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chenhsuanlin / bundle-adjusting-NeRF

BARF: Bundle-Adjusting Neural Radiance Fields 🤮 (ICCV 2021 oral)
MIT License
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Why not use ndc in LLFF dataset? #66

Closed Nemo1999 closed 1 year ago

Nemo1999 commented 1 year ago

Hi @chenhsuanlin

Thanks for releasing the greate implementation, the codebase structure is very useful and extensible!

I am trying to merge barf with voxel based nerf, and I noticed that you didn't use ndc in llff dataset. Is there a reason for this choice? Do you see any factor preventing me from running barf with ndc on LLFF ?
Thank you very much!

chenhsuanlin commented 1 year ago

Hi @Nemo1999, when in the very early development stages, empirically I found that reparametrizing the 3D space with NDC did not work well with BARF. I have not got to revisit it after the final code release. If you happen to find interesting results with NDC, please do let me know! ☺️

Nemo1999 commented 1 year ago

Thanks for the reply! I'll try that!

panxkun commented 1 year ago

Thanks for the reply! I'll try that!

Hi，Do you have any findings on how NDC affects in Barf?

Nemo1999 commented 1 year ago

Barf performs Very Bad with NDC. I think that is because NDC distort the original pose gradient.