Determination of droplet characteristics

A system for detection and tracking of droplets sprayed from a nozzle, the system comprising:

• a sensor configured to observe droplets sprayed from the nozzle;
• a frame extractor module configured to obtain data from the sensor;
• a droplet shape and size extraction module configured to extract information from the data obtained by the frame extractor module;
• a droplet tracking module configured to track individual droplets using the information extracted by the droplet shape and size extraction module;
• and
• a data log module configured to store a list of droplets and information associated with the droplets,
• wherein the droplet tracking module is configured to update values stored in the data log module, including determining whether a current position of an individual droplet is outside an image frame, and when the current position is outside the image frame, removing the individual droplet and information associated with the individual droplet from the data log module.