Ophthalmologic visualization system
    11.
    发明申请
    Ophthalmologic visualization system 有权
    眼科可视化系统

    公开(公告)号:US20110019150A1

    公开(公告)日:2011-01-27

    申请号:US12801689

    申请日:2010-06-21

    IPC分类号: A61B3/11 A61B3/14

    摘要: A method determines the position and/or radius of the limbus and/or the position and/or radius of the pupil of a patient eye. In the method, an image of the patient eye is obtained and a plurality of different ring-shaped comparison objects having respective radii and respective centers are provided. The image is correlated with the plurality of comparison objects to yield a local best match between the image and the comparison objects when there is a coincidence of one of the ring-shaped comparison objects and a ring-shaped jump in brightness in the image having the same radius and the same center. The comparison objects having a local best match with the image are determined. Thereafter, the position of the center of the comparison object having a local best match with the image is selected as the position of the center of the limbus and/or the position of the center of the pupil.

    摘要翻译: 方法确定角膜缘的位置和/或半径和/或患者眼睛的瞳孔的位置和/或半径。 在该方法中,获得患者眼睛的图像,并且提供具有各自的半径和各个中心的多个不同的环形比较对象。 该图像与多个比较对象相关联,以便当存在一个环形比较对象之间的一个并且在具有该形状的比较对象的图像中的亮度的环形跳跃时,在图像和比较对象之间产生局部最佳匹配 相同的半径和相同的中心。 确定与图像具有局部最佳匹配的比较对象。 此后,选择与图像具有局部最佳匹配的比较对象的中心的位置作为角膜缘中心的位​​置和/或瞳孔中心的位置。