Abstract
The Retinopathy of Prematurity (ROP) is an ocular pathological disorder of the retinal blood vessels in premature infants and low birth weight infants. It is essential that those caring for premature infants should know who is at risk of ROP and their severity stage. It is also important that when screening must begin and how often these infants need to be examined otherwise the progression lead most severe stage and can cause blindness. The contrast stretching method has been utilized to enhance the ROP color image. Then an automatic method Isotropic Un-decimated Wavelet Transform (IUWT) has been proposed to extract the abnormal retinal blood vessel and measure its width and tortuosity. The ridge formation of this pathological disorder has also been obtained by the IUWT. The quantitative measurements of mean diameter, standard deviation, tortuosity, length of retinal blood vessel and ridge have been considered and computed the exact severity stage of ROP. The effectiveness of the proposed method has been verified through machine vision techniques and the results obtained are encouraged by experts. Automatic ROP screening system comprises several advantages, like a substantial time reduction of ophthalmologists in diagnosis, a non ophthalmologist can provide stage of ROP, improving the sensitivity of the test and a better accuracy in diagnosis.
Highlights
Image processing, analysis and computer vision techniques are widely used today in all fields of medical sciences and especially to modern ophthalmology, as it is heavily dependent as visually oriented signs
To overcome the disadvantages and efficient quantification of retinal vessels and ridges presented in the Retinopathy of Prematurity (ROP) images, a new wavelet based methodology has been proposed in this study
The efficient means of combining background subtraction along with noise and high-frequency content inhibition using an approximately Gaussian filter have become the outcomes of Isotropic Un-decimated Wavelet Transform (IUWT) execution on ROP images
Summary
Analysis and computer vision techniques are widely used today in all fields of medical sciences and especially to modern ophthalmology, as it is heavily dependent as visually oriented signs. Retinopathy of Prematurity (ROP) is an ocular disease of premature infants and it can cause blindness at high risk pre-threshold stages (Early Treatment of Retinopathy of Prematurity Cooperative Group (ETROP), 2003). It affects immature vasculature in the eyes of premature babies (Wittchow, 2003; Mounir et al, 2008). It can be mild with no visual defects, or it may become aggressive with new blood vessel formation (neovascularization) and progress to retinal detachment and blindness (International Committee for the Classification of Retinopathy of Prematurity (International Committee for the Classification of Retinopathy of Prematurity, 2005). All babies who less than 1800 g birth weight or younger than 32 weeks gestational age at birth are at risk of developing ROP
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Research Journal of Applied Sciences, Engineering and Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
