x ray,vision,inspection,and,quality,conrtol,solutions,(ishida)

8/20/2019 X Ray,Vision,Inspection,And,Quality,Conrtol,Solutions,(Ishida)

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XX--Ray VisionRay VisionInspection and qualityInspection and quality

control solutionscontrol solutions



OVERVIEWOVERVIEW• Radiation in daily life

• Principle of detection• The nature of X-Ray

• Product effect

• The benefits of X-Ray systems in production

– Missing item/Masking/Genetic Algorithm

• What is difficult to detect• What can be detected

• Advantage over metal detection

• Overall benefits to business



Flight attendant380μSv/week、

approx.2.0μSv/h

IX-GA1μSv/h Chest x-ray Stomach x-ray

50μSv/time 600μSv /time

CT SCAN

6900μSv/time

TV or PC monitor 0.5μSv/h

XX--RAY in DAILY LIFERAY in DAILY LIFE



X-ray tube

Cooling fan

Line sensor

X-ray generator tube

Cathode

AnodeProductTraveling Conveyor

Line sensor

Penetration

Level 5

Level 1,2,3

Level 4

Foreign

body

X -r a y

P en e t r a t i on

Radiation

PRINCIPLE OF DETECTIONPRINCIPLE OF DETECTION



The higher the density, more X-ray is absorbed

(= a darker image is displayed).

The thicker the product, more X-ray is absorbed

(= a darker image is displayed).

NATURE OF XNATURE OF X--RAYRAYIncoming radiation Outgoing radiation

Thin Plastic resin

AluminumThick

Fe, SUS

Incoming radiation Outgoing radiation



PRODUCT EFFECTPRODUCT EFFECT

Changes in product density can

cause diff icult ies in seeing small

contaminants

More homogenous products are

more conducive to small

contaminant detection



Benefits of XBenefits of X--RayRay

machines in productionmachines in production



MASKINGMASKING

Edge Masking

Pattern Masking

CLIP CHECK CAN BE DONE



Thin part

Crack

Number, shape, and thickness of individual product examined.Number, shape, and thickness of individual product examined.

Sample Missing check for 6pcs/pack hamburger

Result

NG：2 pcs.

OK ：4 pcs.

MISSING ITEM DETECTIONMISSING ITEM DETECTION



Reject (small)OK

Area

Reject (crack) Reject (deformed)

Perimeter

OK Reject (light)

Shade

Reject (void)

Contrast

MISSING ITEM DETAILMISSING ITEM DETAIL



WEIGHT ESTIMATIONWEIGHT ESTIMATION• Can estimate weight from the grey-scale density of

the product.

• Weight estimation is set up automatically

• Weight of individual component is also possible.



Software ApplicationsSoftware Applications

2 – Way Weight Estimation

Weights of 2 different compartments

can be estimated.

Useful for products that use 2 different

filling processes for different

compartments.

Can only tell if combined compartment

weight is correct with a check weigher.



Software ApplicationsSoftware ApplicationsCrack detection during bulk inspection

Available up to product length of 200mm

Deoxidizer location check

The deoxidizer should be the darkest part

of the product



Applications Available inspection range differs between

steel can and aluminium can. Up to

Note 30mm is maximum height of can.

Foreign object close to the edge can bedetected without deteriorating

sensitivity due to masking effect.

Inspection area is automatically expanded

tothe product edge. Dent of a can is detected

as well.



ApplicationsBulk production Individual package

（1row,2row）（1row,2row）

Void inspection Not available ok

Missing item inspection Not available ok

Pattern mask Not available ok

Package mask Not available ok

Brightness mask ok ok



GENETIC ALGORITHMGENETIC ALGORITHM(GA)(GA)

http://cs.felk.cvut.cz/~xobitko/ga/dna.html








30th generation 100th generation

First generation

100 generations: approx. 5 min.

1000 generations: approx. 50 min.

Virtual contaminants

5 pieces

““ GAGA”” SCREENING PROCESSSCREENING PROCESS

IMPROVED DETECTIONIMPROVED DETECTION


















% DETECTED CERAMIC BALL SIZE % DETECTED

1/10 2mm 4/10

2/10

3mm 9/10

9/10

4mm 10/10

10/10

5mm 10/10

10/10

6mm 10/10

10/10 8mm 10/10

Level 5 (GA) marked in Purpleimproves the sensitivity.

Targeting on 3mm

Ceramic Ball with

Level 5

Test piece: Ceramic ball

Product: Boiled noodle

IMPROVED DETECTIONIMPROVED DETECTION

Example
















































Detection of nonDetection of non--metallic itemsmetallic items

•Bones in meat



Detection of nonDetection of non--metallic itemsmetallic items

Hard Plastic

Hard Rubber Ceramic

Glass

Stones



DIFFICULT TO DETECTDIFFICULT TO DETECT

Paper/Cardboard

Thread/MaterialRubber glovesWood

Plants

Insects



Advantage over metal detectors Advantage over metal detectors•The location of the contaminant can be displayed on the screen.

•Can guide product through the X-Ray as there is no load cell or metalfree zone.

•Creates pictures of rejected product

•Not susceptible to vibrations

•Can use masking, missing item and weight estimation

•Can see non-metallic contaminant

•Not affected by salt, water content or the temperature of the product

•Genetic Algorithm means specific contaminant can be targeted



Due diligence and Brand

Protection• Ishida X-Ray bitmap and statistic capture

system

– All bitmaps of good and contaminated product saved.

– Database kept on hard drive with time and date stamps

– Can be called upon if any false claims are made by customers to

help in any court proceedings – actual X-Ray images of the

product in question can be called up.

O ll B fit f X R



Overall Benefits of X-Ray

machines•Food Safety

•Reducing the cost of customer complaints

•Reducing the cost of product recalls

•Improve production quality control

•Due diligence – X-Ray is the most effective way toPROTECT YOUR BRAND



THANK YOU

x ray,vision,inspection,and,quality,conrtol,solutions,(ishida)

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