Fraunhofer-Gesellschaft

Fraunhofer-Gesellschaft

Terahertz waves for non-destructive and contactless testing — © Fraunhofer ITWM
Terahertz waves penetrate electrically non-conductive materials, are harmless to health and can be applied non-destructively and without contact.

Range of application and classification of industrial image processing

© Fraunhofer ITWM

Range of application and classification of industrial image processing

Where can industrial image processing be used?

The possible applications of digital image processing in industrial applications are wide-ranging and are therefore the focus of many application industries. The spectrum of technologies used ranges from 3D measurement methods and X-ray technology to heat flow thermography and terahertz measurement technology. In the following a possible classification of inspection tasks is presented.

Classification of inspection tasks in industrial image processing

© Fraunhofer iFF

Object identification

Acquisition of

Shape and geometry
Dimension
Structure/topology, color, texture

© Fraunhofer IPT

Completeness check

Yes/no statement (instead of classification)
Check for presence of all individual parts before automatic assembly or after production step
Condition detection: does the object have certain characteristics?

© Fraunhofer IFF

Position detection

Position and orientation of an object point
Two-dimensional or three-dimensional space
Use of feature calculations or template matching methods

© Fraunhofer IFF

Form and dimension
inspection

Metrological acquisition of geometric values
Early detection of faulty parts
Good parts must comply with tolerances
Application e.g. in toolmaking and stamping systems

© Fraunhofer IFF

Surface inspection

Waviness, roughness
Local anomalies, color, texture
Surface defects
Contamination

© Fraunhofer EZRT

Inspection of the component interior

Microwave and terahertz radiation
Polarization imaging
X-rays
Ultrasound
Heat flow thermography
Eddy current
etc.

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