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Polarimetric Endoscope for Image Enhancement of Surface Micro-structure on Mucosa

This paper presents a novel image processing method to enhance appearance of micro-structure of a livingorgan mucosa using polarized lighting and imaging. A new technique that uses two pairs of parallel and crossed nicol polarimetric images captured under two different linearly polarized lightings are presented, and an averaged subtracted polarization image (AVSPI) which is calculated from the above four images is introduced. Feasibility experiments were performed using the prototype of polarimetric endoscope hardware using excised porcine stomachs.