Optimum hierarchical segmentation of OCT images in retina based on macular distance

Jian-feng LI; Yi-zhou LU

doi:10.11959/j.issn.1000-436x.2017087

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Optimum hierarchical segmentation of OCT images in retina based on macular distance

Papers | 更新时间：2024-06-05

- Optimum hierarchical segmentation of OCT images in retina based on macular distance
- Journal on Communications Vol. 38, Issue 4, Pages: 158-165(2017)
- 作者机构：
  
  1. 吉首大学信息科学与工程学院，湖南吉首 416000
  2. 中南大学信息科学与工程学院，湖南长沙 410083
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61562029);The National Natural Science Foundation of China(61262032);The Natural Science Foundation of Hunan Province(2015JJ3100)
- DOI：10.11959/j.issn.1000-436x.2017087
  CLC： TP391.41
- Online First：2017-04，
  
  Published：25 April 2017
- 稿件说明：
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Jian-feng LI, Yi-zhou LU. Optimum hierarchical segmentation of OCT images in retina based on macular distance[J]. Journal on Communications, 2017, 38(4): 158-165.
DOI：

Jian-feng LI, Yi-zhou LU. Optimum hierarchical segmentation of OCT images in retina based on macular distance[J]. Journal on Communications, 2017, 38(4): 158-165. DOI： 10.11959/j.issn.1000-436x.2017087.

摘要

视网膜分层是视盘结构三维分析、青光眼三维特征提取的基础，为改善视网膜 OCT 图像的层次分割效果，提出了一个基于强度的二维视网膜黄斑 OCT 图像多层结构分割算法。分割方法通过预处理、滤波等操作，计算出视网膜OCT图像中每个A-scan的强度和强度梯度值，能很好地分割出视网膜OCT图像中的RNFL上界、IS和OS分界线、RPE层下界等，并用最短距离计算的黄斑距离策略对黄斑部位分层结果进行再优化，从而实现视网膜OCT图像的层次分割。实验结果表明，所提算法优化效果好，时间复杂度低，运行速度较快。

Abstract

Retina layering was the basis of optic disc structure analysis and 3D feature extraction of glaucoma.In order to improve the layering effect of retinal OCT images

an intensity based multilayer segmentation algorithm for two-dimensional retinal OCT images was proposed.Through preprocessing and filtering operation

the segmentation algorithm calculated the intensity and intensity gradient of each A-scan in the retinal OCT image to obtain the upper bound RNFL

the dividing line IS and OS

and the lower bound RPE.Then macular distance strategy

calculated by the shortest distance

was used to further optimize the layering result of macular area

so as to achieve layering segmentation of the retinal OCT images.The experimental results show the algorithm has good optimization effect

low time complexity and fast running speed.

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references

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