Xharlie/pointnerf

Neural Point Querying

lorettaxu opened this issue · 2 comments

In the part H Neural Point Querying from the paper, the evenly spaced 3D grids are mentioned.
And the paper says that 'Since these grids in the perspective coordinate are cubic, in the world coordinate, they have shapes of spherical voxels'.
Could you please give more detailed information about the perspective coordinate?
And may I ask why the grids can have shapes of spherical voxels in the world coordinate?
Thank you!

same question,have you figured it out?