Online video synthesis for removing occluding objects using multiple uncalibrated cameras via plane sweep algorithm

Takahide Hosokawa, Songkran Jarusirisawad, H. Saito
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引用次数: 6

Abstract

We present an online rendering system which removes occluding objects in front of the objective scene from an input video using multiple videos taken with multiple cameras. To obtain geometrical relations between all cameras, we use projective grid space (PGS) defined by epipolar geometry between two basis cameras. Then we apply plane-sweep algorithm for generating depth image in the input camera. By excluding the area of occluding objects from the volume of the sweeping planes, we can generate the depthmap without the occluding objects. Using this depthmap, we can render the image without obstacles from all the multiple camera videos. Since we use graphics processing unit (GPU) for computation, we can achieve realtime online rendering using a normal spec PC and multiple USB cameras.
通过平面扫描算法,使用多个未校准的摄像机进行在线视频合成,以去除遮挡物体
我们提出了一个在线渲染系统,该系统使用多个摄像机拍摄的多个视频从输入视频中去除目标场景前面的遮挡物体。为了获得所有相机之间的几何关系,我们在两个基相机之间使用由极极几何定义的射影网格空间(PGS)。然后在输入摄像机中应用平面扫描算法生成深度图像。通过从扫描平面的体积中排除遮挡物体的面积,我们可以生成没有遮挡物体的深度图。使用这个深度图,我们可以从所有的多个摄像机视频中渲染没有障碍的图像。由于我们使用图形处理单元(GPU)进行计算,我们可以使用普通规格的PC和多个USB摄像头实现实时在线渲染。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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