Local Analysis of Human Cortex in MRI Brain Volume

Table 1

Possible combinations of surface types according to different descriptors.

Sign (𝐾𝐻)	−	−	+	+
Sign (𝐾𝐺)	+	−	−	+
Shape Index (SI)	[3/8,1]	[1/8,3/8]	[−3/8,−1/8]	[−5/8,−1]
Region type	Elliptic	Hyperbolic	Hyperbolic	Elliptic
Region color	Green	Cyan	Blue	Red