The Multiple-Camera 3-D Production Studio
The Multiple-Camera 3-D Production Studio
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DOI：
10.1109/tcsvt.2009.2017406
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发表时间：
2009-06-01
影响因子：
8.4
通讯作者：
Matsuyama, Takashi
中科院分区：
文献类型：
--
作者：
Starck, Jonathan;Maki, Atsuto;Matsuyama, Takashi
多摄像机系统作为一种捕捉和合成逼真的三维视频内容的手段，目前被广泛应用于研究和开发中。从文献中回顾了用于人体表演的3d制作的工作室系统，并报告了在两个研究实验室中开发原型工作室所获得的实践经验。系统设计应考虑工作室背景的前景抠图，照明的环境照明，相机采集硬件。，相机配置场景捕捉，并精确的几何和光度相机校准。为了量化不同约束条件对多相机系统几何精度和高质量视图合成要求的影响，本文进行了一项真值评估。由于相机高度的变化对表面能见度的影响有限，因此可能需要多台相机或主动视觉系统来进行广域捕获，而准确的重建需要25度的相机基线，在当前相机分辨率下可实现的精度为5-10毫米。精度本身是有限的，并且在显示分辨率与相机分辨率匹配的亚像素精度的视图合成中需要视图依赖渲染。两个原型工作室进行了对比，展示了3d内容制作的最先进技术。
Multiple-camera systems are currently widely used in research and development as a means of capturing and synthesizing realistic 3-D video content. Studio systems for 3-D production of human performance are reviewed from the literature, and the practical experience gained in developing prototype studios is reported across two research laboratories. System design should consider the studio backdrop for foreground matting, lighting for ambient illumination, camera acquisition hardware., the camera configuration for scene capture, and accurate geometric and photometric camera calibration. A ground-truth evaluation is performed to quantify the effect of different constraints on the multiple-camera system in terms of geometric accuracy and the requirement for high-quality view synthesis. As changing camera height has only a limited influence on surface visibility, multiple-camera sets or an active vision system may be required for wide area capture, and accurate reconstruction requires a camera baseline of 25 degrees, and the achievable accuracy is 5-10-mm at current camera resolutions. Accuracy is inherently limited, and view-dependent rendering is required for view synthesis with sub-pixel accuracy where display resolutions match camera resolutions. The two prototype studios are contrasted and state-of-the-art techniques for 3-D content production demonstrated.