公开(公告)号：US20130135433A1

公开(公告)日：2013-05-30

申请号：US13689508

申请日：2012-11-29

Applicant: Qualcomm Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang

IPC: H04N13/00

CPC classification number: H04N19/50 ,  H04N13/10 ,  H04N13/161 ,  H04N19/176 ,  H04N19/423 ,  H04N19/597 ,  H04N19/70

Abstract: In general, techniques are described for separately coding depth and texture components of video data. A video coding device configured to code video data may perform the techniques. The video coding device may comprise a decoded picture buffer and a processor configured to store a depth component in the decoded picture buffer, analyze a view dependency to determine whether the depth component is used for inter-view prediction and remove the depth component from the decoded picture buffer in response to determining that the depth component is not used for inter-view prediction. for processing video data including a view component comprised of a depth component and a texture component

Abstract translation: 通常，描述用于分别编码视频数据的深度和纹理分量的技术。 被配置为对视频数据进行编码的视频编码装置可以执行这些技术。 视频编码装置可以包括解码图像缓冲器和被配置为在解码图像缓冲器中存储深度分量的处理器，分析视图依赖性以确定深度分量是否用于视角间预测，并从解码的图像缓冲器中去除深度分量 响应于确定深度分量不用于视域间预测的图像缓冲器。 用于处理包括由深度分量和纹理分量组成的视图分量的视频数据

公开(公告)号：US20130107953A1

公开(公告)日：2013-05-02

申请号：US13664279

申请日：2012-10-30

Applicant: Qualcomm Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang ,  Jianle Chen

IPC: H04N7/32

CPC classification number: H04N19/172 ,  H04N19/107 ,  H04N19/132 ,  H04N19/177 ,  H04N19/423 ,  H04N19/44 ,  H04N19/463 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

Abstract: As one example, techniques for decoding video data include receiving a bitstream that includes one or more pictures of a coded video sequence (CVS), decoding a first picture according to a decoding order, wherein the first picture is a random access point (RAP) picture that is not an instantaneous decoding refresh (IDR) picture, and decoding at least one other picture following the first picture according to the decoding order based on the decoded first picture. As another example, techniques for encoding video data include generating a bitstream that includes one or more pictures of a CVS, wherein a first picture according to the decoding order is a RAP picture that is not an IDR picture, and avoiding including at least one other picture, other than the first picture, that corresponds to a leading picture associated with the first picture, in the bitstream.

Abstract translation: 作为一个示例，用于解码视频数据的技术包括接收包括编码视频序列（CVS）的一个或多个图像的比特流，根据解码顺序解码第一图像，其中第一图像是随机接入点（RAP） 图像，其不是瞬时解码刷新（IDR）图像，并且基于解码的第一图像根据解码顺序对第一图像之后的至少一个其他图像进行解码。 作为另一示例，用于编码视频数据的技术包括生成包括CVS的一个或多个图片的比特流，其中根据解码顺序的第一图片是不是IDR图片的RAP图片，并且避免包括至少一个其他 在比特流中对应于与第一图像相关联的前导图像的第一图像之外的图像。

公开(公告)号：US20130107942A1

公开(公告)日：2013-05-02

申请号：US13664057

申请日：2012-10-30

Applicant: Qualcomm Incorporated

Inventor： Ying Chen ,  Ye-Kui Wang ,  Rajan Laxman Joshi ,  Marta Karczewicz

IPC: H04N7/26

CPC classification number: H04N19/66 ,  H04N19/463 ,  H04N19/70

Abstract: A video encoder generates a first network abstraction layer (NAL) unit. The first NAL unit contains a first fragment of a parameter set associated with video data. The video encoder also generates a second NAL unit. The second NAL unit contains a second fragment of the parameter set. A video decoder may receive a bitstream that includes the first and second NAL units. The video decoder decodes, based at least in part on the parameter set, one or more coded pictures of the video data.

Abstract translation: 视频编码器生成第一网络抽象层（NAL）单元。 第一个NAL单元包含与视频数据相关联的参数集的第一个片段。 视频编码器还产生第二NAL单元。 第二个NAL单元包含参数集的第二个片段。 视频解码器可以接收包括第一和第二NAL单元的比特流。 视频解码器至少部分地基于参数集来解码视频数据的一个或多个编码图像。

公开(公告)号：US20130101035A1

公开(公告)日：2013-04-25

申请号：US13658453

申请日：2012-10-23

Applicant: Qualcomm Incorporated

Inventor： Ye-Kui Wang ,  Ying Chen ,  Muhammed Zeyd Coban ,  Marta Karczewicz

IPC: H04N7/32 ,  H04N7/26

CPC classification number: H04N19/436 ,  H04N19/17 ,  H04N19/174 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/895

Abstract: Techniques described herein for coding video data include techniques for coding pictures partitioned into tiles, in which each of the plurality of tiles in a picture is assigned to one of a plurality of tile groups. One example method for coding video data comprising a picture that is partitioned into a plurality tiles comprises coding video data in a bitstream, and coding, in the bitstream, information that indicates one of a plurality of tile groups to which each of the plurality of tiles is assigned. The techniques for grouping tiles described herein may facilitate improved parallel processing for both encoding and decoding of video bitstreams, improved error resilience, and more flexible region of interest (ROI) coding.

