Abstract: A method of facilitating controlled particle deposition from a droplet dispenser involves receiving at least one pre-dispensed image of a dispensing portion of the droplet dispenser, the dispensing portion including fluid to be dispensed in a subject droplet to a subject target region, receiving at least one post-dispensed image of the dispensing portion of the droplet dispenser after the subject droplet has been dispensed, comparing the at least one pre-dispensed image and the at least one post-dispensed image to determine a subject droplet particle count representing a count of particles included in the subject droplet, and producing signals for associating a representation of the subject droplet particle count with the subject target region. Other methods, apparatuses, systems, and non-transitory computer readable media are disclosed.