一种虹膜膨隆形态提取与建模方法的研究  

Study of Iris′ Deformation Morphology Extraction and Modeling Method

作　　者：全海英[1] 孙峥[1] 雷玉玺[1] 曹海勇[1] 薄雪峰[1] 刘敬华[1] 杨进[1] 张昆亚[1] 邓军民[1] 刘志成[1] 

机构地区：[1]首都医科大学生物医学工程学院,北京100069

出　　处：《生物医学工程研究》2009年第3期193-196,共4页Journal Of Biomedical Engineering Research

基　　金：国家自然科学基金(30600150);教育部科学技术研究重点项目(207001);北京市教育委员会科技发展计划项目(kz200710011010);北京市人才强教计划-中青年骨干教师项目

摘　　要：为研究虹膜膨隆形态与瞳孔阻滞的关系,提出了一种根据裂隙图像提取虹膜膨隆形态的方法。通过灰度变换、二值化处理、角度校正及曲线拟合等方法对图像进行处理。建立了不同压强差下无晶体抬升时虹膜膨隆形态二维曲线及三维曲面模型;以及相同压强差下晶体抬升高度不同时虹膜膨隆形态的二维曲线及三维曲面模型。从实验结果可以看出,随着压强差的不断增大,虹膜逐渐膨隆;在相同的压强差下,相对于没有晶体抬升,有晶体抬升的虹膜膨隆程度更大。To study the relationship between iris＇s deformation morphology and pupillary block, a method of extracting iris＇s deformation morphology according to fracture light image was presented on this paper. Some image processing methods were used such as gayscale transformation, binaryzation processing, angle correct and curve fitting. The 2D curve and 3D surface modeling of iris＇ s deformation morphology were build at the different pressure difference with crystal non - rising and at the same pressure difference with crystal rising. According to the experiment result, the iris＇s morphology is deformated with the higher pressure difference, and contrast to the crystal non- rising situation, at the same pressure difference, the iris＇s morphology is deformated with the higher crystal rising altitude.

关 键 词：闭角型青光眼 虹膜 瞳孔阻滞 曲线拟合 三维建模 

分 类 号：R318[医药卫生—生物医学工程] TP391[医药卫生—基础医学]