CONTROLLING A VIEWING PARAMETER

摘要

The invention relates to a method (100) of controlling a viewing parameter for viewing an image on a display for displaying the image, the method comprising a determining step (110) for determining a view of interest within the image, an identifying step (120) for identifying a field of view within the display, a controlling step (130) for controlling the viewing parameter based on the field of view, and a computing step (140) for computing the image based on the controlled viewing parameter and on the field of view, which field of view comprises the view of interest, wherein the field of view is identified using an eye-tracking system for tracking an eye of a user. The method (100) provides a way of controlling the viewing parameter which reduces interruptions in viewing the view of interest. This is particularly useful for a surgeon performing a procedure on a patient using a surgical tool navigation system, when the surgeon needs to adjust a viewing parameter while watching the surgical tool and a surrounding anatomic structure displayed by the navigation system.