Automated visual inspection of prefilled syringes

A system for measuring an air gap in a syringe having a plunger and containing a fluid, the system comprising:

• a syringe imaging device;
• and
• one or more processors configured to:
• control a syringe imaging device to capture a first image of at least a portion of the syringe from a first rotational angle around a central syringe axis of the syringe with respect to a first central imaging axis of the syringe imaging device;
• control the syringe imaging device to capture a second image of at least a portion of the syringe from a second rotational angle around the central syringe axis with respect to a second central imaging axis of the syringe imaging device;
• and
• determine an air gap measurement between the plunger and the fluid by analyzing at least the first image and the second image.

A non-transitory computer-readable medium storing computer-readable instructions that, when executed by one or more processors, causes the one or more processors to:

• control a syringe imaging device to capture a first image of at least a portion of the syringe having a plunger and containing a fluid from a first rotational angle around a central syringe axis of the syringe with respect to a first central imaging axis of the syringe imaging device;
• control the syringe imaging device to capture a second image of at least a portion of the syringe from a second rotational angle around the central syringe axis with respect to a second central imaging axis of the syringe imaging device;
• and
• determine an air gap measurement between the plunger and the fluid by analyzing at least the first image and the second image.