Francis Engelmann Konstantinos Rematas Bastian Leibe Vittorio Ferrari From Points to Multi-Object 3D Reconstruction. 4588-4597 2021 CVPR https://openaccess.thecvf.com/content/CVPR2021/html/Engelmann_From_Points_to_Multi-Object_3D_Reconstruction_CVPR_2021_paper.html https://doi.org/10.1109/CVPR46437.2021.00456 conf/cvpr/2021 db/conf/cvpr/cvpr2021.html#EngelmannRLF21