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shunsukesaito / PIFu

This repository contains the code for the paper "PIFu: Pixel-Aligned Implicit Function for High-Resolution Clothed Human Digitization"
https://shunsukesaito.github.io/PIFu/
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test question #81

Closed jiandandian2 closed 3 years ago

jiandandian2 commented 3 years ago

hello, your work is very impressed and i want to know the what is the difference between eval_grid_octree and eval_grid, in the sdf.py image

shunsukesaito commented 3 years ago

eval_grid evaluates the entire 3d space, which might be extremely slow for high-resolution. eval_grid_octree hierarchically determines which grids need to be evaluated, thus accelerating the reconstruction time. Unless you have specific reason, I would recommend using eval_grid_octree all the time. Our follow-up work (https://github.com/Project-Splinter/MonoPort) has even more sophisticated faster reconstruction algorithm.

jiandandian2 commented 3 years ago

eval_grid evaluates the entire 3d space, which might be extremely slow for high-resolution. eval_grid_octree hierarchically determines which grids need to be evaluated, thus accelerating the reconstruction time. Unless you have specific reason, I would recommend using eval_grid_octree all the time. Our follow-up work (https://github.com/Project-Splinter/MonoPort) has even more sophisticated faster reconstruction algorithm.

thanks for your answer