公开(公告)号：US09900605B2

公开(公告)日：2018-02-20

申请号：US14513034

申请日：2014-10-13

Applicant: QUALCOMM Incorporated

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

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70 ,  H04N19/80 ,  H04N19/68 ,  H04N19/86

CPC classification number: H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/68 ,  H04N19/70 ,  H04N19/80 ,  H04N19/86

Abstract: An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a video layer having a picture. The processor is configured to determine whether the picture is a non-picture-order-count (POC)-anchor picture, and based on the determination of whether the picture is a non-POC-anchor picture, perform one of (1) refraining from indicating a POC reset in connection with the picture, or (2) indicating the POC reset in connection with the picture. The processor may encode or decode the video information.

公开(公告)号：US20180046858A1

公开(公告)日：2018-02-15

申请号：US15264270

申请日：2016-09-13

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Jianfeng Ren ,  Jian Wei ,  Ning Bi

IPC: G06K9/00 ,  G06K9/34 ,  G06T7/00 ,  G06T5/20

CPC classification number: G06K9/00577 ,  G06K9/00771 ,  G06K9/342 ,  G06T5/20 ,  G06T7/11 ,  G06T7/194 ,  G06T2207/10016 ,  G06T2207/20024 ,  G06T2207/20221 ,  G06T2207/30232

Abstract: Techniques and systems are provided for processing video data. For example, techniques and systems are provided for performing content-adaptive blob filtering. A number of blobs generated for a video frame is determined. A size of a first blob from the blobs is determined, the first blob including pixels of at least a portion of a first foreground object in the video frame.The first blob is filtered from the plurality of blobs when the size of the first blob is less than a size threshold. The size threshold is determined based on the number of the plurality of blobs generated for the video frame.

公开(公告)号：US20180035120A1

公开(公告)日：2018-02-01

申请号：US15220856

申请日：2016-07-27

Applicant: QUALCOMM Incorporated

Inventor： Jian Wei ,  Ying Chen ,  Lei Wang

IPC: H04N19/44 ,  G06T1/20 ,  H04N19/12

CPC classification number: H04N19/44 ,  G06T1/20 ,  H04N19/10 ,  H04N19/12

Abstract: In an example of this disclosure, a method may include receiving or generating image segmentation data for a plurality of pixels. The image segmentation data may include one or more image segmentation values for each pixel of the plurality of pixels. The method may include converting the one or more image segmentation values into one or more image component values. The method may include sending the one or more image component values corresponding to the one or more image segmentation values to a video encoder.

公开(公告)号：US09800857B2

公开(公告)日：2017-10-24

申请号：US14149260

申请日：2014-01-07

Applicant: QUALCOMM Incorporated

Inventor： Li Zhang ,  Ying Chen ,  Marta Karczewicz

IPC: H04N13/00 ,  H04N19/597 ,  H04N19/105 ,  H04N19/172 ,  H04N19/513 ,  H04N19/80 ,  H04N19/573 ,  H04N19/577

CPC classification number: H04N13/161 ,  H04N19/105 ,  H04N19/172 ,  H04N19/513 ,  H04N19/573 ,  H04N19/577 ,  H04N19/597 ,  H04N19/80

Abstract: A video coder scales a motion vector of a current prediction unit (PU) of a current picture in order to compensate for a difference in temporal distance. In addition, the video coder determines a predictive block for the current PU, determines a disparity reference block based on samples of the disparity reference picture at a location indicated by a disparity vector of the current PU, and determines, based on samples of the fixed reference picture at a location indicated by the scaled motion vector, a temporal-disparity reference block for the current PU. The video coder then determines a residual predictor for the current PU. Each sample of the residual predictor for the current PU indicates a difference between a sample of the temporal-disparity reference block for the current PU and a corresponding sample of the disparity reference block.

公开(公告)号：US09794579B2

公开(公告)日：2017-10-17

申请号：US14330836

申请日：2014-07-14

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/29 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70 ,  H04N19/423

CPC classification number: H04N19/29 ,  H04N19/30 ,  H04N19/423 ,  H04N19/597 ,  H04N19/70

Abstract: A method of decoding video data comprising partitioning a decoded picture buffer (DPB) into a plurality of sub-DPBs, receiving at least one indication of a sub-DPB size for the plurality of sub-DPBs for one or more operation points of a multi-layer video coding process, and allocating memory space for the plurality of sub-DPBs based on the at least one indication.

