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1. 发明授权

US10244200B2 View-dependent operations during playback of panoramic video 有权
公开(公告)号：US10244200B2
公开(公告)日：2019-03-26
申请号：US15384237
申请日：2016-12-19
申请人： Microsoft Technology Licensing, LLC
发明人： Matthew Wozniak , Bakkama Srinath Reddy , Vladislav Alexandrov , David H. Mebane , Dibyajyoti Roy , Shyam Sadhwani
IPC分类号： H04N5/775 , H04N19/136 , H04N19/44 , G06T7/13 , G06T7/90 , G06T3/20 , H04N9/67 , H04N13/243 , H04N5/76 , H04N5/232 , G06T3/00
摘要： Innovations in reconstruction and rendering of panoramic video are described. For example, a view-dependent operation controller of a panoramic video playback system receives an indication of a view direction for an application and, based at least in part on the view direction, identifies a section of a picture of panoramic video in an input projection. The view-dependent operation controller limits operations of a color converter, video decoder, and/or streaming controller to the identified section. In this way, the panoramic video playback system can avoid performing operations to reconstruct sections of the picture of panoramic video that will not be viewed. As another example, a mapper of a panoramic video playback system re-projects at least some sample values in an input flat projection towards a center location for a view direction, producing an output flat projection, which an application can use to generate one or more screen projections.

2. 发明授权

US10242714B2 Interface for application-specified playback of panoramic video 有权
公开(公告)号：US10242714B2
公开(公告)日：2019-03-26
申请号：US15384210
申请日：2016-12-19
申请人： Microsoft Technology Licensing, LLC
发明人： Dibyajyoti Roy , Vladislav Alexandrov , David H. Mebane , Aaron Oneal , Matthew Wozniak , Bakkama Srinath Reddy , Shyam Sadhwani
IPC分类号： H04N13/00 , H04N21/6587 , G11B27/10 , H04N5/232 , H04N21/81 , H04N21/472 , H04N21/44 , H04N21/4402 , H04N21/218
摘要： Innovations in reconstruction and rendering of panoramic video are described, including the use of a platform rendering engine to provide a screen projection based on a view direction specified for an application through an interface. For example, based at least in part on the view direction specified for the application, at least a section of panoramic video in an input projection is identified. At least some of sample values of the at least a section of the picture of panoramic video in the input projection are mapped to a screen projection. The screen projection is output for display to a buffer for the application. Thus, an application may use panoramic video, including updating a view direction, without itself having to render a screen projection for the panoramic video.

3. 发明申请

US20190246084A1 RE-PROJECTING FLAT PROJECTIONS OF PICTURES OF PANORAMIC VIDEO FOR RENDERING BY APPLICATION 审中-公开
公开(公告)号：US20190246084A1
公开(公告)日：2019-08-08
申请号：US16269230
申请日：2019-02-06
申请人： Microsoft Technology Licensing, LLC
发明人： Matthew Wozniak , Bakkama Srinath Reddy , Vladislav Alexandrov , David H. Mebane , Dibyajyoti Roy , Shyam Sadhwani
IPC分类号： H04N9/31 , H04N19/597 , H04N19/85 , H04N19/44 , G06T3/00 , H04N9/64
摘要： Innovations in reconstruction and rendering of panoramic video are described. For example, a view-dependent operation controller of a panoramic video playback system receives an indication of a view direction for an application and, based at least in part on the view direction, identifies a section of a picture of panoramic video in an input projection. The view-dependent operation controller limits operations of a color converter, video decoder, and/or streaming controller to the identified section. In this way, the panoramic video playback system can avoid performing operations to reconstruct sections of the picture of panoramic video that will not be viewed. As another example, a mapper of a panoramic video playback system re-projects at least some sample values in an input flat projection towards a center location for a view direction, producing an output flat projection, which an application can use to generate one or more screen projections.

