公开(公告)号：US20170339415A1

公开(公告)日：2017-11-23

申请号：US15589782

申请日：2017-05-08

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Fnu Hendry

IPC: H04N19/167 ,  H04N19/70 ,  H04L29/06

CPC classification number: H04N19/167 ,  H04L65/601 ,  H04L65/607 ,  H04L65/80 ,  H04N19/132 ,  H04N19/162 ,  H04N19/176 ,  H04N19/70 ,  H04N21/234345 ,  H04N21/4728 ,  H04N21/8146 ,  H04N21/84 ,  H04N21/8456

Abstract: A device for determining information for video data includes one or more processors implemented in circuitry that are configured to determine one or more most-interested regions of a plurality of regions of an image of video data based on data representative of the one or more most-interested regions. The data representative of the one or more most-interested regions is external to video coding layer (VCL) data of a bitstream including the video data. The processors output a request for relatively high-quality video data for the one or more most-interested regions of the image and output, after outputting the request for the relatively high-quality video data, a request for relatively low-quality video data for one or more other regions of the image.

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：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：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：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：US20160232233A1

公开(公告)日：2016-08-11

申请号：US14969954

申请日：2015-12-15

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Ye-Kui Wang

IPC: G06F17/30 ,  H04N19/85 ,  H04N19/50 ,  H04N19/70 ,  H04N19/46

CPC classification number: G06F17/30784 ,  H04N19/46 ,  H04N19/50 ,  H04N19/70 ,  H04N19/85 ,  H04N21/85406

Abstract: A device generates, in a container box of a file for storage of video contents, a SampleGroupDescription box that provides a sample group description for a sample grouping. The SampleGroupDescription box includes a grouping type syntax element having a particular value. Additionally, the SampleGroupDescription box includes one or more sample group entries. The device generates, in the same container box, a plurality of SampleToGroup boxes. Each respective SampleToGroup box of the plurality of SampleToGroup boxes includes a respective grouping type syntax element having the particular value, includes a respective sample count syntax element indicating a number of samples in a respective sample grouping, and includes a respective group description index syntax element indicating an index of an entry in the SampleGroupDescription box which describes samples of the respective sample grouping. Each sample of the respective sample grouping comprises a respective picture of the video contents.

Abstract translation: 设备在用于存储视频内容的文件的容器框中生成SampleGroupDescription框，该框提供样本组的样本组描述。 SampleGroupDescription框包含具有特定值的分组类型语法元素。 此外，SampleGroupDescription框包含一个或多个样本组条目。 该设备在同一容器框中生成多个SampleToGroup框。 多个SampleToGroup框中的每个相应SampleToGroup框包括具有特定值的相应分组类型语法元素，包括指示相应样本分组中的抽样数量的相应样本计数语法元素，并且包括相应的组描述索引语法元素，其指示 SampleGroupDescription框中的条目的索引，该条目描述了相应样本分组的样本。 相应样本分组的每个样本包括视频内容的相应图片。

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。

公开(公告)号：US20160021375A1

公开(公告)日：2016-01-21

申请号：US14800498

申请日：2015-07-15

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Ying Chen

IPC: H04N19/146 ,  H04N19/70 ,  H04N19/42 ,  H04N19/184 ,  H04N19/12

CPC classification number: H04N19/70 ,  H04N19/12 ,  H04N19/146 ,  H04N19/184 ,  H04N19/187 ,  H04N19/31 ,  H04N19/42 ,  H04N21/234381 ,  H04N21/236 ,  H04N21/440281

Abstract: A video processing device may obtain, from a descriptor for a program comprising one or more elementary streams, a plurality of profile, tier, level (PTL) syntax element sets. The video processing device may obtain, from the descriptor, a plurality of operation point syntax element sets. For each respective operation point syntax element set of the plurality of operation point syntax element sets, the video processing device may determine, for each respective layer of the respective operation point specified by the respective operation point syntax element set, based on a respective syntax element in the respective operation point syntax element set, which of the PTL syntax element sets specifies the PTL information assigned to the respective layer, the respective operation point having a plurality of layers.

Abstract translation: 视频处理设备可以从包括一个或多个基本流的节目的描述符获得多个简档，层级（PTL）语法元素集合。 视频处理设备可以从描述符获得多个操作点语法元素集合。 对于多个操作点语法元素集合的每个相应的操作点语法元素集合，视频处理设备可以基于相应的语法元素来确定由各个操作点语法元素集合指定的各个操作点的每个相应层 在相应的操作点语法元素集合中，哪个PTL语法元素集合指定分配给各个层的PTL信息，各个操作点具有多个层。

公开(公告)号：US20150271498A1

公开(公告)日：2015-09-24

申请号：US14665923

申请日：2015-03-23

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/13 ,  H04N19/91 ,  H04N19/187 ,  H04N19/154 ,  H04N19/166

CPC classification number: H04N19/37 ,  H04N19/30 ,  H04N19/60 ,  H04N19/70 ,  H04N19/88 ,  H04N19/89

Abstract: In an example, a method of coding video data includes coding one or more non-video coding layer (VCL) network abstraction layer (NAL) units of a layer of a multi-layer bitstream, where the one or more non-VCL NAL units contain a decoded picture hash SEI message. The method also includes determining a set of layers of the multi-layer bitstream to which the decoded picture hash SEI message is applicable based on a layer identifier of the one or more non-VCL NAL units containing the decoded picture hash SEI message.

Abstract translation: 在一个示例中，视频数据的编码方法包括对多层比特流层的一个或多个非视频编码层（VCL）网络抽象层（NAL）单元进行编码，其中一个或多个非VCL NAL单元 包含解码图片哈希SEI消息。 该方法还包括基于包含解码图像哈希SEI消息的一个或多个非VCL NAL单元的层标识符来确定解码图像哈希SEI消息可应用于的多层比特流的一组层。