Retinal image registration under the assumption of a spherical eye
Retinal image registration under the assumption of a spherical eye
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DOI：
10.1016/j.compmedimag.2016.06.006
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发表时间：
2017-01-01
影响因子：
5.7
通讯作者：
Argyros, Antonis A.
中科院分区：
文献类型：
--
作者：
Hernandez-Matas, Carlos;Zabulis, Xenophon;Argyros, Antonis A.
我们提出了一种配准一对视网膜图像的方法。所提出的方法采用点对应并假设人眼具有球形形状。图像配准问题被表述为 3D 姿态估计问题，通过估计与获取两个图像的视图相关的刚性变换来解决。给定此估计，每个图像都可以在另一个图像上扭曲，以便具有相同坐标的像素对相同的视网膜点进行成像。广泛的实验评估表明，与最先进的方法相比，准确性有所提高，并且对噪声和虚假关键点匹配具有鲁棒性。实验还表明该方法适用于对可能表现出变化的不同检查的图像进行比较分析及其对诊断支持的适用性。 (C) 2016 Elsevier Ltd. 保留所有权利。
We propose a method for registering a pair of retinal images. The proposed approach employs point correspondences and assumes that the human eye has a spherical shape. The image registration problem is formulated as a 3D pose estimation problem, solved by estimating the rigid transformation that relates the views from which the two images were acquired. Given this estimate, each image can be warped upon the other so that pixels with the same coordinates image the same retinal point. Extensive experimental evaluation shows improved accuracy over state of the art methods, as well as robustness to noise and spurious keypoint matches. Experiments also indicate the method's applicability to the comparative analysis of images from different examinations that may exhibit changes and its applicability to diagnostic support. (C) 2016 Elsevier Ltd. All rights reserved.