Method and apparatus for recognizing a structure to be applied onto a substrate with multiple cameras

A method for recognizing a structure to be applied onto a substrate, the structure being at least one adhesive line, the method comprising:

• applying the structure onto the substrate by an application facility having a plurality of cameras;
• and
• monitoring the structure applied onto the substrate by the application facility utilizing the cameras, the cameras having at least one overlapping area directed at the applied structure;
• wherein the edges of the adhesive line of the applied structure are determined on a virtual surrounding track around the application facility, wherein each camera monitors a segment of the surrounding track, the track essentially in the form of a circular line forming a circular caliper and the applied structure virtually intersects the surrounding track after being applied onto the substrate, wherein angle values of the circular line range from 0° to 360° to form a global coordinate system, a segment of the circular line having adjacent overlapping areas assigned to the images of the individual cameras and further automatically switching from one camera to the next camera when the adhesive line progresses from the segment of the circular line of one camera via the overlapping area to the segment of the circular line of a different camera.