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III- 76 Programming Manual Part III Inspection Algorithm 1.23 OKNGImages 1.23.1 Inspection Ov er view OKNGImages is the algorithm to inspect for pattern matching inspection. This algorithm determines either of OK or NG i…

III-75

Programming Manual

Part III Inspection Algorithm

1.22.3 Setting Procedure

Step1: Set search range for the lead end area. After changing parameter of Search Range below

Lead Top Area, press Inspect. Make sure that lead end area is surrounded by yellow

dotted line automatically or not.

Step2: Set inspection window size for lead end area. After changing parameter of Lead Top Area,

press Inspect. Adjust the size of the yellow dotted window.

Step3: Set search range for the lead base area. After changing parameter of Search Range below

LeadBase, press Inspect. Make sure that lead base area is surrounded by pink dotted line

automatically or not.

Step4: Set inspection window size for lead base area. After changing parameter of LeadBase,

press Inspect. Adjust the size of the pink dotted window.

Step5: Enter 5 in Upper ﬁ eld and -5 into Lower ﬁ eld.

NOTE

Sample value is distance of lead end area to lead base area.

㻭㼢㼑㼞㼍㼓㼑

Average value for leads length

in the same side of the body

- Selected lead length

Figure 1-91 Lifted Lead Inspection by AS_Av_LeadLength

Step6: Enter the appropriate vector into the Shift ﬁ eld. Any value from V1 to V8 is available.

Select the vector according to the Memorize to ﬁ eld of the Adjust window.

Step7: Right-click on AS_Av_LeadLength in the inspection item list and select Parameter Copy

to copy parameter to the other leads.

Step8: Press Jump and adjust inspection window size of the corner leads in each.

Step9: Press Inspect. Make sure that the inspection is completed properly.

III-76

Programming Manual

Part III Inspection Algorithm

1.23 OKNGImages

1.23.1 Inspection Overview

OKNGImages is the algorithm to inspect for pattern matching inspection.

This algorithm determines either of OK or NG image is closer to the detected image.

This algorithm is suitable for missing inspection which is difﬁ cult to be detected by brightness level or

inspections which false calls frequently occur. OKNGImages can be used in fare-paying software.

1.23.2 Parameter Setting

Figure 1-92 OKNGImages

Parameter Description

Lighting

Select a lighting which shows difference between the OK image and NG image.

Algorithm

Select OKNGImages.

Angle

Search Range No need for setting. Search Range shown in Table 1-36 is displayed.

Shift[V1-V8]

Enter the appropriate vector. Any value from V1 to V8 is available.

Select the vector according to the Memorize to ﬁ eld of the Adjust window.

Memorize to

Upper, Lower Set upper and lower limit of the OK range.

Sample

Shows the match percentage. The match percentage of NG image is displayed as a negative value.

Table 1-35 Parameter of OKNGImages

Item Description

Reg mode

To register a template image, press Reg mode.

View

To display the highest match percentage template image, check Matching image.

To display a detected image, check Detected image. A pink window is an inspection window.

Search Range

Set a search range for images. Display the search range as the orange dotted line.

Enter the search range or press + and - to adjust the search range.

Table 1-36 Each Item of OKNGImages

III-77

Programming Manual

Part III Inspection Algorithm

1.23.3 Setting Procedure

Step1: Select a lighting that shows the difference between OK image and NG image from the

Lighting drop-down list.

Step2: Adjust the size of the inspection window to surround the target component.

Step3: Register the template image. Press Reg mode. The image shown in Figure 1-93 appears.

Press Reg OK to register OK image. Press Reg NG to register NG image.

CAUTION

Ten template images to each OK and NG can be registered.

Figure 1-93 Reg mode

Step4: Press Reg mode. The inspection is operated. Display the highest match percentage OK

template image and NG template image.

NOTE

Display the match percentage in the upper side of OK image and NG image. The

higher value Larger match percentage is shown as sample value. The match

percentage of NG image is displayed as a negative value.

Figure 1-94 Inspect