System and method for removal of corneal specular reflections in eye imaging

Abstract

Methods and devices are disclosed for pulsed LED illumination, image capture processing to remove corneal specular reflections in torsion images for iris registration. A system may first and second infrared LED light sources and a torsion camera to capture images during illumination of a patient's eye based on a pulsed synchronization signal. Within a period of time, a first image is captured having a reflection from the first LED light source and then a second image is captured having a reflection from the second LED light source. The first and second images are processed to remove respective areas having corneal specular reflections and combined into a third image not including any specular reflections. Various embodiments are disclosed including implementations with excimer and femtosecond laser eye surgery platforms.

Dependencies are inferred from the claim text.