公开(公告)号：US09712843B2

公开(公告)日：2017-07-18

申请号：US14521153

申请日：2014-10-22

Applicant: QUALCOMM Incorporated

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

IPC: H04N5/76 ,  H04N19/597 ,  H04N19/46 ,  H04N19/136 ,  H04N5/91 ,  H04N19/70 ,  H04N19/30 ,  H04N19/573 ,  H04N19/58 ,  H04N19/59 ,  H04N21/845 ,  H04N21/854 ,  H04N19/52 ,  H04N19/91

CPC classification number: H04N19/597 ,  H04N5/91 ,  H04N19/136 ,  H04N19/30 ,  H04N19/46 ,  H04N19/52 ,  H04N19/573 ,  H04N19/58 ,  H04N19/59 ,  H04N19/70 ,  H04N19/91 ,  H04N21/8453 ,  H04N21/85406

Abstract: A computing device generates a file that comprises a media data box that encloses media content. The media content comprises a sequence of samples. Each of the samples is an access unit of multi-layer video data. Responsive to a determination that at least one access unit of a bitstream of the multi-layer video data includes a coded picture that has a picture output flag equal to a first value and a coded picture that has a picture output flag equal to a second value, the computing device uses at least two tracks to store the bitstream in the file. For each respective track from the at least two tracks, all coded pictures in each sample of the respective track have the same value of the picture output flag.

公开(公告)号：US09674519B2

公开(公告)日：2017-06-06

申请号：US14074281

申请日：2013-11-07

Applicant: QUALCOMM Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang

IPC: H04N7/26 ,  H04N19/117 ,  H04N19/597 ,  H04N19/70 ,  H04N19/30 ,  H04N19/187

CPC classification number: H04N19/117 ,  H04N19/187 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70

Abstract: In an example, a video coder may determine a first layer component of a first layer of video data, wherein the first layer of video data is associated with a layer identifier. The video coder may generate at least one filtered layer component by filtering the first layer component, and assign the layer identifier of the first layer and a filtered layer component index to the at least one filtered layer component, where the filtered layer component index is different than a layer component index of the first layer component. The video coder may also add the at least one filtered layer component to a reference picture set for performing inter-layer prediction of a layer other than the first layer of video data.

公开(公告)号：US20170134708A1

公开(公告)日：2017-05-11

申请号：US15409105

申请日：2017-01-18

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Ying Chen

IPC: H04N13/00 ,  H04N19/44 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70

CPC classification number: H04N13/161 ,  H04N5/76 ,  H04N5/765 ,  H04N5/919 ,  H04N9/8042 ,  H04N9/8205 ,  H04N19/44 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70

Abstract: Techniques for encapsulating video streams containing multiple coded views in a media file are described herein. In one example, a method includes parsing a track of video data, wherein the track includes one or more views. The method further includes parsing information to determine whether a texture view or a depth view of a reference view is required for decoding at least one of the one or more views in the track. Another example method includes composing a track of video data, wherein the track includes one or more views and composing information that indicates whether a texture view or a depth view of a reference view is required for decoding at least one of the one or more views in the track.

公开(公告)号：US09648317B2

公开(公告)日：2017-05-09

申请号：US13753247

申请日：2013-01-29

Applicant: Qualcomm Incorporated

Inventor： Ye-Kui Wang ,  Ying Chen

IPC: H04N7/12 ,  H04N19/174 ,  H04N19/70 ,  H04N19/46

CPC classification number: H04N19/174 ,  H04N19/46 ,  H04N19/70

Abstract: A device comprising a video file creation module is configured to obtain a plurality of slices of coded video content. Parameter sets are associated with the coded video content. The video creation module encapsulates the plurality of slices of coded video content within one or more access units of a video stream. A first type of parameter set may be encapsulated within one or more access units of the video stream. A second type of parameter set may be encapsulated within a sample description. The sample description may include stream properties associated with the video stream.

公开(公告)号：US09648299B2

公开(公告)日：2017-05-09

申请号：US14137063

申请日：2013-12-20

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Ying Chen

IPC: H04N9/00 ,  H04N13/00 ,  H04N5/919 ,  H04N5/76 ,  H04N9/804 ,  H04N19/597 ,  H04N19/46 ,  H04N19/70 ,  H04N5/765

CPC classification number: H04N13/161 ,  H04N5/76 ,  H04N5/765 ,  H04N5/919 ,  H04N9/8042 ,  H04N19/44 ,  H04N19/46 ,  H04N19/597 ,  H04N19/70

Abstract: Techniques for encapsulating video streams containing multiple coded views in a media file are described herein. In one example, a method includes parsing a track of video data, wherein the track includes one or more views. The method further includes parsing information to determine whether the track includes only texture views, only depth views, or both texture and depth views. Another example method includes composing a track of video data, wherein the track includes one or more views and composing information that indicates whether the track includes only texture views, only depth views, or both texture and depth views.