Abstract translation: 本文描述的用于编码视频数据的技术包括用于对分割成瓦片的图像进行编码的技术，其中将图片中的多个瓦片中的每一个分配给多个瓦片组中的一个。 用于编码视频数据的一个示例性方法包括分割成多个片的图像包括：对比特流中的视频数据进行编码，以及在比特流中编码指示多个瓦片组中的每一个的多个瓦片组之一的信息 被分配。 用于分组的瓦片的技术可以促进对视频比特流的编码和解码的改进的并行处理，改善的错误弹性以及更灵活的感兴趣区域（ROI）编码。

公开(公告)号：US11438609B2

公开(公告)日：2022-09-06

申请号：US14242526

申请日：2014-04-01

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/30 ,  H04N19/463 ,  H04N19/573 ,  H04N19/70 ,  H04N19/58

Abstract: In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory configured to store inter-layer reference pictures associated with a current picture that is being coded. The apparatus further comprises a processor operationally coupled to the memory. In one embodiment, the processor is configured to indicate a number of inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to indicate which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to determine an inter-layer reference picture set associated with the current picture using the indication of the number of inter-layer reference pictures and the indication of which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction.

公开(公告)号：US11388441B2

公开(公告)日：2022-07-12

申请号：US14657617

申请日：2015-03-13

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/70 ,  H04N19/30 ,  H04N19/124 ,  H04N19/187 ,  H04N19/46 ,  H04N19/60 ,  H04N19/172 ,  H04N19/31 ,  H04N19/169

Abstract: According to certain aspects, an apparatus for coding video information includes a memory and a processor configured to determine whether a first syntax element is present in a bitstream, the first syntax element associated with a sequence parameter set (SPS) and a first flag indicative of whether a temporal identifier (ID) of a reference picture for pictures that refer to the SPS can be nested; and in response to determining that the first syntax element is not present in the bitstream: obtain a second syntax element indicative of a maximum number of temporal sub-layers in a particular layer of the plurality of layers; and determine whether to set the first flag equal to a second flag indicative of whether a temporal ID of a reference picture for any pictures can be nested based at least in part on a value of the second syntax element.

公开(公告)号：US11178378B2

公开(公告)日：2021-11-16

申请号：US16917476

申请日：2020-06-30

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Ying Chen

IPC: H04N7/18 ,  H04N13/161 ,  H04N19/70 ,  H04N5/76 ,  H04N9/804 ,  H04N19/597 ,  H04N19/46 ,  H04N9/82 ,  H04N5/919 ,  H04N19/44 ,  H04N5/765

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 multiview video data, wherein the track includes at least one depth view. The method further includes parsing information to determine a spatial resolution associated with the depth view, wherein decoding the spatial resolution does not require parsing of a sequence parameter set of the depth view. Another example method includes composing a track of multiview video data, wherein the track includes the one or more views. The example method further includes composing information to indicate a spatial resolution associated with the depth view, wherein decoding the spatial resolution does not require parsing of a sequence parameter set of the depth view.

公开(公告)号：US11115669B2

公开(公告)日：2021-09-07

申请号：US16746113

申请日：2020-01-17

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/30 ,  H04N19/169 ,  H04N21/854 ,  H04N19/70 ,  H04N19/172

Abstract: A device includes, in a first track of the file, a first end of sequence (EOS) network abstraction layer (NAL) unit for a coded video sequence of a bitstream. The first EOS NAL unit is in a first access unit of the coded video sequence. The device also includes, in a second track of the file, a second EOS NAL unit for the coded video sequence. The second EOS NAL unit is in a second access unit of the coded video sequence, the second EOS NAL unit being different from the first EOS NAL unit. The device may perform similar actions for end of bitstream (EOB) NAL units.

公开(公告)号：US10979691B2

公开(公告)日：2021-04-13

申请号：US15495730

申请日：2017-04-24

Applicant: QUALCOMM Incorporated

Inventor： Bijan Forutanpour ,  Ye-Kui Wang ,  Phi Hung Nguyen ,  Ning Bi

IPC: H04N13/161 ,  H04N5/262 ,  H04N19/597 ,  H04N5/232

Abstract: Provided are systems, methods, and computer-readable medium for including parameters that describe fisheye images in a 360-degree video with the 360-degree video. The 360-degree video can then be stored and/or transmitted as captured by the omnidirectional camera, without transforming the fisheye images into some other format. The parameters can later be used to map the fisheye images to an intermediate format, such as an equirectangular format. The intermediate format can be used to store, transmit, and/or display the 360-degree video. The parameters can alternatively or additionally be used to map the fisheye images directly to a format that can be displayed in a 360-degree video presentation, such as a spherical format.

公开(公告)号：US10917564B2

公开(公告)日：2021-02-09

申请号：US15718581

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Ye-Kui Wang

IPC: H04N7/12 ,  H04N5/232 ,  H04N21/218 ,  H04N21/2662 ,  H04N21/81 ,  H04N21/2343 ,  H04N21/84 ,  H04N19/61 ,  H04N21/4402 ,  H04N19/33 ,  H04N21/8543 ,  H04N19/70 ,  H04N19/162 ,  H04N21/845 ,  H04N19/172 ,  H04N19/103 ,  H04L29/08

Abstract: Techniques and systems are provided for processing video data. For example, 360-degree video data can be obtained for processing by an encoding device or a decoding device. The 360-degree video data includes pictures divided into motion-constrained tiles. The 360-degree video data can be used to generate a media file including several tracks. Each of the tracks contain a set of at least one of the motion-constrained tiles. The set of at least one of the motion-constrained tiles corresponds to at least one of several viewports of the 360-degree video data. A first tile representation can be generated for the media file. The first tile representation encapsulates a first track among the several tracks, and the first track includes a first set of at least one of the motion-constrained tiles at a first tile location in the pictures of the 360-degree video data. The first set of at least one of the motion-constrained tiles corresponds to a viewport of the 360-degree video data.