Resolution Penalty

For each surface location, find the distance d1 between it and the synthetic camera location.
For each input camera position and surface location, measure the distance d2 between them.
Let the resolution penalty be
max(0, d2 – d1)
Note that we're only accounting for far away reference views. Aliasing may result.

For each surface location, find the distance d1 between it and the synthetic camera location.