H04N19/463 ,  H04N19/573

CPC classification number: H04N19/44 ,  H04N19/196 ,  H04N19/463 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

Abstract: A video decoder may be configured to decode a first value representative of a difference between a base most significant bits (MSBs) value of a picture order count (POC) value of a current picture of video data and a first MSBs value of a first POC value of a first long-term reference picture of the video data, decode a second value representative of a difference between a second MSBs value of a second POC value of a second long-term reference picture of the video data and the first MSBs value, wherein the first POC value and the second POC value have different least significant bits values, and decode at least a portion of a current picture of the video data relative to at least one of the first long-term reference picture and the second long-term reference picture.

Abstract translation: 视频解码器可以被配置为对表示视频数据的当前图像的图像顺序计数（POC）值的最基本最高有效位（POC）值与第一POC的第一MSB值之间的差的第一值进行解码 视频数据的第一长期参考图像的值，对表示视频数据的第二长期参考图片的第二POC值的第二MSB值与第一MSB值之间的差的第二值进行解码， 其中所述第一POC值和所述第二POC值具有不同的最低有效位值，并且相对于所述第一长期参考图片和所述第二长期参考图片中的至少一个来解码所述视频数据的当前图片的至少一部分 参考图片。

公开(公告)号：US20160112724A1

公开(公告)日：2016-04-21

申请号：US14883256

申请日：2015-10-14

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Ye-Kui Wang ,  Adarsh Krishnan Ramasubramonian

IPC: H04N19/70 ,  H04L29/06 ,  H04N19/44

CPC classification number: H04N19/70 ,  H04L65/4069 ,  H04N19/30 ,  H04N19/423 ,  H04N19/44 ,  H04N21/234327 ,  H04N21/2401

Abstract: A video processing device obtains a data stream comprising a plurality of elementary streams and a High Efficiency Video Coding (HEVC) timing and Hypothetical Reference Decoder (HRD) descriptor. The HEVC timing and HRD descriptor comprises a target schedule index syntax element indicating an index of a delivery schedule. The video processing device may identify, based on a set of parameters, a syntax element in an array of syntax elements in a video parameter set (VPS). The set of parameters may comprise a parameter having a value equal to a value of the target schedule index syntax element. The video processing device may identify, based on an index specified by the identified syntax element, a particular HRD parameters syntax structure in a plurality of HRD parameters syntax structures as being applicable to a particular elementary stream.

Abstract translation: 视频处理装置获得包括多个基本流的数据流和高效率视频编码（HEVC）定时和假设参考解码器（HRD）描述符。 HEVC定时和HRD描述符包括指示传送调度的索引的目标调度索引语法元素。 视频处理设备可以基于一组参数来识别视频参数集（VPS）中的语法元素阵列中的语法元素。 该组参数可以包括具有等于目标调度索引语法元素的值的值的参数。 视频处理设备可以基于由所识别的语法元素指定的索引来识别可应用于特定基本流的多个HRD参数语法结构中的特定HRD参数语法结构。