MV-9_Chapter 5. Teaching.pdf - 第66页
MV -9 Use r Manual 5- 66 Inspection op tion: - Polarity com pone nt: Refer to polarity item ( p a ge5- 23 )‟ in ' 5.3.1 m ounti ng inspect i on window ‟ S pot i m prove m ent : use this to fill inside of the cha r…
错误!使用“开始”选项卡将 제목 2 应用于要在此处显示的文字。错误!使用“开始”选项卡将 제목 2 应用
于要在此处显示的文字。 .
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2) Teaching example of representative component
[Figure 5-70 Teaching example in optical character inspection window]
3) Parameter of optical character inspection window
Reference name
- Refer to „reference name (page5-21)‟ in „5.3.1 mounting inspection window‟ excepting
shape.
- Created in „_OCR_0_‟ format. „OCR‟ means Optical Character Recognition and number
means creation order of optical character inspection window.
Component name
- Refer to „component name (page5-21)‟ in '5.3.1 mounting inspection window‟.
Rotation angle
- Refer to „rotation angle (page5-22)‟ in '5.3.1 mounting inspection window‟.
Defect type
- Refer to „defect type (page)‟ in '5.3.1 mounting inspection window‟
Light type
- Refer to „light type (page5-22)‟ in '5.3.1 mounting inspection window‟.
Target character string
- Comparison character string for optical character inspection. Character string that is
entered during creation of inspection window will be displayed.
Binarization boundary value
- Auto level is used to automatically set binarization value for image binarization.
- Manual level is used to manually set binarization value for image binarization.
0°
90°
180°
360°
MV-9 User Manual
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Inspection option:
- Polarity component: Refer to polarity item (page5-23)‟ in '5.3.1 mounting inspection
window‟ Spot improvement: use this to fill inside of the character with white for binarization
of character part.
- Character/background setting: set contrast between character string and component body.
Select „White/Black‟ when character string is white and body is dark.
Select „Black/White‟ when character string is black and body is white.
Matching Option
- Matching ratio
If character string is not found using OCR‟s recognition algorithm, conduct inspection
using algorithm that is used for mounting inspection. At this point, normal judgment
reference matching value that is used.
- Search range
Set search area to find character string that completed teaching in X/Y pixel unit.
Pattern image screen
- Refer to „pattern image screen (page5-25)‟ in '5.3.1 mounting inspection window‟
Character edit
- This function is used for users to directly register character in order to increase recognition
rate of various character fonts on component. The following is the way to register it.
① Click <character teaching> button.
② If font of character desired to be registered differs from font of already registered character,
select character font to be registered as shown in the figure below and enter character to be
registered in data box on the left of <Add> button and then click <Add> button to register the
relevant font.
③ To edit font of character desired to be registered, click <Edit> button in user font
management screen.
[Figure 5-71 User font management screen]
错误!使用“开始”选项卡将 제목 2 应用于要在此处显示的文字。错误!使用“开始”选项卡将 제목 2 应用
于要在此处显示的文字。 .
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[Figure 5-72 Register character font edit screen]
4) Inspection result in status screen
If it is found using OCR character recognition algorithm, extract characteristic of each
character to display the searched result.
[Figure 5-73 Inspection result of OCR’s character recognition algorithm]
If it is found using pattern matching, use pattern matching to show that character string is
recognized.
[Figure 5-74 Inspection result of character pattern matching]