Geometrically Constrained Structure from Motion: Points on Planes
Geometrically Constrained Structure from Motion: Points on Planes
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DOI：
10.1007/3-540-49437-5_12
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发表时间：
1998-06
期刊：
影响因子：
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通讯作者：
R. Szeliski;P. Torr
中科院分区：
文献类型：
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作者：
R. Szeliski;P. Torr
运动恢复结构算法通常不使用外部几何约束，例如，某些点的共面性或与这些平面相关联的已知取向，直到最后的后处理阶段。在本文中，我们将展示如何将这样的几何约束，可以在重建过程中的早期，从而提高质量的估计。我们研究的方法包括在平面区域中产生额外的点匹配，直接从单应性计算基本矩阵，并将共面性和其他几何约束作为最终光束法平差阶段的一部分。我们的实验结果表明，重建的质量可以显着提高明智地使用几何约束。
Structure from motion algorithms typically do not use external geometric constraints, e.g., the coplanarity of certain points or known orientations associated with such planes, until a final post-processing stage. In this paper, we show how such geometric constraints can be incorporated early on in the reconstruction process, thereby improving the quality of the estimates. The approaches we study include hallucinating extra point matches in planar regions, computing fundamental matrices directly from homographies, and applying coplanarity and other geometric constraints as part of the final bundle adjustment stage. Our experimental results indicate that the quality of the reconstruction can be significantly improved by the judicious use of geometric constraints.