| 光学相干层析术提取色散信息的初步研究 |
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| 引用本文： | 李鹏,高万荣.光学相干层析术提取色散信息的初步研究[J].光子学报,2009,38(10). |
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| 作者姓名： | 李鹏 高万荣 |
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| 作者单位： | 南京理工大学,电光学院光学工程,南京210094 |
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| 基金项目： | 国家教育部博士点基金，江苏省自然科学基金，江苏省六大人才项目基金，江苏省高校青蓝工程基金、"江苏省'333高层次人才培养工程'专项资助"、 南京理工大学青年学者基金，苏州大学重点实验室基金(KJS01002)等资助 |
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| 摘 要： | 为了提取生物组织的色散信息,提出了一种基于Fourier变换以及多项式拟合的方法.该方法通过对光学相干层析术的干涉包络进行Fourier变换,再将得到的相位谱进行多项式拟合以实现色散信息的提取.通过数值模拟及相关实验验证了该方法的可行性.本文的分析结果不但有助于实现动态的色散补偿,而且可以用于区分不同的生物组织,以及同一生物组织的不同生理状态.
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| 关 键 词： | 医用光学与生物技术 光学相干层析成像 色散提取 Fourier变换 二阶色散 |
Dispersion Extraction with Optical Coherence Tomography: a Pilot Study |
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| Li Peng,Gao Wan-rong.Dispersion Extraction with Optical Coherence Tomography: a Pilot Study[J].Acta Photonica Sinica,2009,38(10). |
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| Authors: | Li Peng Gao Wan-rong |
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| Abstract: | The dispersion signal in optical coherence tomography (OCT) carries the information about the structure and function of bio-tissues. In order to extract the information about the dispersion, a method based on the Fourier transform and the polynomial fit was presented. The interferogram envelope in OCT was Fourier transformed to the frequency domain,and then the second order dispersion information was obtained by performing a polynomial fit to the phase spectrum. Theoretical simulation and experimental data validated the method. The obtained results in this work not only could be used for the dynamical dispersion compensation,but also provide a way to characterize different tissues,and different physiological conditions. |
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| Keywords: | Medical optics and biotechnology Optical coherence tomography Dispersion extraction Fourier transforms Second order dispersion |
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