Title
Illumination correction and contrast equalization in colour fundus images
Abstract
A method for correction of non-uniform illumination in colour fundus images based on the B-spline approximation of the illumination surface is presented. The control points for B-splines are determined from an original image, separately from the red, green and blue channel. The estimated illumination surface is used in a multiplicative model for fast correction. The proposed approach has been subjectively tested on new publicly available retinal image database DRIIL (Digital Retinal Images for ILumination correction), which contains 165 images. Objective testing has been conducted by investigating the influence of the proposed method on blood-vessel segmentation using another high resolution fundus image dataset of healthy and diabetic patients.
Year
Venue
Keywords
2011
Barcelona
eye,image colour analysis,image segmentation,lighting,medical image processing,splines (mathematics),b-spline approximation,driil retinal image database,digital retinal images for ilumination correction,blood-vessel segmentation,colour fundus images,contrast equalization,illumination surface,nonuniform illumination correction,mathematical model,adaptive optics,optical imaging
Field
DocType
ISSN
Computer vision,Multiplicative model,Equalization (audio),Segmentation,Computer science,Fundus (eye),Image segmentation,Retinal image,Artificial intelligence,Fundus image,Adaptive optics
Conference
2076-1465
Citations 
PageRank 
References 
3
0.44
0
Authors
4
Name
Order
Citations
PageRank
Radim Kolár140.93
Jan Odstrcilík231.12
Jirí Jan3799.18
Vratislav Harabis430.44