Confusion about Table 2 Baseline

[csrqli]

Hi,

Thanks for the great work! I notice that in Table 2 there are two settings NeRF+Random and NeRF†, and I'm a little confused about the difference between these two settings.

Is it that the NeRF† uses all training images from the beginning of training and NeRF+Random gradually adds images during training? If so, do they use the same randomly selected images?

And when you mentioned "difficulties introduced by continuous learning", did that refer to the difficulties caused by fewer training iterations for later added images, or did the NeRF† setting select some optimal images?

Thanks in advance!