About the reconstruction pipeline

[Jemian2023]

Now I have a bunch of images and their internal parameters and their accurate poses. I want to use the Hloc pipeline, such as the pipeline of "disk+lightglue+netvlad". and then I use Pycolmap to perform 3D reconstruction to generate sparse 3D models. The coordinate system of the image and map points in the model must be consistent with the original image coordinate system. How can I do this? Thank you.

I guess if I can perform as:

options = {"num_threads": min(multiprocessing.cpu_count(), 16),  "fix_existing_images": true, **options}
pycolmap.incremental_mapping(database_path, image_dir, models_path, options=options)

Is this plan feasible? Looking forward to your reply!