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31. 发明授权

US10721530B2 Providing tile video streams to a client 有权
公开(公告)号：US10721530B2
公开(公告)日：2020-07-21
申请号：US14908024
申请日：2014-07-28
申请人： KONINKLIJKE KPN N.V.
发明人： Ray Van Brandenburg , Emmanuel Thomas , Mattijs Oskar Van Deventer
IPC分类号： H04N21/4728 , H04N21/6587 , H04N21/234 , H04N21/262 , H04N21/643 , H04N21/235 , H04N21/8358 , H04N21/8547
摘要： A method is described for providing one or more tile streams to a client device for rendering a region-of-interest (ROI), wherein said ROI defines a region of a tile representation of a source video and wherein said method comprises: rendering a region-of-interest (ROI) video stream comprising a ROI of said source video; receiving ROI position information of at least one frame of said ROI video stream; and, receiving one or more tile streams that are requested the basis of said ROI position information and a spatial manifest file, said spatial manifest file defining one or more tile representations of said source video, a tile representation comprising one or more tile identifiers for identifying one or more tile streams and a tile position information defining the spatial position of said tile streams.

32. 发明授权

US10715843B2 Forming one or more tile streams on the basis of one or more video streams 有权
公开(公告)号：US10715843B2
公开(公告)日：2020-07-14
申请号：US15752559
申请日：2016-08-19
申请人： Koninklijke KPN N.V.
发明人： Ray Van Brandenburg , Emmanuel Thomas , Mattijs Oskar Van Deventer
IPC分类号： H04N7/173 , H04N21/235 , H04N21/2343 , H04N21/262 , H04N21/845 , H04N21/854 , H04N21/231 , H04N21/437 , H04N21/858
摘要： Methods and systems are described for forming one or more tile streams comprising: providing media data of at least one composite video stream to the input of at least one encoder, the media data of said composite video stream representing video frames comprising an image region having one or more subregions, each of said one or more subregions comprising visual content of one of said one or more video streams; providing encoder information to said encoder for configuring said encoder to generate encoded media data representing tiled video frames, a tile in said tiled video frames matching at least one of said one or more subregions; encoding media data of said composite video stream, wherein media data associated with a subregion of a video frame are encoded into independently encoded media data that have no spatial decoding dependency on media data of other subregions in said video frame, said independently encoded media data forming a tile of a tiled video frame, preferably said tile being arranged in said image region on the basis of a tile grid; and, storing said encoded media data as one or more tile streams on a storage medium, preferably on a storage medium of one or more network nodes, a tile stream comprising media data of at least one tile and tile position information for signaling a decoder to decode the media data of said tile stream into tiled video frames comprising a tile at a position as indicated by the tile position information.

33. 发明授权

US10694192B2 HEVC-tiled video streaming 有权
公开(公告)号：US10694192B2
公开(公告)日：2020-06-23
申请号：US15318619
申请日：2015-06-26
申请人： Koninklijke KPN N.V.
发明人： Emmanuel Thomas , Ray Van Brandenburg
IPC分类号： H04N19/167 , H04N19/119 , H04L29/06 , H04N19/176 , H04N21/433 , H04N21/437 , H04N21/81 , H04N21/845 , H04N21/854 , H04N21/858 , H03M7/30 , H04L29/08 , H04N21/2343 , H04N21/6547
摘要： A method is described of streaming HEVC-tiled video data to a client device comprising: providing said client device with a spatial manifest file comprising one or more spatial segments identifiers for locating one or more delivery nodes configured for delivering video data associated with a spatial segment identified by at least one of said one or more spatial segments identifiers, preferably (part of) one or more URLs, to said client device, a spatial segment being associated with HEVC-tiled video data comprising a subset of HEVC tiles of a HEVC-tiled (panorama) video stream; and, selecting a spatial segment identifier in said spatial manifest file for requesting a delivery node to deliver at least part of the video data of a spatial segment as a HEVC-tiled video stream to the client device.

34. 发明申请

US20180295400A1 Enhancing A Region Of Interest In Video Frames Of A Video Stream 审中-公开
公开(公告)号：US20180295400A1
公开(公告)日：2018-10-11
申请号：US15765193
申请日：2016-10-07
申请人： Koninklijke KPN N.V.
发明人： Emmanuel Thomas , Ray Van Brandenburg , Mattijs Oskar Van Deventer
IPC分类号： H04N21/2343 , H04N19/167 , H04N19/187 , H04N19/30 , H04N21/854
摘要： A method for enhancing a region of interest in video frames of a video stream is described. The method includes receiving media data defining base video frames of at least one base stream, said base stream being associated with one or more enhancement tile streams, an enhancement tile stream comprising media data defining tiled video frames comprising a tile, said tile comprising media data for enhancing visual content in a subregion of the image region of the base video frames; requesting media data of one or more enhancement tile streams, preferably one or more HEVC enhancement tile streams, the one or more enhancement tile streams being associated with media data for enhancing visual content in the at least one region of interest; generating base video frames on the basis of media data of the at least one base stream and generating tiled video frames on the basis of media data of the one or more enhancement tile streams, the tiled video frames comprising one or more tiles forming visual content the at least one region of interest; and, replacing or blending at least part of the visual content of said at least one region of interest in the video frames of said base stream with at least part of said enhanced visual content of the tiled video frames.

