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A new high-resolution processing method for the deconvolution of optical coherence tomography signals

机译:一种新的光学相干断层扫描信号解构的高分辨率处理方法

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We show the feasibility and the potential of a new signal processing algorithm for the high-resolution deconvolution of OCT signals. Our technique relies on the description of the measures in a parametric form, each set of four parameters describing the optical characteristics of a physical interface (e.g., complex refractive index, depth). Under the hypothesis of a Gaussian source light, we show that it is possible to recover the 4K parameters corresponding to K interfaces using as few as 4K uniform samples of the OCT signal. With noisy data, we can expect the robustness of our method to increase with the oversampling rate-or with the redundancy of the measures. The validation results show that the quality of the estimation of the parameters (in particular the depth of the interfaces) is narrowly linked to the noise level of the OCT measures-and not to the coherence length of the source light-and to their degree of redundancy.
机译:我们展示了OCT信号的高分辨率去卷积新信号处理算法的可行性和潜力。我们的技术依赖于参数形式的测量的描述,每组四个参数描述物理接口的光学特性(例如,复杂折射率,深度)。在高斯源光的假设下,我们表明可以使用少数OCT信号的4K均匀样品恢复对应于K接口的4K参数。通过嘈杂的数据,我们可以预期我们的方法的稳健性与过采样率 - 或措施冗余。验证结果表明,参数估计的质量(特别是接口的深度)与OCT测量的噪声水平差异 - 而不是源光的相干长度 - 以及其程度冗余。

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