A new multiplexed system for the simultaneous measurement of out-of-plane deformation and its first derivative

QH Zhao, X Zhang, SL Wu, HQ Wang, PZ Yan… - Optics …, 2021 - Elsevier
A new multiplexed system based on double imaging Mach–Zehnder interferometry is
proposed in this study for the simultaneous measurement of out-of-plane deformation and its …

Improvement of activity level detection in dynamic speckle patterns with fuzzy logic operators

NI Echeverría, EGC Ayala, MN Guzmán… - Journal of …, 2022 - iopscience.iop.org
In this work, the design of a multi-descriptor model is proposed to improve the identification
of activity levels in dynamic laser speckle (DLS) image sequences. Fuzzy predicates …

Multi-factor fusion index assessment of digital speckle interferometry images quality under dynamic environment

Z Li, X Hu, P Zhong, Y Chen, X Xu, H Hu - Optik, 2022 - Elsevier
When digital speckle pattern interferometry (DSPI) is applied to dynamic environmental, it is
often accompanied by severe speckle de-correlation, which severely limits the application …

Monitoring of functional blood flow on human hand due to effect of different treatments by laser biospeckle imaging

S Kumari, AK Nirala - Lasers in Medical Science, 2019 - Springer
In the proposed work, we report on qualitative as well as quantitative biospeckle monitoring
of functional blood flow on the human hand. Intensity-based algorithms namely generalized …

Assessment of black rot development on apple surface using laser biospeckle technique

C Koley, R Das, AK Nirala - Physica Scripta, 2023 - iopscience.iop.org
In our present study, the laser biospeckle technique has been applied to monitor the spread
of black rot fungal disease and evaluate the infected area on apple surface for the first time …

Procesamiento opto-digital empleando patrones de Speckle y vórtices ópticos

AL Villamizar Amado - 2024 - sedici.unlp.edu.ar
En los últimos años, se han reportado aplicaciones de metrología con vórtices ópticos o
singularidades de fase para la detección de desplazamientos con precisiones …

Poincare sphere noise filtering for singularities in dynamic speckle activity: Application to paint drying time measurement

ALV Amado, D Sierra-Sosa, A Elmaghraby… - Optics and Lasers in …, 2021 - Elsevier
We present an approach based on optical vortex density to characterize a dynamic process.
The proposal is tested in real experiments involving the drying of paint as case study. In this …

[PDF][PDF] Poincare sphere noise filtering for singularities in dynamic speckle activity: Application to paint drying time measurement

AL Villamizar Amado, DE Sierra Sosa, A Elmaghraby… - 2021 - drive.google.com
abstract We present an approach based on optical vortex density to characterize a dynamic
process. The proposal is tested in real experiments involving the drying of paint as case …