Fluorescent imaging device

A fluorescent imaging device comprising:

• a light source unit including a first light source for radiating excitation light for a fluorescent agent administered to a subject, a second light source for radiating visible illumination light in a visible wavelength range, and a third light source for radiating non-visible light outside the visible wavelength range;
• an imager including an optical filter, the optical filter being configured to separate light in the visible wavelength range from both fluorescence outside the visible wavelength range excited by the excitation light and the non-visible light, the imager being configured to capture a fluorescent image based on the fluorescence, a visible image based on reflected light of the visible illumination light, and a non-visible image based on reflected light of the non-visible light;
• and
• a tracking processor that is operable to perform moving-body tracking for a region of interest that is set in an image based on at least the non-visible image.