DUSt3R/MASt3R: Revolutionizing 3D Vision with Geometric Foundation Models Introduction to Geometric Foundation Models Geometric foundation models represent a groundbreaking approach to 3D computer vision that fundamentally changes how machines perceive and reconstruct our three-dimensional world. Traditional 3D reconstruction methods required specialized equipment, complex calibration processes, and constrained environments. DUSt3R and its successors eliminate these barriers by enabling dense 3D reconstruction from ordinary 2D images without prior camera calibration or viewpoint information. These models achieve what was previously impossible: reconstructing complete 3D scenes from arbitrary image collections – whether ordered sequences from videos or completely unordered photo sets. By treating 3D …