UP-NeRF: Unconstrained Pose Prior-Free Neural Radiance Field

In this supplementary material, we provide additional implementation details (Appendix A) of our model and visualization of ablation studies (Appendix B) which are not included in our main paper. Our experiments are based on PyTorch [1] with GeForce RTX 3090 GPU. To follow the original implementation as possible, we have BARF experiments on the original code 3 with a few modifications for compatibility with the Phototourism dataset, and implementation of NeRF-W, BARF-W, and BARF-WD are based on [2] because there is no official NeRF-W code available.