Skip to main content

Table 2 A summary of the minimum, maximum and standard deviation values of the error \(\delta_{k}\) obtained for 110 patients for all the compared methods: Sobel, Roberts, Canny and the author’s (proposed) method of outer corneal edge detection in images from the Corvis® ST tonometer

From: A new method for detecting the outer corneal contour in images from an ultra-fast Scheimpflug camera

Methodδk(min) (%)δk(max) (%)std (%)
Proposed0.111.250.13
Sobel0.3530.025.76
Roberts0.2647.458.66
Canny0.6128.362.78