Smart Gui - Algorithm Training Material_rev1.pdf - 第176页

Copyright © ViT rox All Rights Reserved . 176 U-T ype Diff Joint Algorithm Identify surface defects on component using certain parameter and through learning good components

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U-type Locator - M Joint
175
a. Direction
Tick to enable the joint inspection box follow locator.
b. Count
To adjust the number of pin.
c. Pitch
To adjust the distance between the pins.
d. Pin Number
To define the pin number
e. Inverse Pin Numbering
To inverse the pin numbering.
f. Box Size & Box Offset
To adjust the joint inspection box size & joint inspection box offset.
g. Image Plane
These are the types of 2D Lighting. Select the one with having
highest contrast among interested inspection region and the
background.
h. Grey Thres
i. Invert Grey Thres
Invert the Grey Thres Logic
Dark: Fail & Bright: Pass
Grey Threshold
Pass Fail
Pass Criteria for single pixel:
a. Measured Grayscale < Joint Grey Thres
The overall pass criteria depends on:
Joint Coverage (%) > Joint Coverage Thres (%)
where,
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176
U-Type Diff Joint Algorithm
Identify surface defects on component using certain parameter and
through learning good components
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Steps for Diff Joint Learning Setup
177
Step 1:
Look for good sample & Select save image mode
Step 2:
Drag and resize the box size & search box size
Box Size: Interested region to save the base image.
Search Box Size: Region to search the base image.
Step 3:
Click on “Save Base Image”
Step 4:
Press inspect button at 'Save Image' mode.
This action is to save the good image of the component.
A score will appear near the component. The score is indicate correlation
score.
Step 5:
Do the save image step (Step 4) by at least 6 good components.
After the last component is saved, change 'Save Image' mode to
'Inspect:xx' mode.
This is to prevent if we accidently save defect component image.