Video Display System Having an Adaptive Overlay

An endoscopic system configured to generate a video image of a surgical site, the endoscopic system comprising:

• a light source configured to transmit electromagnetic radiation in a visible spectrum and in a near infrared spectrum;
• an imager configured to acquire an image data from the light source;
• a display for displaying the video image of the surgical site;
• and
• an image processor configured to process the image data so as to generate a first video image displaying a white light video of the surgical site, the first video image having a first predetermined area and being displayed on the display, and a second video image overlaid on the first video image, the second video image displaying a fluorescent light video centered on the surgical site, the second video image having a second predetermined area, the second predetermined area being smaller than the first predetermined area so as to define a boundary of white light video.