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NVlabs / neuralangelo

Official implementation of "Neuralangelo: High-Fidelity Neural Surface Reconstruction" (CVPR 2023)
https://research.nvidia.com/labs/dir/neuralangelo/
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What is the difference between numerical taps 4 and 6？ #190

Closed mowangmodi closed 3 months ago

mowangmodi commented 4 months ago

I see that the default value for the tag is 4, so can I ask what is the difference between the numeric tags 4 and 6?

mli0603 commented 3 months ago

Hi @mowangmodi

Thank you for your interest in our work. Using 4 taps is a faster approximation of the analytical gradient where only 4 points are queried to compute the finite differences, but less accurate compared to 6 taps. Using 4 taps would speed up the convergence with a little sacrifice of the quality.

I hope this helps!