COLMAP
COLMAP is an open-source structure-from-motion and multi-view stereo reconstruction software. It can generate high-quality camera tracking and 3D reconstructions from unordered image collections. COLMAP is flexible, accurate, and efficient.
photogrammetry
structure-from-motion
3d-reconstruction
computer-vision
COLMAP: Open-Source Structure-from-Motion Software
Open-source structure-from-motion and multi-view stereo reconstruction software for high-quality camera tracking and 3D reconstructions from unordered image collections.
What is COLMAP?
COLMAP is an advanced, open-source software for 3D reconstruction from images and videos. It implements state-of-the-art algorithms for structure from motion (SfM) and multi-view stereo (MVS) to compute camera parameters and dense 3D point clouds from image collections.
Some key features and capabilities of COLMAP include:
- Reconstruction of ordered and unordered image sets from diverse sources like internet photo collections, aerial imagery, smartphone cameras, etc.
- Robust incremental SfM pipeline for fast, automated camera and scene reconstruction.
- Accurate MVS algorithms like Pixelwise Stereo Matching and PatchMatch Stereo for creating dense and complete 3D models.
- Built-in Bundle Adjustment procedures for optimizing camera parameters and 3D geometry.
- Support for using images with varying resolutions and quality levels.
- Flexible architecture that allows re-using intermediate reconstruction results.
- Good performance in reconstructing diverse scenes like urban environments, landscapes, interiors, objects, etc.
- Command-line and GUI interfaces for LINUX, MacOS and Windows.
- Reconstructed models can be exported to common formats like PLY, OBJ, XYZRGB textures, etc.
COLMAP delivers industrial-grade SfM and MVS capabilities in a free, open-source package. With its rich feature set and broad applicability, it is a popular choice for 3D reconstruction tasks in research and commercial settings.
COLMAP Features
Features
- Structure from Motion (SfM) reconstruction
- Multi-View Stereo (MVS) reconstruction
- Incremental SfM pipeline
- Global SfM optimization
- Patch-based MVS
- Fusion-based MVS
- Bundle adjustment optimization
- GPU acceleration
Pricing
- Open Source
Pros
Accurate and robust reconstruction
Handles large image collections
Open source and customizable
Command line and Python interfaces
Cons
Steep learning curve
Long processing times for large datasets
Limited documentation and support
Official Links
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