9 April 2014 Identification of suitable fundus images using automated quality assessment methods
Author Affiliations +
J. of Biomedical Optics, 19(4), 046006 (2014). doi:10.1117/1.JBO.19.4.046006
Retinal image quality assessment (IQA) is a crucial process for automated retinal image analysis systems to obtain an accurate and successful diagnosis of retinal diseases. Consequently, the first step in a good retinal image analysis system is measuring the quality of the input image. We present an approach for finding medically suitable retinal images for retinal diagnosis. We used a three-class grading system that consists of good, bad, and outlier classes. We created a retinal image quality dataset with a total of 216 consecutive images called the Diabetic Retinopathy Image Database. We identified the suitable images within the good images for automatic retinal image analysis systems using a novel method. Subsequently, we evaluated our retinal image suitability approach using the Digital Retinal Images for Vessel Extraction and Standard Diabetic Retinopathy Database Calibration level 1 public datasets. The results were measured through the F1 metric, which is a harmonic mean of precision and recall metrics. The highest F1 scores of the IQA tests were 99.60%, 96.50%, and 85.00% for good, bad, and outlier classes, respectively. Additionally, the accuracy of our suitable image detection approach was 98.08%. Our approach can be integrated into any automatic retinal analysis system with sufficient performance scores.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Ugur Sevik, Cemal Kose, Tolga Berber, Hidayet Erdol, "Identification of suitable fundus images using automated quality assessment methods," Journal of Biomedical Optics 19(4), 046006 (9 April 2014). https://doi.org/10.1117/1.JBO.19.4.046006

Image quality

Image segmentation

Image processing

Image analysis

Feature extraction

Feature selection

Blood vessels


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