Table 1. Quantitative measurement on interpolation error.

The best results are marked in bold for better comparison.

IE	Ours	HS	Classic+NL	LODF	EpicFlow	S2F
Synthetic images	0.035157	0.064166	0.063931	0.045850	0.063417	0.063562
Smoke	0.017399	0.058569	0.057548	0.040150	0.058507	0.057942
Clouds	0.011408	0.024921	0.022619	0.011629	0.021974	0.021930
Hurricane	0.131075	0.154808	0.151310	0.138125	0.149551	0.150956