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Topic 3D Reconstruction
3 articles
3DUnderstanding 3DGS, Part 2: How Is 3DGS Different from Photogrammetry?
3DGS and photogrammetry both reconstruct 3D scenes from multiple photos and share key SfM steps. This article explains where they diverge: photogrammetry continues to MVS, dense point clouds, meshes, and textures, while 3DGS optimizes Gaussians to reproduce photorealistic views.
3DUnderstanding 3DGS, Part 1: How Is 3DGS Different from Traditional 3D Modeling?
3DGS reconstructs real-world scenes with large numbers of Gaussians, while traditional 3D modeling uses meshes, textures, and materials. This article explains how the two approaches differ, where each works best, their limitations, and how 3DGS may change the way real spaces are digitized.
3DUnderstanding 3DGS, Part 0: How Do Photos Become 3D? — 170 Years of Trial and Error
How did photos become 3D? This article traces the evolution from 19th-century photogrammetry and stereo vision to SfM, MVS, NeRF, 3D Gaussian Splatting, and 2DGS, explaining how photography evolved from a recording medium into a tool for reconstructing and revisiting real-world spaces.
