一种用于从视频角膜照相反射图案重建角膜地形图的样条曲面算法。

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

作者信息

Halstead M A, Barsky B A, Klein S A, Mandell R B

机构信息

Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, USA.

出版信息

Optom Vis Sci. 1995 Nov;72(11):821-7. doi: 10.1097/00006324-199511000-00008.

DOI:10.1097/00006324-199511000-00008

PMID:8587771

Abstract

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.

摘要

视频角膜地形图仪通过对数字图像进行计算机分析来量化角膜形状的一个或多个方面。该图像是用已知光源模式照亮角膜所形成的反射。恢复的形状信息类型及其准确性取决于分析中使用的计算机算法的特性。我们提出了一种新算法，该算法可恢复角膜深度的多项式样条描述。