Waygate Technologies Everest Mentor Visual iQ VideoProbe Operating Manual page 61

Placing a Measurement Plane
(3D Phase and 3D Stereo)
A measurement plane extends an object beyond its existing edges (like
the surface of a broken compressor blade). This allows placement of
measurement cursors within an area that does not include measurable
image pixels.
1
– Capture an image for measurement using either the 3DPM or 3D Stereo
procedures. Alternatively, recall a previously stored 3D measurement image.
2
– Select to begin the measurement process and insert a Measurement
Plane. This icon appears in the status bar while the Measurement Plane is
active.
3
– Defining the Measurement Plane requires placement of three cursors
on valid (not red) pixels. Notice that only Measurement Plane cursors are
triangular.
4
– Once the third cursor appears, a semi-transparent Surface Mask is
displayed. Points on the surface that are very close to being on the defined
Measurement Plane (those whose distance from the plane is within 1% of their
distance from the tip) are shown in green. Points lacking 3D data appear
red. For best accuracy, adjust the cursor positions as needed to maximize
the amount of green near the desired measurement location.
5
– Rotate the Point Cloud View at any time to confirm that the Measurement
Plane, indicated by a blue rectangle, aligns with the intended surface.
6
– Select to add a measurement to the image, then choose the
measurement type. While this example shows an Area measurement, the
Measurement Plane is compatible with most indication types.
7
– When measuring Area, all cursors are projected onto the Measurement
Plane. Cursors may be placed anywhere in the image, even where no 3D
data is present. Click here to learn how each measurement type is affected
by the Measurement Plane.
Note: Once a user-defined Measurement Plane is added to an image, all
measurements added before or after the plane was inserted utilize the
Measurement Plane.
61