Keunhong Park comments

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                                            Keunhong Park

Added fixes to problems that occur on python3

I just ran into this issue as well. It'd be great to have it merged.

Camera coordinate and bds

Hi Dogyoon. 1. We don't use NDC coordinates as NeRF does for some of the LLFF scenes. We use normal Euclidean coordinates, in which case the specific coordinate convention doesn't...

Wrong resolution when Implementing nerfies on nerifies-vrig data

Hi Chilson. How small are your outputs? Some of the datasets have smaller resolutions (the ones taken as a video rather than a collection of photos).

run train.py with test_local.gin successfully but have a problom with hypernerf_interp_ap/ds_2d.gin

You're likely running out of GPU or system memory. If it hangs for 5 hours maybe you ran out of system memory and it's swapping?

Deformation for view direction?

Hi, sorry for the late response. This is a very good question. Our method uses observation-frame view directions which remain correct after deformation. With the appearance latent code, this provides...

possible error in the warp code

Hi, I'm not sure I completely understand the question. Are you using COLMAP to do the camera registration? People tend to me, and even if you try really hard to...

Implementation about the 2D Toy

Here you go! https://github.com/google/hypernerf/blob/main/notebooks/figures/nerfies_2d_experiments.ipynb

Problem with Geman-McClure loss implementation

Did you square the residual before passing it to the function?

About the training of the sampling location offsets

Hi, the weights of the last layer in the deformation MLP are initialized close to the identity, since you want it to stay close to the identity unless it needs...

Difference size of `rgb` and `origins` lead to `Index out of` error

It seems like your cameras do not match your images for some reason. They are quite small so it might be a rounding issue.