35. 发明申请

US20150334153A1 Low-Latency Streaming 审中-公开
标题翻译：低延迟流
公开(公告)号：US20150334153A1
公开(公告)日：2015-11-19
申请号：US14653849
申请日：2013-12-30
申请人： KONINKLIJKE KPN N.V.
发明人： Arian Koster , Dolf Schinkel , Ray Van Brandenburg , Emmanuel Thomas , Mattijs Oskar Van Deventer
IPC分类号： H04L29/06 , G06F17/30 , H04L29/08
CPC分类号： H04L43/08 , G06F16/951 , H04L43/0829 , H04L43/0852 , H04L65/1059 , H04L65/4069 , H04L65/604 , H04L65/608 , H04L65/80 , H04L67/32
摘要： Method and systems for enabling low-latency streaming of segments over at least one network to a client are described wherein said client is configured to request and receive segments from at least one server on the basis of a manifest file. Said method comprises: collecting quality of service information experienced by said client in at least a part of said network and storing said quality of service information in a quality database in said network; sending at least part of said quality of service information to said content processing device; determining on the basis of said at least part of said quality of service information one or more configuration parameters for a buffer, preferably a play-out buffer; and/or, for a segment request function in said content processing device; and, configuring said buffer and/or, said segment request function in accordance with said configuration parameters.
摘要翻译：描述了用于使客户端的至少一个网络上的片段的低延迟流传输的方法和系统，其中所述客户端被配置为基于清单文件从至少一个服务器请求和接收段。所述方法包括：在所述网络的至少一部分中收集所述客户端所经历的服务质量信息，并将所述服务质量信息存储在所述网络中的质量数据库中; 将所述服务质量信息的至少一部分发送到所述内容处理设备; 基于所述服务质量信息的所述至少一部分确定用于缓冲器，优选播出缓冲器的一个或多个配置参数; 和/或对于所述内容处理设备中的段请求功能; 以及根据所述配置参数配置所述缓冲器和/或所述片段请求功能。

36. 发明授权

US10805614B2 Processing spherical video data on the basis of a region of interest 有权
公开(公告)号：US10805614B2
公开(公告)日：2020-10-13
申请号：US16338936
申请日：2017-10-12
申请人： Koninklijke KPN N.V.
发明人： Lucia D'Acunto , Emmanuel Thomas , Mattijs Oskar Van Deventer , Simon Gunkel
IPC分类号： H04N19/167 , H04N21/81 , H04N21/218 , H04N21/4728 , H04N21/262 , H04N21/858 , H04N21/845 , H04N21/2343 , H04N19/176 , H04N19/23 , H04L29/06
摘要： A method for processing spherical video data is described comprising: receiving region of interest (ROI) information associated with a ROI in a spherical representation of video data, the ROI information including a spherical ROI coordinate associated with a position of the ROI; receiving a manifest file comprising one or more tile stream identifiers for identifying one or more tile streams, each tile stream comprising spherical video data of a tile on the spherical surface, each tile defining a subpart on the spherical surface, the manifest file further comprising spatial description information for signaling the client apparatus information on the position of the tiles on the spherical surface; receiving projection information for signaling the client apparatus about the type of projection that is used for projection of the spherical video data onto a planar surface; and, receiving and/or generating boundary information for defining the boundary of the ROI on the basis of the spherical ROI coordinate, and, using the ROI area for selecting one or more tile streams on the basis of the spatial description information and the projection information, wherein each of the selected tile streams defines a tile on the sphere that overlaps with the ROI area.

37. 发明授权

US10788888B2 Capturing and rendering information involving a virtual environment 有权
公开(公告)号：US10788888B2
公开(公告)日：2020-09-29
申请号：US16306432
申请日：2017-06-06
申请人： Koninklijke KPN N.V. , Nederlandse Organisatie Voor Toegepast-Natuuwetenschappelijk Onderzoek TNO
发明人： Martin Prins , Hans Maarten Stokking , Emmanuel Thomas , Omar Aziz Niamut , Mattijs Oskar Van Deventer
IPC分类号： G06F3/01 , G06T19/00 , G06F3/03 , H04N13/117 , H04N13/366
摘要： A method of facilitating capturing visual information at a first location (1) for display at a second location (2) is disclosed. At the first location, a virtual reality device (11) can be configured to render visual information representing a virtual environment, and at least one capturing device (12) can be configured to capture information representing a real environment comprising the virtual reality device (11). At the second location, at least one monitor (21) can be configured to render the information captured by the at least one capturing device (12). The method comprises determining an orientation of at least one capturing device (12) relative to the virtual reality device (11), and providing in the virtual environment a visual indication of said orientation.

