Ultraviolet disinfection with augmented reality monitoring

An augmented reality (AR) ultraviolet (UV) disinfection system comprising:

• a UV source configured to irradiate a target with UV radiation,
• an imaging unit configured to image the target and derive depth information concerning the imaged target,
• at least one optical element in the visible range, configured to indicate upon the target approximate edges of a region of the target that is illuminated by UV irradiation and/or one or more approximated line of equal illumination intensity within a region of the target that is illuminated by UV irradiation to allow the user enhancement of the level of disinfection of target,
• an AR processing unit configured to:
• estimate a UV radiation intensity delivered to multiple locations on the target by tempo-spatially integrating an intensity of the irradiated UV with respect to temporal and geometrical relations between the UV source and the locations on the target, within the indicated region, as provided by the derived depth information, and
• estimate a level of disinfection of the multiple locations on the target with respect to the estimated UV radiation intensity delivered thereto, and
• a display configured to visually present the estimated level of disinfection of the multiple locations upon a displayed image of the target.