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1. 发明申请

WO2011030234A1 RECOMMENDED DEPTH VALUE FOR OVERLAYING A GRAPHICS OBJECT ON THREE-DIMENSIONAL VIDEO 审中-公开
标题翻译：在三维视频上覆盖图形对象的推荐深度值
公开(公告)号：WO2011030234A1
公开(公告)日：2011-03-17
申请号：PCT/IB2010/052664
申请日：2010-06-15
申请人： NDS LIMITED , MURRAY, Kevin, A , PARNALL, Simon, John , TAYLOR, Ray , WALKER, James, Geoffrey
发明人： MURRAY, Kevin, A , PARNALL, Simon, John , TAYLOR, Ray , WALKER, James, Geoffrey
IPC分类号： H04N5/278 , H04N13/00 , G06T7/00
CPC分类号： G06T7/593 , G06T2207/10012 , H04N5/278 , H04N13/10 , H04N13/293 , H04N13/361
摘要： A method of generating a recommended depth value for use in displaying a graphics item over a three dimensional video is described. The method includes at a headend: receiving a three dimensional video including video frames; analyzing a sequence of said video frames in turn to produce a sequence of depth maps, each depth map in the sequence of depth maps being associated with timing data relating that depth map to a corresponding video frame in the sequence of video frames, each depth map including depth values, each depth value representing a depth of a pixel location in its corresponding video frame; selecting a region of depth maps in the sequence of depth maps; analyzing said region of the depth maps in the sequence of depth maps to identify a furthest forward depth value for said region in the sequence of depth maps; and transmitting the furthest forward depth value as the recommended depth value for the region to a display device and region information describing the region.
摘要翻译：描述了一种生成用于在三维视频上显示图形项目的推荐深度值的方法。该方法包括头端：接收包括视频帧的三维视频; 依次分析所述视频帧的序列以产生一系列深度图，深度图序列中的每个深度图与将该深度图与视频帧序列中的对应视频帧相关联的定时数据相关联，每个深度图包括深度值，每个深度值表示其对应视频帧中的像素位置的深度; 选择深度图序列中的深度图区域; 在深度图序列中分析深度图的所述区域以识别深度图序列中的所述区域的最远的前进深度值; 并将最远的前进深度值作为区域的推荐深度值发送到显示设备和描述该区域的区域信息。

2. 发明申请

WO2011030236A1 DYNAMICALLY CONSTRUCTING A BROADCAST MULTIPLEX 审中-公开
标题翻译：动态构建广播多媒体
公开(公告)号：WO2011030236A1
公开(公告)日：2011-03-17
申请号：PCT/IB2010/052960
申请日：2010-06-29
申请人： NDS LIMITED , ASHLEY, Alex , RAI, Pete , SMITH, Trevor , WALKER, James, Geoffrey , PARNALL, Simon, John , TAYLOR, Ray
发明人： ASHLEY, Alex , RAI, Pete , SMITH, Trevor , WALKER, James, Geoffrey , PARNALL, Simon, John , TAYLOR, Ray
IPC分类号： H04N7/24 , H04L12/56
CPC分类号： H04N21/4385 , H04N21/234327 , H04N21/23608 , H04N21/23655 , H04N21/2389
摘要： A method and apparatus for dynamically constructing a broadcast multiplex are described. The method includes: receiving metadata associated with a first plurality of events on a plurality of source channels, the metadata including, at least, scheduling metadata; determining, on the basis of a rule-set applied to the metadata, whether events of the first plurality of events are to be included in the multiplex, thereby producing a second plurality of events to be included in the multiplex; for each one event of the second plurality of events, assigning a multiplex priority to the one event, the multiplex priority being a priority the one event is to be assigned in the multiplex in case the one event contends for space in the multiplex with a second event of the second plurality of events; copying events from the second plurality of events into the multiplex in dependence on the multiplex priorities of events in the second plurality of events; and broadcasting the multiplex. Related systems, apparatus, and methods are also described.
摘要翻译：描述用于动态构建广播多路复用的方法和装置。所述方法包括：接收与多个源信道上的第一多个事件相关联的元数据，所述元数据至少包括调度元数据; 基于应用于所述元数据的规则集，确定所述第一多个事件的事件是否将被包括在所述多路复用中，从而产生要被包括在所述多路复用中的第二多个事件; 对于所述第二多个事件的每个事件，对所述一个事件分配多路复用优先级，所述多路复用优先级是所述多路复用中的一个事件要被分配的优先级，第二次事件的事件; 根据第二多个事件中的事件的多重优先级将事件从第二多个事件复制到多路复用中; 并广播多路复用。还描述了相关系统，装置和方法。

3. 发明申请

WO2008020171A2 CONTROLLED METADATA REVELATION 审中-公开
标题翻译：控制元数据迁移
公开(公告)号：WO2008020171A2
公开(公告)日：2008-02-21
申请号：PCT/GB2007/002997
申请日：2007-08-07
申请人： NDS LIMITED , ASHBY, Stuart, P. , DAVIES, Colin, John , PARNALL, Simon, John , WALKER, James, Geoffrey , WHITE, David, John
发明人： ASHBY, Stuart, P. , DAVIES, Colin, John , PARNALL, Simon, John , WALKER, James, Geoffrey , WHITE, David, John
CPC分类号： H04N21/435 , H04N21/235 , H04N21/4307 , H04N21/4545 , H04N21/84
摘要： A method of controlling revelation of one or more metadata items is disclosed. Each of the one or more metadata items is associated with one or more parts of an audio-visual data stream (101). The method comprises: for a given one or more parts (103,105) of the audio-visual data stream (101), revealing one or more metadata items (113,115,117) associated with the given one or more parts (103,105) of the audio-visual data stream (101) only after the given one or more parts (103,105) of the audio-visual data stream (101) have been accessed.
摘要翻译：公开了一种控制一个或多个元数据项目的启示的方法。一个或多个元数据项中的每一个与视听数据流（101）的一个或多个部分相关联。该方法包括：对于视听数据流（101）的给定一个或多个部分（103,105），显示与该视听数据流的给定一个或多个部分（103,105）相关联的一个或多个元数据项目（113,115,117）数据流（101）仅在视听数据流（101）的给定一个或多个部分（103,105）被访问之后。

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