Speckle tracking approaches in speckle sensing

Thomas O. H. Charrett; Krzysztof Kotowski; Ralph P. Tatam

doi:10.1117/12.2264225

16 May 2017 Speckle tracking approaches in speckle sensing

Thomas O. H. Charrett, Krzysztof Kotowski, Ralph P. Tatam

Author Affiliations +

Proceedings Volume 10231, Optical Sensors 2017; 102310L (2017) https://doi.org/10.1117/12.2264225
Event: SPIE Optics + Optoelectronics, 2017, Prague, Czech Republic

Abstract

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.

Citation Download Citation

Thomas O. H. Charrett, Krzysztof Kotowski, and Ralph P. Tatam "Speckle tracking approaches in speckle sensing", Proc. SPIE 10231, Optical Sensors 2017, 102310L (16 May 2017); https://doi.org/10.1117/12.2264225

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