4 August 2016 Object localization using the statistical behavior of volume speckle fields
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Optical Engineering, 55(12), 121720 (2016). doi: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.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Timothy Joseph T. Abregana, Percival F. Almoro, "Object localization using the statistical behavior of volume speckle fields," Optical Engineering 55(12), 121720 (4 August 2016). http://dx.doi.org/10.1117/1.OE.55.12.121720
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KEYWORDS
Speckle

Wavefronts

Fringe analysis

Wave propagation

Holograms

Spiral phase plates

Digital holography

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