Matching Cursors - GE XL Vu+ VideoProbe Operating Manual

Chapter 6. Measurement

6.5.3 Matching Cursors

For each cursor the user places on the left image, the system places a matching
cursor on the right image (see Figure 84 below).
INDEX = 1.7 <5>
The left cursors must be placed on an image point that has enough detail to
distinguish it from surrounding points. If the neighboring points look the same as
the point chosen, the system cannot accurately place a matching cursor.
For every matching cursor, the system calculates a match strength value between
<0> (lowest confidence) and <5> (highest confidence). If too little detail is present,
the system simply does not generate a matching cursor. Whenever possible, achieve
a match strength of at least <3>. If this is not possible, capture another image.
Verify that the matching cursor appears to be in the same position as the selected
cursor. A matching cursor that is off even slightly can have a significant impact on
the measurement accuracy.
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Your cursors
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Figure 84: Example of Matching Cursors
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<5>
Matching cursors
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