Chapter 4
Performing Particle Analysis
IMAQ Vision for LabWindows/CVI User Manual
4-8
ni.com
IMAQ_MT_MAX_FERET_DIAMETER_START_Y
Y-coordinate of the start of the
line segment connecting the two
perimeter points that are the furthest
apart
IMAQ_MT_MAX_HORIZ_SEGMENT_LENGTH_LEFT
X-coordinate of the leftmost pixel in
the longest row of contiguous pixels
in the particle
IMAQ_MT_MAX_HORIZ_SEGMENT_LENGTH_RIGHT
X-coordinate of the rightmost pixel
in the longest row of contiguous
pixels in the particle
IMAQ_MT_MAX_HORIZ_SEGMENT_LENGTH_ROW
Y-coordinate of all of the pixels in the
longest row of contiguous pixels in
the particle
IMAQ_MT_MOMENT_OF_INERTIA_XX
Moment of inertia in the x direction
twice
IMAQ_MT_MOMENT_OF_INERTIA_XY
Moment of inertia in the x and y
directions
IMAQ_MT_MOMENT_OF_INERTIA_YY
Moment of inertia in the y direction
twice
IMAQ_MT_MOMENT_OF_INERTIA_XXX
Moment of inertia in the x direction
three times
IMAQ_MT_MOMENT_OF_INERTIA_XXY
Moment of inertia in the x direction
twice and the y direction once
IMAQ_MT_MOMENT_OF_INERTIA_XYY
Moment of inertia in the x direction
once and the y direction twice
IMAQ_MT_MOMENT_OF_INERTIA_YYY
Moment of inertia in the y direction
three times
IMAQ_MT_NORM_MOMENT_OF_INERTIA_XX
Normalized moment of inertia in the
x direction twice
IMAQ_MT_NORM_MOMENT_OF_INERTIA_XY
Normalized moment of inertia in the
x and y directions
IMAQ_MT_NORM_MOMENT_OF_INERTIA_YY
Normalized moment of inertia in the
y direction twice
Table 4-1.
Particle Measurements (Continued)
Measurement
Description
