Papers for

photogrammetry teams

Papers whose findings have a practical use for this group, as judged from the abstract. Open a paper to read what it means in practice.

Deep learning improves camera location estimates for 3D reconstruction

Learning Global Camera Poses from Noisy View-Graphs for Structure from Motion

Abstract: Camera pose estimation is a key step in 3D reconstruction and view-synthesis pipelines. We present a deep, global Structure-from-Motion framework based on learned view-graph aggregation. Our method employs a permutation-equivariant, edge-conditioned graph neural network that takes noisy pairwise relative poses as input and outputs globally consistent camera extrinsics. The network is trained without ground-truth supervision, relying solely on a relative-pose consistency objective. This is followed by 3D point triangulation and robust bundle adjustment. Our approach is efficient, scalable to more than a thousand images, and robust to graph density. We evaluate our method on MegaDepth, 1DSfM, Strecha, and BlendedMVS. These experiments demonstrate that our method achieves superior rotation and translation accuracy compared to deep track-centric methods while registering more images across many scenes, and competitive results compared to state-of-the-art classical pipelines, while being much faster.

Tue 8 SeptComputer Vision and Pattern Recognition
The gist
Estimating camera positions is vital for making 3D models from photos, but noisy data makes this tricky. The authors use a special deep learning method that looks at the relationships between many camera pairs and figures out consistent camera positions globally. They train their method without needing exact camera positions beforehand, only by checking how consistent the relative camera positions are. Their system works well even with lots of images and outperforms some existing methods in accuracy and speed.
Open 2609.09491v1