Adept AdeptSight User Guide - Manual (Page 317)

Object Definition
Elongation The degree of dispersion of all pixels belonging to the
blob around its center of mass. The elongation of the
blob is calculated as the square root of the ratio of
the moment of inertia, about the minor axis, to the
moment of inertia about the major axis.
The following two results require the Calculate Blob Angle property to be true.
Object Definition
Inertia Minimum Moment of inertia about the major axis, which cor-
responds to the lowest moment of inertia.
Inertia Maximum Moment of inertia about the minor axis, which cor-
responds to the highest moment of inertia.
Extrinsic Inertia Results
A moment of inertia of the blob is a measure of the inertial resistance of the blob to rotation
about a given axis. Extrinsic moments of inertia measure the moment of inertia about the X-
Y axes of the Tool coordinate system.
Extrinsic Moments of Inertia
A moment of inertia of the blob is a measure of the inertial resistance of the blob to rotation
about a given axis. Extrinsic moments of inertia measure the moment of inertia about the x-
y axes of the Tool coordinate system.
Object Definition
Principal Axes A reference system that is constituted of the
major axis and the minor axis. The major axis (X)
is the axis about which the moment of inertia is
smallest. Conversely, the minor axis (Y) is the axis
about which the moment of inertia of the blob is
the greatest.
The principal axes are orthogonal and are iden-
tified by the angle between the X-axis of the
region of interest and the major axis of the blob.
Extrinsic Inertia Results
AdeptSight User's Guide, Version 3.2.x, Updated: 8/23/2012
Page 317