Wavelets and Morphological Operators Based Classification of Epilepsy Risk Levels

Table 1

Parameter ranges for various risk levels.

Normalized parameters	Risk levels
	Normal	Low	Medium	High	Very high
Energy	0-1	0.7–3.6	2.9–8.2	7.6–11	9.2–30
Variance	0–0.3	0.15–0.45	0.4–2.2	1.6–4.3	3.8–10
Peaks	0–2	1–4	3–8	6–16	12–20
Events	0–2	1–5	4–10	7–16	15–28
Sharp waves	0–2	1–5	4–8	7–11	10–12
Average; duration	0–0.3	0.15–0.45	0.4–2.4	1.8–4.6	3.6–10
Covariance	0–0.05	0.025–0.1	0.09–0.4	0.28–0.64	0.54–1