# openMVG/openMVG

open Multiple View Geometry library. Basis for 3D computer vision and Structure from Motion.

Repository: https://github.com/openMVG/openMVG
Canonical: https://ross.abutalabs.com/products/openmvg
Language: C++
License: MPL-2.0
License Family: copyleft
Topics: geometry, computer-vision, openmvg, structure-from-motion, sfm, multiple-view-geometry, drone, photogrammetry, 3d-reconstruction
Last push: 2025-12-17T00:44:42+00:00

## Health v2 (maintenance only)
Score: 48/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 57, release rhythm 8, longevity 100
- inputs: {"age_days": 4954, "days_push": 260, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6542, forks 1719 (observed 2026-08-28T04:09:45.073398+00:00)

## What it is
OpenMVG is a C++ library for multiple view geometry and Structure from Motion (SfM), providing end-to-end 3D reconstruction from images. It ships as libraries, command-line binaries, and pipelines covering feature detection, matching, camera models, robust estimation, and scene reconstruction.

## Use cases
- reconstruct 3d scenes from photo collections
- run structure from motion on drone imagery
- estimate camera poses and triangulate 3d points from multiple views
- detect and match image features for photogrammetry
- export sparse reconstructions for dense mesh generation
- prototype multiple view geometry research algorithms

## When to choose
- you need a readable, well-tested C++ SfM pipeline you can extend
- you want sparse 3D reconstruction from unordered image sets
- you need cross-platform (Linux/macOS/Windows/Android/iOS) computer vision geometry building blocks
- you want to feed reconstructions into MVS tools for dense point clouds

## When to avoid
- you need dense reconstruction or textured meshes out of the box - pair it with an MVS tool like OpenMVS
- you want a GUI photogrammetry application rather than libraries and CLI binaries
- you need real-time SLAM rather than offline SfM
- you prefer Python-first tooling

## Facets
- artifact type: library
- maturity: active
- function: computer-vision, image-processing, graphics, sdk, cli
- domain: computer-vision, graphics
- platform: windows, cpp, cross-platform
- tags: structure-from-motion, 3d-reconstruction, photogrammetry, multiple-view-geometry, feature-matching, camera-models, algorithms, linux, macos, android, ios

## Member repositories
- openMVG/openMVG (main) score 48

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:45.073398+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:44:06.745235+00:00, confidence not recorded.
  - readme: https://github.com/openMVG/openMVG (fetched 2026-08-28T04:09:45.073398+00:00, sha 9d3be2382fa4)
- Data as of 2026-08-30T08:39:29.467469+00:00.