Open AccessFast image analysis in polarization SHG microscopy
Author(s) -
Ivan Amat-Roldán,
Sotiris Psilodimitrakopoulos,
Pablo Loza-Álvarez,
David Artigas
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.017209
Subject(s) - optics , microscopy , second harmonic generation , image processing , pixel , fourier transform , computer science , polarization (electrochemistry) , signal processing , materials science , artificial intelligence , physics , digital signal processing , image (mathematics) , chemistry , laser , quantum mechanics , computer hardware
Pixel resolution polarization-sensitive second harmonic generation (PSHG) imaging has been recently shown as a promising imaging modality, by largely enhancing the capabilities of conventional intensity-based SHG microscopy. PSHG is able to obtain structural information from the elementary SHG active structures, which play an important role in many biological processes. Although the technique is of major interest, acquiring such information requires long offline processing, even with current computers. In this paper, we present an approach based on Fourier analysis of the anisotropy signature that allows processing the PSHG images in less than a second in standard single core computers. This represents a temporal improvement of several orders of magnitude compared to conventional fitting algorithms. This opens up the possibility for fast PSHG information with the subsequent benefit of potential use in medical applications.