openMVS

The RoMa v2 graphs CreateStructure's --roma2 option runs in-process through ONNX Runtime: a DINOv3 descriptor graph with on-device retrieval pooling and a bidirectional coarse-match graph, preset base (640 px), fp32. scripts/fetch_roma2_model.py downloads and verifies these files against models/roma2/checksums.txt; this release is its mirror of the Hugging Face repository cDcSeacave/openmvs-roma2-onnx. The descriptor graph contains DINOv3 weights: downloading and using these files means accepting the DINOv3 License (LICENSE-DINOv3.md, attached). RoMa v2 itself is MIT (LICENSE-RoMaV2-MIT.txt).

Version 2.3.0 (January 7, 2024)

Summary

• store all stages in Interface MVS format by default
• store dense point-cloud as PLY, including all point-views information, etc
• add max-texture-size and multi-texture support to mesh texturing stage
• speedup/improve fix non-manifold mesh algorithm
• unify library/application initialization/destroying
• add python support for reading DMAP and Interface MVS file formats
• account for different pixel center conventions when importing/exporting COLMAP which uses pixel center at (0.5,0.5) instead of (0, 0) as OpenMVS
• add interface to MVSNet, Nerfstudio and RTMV scene formats
• improve interface to Polycam scene format
• speedup PLY load/save
• speedup/improve ray-triangle intersection
• add support for UV coordinates agnostic about orientation
• add support for storing neighbor views information in Interface MVS format
• add support for C++20
• various other fixes

Major Features

Storage & I/O

• Interface MVS format as default - All stages stored in MVS format by default
• Dense point-cloud as PLY - Including all point-views information
• Python API - Read DMAP and Interface MVS file formats from Python
• Speedup PLY load/save - Faster file operations

Texturing

• Max-texture-size support - Control texture resolution
• Multi-texture support - Multiple texture maps for large meshes
• UV coordinates orientation agnostic - Flexible UV handling
• Pixel center convention fixes - Correct pixel center handling

Pipeline Integration

• MVSNet interface - Import/export MVSNet scenes
• Nerfstudio interface - Import Nerfstudio data
• RTMV interface - Support for RTMV format
• Polycam improvements - Better Polycam import

Mesh Operations

• Fix non-manifold speedup/improvement - Faster and better mesh cleanup
• Ray-triangle intersection improvements - More accurate and faster
• Neighbor views in MVS format - Store neighbor information

Build & Development

• C++20 support - Modern C++ features
• Unified initialization - Library/application lifecycle management
• COLMAP pixel center convention - Account for (0.5,0.5) center vs (0,0)

• add Python API
• COLMAP support in MvgMvsPipeline.py
• interface for binary COLMAP
• interface for Polycam scenes
• tower mode #1017
• estimate 3D points scale
• transform scene by a given transform matrix
• unify Docker scripts and add support for GUI
• fix incorrect comparison in BufferedOutputStream #1010
• add lines structure
• compute the focus of attention of a set of cameras
• add image mask support in mesh texturing

• Improve depth-map estimation in textureless areas using multi-resolution
• Add texture sharpening
• Ground plane estimation
• Estimate volume from the reconstructed mesh
• Texture transfer between two meshes
• Automatic Region-Of-Interest estimation
• Simplify build with vcpkg
• Add tests
• Add Continuous Integration action
• Various bug fixes