光学学报, 2019, 39 (3): 0311003, 网络出版: 2019-05-10
光学相干层析成像图像中角膜厚度的自动测量方法 下载: 1246次
Automatic Measurement Method for Corneal Thickness of Optical Coherence Tomography Images
成像系统 光学相干层析成像 边界跟踪 曲线拟合 角膜厚度自动测量 imaging systems optical coherence tomography boundary tracking curve fitting automatic measurement of corneal thickness
摘要
提出了基于边界跟踪、轮廓定位和曲线拟合的光学相干层析成像(OCT)图像中角膜厚度的自动测量方法。分别测量了高信噪比以及存在噪声和伪影的角膜OCT图像中的角膜厚度,并验证了所提方法的有效性和实用性。研究结果表明,所提方法不仅可以精确测量高信噪比角膜OCT图像中的角膜厚度,对存在噪声和伪影的角膜OCT图像也有很好的测量效果。与已有的角膜厚度测量方法相比,该方法具有抗干扰能力强和测量精度高的优点。
Abstract
An automatic measurement method for corneal thickness of the optical coherence tomography (OCT) images is proposed based on boundary tracking, contour localization and curve fitting. The corneal thickness of the OCT images with high signal-to-noise ratio or with noise and artifacts is measured. The effectiveness and practicability of the proposed method are verified. The research results show that the proposed method not only can be used to accurately measure the corneal thickness of the corneal OCT images with high signal-to-noise ratio, but also has a good measurement effect for the corneal OCT images with noise and artifacts. Compared with the existing measurement methods of corneal thickness, the proposed method has the advantages of strong anti-interference ability and high measurement precision.
高阳, 李中梁, 张建华, 南楠, 王瑄, 王向朝. 光学相干层析成像图像中角膜厚度的自动测量方法[J]. 光学学报, 2019, 39(3): 0311003. Yang Gao, Zhongliang Li, Jianhua Zhang, Nan Nan, Xuan Wang, Xiangzhao Wang. Automatic Measurement Method for Corneal Thickness of Optical Coherence Tomography Images[J]. Acta Optica Sinica, 2019, 39(3): 0311003.