How to run covisibility-based matching?

[Richard-coder]

as in https://github.com/openxrlab/xrsfm/blob/main/docs/zh/tutorial.md, i'm trying use covisibility-based matching, It seems this part of the code has not been implemented yet.

"retrieval_path" indicates the path of the retrieval file, which stores the results of image retrieval. Currently, the image retrieval function is supported in XRLocalization. You can also generate the file through other retrieval methods. For specific file format, please refer to introduction.md.

"matching_type" indicates the matching strategy. Currently, XRSfM supports sequential matching("sequential"), retrieval-based matching("retrieval"), covisibility-based matching

[HailinYu0414]

Please refer to this document to generate image pairs first.