本文選題：眼底圖像 + 血管特征向量��； 參考：《儀器儀表學(xué)報(bào)》2017年09期

【摘要】：視網(wǎng)膜動(dòng)靜脈管徑以及動(dòng)靜脈比值可以反映高血壓患者腦卒中發(fā)病的風(fēng)險(xiǎn),因此對(duì)視網(wǎng)膜血管直徑的量化分析有助于病情的風(fēng)險(xiǎn)評(píng)估和防治工作。提出了一種視網(wǎng)膜動(dòng)靜脈自動(dòng)分類(lèi)和血管直徑的自動(dòng)測(cè)量方法。首先,對(duì)視網(wǎng)膜血管網(wǎng)絡(luò)進(jìn)行分割,并獲取中心線;其次選取了不同顏色空間中的不同通道分量,提出了基于中心線像素和血管像素的特征向量、血管寬度和中心光反射的特征向量,采用K均值聚類(lèi)實(shí)現(xiàn)感興趣測(cè)量區(qū)域內(nèi)動(dòng)靜脈的自動(dòng)分類(lèi);最后統(tǒng)計(jì)血管橫截面的灰度曲線分布,利用高斯曲線進(jìn)行擬合,根據(jù)半高度全寬獲取動(dòng)靜脈寬度。分別對(duì)REVIEW和DRIVE數(shù)據(jù)庫(kù)進(jìn)行實(shí)驗(yàn),驗(yàn)證了本方法的有效性。
[Abstract]:Retinal arteriovenous diameter and arteriovenous ratio can reflect the risk of stroke in hypertensive patients, so quantitative analysis of retinal vascular diameter is helpful to risk assessment and prevention of the disease. A method for automatic classification of retinal arteriovenous vessels and automatic measurement of vessel diameters is presented. Firstly, the retinal vascular network is segmented and the center line is obtained. Secondly, different channel components in different color spaces are selected, and the feature vectors based on the center line pixels and vascular pixels are proposed. The feature vector of vascular width and central light reflection is used to realize the automatic classification of arteries and veins in the area of interest by K-means clustering. Finally, the grayscale curve distribution of the cross section of blood vessel is calculated and fitted by Gao Si curve. The arterial and venous widths are obtained according to the full width of the half height. Experiments on REVIEW and DRIVE databases are carried out to verify the effectiveness of this method.
【作者單位】： 福州大學(xué)物理與信息工程學(xué)院;福建農(nóng)林大學(xué)計(jì)算機(jī)與信息學(xué)院;
【基金】：福建省自然科學(xué)面上基金(2016J01297) 福建省中青年教師教育科研項(xiàng)目(JAT160398,JAT160070)資助
【分類(lèi)號(hào)】：R318;TP391.41

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本文編號(hào)：1919939