Evaluation of Reconstructing Accuracy for Specklegram Method
Evaluation of Reconstructing Accuracy for Specklegram Method
复制标题
散斑图法重建精度评价
DOI：
10.3154/jvs.20.1supplement_71
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
K. Okamoto
中科院分区：
文献类型：
--
作者：
G. Tanaka;K. Okamoto
验证了散斑图法重建算法的准确性。采用正弦曲线作为体模，计算变形矢量。使用该矢量重建240 × 240尺寸的表面。对于每个空间频率，重构表面形状，得到增益和相位滞后。结果表明，与正弦曲线的幅度很好的协议。但是，对于高空间频率的情况，出现了相位滞后。
Accuracy for reconstructing algorithm used by Specklegram method was veryfied. Sine-curve was used as phantom, to calculate the deformation vector. 240x240 size surface was reconstructed using the vector. For each spacial frequency, surfase shape was reconstructed and the gain and phase-lag was obtained. The result showed good agreement with the amplitude of the sine-curve. Though, for the case with high spacial frequency, phase-lag has appeared.