[Question] Difference between render_set and render_set_current

[minsu1206]

Hi
Thanks for sharing nice work.

I runned FisherRF for several scenes and found that the function render_set_current also outputs reasonable uncertainty maps.
However, I don't have a deep understanding of the Hessian matrix and Fisher Information. So could you explain the difference between render_set and render_set_current in terms of Fisher information? How should I interpret the uncertainty maps produced by these functions?

I'll attach one example. (I trained Nerfbusters aloe scene as an example)

[GT / Rendered Image / RGB error map (brighter color = higher error)]

[Heatmap by render_set]

[Heatmap by render_set_current]

Thanks for considering my request.

[JiangWenPL]

Hello, thank you for your interest in our work! IIRC, render_set is to render the trace of fisher information on each gaussian parameters from and render_set_current renders the fisher information computed from the current frame.

[minsu1206]

Thanks !!