Object localization using the statistical behavior of volume speckle fields

Timothy Joseph T. Abregana; Percival F. Almoro

doi:10.1117/1.OE.55.12.121720

4 August 2016 Object localization using the statistical behavior of volume speckle fields

Timothy Joseph T. Abregana, Percival F. Almoro

Author Affiliations +

Optical Engineering, Vol. 55, Issue 12, 121720 (August 2016). https://doi.org/10.1117/1.OE.55.12.121720

Abstract

Speckle noise presents challenges in object localization using reconstructed wavefronts. Here, a technique for axial localization of rough test objects based on a statistical algorithm that processes volume speckle fields is demonstrated numerically and experimentally. The algorithm utilizes the standard deviation of phase difference maps as a metric to characterize the object wavefront at different axial locations. Compared with an amplitude-based localization method utilizing energy of image gradient, the technique is shown to be robust against speckle noise.

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Timothy Joseph T. Abregana and Percival F. Almoro "Object localization using the statistical behavior of volume speckle fields," Optical Engineering 55(12), 121720 (4 August 2016). https://doi.org/10.1117/1.OE.55.12.121720

Published: 4 August 2016

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