In 3D computer vision, we are currently witnessing a remarkable renaissance of interest in structure-from-motion (SfM), i.e. estimating camera poses and 3D geometry from a collection of images. Of course, SfM was never gone. Rather, solutions based on feature-matching and traditional multi-view geometry matured to a state about 10 years ago that turned them into reliable off-the-shelf components for various 3D vision tasks. Still, traditional SfM approaches are most reliable when certain conditions are met. For example, reconstructing very few or a huge amount of images can be challenging. The talk will investigate how learning-based formulations of SfM can address these challenges. We will focus on scene coordinate regression, an implicit scene representation, that naturally avoids the explosion of complexity inherent to image-to-image matching when the number of images is large. The talk culminates in the presentation of ACEZero, a self-supervised scene coordinate regression pipeline, that is able to reconstruct 10.000 images in reasonable time.
Eric Brachmann is a senior staff scientist at Niantic Spatial with extensive experience at the intersection of machine learning and computer vision, particularly in 3D vision. His work focuses on building and scaling the Visual Positioning System (VPS), with research interests spanning visual relocalization, pose estimation, robust optimization, end-to-end learning, and feature matching. He regularly publishes in top-tier computer vision conferences and is an active member of the community, serving as area chair and reviewer—receiving multiple outstanding reviewer recognitions. He has also co-organized several tutorials and workshops on visual relocalization and object pose estimation. Prior to his current role, he contributed to both academic and industry-led efforts in spatial computing and 3D vision research.
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What? | Pushing the Boundaries of Structure-from-Motion with Machine Learning |
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Who? | Eric Brachmann, Senior Staff Scientist at Niantic Spatial |
When? | July 16th 2024 @ 4pm |
Where? | Zoom |
Registration | meetup event-site |