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4-2 ITEM Overview (Sensitive Search)
4-2
ITEM Overview (Sensitive Search)
Sensitive search is a useful function to detect even minute differences, which
are difficult to determine using pattern searches. The degree of matching is
checked in detail by automatically subdividing registered models.
Search region
(region for searching
for model)
Model
(image pattern to find)
Search Process
1. Pattern Search
A pattern search is performed with registered models without subdivision.
The location with the greatest correlation is extracted for the measurement
mode (high-speed, standard, and high-precision).
2. Sensitive Search original
Subdivided models are matched against the location obtained in step 1,
and the value of the part with the worst correlation is output.
Another setting
Search mode
Hi-speed / Normal / Precision (default)
This is same setting as pattern search. (See the "Pattern Search")
Sensitivity
Low / Middle (default) / High
accuracy:
measurement speed: Low > Middle > High
Low
Rotation Range Rotation range: 0 to 180 (default value: 0)
Skipping angle: 1, 2, 3, 5, 10, 15, 20, 30 (default value: 10)
Skipping angle
This is same setting as pattern search. (See the "Pattern Search")
Interpolation
ON / OFF (default)
This is same setting as pattern search. (See the "Pattern Search")
Verification
ON / OFF (default)
0 to 100 (default value: 60)
Candidate level
This is same setting as pattern search. (See the "Pattern Search")
Solid Color
Check
Low < Middle < High
Middle
High
Low:
Middle: Up to 25 models
High:
It's impossible to calculate the correla-
tion values for unpatterned locations.
Therefore, the extent that pattern is
lacking is output based on the average
deviation, if solid color check is ON.
Value: 0 to 100
The closer to 100, the more uniform.
Item Overview
Subdivision
Up to 9 models
Up to 100 models
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