Image-Based Rendering for Teleconference Systems
Image-Based Rendering for Teleconference Systems
复制标题
电话会议系统基于图像的渲染
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
O. Schreer
中科院分区：
文献类型：
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作者：
E. Cooke;P. Kauff;O. Schreer
为了在虚拟世界中获得基于图像的沉浸式存在，应该考虑两个重要因素：系统配置和多视图表示。我们提出了两个非敌手系统配置。第一个是众所周知的收敛宽基线设置，而第二个是我们研究所正在调查的一个独特的建议，它是基于一个平行的多个窄基线相机设置。在域中的多视图表示，我们引入了两个非冲突的表示，可以独立于所选择的系统配置，依赖于压缩或可扩展性是否是重要的整体系统来实现。然后，我们讨论了我们的实现一个基于图像的渲染系统的沉浸式电话会议应用程序，三个与会者满足周围的共享虚拟表。该系统采用宽基线配置，两个立体相机对捕获参考图像。该系统被设计为处理手势以及在一个或多个参考图像中被遮挡但在导出视图中需要的区域的合成。我们引入了一个置信图的概念，旨在表明，对于派生的图像，参考图像应该提供所需的纹理和视差信息的表面。
To obtain an image-based immersive presence in a virtual world, two important factors should be considered: system configuration and multiview representation. We present two non-adversary system configurations. The first is the well-known convergent wide-baseline set-up while the second is a unique proposal under investigation at our institute, which is based around a parallel multiple narrow-baseline camera set-up. In the domain of multiview representation we introduce two non-conflicting representations that can be implemented independent of the chosen system configuration, dependent on whether compression or scalability is important to the overall system. We then discuss our implementation of an image-based rendering system for an immersive teleconferencing application where three conferees meet around a shared virtual table. The system uses a wide-baseline configuration with two stereo camera pairs capturing the reference images. The system is designed to deal with hand gestures as well as the synthesis of areas occluded in one or more of the reference images but required in the derived view. We introduce the notion of a confidence map designed to indicate, for the derived image, which reference image should provide the required texture and disparity information for a surface.