Floating No More: Object-Ground Reconstruction from a Single Image

Figure 1. Our proposed ORG (Object Reconstruction with Ground) model simultaneously reconstructs a 3D object, estimates camera parameters, and models the object-ground relationship from a monocular image. During shadow and reflection generation, the prior depthbased object geometry estimation method can result in floating issue or an unnatural shadow on the ground, as demonstrated in red boxes. Our method, on the other hand, achieves significantly more realistic editing and generation, as shown in blue boxes.