Introduction - If you have any usage issues, please Google them yourself
Colmap open source
COLMAP is a general-purpose Structure-from-Motion (SfM) and Multi-View Stereo (MVS) pipeline with a graphical and command-line interface. It is convenient to perform three-dimensional reconstruction on a series of two-dimensional images without calibrating the camera. It is only necessary to shoot a reconstructed scene or object from different angles to obtain a series of images as input.