Unknown keypoint/descriptor combination for a custom correspondence estimator

[Merical]

Hi！ I'm trying to validate my correspondence estimator with outputs similar to loftr. I've extracted the correspondence according to extract_loftr_matches.py and written the JSON file as: [ { "config_common": { "json_label": "ours-2021", "keypoint": "free", "descriptor": "free", "num_keypoints": 8000, }, "config_phototourism_stereo": { "use_custom_matches": true, "custom_matches_name": "ours-2021", "geom": { "method": "cv2-8pt" }, }, "config_phototourism_multiview": { "use_custom_matches": true, "custom_matches_name": "ours-2021", "colmap": {}, }, }, ]

But I got a RuntimeError: Unknown keypoint/descriptor combination in compute_feature.py. Would you please provide some suggestions or some sample JSONs/tutorials for loftr? Thank you!