DRosemei

How to read waymo Block-NeRF dataset?

2

I find that waymo Block-NeRF dataset has been provided [here](https://waymo.com/research/block-nerf/?ncr). I want to know how to parse these tfrecords. 

what does array_ops.where mean?

1

Thanks for your sharing. I want to know what array_ops.where means. Is it similar to tf.where? Besides, I use it for SSD-Tensorflow, and loss is very high. I make some...

How to prrocess test results of SemanticKitti for online testing?

1

Thanks for you great work! How to prrocess test results of SemanticKitti for online testing? There is an official testing [link](https://competitions.codalab.org/competitions/20331). What I need to do is to zip predicted...

visulization is not so good

3

Thanks for your great work! I am using your provided model to evaluate single image and find that the visualization is not so good? How could I get better results?...

Thanks for your code. I run it well, but I find a porblem. There are 30 classes in their official introduction while you set num_classes to 19. I do not...

make error when build TheiaSfM

2

Thanks for your nice work! But I meet trouble when building TheiaSfM   How could I solve it? Thanks in advance!

no "alpha" in focal_loss_softmax

1

Dose "alpha' make no contribution to multi_class classification?

error: 'ncclCommGetAsyncError' was not declared in this scope whem pip install horovod

1

**Environment:** 1. Framework: PyTorch 2. Framework version: 3. Horovod version:0.26.1 4. MPI version: 5. CUDA version: 11.1 6. NCCL version: nccl-local-repo-rhel7-2.8.4-cuda11.1-1.0-1.x86_64.rpm 7. Python version: 3.8 8. Spark / PySpark version:...

About "nerf_pose_to_ours"

2

Thanks for your great work! I found that you use [nerf_pose_to_ours](https://github.com/sxyu/svox2/blob/master/opt/util/llff_dataset.py#L558) to convert poses from OPENGL coordinate. I want to konw how your coordinate define here and your special NDC...