An Evaluation of Cellular Neural Networks for the Automatic Identification of Cephalometric Landmarks on Digital Images

Table 1

Definitions of landmarks.

Landmarks
Name	Abbreviation	Definition
Nasion	N	Anterior limit of sutura nasofrontalis
Subspinale	A Point	Deepest point on contour of alveolar projection between spinal point and prosthion
Basion	Ba	The most inferior point on the anterior border of the foramen magnum in the midsagital plane
Porion	Po	The most superiorly positioned point of the external auditory meatus
Pterygoid point	Pt	The intersection of the inferior border of the foramen rotundum with the posterior wall of the pterygomaxillary fissure
Supramentale	B Point	Deepest point on contour of alveolar projection between infradentale and pogonion
Pogonion	Pg	The most anterior point of symphysis
Protuberance menti- or suprapogonion	PM	A point selected where the curvature of anterior border of the symphysis changes from concave toconvex
Upper incisor edge	UIE	Incisal edge of the most anterior upper incisor
Lower incisor edge	LIE	Incisal edge of the most anterior lower incisor