jiepengwang / NeuRIS

MIT License
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Question about range scale of the scene #24

Open dogyoonlee opened 1 year ago

dogyoonlee commented 1 year ago

Hi appreciate to your awesome work!

I have a question about the scale of the scene.

As NeuS aim to object-centric 3D scene, they use the scale matrix to the scene to be located in unit sphere.

However, forward-facing scene which is used in original NeRF paper or indoor scene you handled are not object-centric 3D scene.

I wonder how did you set the range of the 3D scene in your paper?

As I understand, the room scale seems to be rescaled in your code as well.

If I want to use the LLFF format forward-facing scene to train the NeuS based code, is it necessary to rescale the scene to be located in unit sphere?

There are preprocessed colmap camera pose data in LLFF dataset and they did not use rescaling in their code to train the scenes.

But I worried about the code in NeuS based code that they model the 3d space without unit-sphere with NeRF++ and it does not have SDF value to generate the mesh after training as I understand.

Hence I wonder what factors should be modified to train the scene-level(indoor scene or forward-facing scene) in yours and NeuS code?

Thank you for attention! I will wait your reply :)