论文标题
使用扩展功能减少运动的结构漂移
Reducing Drift in Structure From Motion Using Extended Features
论文作者
论文摘要
低频长距离错误(漂移)是运动中3D结构中的一个地方性问题,通常会妨碍场景的合理重建。在本文中,我们提出了一种通过使用扩展的结构特征(例如平面和消失点)来大大降低规模和位置漂移的方法。与传统的功能匹配不同,我们的扩展功能能够跨越非重叠的输入图像,因此可以在重建的规模和形状上提供远程约束。我们将这些功能作为其他约束添加到运动算法的最先进的全局结构中,并证明附加的约束可以重建特别容易发生的序列,例如较长的低视野视频视频,而无需惯性测量。此外,我们通过评估合成数据集来分析这些约束的漂移功能。我们的结构特征能够显着减少包含长跨度人造结构的场景的漂移,例如一排窗户或平面建筑物的立面。
Low-frequency long-range errors (drift) are an endemic problem in 3D structure from motion, and can often hamper reasonable reconstructions of the scene. In this paper, we present a method to dramatically reduce scale and positional drift by using extended structural features such as planes and vanishing points. Unlike traditional feature matches, our extended features are able to span non-overlapping input images, and hence provide long-range constraints on the scale and shape of the reconstruction. We add these features as additional constraints to a state-of-the-art global structure from motion algorithm and demonstrate that the added constraints enable the reconstruction of particularly drift-prone sequences such as long, low field-of-view videos without inertial measurements. Additionally, we provide an analysis of the drift-reducing capabilities of these constraints by evaluating on a synthetic dataset. Our structural features are able to significantly reduce drift for scenes that contain long-spanning man-made structures, such as aligned rows of windows or planar building facades.