4. 发明申请

US20180152663A1 VIEW-DEPENDENT OPERATIONS DURING PLAYBACK OF PANORAMIC VIDEO 审中-公开
公开(公告)号：US20180152663A1
公开(公告)日：2018-05-31
申请号：US15384237
申请日：2016-12-19
申请人： Microsoft Technology Licensing, LLC
发明人： Matthew Wozniak , Bakkama Srinath Reddy , Vladislav Alexandrov , David H. Mebane , Dibyajyoti Roy , Shyam Sadhwani
IPC分类号： H04N5/775 , H04N5/232 , G06T3/20 , H04N19/44 , G06T7/90 , H04N19/136 , G06T7/13
CPC分类号： H04N5/775 , G06T3/0037 , G06T3/0043 , G06T3/005 , G06T3/0062 , G06T3/20 , G06T7/13 , G06T7/90 , H04N5/23238 , H04N5/76 , H04N9/67 , H04N13/243 , H04N19/136 , H04N19/44
摘要： Innovations in reconstruction and rendering of panoramic video are described. For example, a view-dependent operation controller of a panoramic video playback system receives an indication of a view direction for an application and, based at least in part on the view direction, identifies a section of a picture of panoramic video in an input projection. The view-dependent operation controller limits operations of a color converter, video decoder, and/or streaming controller to the identified section. In this way, the panoramic video playback system can avoid performing operations to reconstruct sections of the picture of panoramic video that will not be viewed. As another example, a mapper of a panoramic video playback system re-projects at least some sample values in an input flat projection towards a center location for a view direction, producing an output flat projection, which an application can use to generate one or more screen projections.

5. 发明申请

US20180152682A1 RE-PROJECTING FLAT PROJECTIONS OF PICTURES OF PANORAMIC VIDEO FOR RENDERING BY APPLICATION 审中-公开
公开(公告)号：US20180152682A1
公开(公告)日：2018-05-31
申请号：US15384265
申请日：2016-12-19
申请人： Microsoft Technology Licensing, LLC
发明人： Matthew Wozniak , Bakkama Srinath Reddy , Vladislav Alexandrov , David H. Mebane , Dibyajyoti Roy , Shyam Sadhwani
IPC分类号： H04N9/31 , H04N9/64 , H04N19/44
CPC分类号： H04N9/3185 , G06T3/0043 , H04N9/646 , H04N9/67 , H04N19/44 , H04N19/597 , H04N19/85
摘要： Innovations in reconstruction and rendering of panoramic video are described. For example, a view-dependent operation controller of a panoramic video playback system receives an indication of a view direction for an application and, based at least in part on the view direction, identifies a section of a picture of panoramic video in an input projection. The view-dependent operation controller limits operations of a color converter, video decoder, and/or streaming controller to the identified section. In this way, the panoramic video playback system can avoid performing operations to reconstruct sections of the picture of panoramic video that will not be viewed. As another example, a mapper of a panoramic video playback system re-projects at least some sample values in an input flat projection towards a center location for a view direction, producing an output flat projection, which an application can use to generate one or more screen projections.

6. 发明申请

US20160212054A1 Multiple Protocol Media Streaming 审中-公开
标题翻译：多协议媒体流
公开(公告)号：US20160212054A1
公开(公告)日：2016-07-21
申请号：US15001225
申请日：2016-01-19
申请人： Microsoft Technology Licensing, LLC
发明人： Matthew C. Howard , David H. Mebane
IPC分类号： H04L12/825 , H04L29/06
CPC分类号： H04L47/25 , H04L47/30 , H04L65/1083 , H04L65/4069 , H04L65/604 , H04L65/608 , H04L65/80
摘要： In one example, a streaming media player may select at least one media stream from a plurality media streams based on network conditions. A communication interface may receive a chosen media stream having a chosen bitrate and an alternate media stream having an alternate bitrate on a communication network and configured to determine a bandwidth average for the communication network. An adaptive streaming selector may switch from the chosen media stream to the alternate media stream based in part on the bandwidth average. A media pipeline may render the chosen media stream into a chosen media presentation and the alternate media stream into an alternate media presentation. An output device may present the chosen media presentation and the alternate media presentation to a user.
摘要翻译：在一个示例中，流媒体播放器可以基于网络条件从多个媒体流中选择至少一个媒体流。通信接口可以在通信网络上接收具有选择的比特率的选择的媒体流和具有替代比特率的备用媒体流，并且被配置为确定通信网络的带宽平均。部分基于带宽平均值，自适应流选择器可以从选择的媒体流切换到替代媒体流。媒体流水线可以将所选择的媒体流呈现为所选择的媒体呈现，并且替代媒体流进入替代媒体呈现。输出设备可以向用户呈现所选择的媒体呈现和替代媒体呈现。

