OpenMVG vs Postshot

OpenMVG is an open-source C++ library for multiple-view geometry, 3D computer vision, and structure from motion. It provides libraries, binaries, and pipelines for reconstructing 3D scenes from images. Library areas include image manipulation, feature description and matching, feature tracking, camera models, multiple-view geometry, robust estimation, and structure-from-motion algorithms. Its binaries can initialize scenes, detect and match features, perform reconstruction, and export scenes to other multiple-view-stereo frameworks. Those frameworks can compute dense point clouds or textured meshes from exported scenes. OpenMVG is released under the Mozilla Public License 2.0 and is listed as free. The project says it aims to support reproducible research through readable implementations of classic and state-of-the-art algorithms. It is designed for reading, learning, modification, and use, with test-driven development and samples. Tutorials cover data structures, library use, and processing an image dataset. Platforms listed are Windows, macOS, Linux, iOS, Android, and self-hosted, with desktop deployment, API access, point-cloud export, and ground control point support.

Postshot is a Windows application from Jawset for reconstructing photorealistic 3D scenes and objects from photos or video with radiance field technology. Its workflow covers tracking, training, editing, and rendering, with image masking, region-of-interest training, scene merging, and model sequence rendering. Inputs include JPG, PNG, TIF, EXR, DNG, and RAW images plus MOV, MP4, and MKV video. Exports are PLY, SPZ, and HTML, and integrations include Unreal Engine and After Effects. Free supports COLMAP and RealityScan camera and point imports. The Free plan allows unlimited image count, video length, and model size, with output up to 4K SDR (8-bit) for non-commercial use. Indie adds watermark-free renders, commercial use, floating licensing, and PLY/SPZ export. Studio adds further formats, above-4K and HDR output, command-line use, and AprilTag alignment. Free costs nothing; Indie and Studio are also listed at free.