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dcharatan / flowmap

[3DV 2025] Code for "FlowMap: High-Quality Camera Poses, Intrinsics, and Depth via Gradient Descent" by Cameron Smith*, David Charatan*, Ayush Tewari, and Vincent Sitzmann
https://cameronosmith.github.io/flowmap/
MIT License
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Why not using GMFlow as the default optical flow estimator #19

Closed ruili3 closed 6 months ago

ruili3 commented 6 months ago

Hi

Thanks for the great work and the decently-written, well-commented codebase!

I noticed you also have GMFlow as an alternative optical flow estimator but the default setting is still RAFT. Since GMFlow is a relatively new method with reported scores higher than RAFT, I wonder why you made this selection :)

Thanks in advance!

dcharatan commented 6 months ago

In practice, we found that RAFT gives more accurate/usable optical flow. GMFlow is much faster to run, though, so we use it for pretraining.