How long will the inference of one out-of-distribution scene take

[elenacliu]

besides issue #9, I wonder how long the inference of one out-of-distribution scene will take

[MohammadJohari]

Hi,

For an 800x800 resolution image, it takes approximately 2 minutes to render a novel view on an NVIDIA-RTX 3090 GPU. This is for the default settings which uses 9 input images.

[basit-7]

Hello @MohammadJohari,

1- Does Table 1 in your paper shows results for 9 input source images for all the methods (MVSNeRF, IBRNet)?

2- Is there a way to achieve faster inference?

[MohammadJohari]

Hello,

1. No, Table 1 shows the results from their original paper/code with their public pre-trained models.
2. The simplest hack to reduce the inference time is reducing number of input sources from 9 to something like 5 or 6. Most of the computation time is related to the attention blocks, which have a strong correlation with the number of input sources.

Kind regards,

[basit-7]

Thanks for the quick response.

Does reducing the source images to a lower number significantly affect the quality of rendered output?

[MohammadJohari]

I would refer you to Section 4.2 and Table 2 of our paper to get some insights.