专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2011121117A1 VIRTUAL CAMERA SYSTEM 审中-公开
标题翻译：虚拟相机系统
公开(公告)号：WO2011121117A1
公开(公告)日：2011-10-06
申请号：PCT/EP2011/055114
申请日：2011-04-01
申请人： IMEC , COENE, Paul , DE GEYTER, Johan , DE GREEF, Eddy , GEELEN, Bert , MASSCHELEIN, Bart , VANMEERBEECK, Geert , VERACHTERT, Wilfried
发明人： COENE, Paul , DE GEYTER, Johan , DE GREEF, Eddy , GEELEN, Bert , MASSCHELEIN, Bart , VANMEERBEECK, Geert , VERACHTERT, Wilfried
IPC分类号： G06T15/20
CPC分类号： G06T15/205 , G06T7/194 , G06T2207/30221
摘要： A virtual camera system comprises a plurality of physical cameras and a hardware setup running software to create virtual viewpoints for the virtual camera system. The position of the physical cameras is constrained, where the main constraint is the overlap between the physical cameras. The present invention provides a method for creating a virtual viewpoint of a plurality of images captured by the plurality of cameras, the images comprising current frames and previous frames. The method comprises creating background frames by combining a set of previous frames; creating a plurality of foreground masks by performing segmentation on the plurality of current frames, the segmentation comprising separating foreground objects from background objects using the created background frames; extracting the foreground objects by AND-ing the plurality of current frames with the created plurality of foreground masks; rendering the foreground objects by using a three dimensional depth-box constrained viewpoint interpolation algorithm on the plurality of current frames, the three dimensional depth box being constructed for each foreground object by exploiting information from the created foreground masks and positioning information of the foreground objects; rendering a view-dependent background image by performing homographic transformations on the created background frames; and creating the virtual viewpoint by superimposing the rendered foreground objects on the rendered background frame.
摘要翻译：虚拟相机系统包括多个物理相机和用于为虚拟相机系统创建虚拟视点的硬件设置运行软件。物理摄像机的位置受到限制，其中主要的约束是物理摄像机之间的重叠。本发明提供一种用于创建由多个摄像机捕获的多个图像的虚拟视点的方法，所述图像包括当前帧和先前帧。该方法包括通过组合一组先前帧来创建背景帧; 通过对所述多个当前帧执行分割来创建多个前景蒙版，所述分割包括使用所创建的背景帧将前景对象与背景对象分离; 通过与所创建的多个前景蒙版对多个当前帧进行AND操作来提取前景对象; 通过在多个当前帧上使用三维深度方框约束视点插值算法来渲染前景对象，通过利用来自所创建的前景蒙版的信息和前景对象的定位信息为每个前景对象构造三维深度框; 通过对所创建的背景帧执行同形变换来渲染依赖于视图的背景图像; 以及通过将渲染的前景对象叠加在所渲染的背景帧上来创建虚拟视点。

IPRDB

热门服务

关于我们

友情链接

联系方式