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Cell-Based Approach for 3D Reconstruction from Incomplete Silhouettes

机译:基于单元的不完整轮廓3D重建方法

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Shape-from-silhouettes is a widely adopted approach to compute accurate 3D reconstructions of people or objects in a multi-camera environment. However, such algorithms are traditionally very sensitive to errors in the silhouettes due to imperfect foreground-background estimation or occluding objects appearing in front of the object of interest. We propose a novel algorithm that is able to still provide high quality reconstruction from incomplete silhouettes. At the core of the method is the partitioning of reconstruction space in cells, i.e. regions with uniform camera and silhouette coverage properties. A set of rules is proposed to iteratively add cells to the reconstruction based on their potential to explain discrepancies between silhouettes in different cameras. Experimental analysis shows significantly improved F1-scores over standard leave-M-out reconstruction techniques.
机译:“轮廓形状”是一种广泛采用的方法,用于在多相机环境中计算人或物体的精确3D重建。但是,由于不完善的前景背景估计或遮挡出现在感兴趣对象前面的对象,此类算法传统上对轮廓错误非常敏感。我们提出了一种新颖的算法,该算法仍可以从不完整的轮廓中提供高质量的重建。该方法的核心是在单元中(即具有统一摄像机和轮廓覆盖特性的区域)划分重建空间。提出了一组规则,以根据其潜力来迭代地将细胞添加到重建中,以解释不同相机中轮廓之间的差异。实验分析表明,与标准的M-out重建技术相比,F1得分得到了显着提高。

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