公开(公告)号：US20150373333A1

公开(公告)日：2015-12-24

申请号：US14742468

申请日：2015-06-17

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/136 ,  H04N19/187 ,  H04N19/184 ,  H04N19/31 ,  H04N19/44

CPC classification number: H04N19/136 ,  H04N19/119 ,  H04N19/184 ,  H04N19/187 ,  H04N19/188 ,  H04N19/196 ,  H04N19/30 ,  H04N19/31 ,  H04N19/44 ,  H04N19/59 ,  H04N19/70

Abstract: Techniques and systems are provided for encoding video data. For example, a method of encoding video data includes generating, by an encoder, an encoded video bitstream according to a first coding protocol. The encoded video bitstream includes one or more enhancement layers and a video parameter set defining parameters of the encoded video bitstream. The method further includes determining that a base layer is to be provided to a decoding device by an external source and is not to be provided as part of the encoded video bitstream. The method further includes assigning a minimum value to a syntax structure in the video parameter set when it is determined that the base layer is to be provided by the external source. The syntax structure defines profile, tier, and level parameters for the base layer.

Abstract translation: 提供了用于编码视频数据的技术和系统。 例如，编码视频数据的方法包括由编码器根据第一编码协议生成编码视频位流。 编码视频比特流包括一个或多个增强层和定义编码视频位流参数的视频参数集。 该方法还包括确定基本层将被外部源提供给解码设备，并且不被提供为编码视频比特流的一部分。 该方法还包括当确定要由外部源提供基本层时，为视频参数集中的语法结构分配最小值。 语法结构定义了基础层的配置文件，层和级别参数。

公开(公告)号：US20150319449A1

公开(公告)日：2015-11-05

申请号：US14700982

申请日：2015-04-30

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/44 ,  H04N19/48

CPC classification number: H04N21/4516 ,  H04N19/127 ,  H04N19/157 ,  H04N19/187 ,  H04N19/29 ,  H04N19/30 ,  H04N19/39 ,  H04N19/436 ,  H04N19/44 ,  H04N19/48 ,  H04N19/66 ,  H04N19/70 ,  H04N19/85 ,  H04N21/234327 ,  H04N21/816

Abstract: A video decoder is configured to decode a bitstream that comprises an encoded representation of video data. As part of decoding the bitstream, the video decoder obtains, from the bitstream, one or more syntax elements indicating one or more partitioning schemes. For each respective partitioning scheme of the one or more partitioning schemes, the respective partitioning scheme specifies a respective set of disjoint partitions whose union forms an output layer set. Each respective partition of the respective set of disjoint partitions contains one or more of the layers. The video decoder is further configured to decode each of the partitions of a particular partitioning scheme using different processing cores in a plurality of hardware cores, the particular partitioning scheme being one of the one or more partitioning schemes.

Abstract translation: 视频解码器被配置为对包括视频数据的编码表示的比特流进行解码。 作为对比特流进行解码的一部分，视频解码器从比特流获得指示一个或多个分割方案的一个或多个语法元素。 对于一个或多个分区方案的每个相应的分区方案，相应的分区方案指定相互组合的不相交分区，其组合形成输出层集合。 相应组的不相交分区的每个相应分区包含一个或多个层。 视频解码器还被配置为使用多个硬件核心中的不同处理核心对特定分区方案的每个分区进行解码，该特定分区方案是一个或多个分区方案之一。

公开(公告)号：US20150195555A1

公开(公告)日：2015-07-09

申请号：US14584993

申请日：2014-12-29

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/46 ,  H04N19/52

CPC classification number: H04N19/46 ,  H04N19/172 ,  H04N19/174 ,  H04N19/187 ,  H04N19/30 ,  H04N19/52 ,  H04N19/68 ,  H04N19/70

Abstract: Methods for coding recovery point supplemental enhancement information (SEI) messages and region refresh SEI messages in multi-layer coding are disclosed. In one aspect, the method may include determining at least one picture among a plurality of pictures included within an access unit with which to associate at least one recovery point SEI message, the access unit being included within the multi-layer bitstream. The method may further include associating the at least one recovery point SEI message with the determined at least one picture. The method may also include coding the video information based at least in part on the association of the at least one recovery point SEI message with the determined at least one picture.

