CHECK! A generic and specific industrial inspection tool

The paper presents an overview of CHECK, an “inspection and control” package to perform automatic quality control of industrial components, specifically electronic boards. This application has grown out of a set of tools designed initially to aid the development of point distribution models (PDMs) pioneered at the Wolfson Image Analysts Unit in Manchester. These models are both generic and specific. Generic, because they can be applied to any image classification problem. Specific, because they aim at the full interpretation of the variability of the objects to be modelled. The underlying vision processing techniques are based on statistical pattern matching. Two synergetic approaches have been followed. The system is trained to recognise the components from both their shape and their grey level appearance