A spline surface algorithm for reconstruction of corneal topography from a videokeratographic reflection pattern

A videokeratograph quantifies one or more aspects of corneal shape by the computer analysis of a digital image. The image is the reflection formed by illuminating the cornea with a known source pattern. The type of shape information recovered and the accuracy of this information depend upon properti...

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Veröffentlicht in:	Optometry and vision science 1995-11, Vol.72 (11), p.821-827
Hauptverfasser:	Halstead, M A, Barsky, B A, Klein, S A, Mandell, R B
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Cornea - anatomy & histology Humans Image Processing, Computer-Assisted - methods Light Models, Biological
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A videokeratograph quantifies one or more aspects of corneal shape by the computer analysis of a digital image. The image is the reflection formed by illuminating the cornea with a known source pattern. The type of shape information recovered and the accuracy of this information depend upon properties of the computer algorithm used in the analysis. We present a new algorithm that recovers a polynomial spline description of corneal depth.
ISSN:	1040-5488
DOI:	10.1097/00006324-199511000-00008