Abstract translation: 公开了用于对多层编码中的恢复点补充增强信息（SEI）消息和区域刷新SEI消息进行编码的方法。 在一个方面，该方法可以包括确定包括在与至少一个恢复点SEI消息相关联的接入单元内的多个画面中的至少一个画面，该接入单元包括在多层比特流内。 所述方法还可以包括将所述至少一个恢复点SEI消息与所确定的至少一个图片相关联。 该方法还可以包括至少部分地基于至少一个恢复点SEI消息与所确定的至少一个图片的关联来对视频信息进行编码。

公开(公告)号：US20150172667A1

公开(公告)日：2015-06-18

申请号：US14567710

申请日：2014-12-11

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/136 ,  H04N19/90 ,  H04N19/44

CPC classification number: H04N19/105 ,  H04N19/103 ,  H04N19/114 ,  H04N19/136 ,  H04N19/172 ,  H04N19/188 ,  H04N19/30 ,  H04N19/44 ,  H04N19/597 ,  H04N19/65 ,  H04N19/70 ,  H04N19/90

Abstract: In an example, a method of decoding video data includes decoding data that indicates a picture order count (POC) reset for a POC value of a first picture of a first received layer of multi-layer video data, where the first picture is included in an access unit. The method also includes, based on the data that indicates the POC reset for the POC value of the first picture and prior to decoding the first picture, outputting all pictures stored in a decoded picture buffer (DPB) that precede the first picture in coding order and that are not included in the access unit.

Abstract translation: 在一个示例中，解码视频数据的方法包括解码数据，该数据指示针对第一接收层多层视频数据的第一图像的POC值重置的图像顺序计数（POC），其中第一图像被包括在 访问单元。 该方法还包括基于指示第一图像的POC值的POC复位的数据并且在解码第一图像之前，以编码顺序输出存储在第一图像之前的解码图像缓冲器（DPB）中的所有图像 并且不包括在访问单元中。

公开(公告)号：US20150110203A1

公开(公告)日：2015-04-23

申请号：US14521042

申请日：2014-10-22

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/136 ,  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 track box that contains metadata for a track in the file. Media data for the track comprises a sequence of samples, each of the samples being a video access unit of multi-layer video data. As part of generating the file, the computing device generates, in the file, a sub-sample information box that contains flags that specify a type of sub-sample information given in the sub-sample information box. When the flags have a particular value, a sub-sample corresponding to the sub-sample information box contains exactly one coded picture and zero or more non-Video Coding Layer (VCL) Network Abstraction Layer (NAL) units associated with the coded picture.

Abstract translation: 计算设备生成包括包含文件中的轨道的元数据的轨道框的文件。 用于轨道的媒体数据包括一系列样本，每个样本是多层视频数据的视频访问单元。 作为生成文件的一部分，计算设备在文件中生成包含指定子样本信息框中给出的子样本信息的类型的标志的子样本信息框。 当标志具有特定值时，对应于子样本信息框的子样本包含与编码图像相关联的恰好一个编码图像和零个或多个非视频编码层（VCL）网络抽象层（NAL）单元。

公开(公告)号：US11212438B2

公开(公告)日：2021-12-28

申请号：US16270275

申请日：2019-02-07

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Muhammed Zeyd Coban ,  Fnu Hendry ,  Marta Karczewicz

IPC: H04N19/597 ,  H04N19/82 ,  H04N19/503 ,  H04N19/86 ,  H04N5/232 ,  H04N19/46 ,  H04N19/167 ,  H04N19/33

Abstract: An example method includes, receiving an encoded picture of 360-degree video data, the encoded picture of 360-degree video data being arranged in packed faces obtained from a projection of a sphere of the 360-degree video data; decoding the picture of encoded 360-degree video data to obtain a reconstructed picture of 360-degree video data, the reconstructed picture of 360-degree video data being arranged in the packed faces; padding the reconstructed picture of 360-degree video data to generate a padded reconstructed picture of 360-degree video data; in-loop filtering the padded reconstructed picture of 360-degree video data to generate a padded and filtered reconstructed picture of 360-degree video data; and storing the padded and filtered reconstructed picture of 360-degree video data in a reference picture memory for use in predicting subsequent pictures of 360-degree video data.

