The Connectors Quality Control for electronic devices is an application developed in VisionOK II.
This application works controlling the measures of the relative positions of pins and tongue-pieces within the connectors.
Projects: USM-C, USM-D, USM2010 , PL2, PL3, PL6, PL7
The visual inspection of connectors for quality assessment has two major well known problems, namely: 1) On the one hand, it is needed to localize the connector’s pins, which have a very variable aspect due to being metallic, and which show instable specular reflexion patterns, with resolutions close to 1/100 millimetres. Since the field depth is minimal at these resolutions, it is possible that certain connectors are shown in focus while others appear defocused. We successfully implemented a modelling algorithm which takes into account the different appearances associated to defocus in order to represent the variability in pins for their accurate localization.