Speckle tracking approaches in speckle sensing

Speckle tracking approaches in speckle sensing
复制标题

散斑传感中的散斑跟踪方法

DOI:
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发表时间:
2017
期刊:
Optics + Optoelectronics
影响因子:
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通讯作者:
R. Tatam
R. Tatam
中科院分区:
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文献类型:
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作者:
T. Charrett;Krzysztof Kotowski;R. Tatam

文献摘要

被引文献

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本文报告了对特征跟踪算法作为散斑相关传感器的替代数据处理方法的应用的一些初步研究,该传感器能够确定散斑图案平移和旋转。发现使用特征跟踪方法进行平移测量的准确性与基于相关性的处理的准确性相似,精度 < 0.04 像素。研究发现,在 ±20° 的角度范围内可以实现 < 0.05° 的旋转测量精度,但由于无法在较大旋转角度下匹配散斑,因此受到限制。
This paper reports some initial investigations into the application of feature tracking algorithms as an alternative data processing method for speckle correlation sensors capable of determining both the speckle pattern translation and rotation. The accuracy of translation measurements using the feature tracking approach was found to be similar to that of correlation based processing with accuracies of < 0.04 pixels. Rotation measurement accuracies of< 0.05° are found to be achievable over angle range ±20°, limited by the failure to match speckles at larger rotation angles.