公开(公告)号：US10582201B2

公开(公告)日：2020-03-03

申请号：US15589782

申请日：2017-05-08

Applicant: QUALCOMM Incorporated

Inventor： Ye-Kui Wang ,  Fnu Hendry

IPC: H04N19/167 ,  H04N19/70 ,  H04N19/132 ,  H04N19/176 ,  H04N21/84 ,  H04N21/845 ,  H04N21/81 ,  H04N21/4728 ,  H04N19/162 ,  H04N21/2343 ,  H04L29/06

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：US10419768B2

公开(公告)日：2019-09-17

申请号：US15470148

申请日：2017-03-27

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Ye-Kui Wang

IPC: H04N19/169 ,  H04N19/119 ,  H04N19/70 ,  H04N19/30 ,  H04N21/854

Abstract: A device generates a Network Abstraction Layer (NAL) Unit Map Entry box in a file. The NAL Unit Map Entry box associates NAL units with a tile set that includes two or more tiles of a plurality of tiles into which a current picture is partitioned. A region of the current picture covered by the tile set may be non-rectangular. Additionally, the device generates a tile set group entry in the file. The tile set group entry includes a horizontal offset, a vertical offset, a width, and a height. The horizontal offset specifies a horizontal offset of a top-left pixel of a minimum rectangular region that covers tiles in the tile set. The vertical offset specifies a vertical offset of the top-left pixel of the minimum rectangular region. The width specifies a width of the minimum rectangular region. The height specifies a height of the minimum rectangular region.

公开(公告)号：US20190253732A1

公开(公告)日：2019-08-15

申请号：US16271065

申请日：2019-02-08

Applicant: QUALCOMM Incorporated

Inventor： Fnu Hendry ,  Geert Van der Auwera ,  Muhammed Zeyd Coban ,  Marta Karczewicz

IPC: H04N19/597 ,  H04N19/593 ,  H04N19/176 ,  H04N19/105 ,  H04N5/232

Abstract: A video coder may determine reference samples based on a location of a current block of a current picture of the 360-degree video data and a packing arrangement that defines an arrangement of a plurality of regions in the current picture. The current picture is in a projected domain and each respective region of the plurality of regions is a respective face defined by a projection of 360-degree video data. The regions are arranged in the current picture according to the packing arrangement. Based on the location of the current block being at a border of the first region that is adjacent to the second region and there being a discontinuity at the border due to the packing arrangement, the reference samples are samples of the current picture that spatially neighbor the current block in a spherical domain and not in the projected domain.

公开(公告)号：US20190253622A1

公开(公告)日：2019-08-15

申请号：US16270275

申请日：2019-02-07

Applicant: QUALCOMM Incorporated

Inventor： Geert Van der Auwera ,  Muhammed Zeyd Coban ,  Fnu Hendry ,  Marta Karczewicz

IPC: H04N5/232 ,  H04N19/597 ,  H04N19/82

CPC classification number: H04N5/23238 ,  H04N19/597 ,  H04N19/82

Abstract: An example method includes, receiving an encoded picture of 360-degree video data, the encoded picture of 360-degree video data being arranged in packed faces obtained from a projection of a sphere of the 360-degree video data; decoding the picture of encoded 360-degree video data to obtain a reconstructed picture of 360-degree video data, the reconstructed picture of 360-degree video data being arranged in the packed faces; padding the reconstructed picture of 360-degree video data to generate a padded reconstructed picture of 360-degree video data; in-loop filtering the padded reconstructed picture of 360-degree video data to generate a padded and filtered reconstructed picture of 360-degree video data; and storing the padded and filtered reconstructed picture of 360-degree video data in a reference picture memory for use in predicting subsequent pictures of 360-degree video data.