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Quantitative assessment of flow velocity-estimation algorithms for optical Doppler tomography imaging

机译:光学多普勒层析成像成像流速估计算法的定量评估

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摘要

We present a quantitative comparison of three categories of velocity estimation algorithms, including centroid techniques (the adaptive centroid technique and the weighted centroid technique), the sliding-window filtering technique, and correlation techniques (autocorrelation and cross correlation). We introduce, among these five algorithms, two new algorithms: weighted centroid and sliding-window filtering. Simulations and in vivo blood flow data are used to assess the velocity estimation accuracies of these algorithms. These comparisons demonstrate that the sliding-window filtering technique is superior to the other techniques in terms of velocity estimation accuracy and robustness to noise.
机译:我们提出了三种速度估计算法的定量比较,包括质心技术(自适应质心技术和加权质心技术),滑动窗口滤波技术和相关技术(自相关和互相关)。在这五种算法中,我们介绍了两种新算法:加权质心和滑动窗口滤波。仿真和体内血流数据用于评估这些算法的速度估计精度。这些比较表明,在速度估计的准确性和对噪声的鲁棒性方面,滑动窗口滤波技术优于其他技术。

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