Low-cost speckle reduction method for OCT B-scan imaging

Julien Camard; Manuel Jorge Marques; Marie-Claire Aquilina; Giuseppe Silvestri; Darren K. Griffin; Adrian Podoleanu

doi:10.1117/12.2670352

11 August 2023 Low-cost speckle reduction method for OCT B-scan imaging

Julien Camard, Manuel Jorge Marques, Marie-Claire Aquilina, Giuseppe Silvestri, Darren K. Griffin, Adrian Podoleanu

Proceedings Volume 12632, Optical Coherence Imaging Techniques and Imaging in Scattering Media V; 126321B (2023) https://doi.org/10.1117/12.2670352
Event: European Conferences on Biomedical Optics, 2023, Munich, Germany

Abstract

The most successful methods for speckle reduction in Optical Coherence Tomography (OCT) are based on deformation of the wavefront used in scanning. Here, a simple method is presented where the wavefront is distorted by lateral translation of the lens between the 2D galvo-scanner and sample. The report demonstrates that the method can be implemented with a small piezoelectric transducer. Up to 33% improvement in Speckle Contrast Ratio (SCR) of B-scan OCT images is demonstrated.

Citation Download Citation

Julien Camard, Manuel Jorge Marques, Marie-Claire Aquilina, Giuseppe Silvestri, Darren K. Griffin, and Adrian Podoleanu "Low-cost speckle reduction method for OCT B-scan imaging", Proc. SPIE 12632, Optical Coherence Imaging Techniques and Imaging in Scattering Media V, 126321B (11 August 2023); https://doi.org/10.1117/12.2670352

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