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Multiscale AM-FM methods for diabetic retinopathy lesion detection
- Source :
- IEEE transactions on medical imaging. 29(2)
- Publication Year :
- 2010
-
Abstract
- In this paper, we propose the use of multiscale amplitude-modulation-frequency-modulation (AM-FM) methods for discriminating between normal and pathological retinal images. The method presented in this paper is tested using standard images from the early treatment diabetic retinopathy study. We use 120 regions of 40 × 40 pixels containing four types of lesions commonly associated with diabetic retinopathy (DR) and two types of normal retinal regions that were manually selected by a trained analyst. The region types included microaneurysms, exudates, neovascularization on the retina, hemorrhages, normal retinal background, and normal vessels patterns. The cumulative distribution functions of the instantaneous amplitude, the instantaneous frequency magnitude, and the relative instantaneous frequency angle from multiple scales are used as texture feature vectors. We use distance metrics between the extracted feature vectors to measure interstructure similarity. Our results demonstrate a statistical differentiation of normal retinal structures and pathological lesions based on AM-FM features. We further demonstrate our AM-FM methodology by applying it to classification of retinal images from the MESSIDOR database. Overall, the proposed methodology shows significant capability for use in automatic DR screening.
- Subjects :
- Databases, Factual
Feature vector
Feature extraction
Hemorrhage
Retinal Neovascularization
Instantaneous phase
Retina
Statistics, Nonparametric
Article
chemistry.chemical_compound
Image texture
Image Interpretation, Computer-Assisted
medicine
Photography
Humans
Computer vision
Electrical and Electronic Engineering
Diabetic Retinopathy
Radiological and Ultrasound Technology
business.industry
Retinal Vessels
Retinal
Diabetic retinopathy
Exudates and Transudates
medicine.disease
Aneurysm
Computer Science Applications
medicine.anatomical_structure
chemistry
Artificial intelligence
business
Software
Retinopathy
Subjects
Details
- ISSN :
- 1558254X
- Volume :
- 29
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- IEEE transactions on medical imaging
- Accession number :
- edsair.doi.dedup.....86ac4c7eab7a1f209aff0adefb7abc44