Image processing software offers in-line control of biomarker

An Eye Vision Technology customer was using a machine to apply the bio marker with the help of a capillary onto a glass plate.

A motor controller triggers a smart camera (such as the EyeCheck series smart cameras) asynchronously to check the completeness of the spot.

The latest applied spot should be checked for completeness. For this, a required position has to be sought in the distance of X, which must be taught beforehand. The biomarker then gets measured in height, width and surface. As soon as the drop is positioned on the array the diameter (80-200µm) is measured instantly.

For the inspection program, the "Count Objects“ command was used to find the spot, whether too big or too small. The measurement results are then sent to a PC, which has to decide if the application of the spot on the array has to be repeated or if, perhaps, the capillary is empty.

The evaluation of the biomarker is then carried out on the camera. The required values of width, height and area are already set and the EyeCheck smart camera assesses the biomarker. In case the result is OK, a digital output is set and the motor controller is continuing with the application of biomarkers. In case the spot is faulty, the motor controller stops.