Corneal surface reconstruction algorithm that uses Zernike polynomial representation.
We developed an algorithm that directly determines Zernike coefficients for the corneal anterior surface derived from the reflection image of a stimulus with pseudorandom encoding. This algorithm does not need to include calculation of corneal height maps. The numerical performance of the algorithm is good. It has the potential of determining corneal shape with submicrometer accuracy in obtaining Zernike coefficients. When applied to real eye measurements the accuracy of the procedure will be limited by the topographer that is used.
Sicam
Victor Arni D P
VA
Department of Physics and Medical Technology (FMT), Vrije University Medical Centre, De Boelelaan 1118, 1081 HV Amsterdam, The Netherlands.
Coppens
Joris
J
van den Berg
Tom J T P
TJ
van der Heijde
Rob G L
RG
D000465:Algorithms; D019781:Corneal Topography; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008962:Models, Theoretical; D055095:Optics and Photonics