A company that bottles a variety of industrial chemicals has heard of your success solving...

A company that bottles a variety of industrial chemicals has heard of your success solving imaging problems and hires you to design an approach for detecting when bottles are not full. The bottles appear as shown in the following figure as they move along a conveyor line past an automatic filling and capping station. A bottle is considered imperfectly filled when the level of the liquid is below the midway point between the bottom of the neck and the shoulder of the bottle. The shoulder is defined as the region of the bottle where the sides and slanted portion of the bottle intersect. The bottles are moving, but the company has an imaging system equipped with a illumination flash front end that effectively stops motion, so you will be given images that look very close to the sample shown here. Based on the material you have learned up to this point, propose a solution for detecting bottles that are not filled properly. State clearly all assumptions that you make and that are likely to impact the solution you propose.