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1. 发明申请

US20110267344A1 METHOD FOR ESTIMATING A POSE OF AN ARTICULATED OBJECT MODEL 有权
标题翻译：估计对象对象模型的方法
公开(公告)号：US20110267344A1
公开(公告)日：2011-11-03
申请号：US13096488
申请日：2011-04-28
申请人： Marcel Germann , Stephan Wuermlin Stadler , Richard Keiser , Remo Ziegler , Christoph Niederberger , Alexander Hornung , Marcus Gross
发明人： Marcel Germann , Stephan Wuermlin Stadler , Richard Keiser , Remo Ziegler , Christoph Niederberger , Alexander Hornung , Marcus Gross
IPC分类号： G06K9/00 , G06T17/00
CPC分类号： G06T15/205 , G06K9/00201 , G06T7/74 , G06T2207/10021 , G06T2207/30196
摘要： A computer-implemented method for estimating a pose of an articulated object model (4), wherein the articulated object model (4) is a computer based 3D model (1) of a real world object (14) observed by one or more source cameras (9), and wherein the pose of the articulated object model (4) is defined by the spatial location of joints (2) of the articulated object model (4), comprises the steps of obtaining a source image (10) from a video stream; processing the source image (10) to extract a source image segment (13); maintaining, in a database, a set of reference silhouettes, each being associated with an articulated object model (4) and a corresponding reference pose; comparing the source image segment (13) to the reference silhouettes and selecting reference silhouettes by taking into account, for each reference silhouette, a matching error that indicates how closely the reference silhouette matches the source image segment (13) and/or a coherence error that indicates how much the reference pose is consistent with the pose of the same real world object (14) as estimated from a preceding source image (10); retrieving the corresponding reference poses of the articulated object models (4); and computing an estimate of the pose of the articulated object model (4) from the reference poses of the selected reference silhouettes.
摘要翻译：一种用于估计铰接对象模型（4）的姿态的计算机实现的方法，其中所述铰接对象模型（4）是由一个或多个源摄像机观察到的真实世界对象（14）的基于计算机的3D模型（1）（9），并且其中所述铰接对象模型（4）的姿态由所述铰接对象模型（4）的关节（2）的空间位置定义，包括以下步骤：从视频获得源图像（10）流; 处理源图像（10）以提取源图像段（13）; 在数据库中维护一组参考轮廓，每个参考轮廓与铰接对象模型（4）和相应的参考姿势相关联; 将源图像段（13）与参考轮廓进行比较，并且通过考虑每个参考轮廓来选择参考轮廓，该匹配误差指示参考轮廓与源图像段（13）的匹配和/或相干误差其指示参考姿势与从先前的源图像（10）估计的相同的真实世界对象（14）的姿态一致; 检索关节对象模型（4）的相应参考姿势; 以及从所选择的参考轮廓的参考姿势中计算所述铰接对象模型（4）的姿态的估计。

2. 发明授权

US08830236B2 Method for estimating a pose of an articulated object model 有权
标题翻译：用于估计铰接对象模型的姿态的方法
公开(公告)号：US08830236B2
公开(公告)日：2014-09-09
申请号：US13096488
申请日：2011-04-28
申请人： Marcel Germann , Stephan Wuermlin Stadler , Richard Keiser , Remo Ziegler , Christoph Niederberger , Alexander Hornung , Marcus Gross
发明人： Marcel Germann , Stephan Wuermlin Stadler , Richard Keiser , Remo Ziegler , Christoph Niederberger , Alexander Hornung , Marcus Gross
IPC分类号： G06T17/00
CPC分类号： G06T15/205 , G06K9/00201 , G06T7/74 , G06T2207/10021 , G06T2207/30196
摘要： A computer-implemented method for estimating a pose of an articulated object model that is a computer based 3D model of a real world object observed by one or more source cameras, including the steps of obtaining a source image from a video stream; processing the source image to extract a source image segment maintaining, in a database, a set of reference silhouettes, each being associated with an articulated object model and a corresponding reference pose; comparing the source image segment to the reference silhouettes and selecting reference silhouettes by taking into account, for each reference silhouette, a matching error that indicates how closely the reference silhouette matches the source image segment retrieving the corresponding reference poses of the articulated object models; and computing an estimate of the pose of the articulated object model from the reference poses of the selected reference silhouettes.
摘要翻译：一种用于估计作为由一个或多个源摄像机观测到的真实世界对象的基于计算机的3D模型的关节对象模型的姿态的计算机实现的方法，包括以下步骤：从视频流获取源图像; 处理源图像以提取源图像段，其在数据库中保持一组参考轮廓，每个参考轮廓与铰接对象模型和相应的参考姿势相关联; 将源图像段与参考轮廓进行比较，并且通过考虑每个参考轮廓来选择参考轮廓，该匹配误差指示参考轮廓与检索相关联的对象模型的相应参考姿势的源图像段匹配的距离; 以及从所选择的参考轮廓的参考姿势计算所述铰接对象模型的姿态的估计。

3. 发明授权

US08355083B2 Image processing method and device for instant replay 有权
标题翻译：用于即时重放的图像处理方法和装置
公开(公告)号：US08355083B2
公开(公告)日：2013-01-15
申请号：US13189136
申请日：2011-07-22
申请人： Richard Keiser , Christoph Niederberger , Stephan Wuermlin Stadler , Remo Ziegler
发明人： Richard Keiser , Christoph Niederberger , Stephan Wuermlin Stadler , Remo Ziegler
IPC分类号： H04N5/44
CPC分类号： G06T13/00 , G06T15/205 , H04N5/2224
摘要： What is disclosed is a computer-implemented image-processing system and method for the automatic generation of video sequences that can be associated with a televised event. The methods can include the steps of: Defining a reference keyframe from a reference view from a source image sequence; From one or more keyframes, automatically computing one or more sets of virtual camera parameters; Generating a virtual camera flight path, which is described by a change of virtual camera parameters over time, and which defines a movement of a virtual camera and a corresponding change of a virtual view; and Rendering and storing a virtual video stream defined by the virtual camera flight path.
摘要翻译：公开的是用于自动生成可与电视转播事件相关联的视频序列的计算机实现的图像处理系统和方法。该方法可以包括以下步骤：从源图像序列从参考视图定义参考关键帧; 从一个或多个关键帧，自动计算一组或多组虚拟相机参数; 生成虚拟照相机飞行路径，其通过随时间变化的虚拟相机参数来描述，并且定义虚拟相机的移动和虚拟视图的相应变化; 并渲染并存储由虚拟照相机飞行路径定义的虚拟视频流。

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