Performance Analysis of Spatial Laser Speckle Contrast Implementations

Pedro G. Vaz, Anne Humeau-Heurtier, Edite Figueiras, Carlos Correia, João Cardoso


This work presents an analysis of the performances for four different implementations used to compute laser speckle contrast on images. Laser speckle contrast is a widely used imaging technique for biomedical applications. These implementations were tested using synthetic laser speckle patterns with different resolutions, speckle sizes, and contrasts. From the applied methods, three implementations are already known in the literature. A new alternative is proposed herein, which relies on two-dimensional convolutions, in order to improve the image processing time without compromising the contrast assessment. The proposed implementation achieves a processing time two orders of magnitude lower than the analytical evaluation. The goal of this technical manuscript is to help the developers and researchers in computing laser speckle contrast images.


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Paper Citation

in Harvard Style

Vaz P., Humeau-Heurtier A., Figueiras E., Correia C. and Cardoso J. (2017). Performance Analysis of Spatial Laser Speckle Contrast Implementations . In Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 3: BIOINFORMATICS, (BIOSTEC 2017) ISBN 978-989-758-214-1, pages 148-153. DOI: 10.5220/0006141101480153

in Bibtex Style

author={Pedro G. Vaz and Anne Humeau-Heurtier and Edite Figueiras and Carlos Correia and João Cardoso},
title={Performance Analysis of Spatial Laser Speckle Contrast Implementations},
booktitle={Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 3: BIOINFORMATICS, (BIOSTEC 2017)},

in EndNote Style

JO - Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 3: BIOINFORMATICS, (BIOSTEC 2017)
TI - Performance Analysis of Spatial Laser Speckle Contrast Implementations
SN - 978-989-758-214-1
AU - Vaz P.
AU - Humeau-Heurtier A.
AU - Figueiras E.
AU - Correia C.
AU - Cardoso J.
PY - 2017
SP - 148
EP - 153
DO - 10.5220/0006141101480153