Open AccessPolarised stereo endoscope and narrowband detection for minimal access surgery
Author(s) -
Neil T. Clancy,
Shobhit Arya,
Ji Qi,
Danail Stoyanov,
George B. Hanna,
Daniel S. Elson
Publication year - 2014
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.5.004108
Subject(s) - optics , endoscope , contrast (vision) , narrowband , physics , band pass filter , optical coherence tomography , computer science , birefringence , linear filter , computer vision , materials science , artificial intelligence , filter (signal processing) , medicine , radiology
Polarisation imaging has the potential to provide enhanced contrast based on variations in the optical properties, such as scattering or birefringence, of the tissue of interest. Examining the signal at different wavebands in the visible spectrum also allows interrogation of different depths and structures. A stereo endoscope has been adapted to allow snapshot acquisition of orthogonal linear polarisation images to generate difference of linear polarisation images. These images are acquired in three narrow bands using a triple-bandpass filter and pair of colour cameras. The first in vivo results, acquired during a surgical procedure on a porcine subject, are presented that show wavelength dependent variations in vessel visibility and an increase in contrast under polarised detection.