公开(公告)号：US09686542B2

公开(公告)日：2017-06-20

申请号：US14019322

申请日：2013-09-05

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/169 ,  H04N21/236 ,  H04N21/845 ,  H04N21/434

CPC classification number: H04N19/188 ,  H04N21/23605 ,  H04N21/4343 ,  H04N21/8451

Abstract: A video processing device can receive in an encoded bitstream of video data a network abstraction layer (NAL) unit and parse a first syntax element in a header of the NAL unit to determine a temporal identification (ID) for the NAL unit, wherein a value of the first syntax element is one greater than the temporal identification.

公开(公告)号：US20170171550A1

公开(公告)日：2017-06-15

申请号：US15425738

申请日：2017-02-06

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Ye-Kui Wang ,  Jianle Chen ,  Marta Karczewicz

IPC: H04N19/187 ,  H04N19/70 ,  H04N19/30 ,  H04N19/172 ,  H04N19/169

CPC classification number: H04N19/187 ,  H04N19/13 ,  H04N19/172 ,  H04N19/188 ,  H04N19/30 ,  H04N19/44 ,  H04N19/70

Abstract: In one example, the disclosure is directed to techniques that include receiving a bitstream comprising at least a syntax element, a first network abstraction layer unit type, and a coded access unit comprising a plurality of pictures. The techniques further include determining a value of the syntax element which indicates whether the access unit was coded using cross-layer alignment. The techniques further include determining the first network abstraction layer unit type for a picture in the access unit and determining whether the first network abstraction layer unit type equals a value in a range of type values. The techniques further include setting a network abstraction layer unit type for all other pictures in the coded access unit to equal the value of the first network abstraction layer unit type if the first network abstraction layer unit type is equal to a value in the range of type values.

公开(公告)号：US09681145B2

公开(公告)日：2017-06-13

申请号：US14513089

申请日：2014-10-13

Applicant: QUALCOMM Incorporated

Inventor： Krishnakanth Rapaka ,  Ye-Kui Wang ,  Jianle Chen ,  Fnu Hendry

IPC: H04N19/44 ,  H04N19/597 ,  H04N19/70 ,  H04N19/30

CPC classification number: H04N19/44 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70

Abstract: Systems and methods for inter-layer reference picture set derivation based on sub-layer reference prediction dependency are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory configured to store one or more direct reference layer pictures of one or more current pictures in a sequence, wherein the one or more current pictures are associated with a current layer, the current layer being associated with the one or more direct reference layers. The video encoder further comprises a processor in communication with the memory unit. The memory unit is configured to set an indication associated with a current picture to indicate whether all of the one or more direct reference layer pictures of the current picture that are not restricted for use in inter-layer prediction are included in an inter-layer reference picture set associated with the current picture.

公开(公告)号：US09667959B2

公开(公告)日：2017-05-30

申请号：US14228102

申请日：2014-03-27

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04N19/169 ,  H04L29/06 ,  H04N21/6437 ,  H04N21/647 ,  H04N19/70 ,  H04N19/88 ,  H04N21/44

CPC classification number: H04N19/188 ,  H04L65/604 ,  H04L65/607 ,  H04L65/608 ,  H04L69/22 ,  H04N19/70 ,  H04N19/88 ,  H04N21/44004 ,  H04N21/6437 ,  H04N21/64784

Abstract: A device for processing video data includes a memory; a receiver configured to real-time transport protocol (RTP) packets; and one or more processors configured to receive a first fragmentation unit comprising a subset of a fragmented network abstraction layer (NAL) unit; parse a start bit of the fragmentation unit to determine if the first fragmentation unit comprises a start of the fragmented NAL unit; in response to the first fragmentation unit comprising the start of the fragmented NAL unit and one or both of a transmission mode for the first fragmentation unit being a multi-session transmission mode and a first parameter being greater than a first value, parse a second parameter to determine a decoding order for the fragmented NAL unit; decode the fragmented NAL unit based on the determined decoding order.

