论文标题
来自OCT图像的位移现场估计利用斑点信息,并具有定量弹性图中的应用
Displacement field estimation from OCT images utilizing speckle information with applications in quantitative elastography
论文作者
论文摘要
在本文中,我们考虑了估计对象的内部位移场的问题,该物体的内部位移场受到了变形,从光学相干断层扫描(OCT)图像(OCT)图像进行了变形。为了估计内部位移场,我们提出了一种新型算法,该算法利用特定的斑点信息来增强运动估计的质量。我们根据模拟和实验数据提出数值结果,以证明我们的方法的实用性,特别是当用于定量弹性图时,当材料参数基于内部位移场中的第二步估算时。
In this paper, we consider the problem of estimating the internal displacement field of an object which is being subjected to a deformation, from Optical Coherence Tomography (OCT) images before and after compression. For the estimation of the internal displacement field we propose a novel algorithm, which utilizes particular speckle information to enhance the quality of the motion estimation. We present numerical results based on both simulated and experimental data in order to demonstrate the usefulness of our approach, in particular when applied for quantitative elastography, when the material parameters are estimated in a second step based on the internal displacement field.