7. 发明授权

US10574955B2 Re-projecting flat projections of pictures of panoramic video for rendering by application 有权
公开(公告)号：US10574955B2
公开(公告)日：2020-02-25
申请号：US16269230
申请日：2019-02-06
申请人： Microsoft Technology Licensing, LLC
发明人： Matthew Wozniak , Bakkama Srinath Reddy , Vladislav Alexandrov , David H. Mebane , Dibyajyoti Roy , Shyam Sadhwani
IPC分类号： H04N19/597 , H04N9/31 , G06T3/00 , H04N19/85 , H04N19/44 , H04N9/64 , H04N9/67
摘要： Innovations in reconstruction and rendering of panoramic video are described. For example, a view-dependent operation controller of a panoramic video playback system receives an indication of a view direction for an application and, based at least in part on the view direction, identifies a section of a picture of panoramic video in an input projection. The view-dependent operation controller limits operations of a color converter, video decoder, and/or streaming controller to the identified section. In this way, the panoramic video playback system can avoid performing operations to reconstruct sections of the picture of panoramic video that will not be viewed. As another example, a mapper of a panoramic video playback system re-projects at least some sample values in an input flat projection towards a center location for a view direction, producing an output flat projection, which an application can use to generate one or more screen projections.

8. 发明授权

US10244215B2 Re-projecting flat projections of pictures of panoramic video for rendering by application 有权
公开(公告)号：US10244215B2
公开(公告)日：2019-03-26
申请号：US15384265
申请日：2016-12-19
申请人： Microsoft Technology Licensing, LLC
发明人： Matthew Wozniak , Bakkama Srinath Reddy , Vladislav Alexandrov , David H. Mebane , Dibyajyoti Roy , Shyam Sadhwani
IPC分类号： H04N13/00 , H04N9/31 , H04N19/44 , H04N9/64 , G06T3/00 , H04N19/597 , H04N19/85 , H04N9/67
摘要： Innovations in reconstruction and rendering of panoramic video are described. For example, a view-dependent operation controller of a panoramic video playback system receives an indication of a view direction for an application and, based at least in part on the view direction, identifies a section of a picture of panoramic video in an input projection. The view-dependent operation controller limits operations of a color converter, video decoder, and/or streaming controller to the identified section. In this way, the panoramic video playback system can avoid performing operations to reconstruct sections of the picture of panoramic video that will not be viewed. As another example, a mapper of a panoramic video playback system re-projects at least some sample values in an input flat projection towards a center location for a view direction, producing an output flat projection, which an application can use to generate one or more screen projections.

9. 发明申请

US20180174619A1 INTERFACE FOR APPLICATION-SPECIFIED PLAYBACK OF PANORAMIC VIDEO 审中-公开
公开(公告)号：US20180174619A1
公开(公告)日：2018-06-21
申请号：US15384210
申请日：2016-12-19
申请人： Microsoft Technology Licensing, LLC
发明人： Dibyajyoti Roy , Vladislav Alexandrov , David H. Mebane , Aaron Oneal , Matthew Wozniak , Bakkama Srinath Reddy , Shyam Sadhwani
IPC分类号： G11B27/10 , H04N5/232 , G11B20/00 , H04N21/81 , H04N21/472 , H04N21/44 , H04N21/4402
CPC分类号： G11B27/102 , H04N5/23238 , H04N13/00 , H04N21/21805 , H04N21/44004 , H04N21/440218 , H04N21/440245 , H04N21/47217 , H04N21/6587 , H04N21/816
摘要： Innovations in reconstruction and rendering of panoramic video are described, including the use of a platform rendering engine to provide a screen projection based on a view direction specified for an application through an interface. For example, based at least in part on the view direction specified for the application, at least a section of panoramic video in an input projection is identified. At least some of sample values of the at least a section of the picture of panoramic video in the input projection are mapped to a screen projection. The screen projection is output for display to a buffer for the application. Thus, an application may use panoramic video, including updating a view direction, without itself having to render a screen projection for the panoramic video.

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