The resulting data goes to a computer or robot controller. Machine vision is similar in complexity to voice recognition . Two important specifications in any vision system are the sensitivity and the resolution. Sensitivity is the ability of a machine to see in dim light, or to detect weak impulses at invisible wavelengths.
Resolution is the extent to which a machine can differentiate between objects.
In general, the better the resolution, the more confined the field of vision. Sensitivity and resolution are interdependent. All other factors held constant, increasing the sensitivity reduces the resolution, and improving the resolution reduces the sensitivity. Video cameras can be sensitive to a range of wavelengths much wider than this. Machine vision is used in various industrial and medical applications.