38. 发明授权

US10674185B2 Enhancing a region of interest in video frames of a video stream 审中-公开
公开(公告)号：US10674185B2
公开(公告)日：2020-06-02
申请号：US15765193
申请日：2016-10-07
申请人： Koninklijke KPN N.V.
发明人： Emmanuel Thomas , Ray Van Brandenburg , Mattijs Oskar Van Deventer
IPC分类号： H04N21/2343 , H04N21/854 , H04N19/30 , H04N19/187 , H04N19/167
摘要： A method for enhancing a region of interest in video frames of a video stream is described. The method includes receiving media data defining base video frames of at least one base stream, said base stream being associated with one or more enhancement tile streams, an enhancement tile stream comprising media data defining tiled video frames comprising a tile, said tile comprising media data for enhancing visual content in a subregion of the image region of the base video frames; requesting media data of one or more enhancement tile streams, preferably one or more HEVC enhancement tile streams, the one or more enhancement tile streams being associated with media data for enhancing visual content in the at least one region of interest; generating base video frames on the basis of media data of the at least one base stream and generating tiled video frames on the basis of media data of the one or more enhancement tile streams, the tiled video frames comprising one or more tiles forming visual content the at least one region of interest; and, replacing or blending at least part of the visual content of said at least one region of interest in the video frames of said base stream with at least part of said enhanced visual content of the tiled video frames.

39. 发明申请

US20170118540A1 Determining A Region Of Interest On The Basis Of A HEVC-Tiled Video Stream 审中-公开
公开(公告)号：US20170118540A1
公开(公告)日：2017-04-27
申请号：US15318631
申请日：2015-06-26
申请人： Koninklijke KPN N.V. , Nederlandse Organisatie Voor Toegepast-Natuurweten schappelijk Onderzoek TNO
发明人： Emmanuel Thomas , Ray Van Brandenburg , Mattijs Oskar Van Deventer
IPC分类号： H04N21/858 , H04N21/854 , H04N21/845 , H04N21/4728 , H04N21/2343
CPC分类号： H04N21/8586 , H04N19/119 , H04N19/167 , H04N19/174 , H04N19/85 , H04N21/2343 , H04N21/234327 , H04N21/234363 , H04N21/440263 , H04N21/4728 , H04N21/6587 , H04N21/8455 , H04N21/85406
摘要： A method is described for determining a region-of-interest (ROI) for a client device on the basis of at least one HEVC-tiled (panorama) video stream wherein the method comprises: receiving a ROI video stream for rendering a first ROI defining a first sub-region within the full image region of said HEVC-tiled video stream, the positions of HEVC tiles in said HEVC-tiled panorama video being defined by tile position information; providing ROI position information associated with at least one video frame of said ROI video stream, said ROI position information comprising at least first position of said first ROI; identifying one or more HEVC tiles of said HEVC-tiled video stream on the basis of said ROI position information and said tile position information, preferably one or more HEVC tiles that overlap with said first ROI; and, requesting video data associated with said one or more identified HEVC tiles for rendering a second ROI defining a second sub-region within the full image region of said HEVC-tiled video stream.

40. 发明授权

US11284124B2 Spatially tiled omnidirectional video streaming 有权
公开(公告)号：US11284124B2
公开(公告)日：2022-03-22
申请号：US16302500
申请日：2017-05-24
申请人： Koninklijke KPN N.V.
发明人： Lucia D'Acunto , Emmanuel Thomas , Mattijs Oskar Van Deventer , Ray Van Brandenburg , Arjen Veenhuizen
IPC分类号： H04N21/218 , H04N21/845 , H04N21/43 , H04N21/2343 , H04N21/262 , H04N19/167 , H04L65/65 , H04N21/6587
摘要： A method is described for processing an omnidirectional video by a client device, said omnidirectional video being associated with a 3D coordinate system for determining a spatial position of video data of said omnidirectional video on a curved surface, preferably a sphere, said method comprising: receiving a manifest file, the manifest file comprising a plurality of tile stream identifiers for identifying a plurality of tile streams, the tile streams comprising video frames having image views, whereby the image views of video frames of different tile streams cover different regions of a 2D projection of the omnidirectional video, a region defining a tile; selecting on the basis of spatial relation information in the manifest file and on the basis of a viewpoint of a user of the client device a first tile streams associated with a first resolution and a first tile position and a second tile stream associated with a second resolution and a second tile position, the second resolution being lower than the first resolution, wherein the spatial relation information defines for each tile a tile position and wherein the viewpoint defines a viewing direction of the user, tile position and the viewpoint being defined on the basis of coordinates of the 3D coordinate system.

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