1. Vision-Based Metrology

2. Vision-Based Metrology History
Vision-Based Metrology refers to the technology using optical sensors and digital image processing hardware and software to:
Identify
Guide
Inspect
Measure objects

3. Vision-Based Metrology History
Vision-Based Metrology inspection systems evolved from the combination of microscopes, cameras and optical comparators

4. Vision-Based Metrology History
Vision-Based Metrology is extensively used in general industrial applications such as the manufacturing of:
Electronics
Automotive
Aerospace
Pharmaceutical
Consumer products
Vision-Based Metrology is being utilized in the automatic identification and data collection market as a complementary or alternative technology to traditional laser scanning devices for reading bar codes

5. Vision-Based Metrology History
Early systems were integrated into packaging lines for optical character recognition and proved to be a reliable way to check the accuracy of product codes and label information.
Today, high-resolution cameras, advances in software and imaging processors, and the availability of powerful, inexpensive compact computers have made vision systems faster and more reliable than ever.

6. When does a company need a vision system?
Some products require 100-percent product inspection with documented inspection results.
In other cases a vision system may be needed for high production product inspection
Vision systems provide a means of increasing yield-that is, the ratio of good parts to bad parts.
When a serial defect is spotted, the system not only recognizes it but can stop the conveyor and inform the operator of the defect and its magnitude.
The yield factor is particularly important in manufacturing industries that produce large volumes, as in the compact disc and pharmaceutical industries.

7. Vision-Based Metrology in Automobile Wrecks
Vision Based Metrology is now being used to focus on the movement of objects along with their deformation
This is being used in many car wreck investigations

8. Vision-Based Metrology in Automobile Wrecks
Two consecutive images were grabbed from a high speed video sequence
A displacement field of a car at a certain moment is presented

9. Vision-Based Metrology in Automobile Wrecks
The deformation pattern was obtained from the principle vector analysis.
This analysis allows the representation of the deformation pattern.

10. Vision-Based Metrology in Weather Patterns
Vision-Based Metrology has also been used to study weather patterns
Flow information from a tornado is able to be extracted for scientists to attempt to learn more about them

11. ICS/INEX
INEX can be traced all the way back to the early 1900’s when they developed a system called OPTI-Tron which inspected bottle beverages
The OPTI-Tron system would eventually become the OPTISCAN bottle inspector; a worldwide standard in container inspection with thousands of units installed.
The introduction of the company's SuperInspector became the first commercial machine inspection system to integrate camera and computer technologies

12. PPT Vision
Founded in 1982, PPT specializes in industrial applications where accuracy, repeatability, high speed and flexibility are important requirements.
They are the world leader in the design and manufacture of completely digital 2D machine vision systems.
PPT's 2D machine vision product line is sold on a global basis to end- users, system integrators, and OEM's
PPT is involved primarily in:
Electronics
Semiconductor components
Automotive
Medical devices
Pharmaceutical and packaged goods

13. Quality Inspection at Work
Polymer Membrane:
Note texture defects
Machined Aluminum Bar:
Note tool-chatter marks
Stamped Metal Package:
Note scratch on grinded surface

14. Vision System Pictures
Missing Fuse

15. References