Adding pairs from sequence

[cduguet]

For faster SfM from video frames, and since it was mentioned in #135, I made a small image pair generator based on pairs_from_exhaustive. It has a window size, meaning image i can be paired with many up to i+window, and a loop option, meaning the last image can be paired with the first one.

[sarlinpe]

Thank you very much for this contribution! COLMAP has a sequential matcher that also has:

• quadratic overlap: match images in i + 2**[0, window] as well
• loop closure: trigger retrieval every n frames

Are you interested in implementing these features? I think that they could improve the accuracy & robustness on video data.

[cduguet]

sure thing, it's a great idea! adding to my todo list.

[zr19980402]

Could you finish the sequential matcher? I have the same interest in it.

[awarebayes]

Same thing would be real nice

[awarebayes]

Good implementation with loop closing and retrieval can be found in this fork: https://gitlab.ethz.ch/z-ricityslam/hloc_fork

[zr19980402]

Thanks for your help | | 徐浩若 | | ***@***.*** | ---- Replied Message ---- | From | Mikhail ***@***.***> | | Date | 3/21/2023 20:22 | | To | ***@***.***> | | Cc | ***@***.***> , ***@***.***> | | Subject | Re: [cvg/Hierarchical-Localization] Adding pairs from sequence (PR #175) | Good implementation with loop closing and retrieval can be found in this fork: https://gitlab.ethz.ch/z-ricityslam/hloc_fork — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: ***@***.***>