We present a technique for a complete 3D reconstruction of small objects moving in front of a textured background. It is a particular variation of multibody structure from motion, which specializes to two objects only. The scene is captured in several static configurations between which the relative pose of the two objects may change. We reconstruct every static configuration individually and segment the points locally by finding multiple poses of cameras that capture the scene's other configurations. Then, the local segmentation results are combined, and the reconstructions are merged into the resulting model of the scene. In experiments with real artifacts, we show that our approach has practical advantages when reconstructing 3D objects from all sides. In this setting, our method outperforms the state-of-the-art. We integrate our method into the state of the art 3D reconstruction pipeline COLMAP.

翻译：我们提出了一个在纹理背景前移动的小物体的完全三维重建技术。 这是多体结构从运动中的一种特殊的变异, 多体结构从运动专门到两个对象。 场景以若干静态配置捕捉, 两种物体的相对构成可能发生变化。 我们通过寻找摄像头的多重组合, 捕捉到场景的其他配置, 将每个静态配置和点段进行局部重建。 然后, 将局部分割结果合并在一起, 并将重建合并到场景的模型中。 在对真实的人工制品的实验中, 我们展示了我们的方法在从四面重建三维物体时具有实际的优势。 在这个设置中, 我们的方法超越了艺术的状态。 我们将我们的方法整合到 3D 重建管道 COLMAP 的状态中 。