Fourier Series Analysis for Novel Spatiotemporal Pulse Waves: Normal, Taut, and Slippery Pulse Images

Table 3

Spatiotemporal pulse statistics.

Methods and indexes	Normalized value
	Normal pulse	Taut pulse	Slippery pulse
pAI [33]	0.65 ± 0.05	0.75 ± 0.07	0.50 ± 0.03
Array pulse volume [8]	1.85 ± 0.22	2.30 ± 0.33	2.18 ± 0.13
2DL from contour analysis [9]	0.45 ± 0.06	0.75 ± 0.11	—
rLc from L-cube polynomial [10]	1.21 ± 0.15	2.14 ± 0.44	—
[, ] from the proposed method	[0.39 ± 0.04, 0.00 ± 0.02]	[0.25 ± 0.05, 0.03 ± 0.04]	[0.32 ± 0.03, 0.16 ± 0.03]

pAI is calculated from a single temporal pulse wave, not a spatial pulse wave.