Multiscale AM-FM methods for diabetic retinopathy lesion detection.
Multiscale AM-FM methods for diabetic retinopathy lesion detection.
复制标题
DOI：
10.1109/tmi.2009.2037146
复制
发表时间：
2010-02
影响因子：
10.6
通讯作者：
Soliz P
中科院分区：
文献类型：
--
作者：
Agurto C;Murray V;Barriga E;Murillo S;Pattichis M;Davis H;Russell S;Abramoff M;Soliz P
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 (ETDRS). We use 120 regions of 40×40 pixels containing 4 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 features 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.
