arXiv Computer Vision By Jhacson Meza, Martin R. Oswald, Torsten Sattler

Benchmarking Efficient & Effective Camera Pose Estimation Strategies for Novel View Synthesis

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The paper introduces a benchmark for evaluating Structure-from-Motion (SfM) methods used in novel view synthesis (NVS) such as NeRFs and 3DGS. It compares classical SfM, which relies on local feature matches and bundle adjustment, with recent neural network approaches that regress camera parameters directly for faster but less accurate results. The study finds that reducing feature counts speeds up classical SfM without sacrificing pose accuracy, and that combining neural network initial estimates with classical refinement yields the best balance of efficiency and effectiveness.

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