公开(公告)号：US09648326B2

公开(公告)日：2017-05-09

申请号：US14318193

申请日：2014-06-27

Applicant: QUALCOMM Incorporated

Inventor： Jianle Chen ,  Ying Chen ,  Ye-Kui Wang ,  Krishnakanth Rapaka ,  Fnu Hendry

IPC: H04N19/105 ,  H04N19/196 ,  H04N19/187 ,  H04N19/174 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/174 ,  H04N19/196 ,  H04N19/30 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70

Abstract: A method of coding video data includes receiving one or more layers of video information. Each layer may include at least one picture. The method can include processing an indicator within at least one of a video parameter set (VPS), a sequence parameter set (SPS), or a picture parameter set (PPS) that indicates whether all direct reference layer pictures associated with the at least one of the video parameter set (VPS), the sequence parameter set (SPS), or the picture parameter set (PPS) are added to an inter-layer reference picture set. Based on the indicator, the method can further include refraining from further signaling inter-layer reference picture information in any video slice associated with the at least one of the video parameter set (VPS), the sequence parameter set (SPS), or the picture parameter set (PPS). Alternatively, based on the indicator, the method can further include adding to the inter-layer reference picture set all direct reference layer pictures for any video slice associated with the at least one of the video parameter set (VPS), the sequence parameter set (SPS), or the picture parameter set (PPS).

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：US09491457B2

公开(公告)日：2016-11-08

申请号：US14010054

申请日：2013-08-26

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04N19/50 ,  H04N19/70 ,  H04N19/61 ,  H04N19/107 ,  H04N19/174 ,  H04N19/167 ,  H04N19/23

CPC classification number: H04N19/50 ,  H04N19/107 ,  H04N19/167 ,  H04N19/174 ,  H04N19/23 ,  H04N19/61 ,  H04N19/70

Abstract: During a coding process, systems, methods, and apparatus may code information indicating whether gradual decoder refresh (GDR) of a picture is enabled. When GDR is enabled, the coding process, systems, methods, and apparatus may code information that indicates whether one or more slices of the picture belong to a foreground region of the picture. In another example, during a coding process, systems, methods, and apparatus may decode video data corresponding to an ISP identification (ISP ID) for one of the ISPs for slices of a picture. The systems, methods, and apparatus may decode video data corresponding to an ROI using the ISP.

Abstract translation: 在编码过程中，系统，方法和装置可以编码指示图片的逐渐解码器刷新（GDR）是否被启用的信息。 当启用GDR时，编码过程，系统，方法和装置可以编码指示图片的一个或多个片段是否属于图片的前景区域的信息。 在另一示例中，在编码处理期间，系统，方法和装置可以解码对应于用于图片切片的ISP之一的ISP标识（ISP ID）的视频数据。 系统，方法和装置可以使用ISP对与ROI进行对应的视频数据进行解码。

公开(公告)号：US09479773B2

公开(公告)日：2016-10-25

申请号：US14033141

申请日：2013-09-20

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04N19/00 ,  H04N19/423 ,  H04N19/85 ,  H04N19/90 ,  H04N19/44 ,  H04N19/70 ,  H04N19/46 ,  H04N19/196

CPC classification number: H04N19/70 ,  H04N19/196 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/85 ,  H04N19/90

Abstract: A video coding device, such as a video encoder or a video decoder, may be configured to code a duration between coded picture buffer (CPB) removal time of a first decoding unit (DU) in an access unit (AU) and a second DU, wherein the second DU is subsequent to the first DU in decoding order and in the same AU as the first DU. The video coding device may further determine a removal time of the DU based at least on the coded duration. The coding device may also code a sub-picture timing supplemental enhancement information (SEI) message associated with the first DU. The video coding device may further determine a removal time of the DU based at least in part on the sub-picture timing SEI message.

Abstract translation: 诸如视频编码器或视频解码器之类的视频编码装置可以被配置为在存取单元（AU）中的第一解码单元（DU）的编码图像缓冲器（CPB）去除时间和第二DU之间编码持续时间 ，其中所述第二DU在解码顺序中在所述第一DU之后，在与所述第一DU相同的AU中。 视频编码装置还可以至少基于编码的持续时间来确定DU的去除时间。 编码装置还可以对与第一DU相关联的子图像定时补充增强信息（SEI）消息进行编码。 视频编码装置还可以至少部分地基于子图像定时SEI消息来确定DU的去除时间。