CheckSIS –
Performance assessment
for automatic surface
inspection systems

In modern steel production, automatic surface inspection systems (ASIS) are commonly used to detect and classify surface defects on strip steel
To “measure” the quality of a steel surface in the sense of measurement engineering is still an unsolved problem

Implementation of methods for the periodic online assessment of correct ASIS calibration and detection of decreasing system performance by means of artificial defects
Determination of methods for precise position synchronization of surface defect data provided by two ASIS installed at the same line and creation of more reliable surface defect data by online combination of the results
Definition of a first official standard for ASIS calibration and supervision procedures

Proven long-term reliability of ASIS and guaranteed minimum performance for detection and classification of surface critical defects
More comparable results of different ASIS considering different detection sensitivities
Improved repeatability (same coil same ASIS) and reproducibility (same coil different ASIS) of ASIS results

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