Patent ID: 9119553
Filing Date: 2015-09-01
Classification: A61B,G06T

Abstract:
1. A fluorescence endoscope device comprising: a light source that irradiates a subject with excitation light and reference light; a fluorescence-image acquisition unit that acquires a fluorescence image by capturing fluorescence generated in the subject irradiated with the excitation light from the light source; a reference-image acquisition unit that acquires a reference image by capturing return light returning from the subject irradiated with the reference light from the light source; a corrected-fluorescence-image generator that corrects the fluorescence image acquired by the fluorescence-image acquisition unit by using the reference image acquired by the reference-image acquisition unit so as to generate a corrected fluorescence image; a threshold-value setting unit that sets a threshold value on the basis of an average value of gradation values of pixels in the corrected fluorescence image generated by the corrected-fluorescence-image generator; an image adjuster that increases the contrast in the corrected fluorescence image between an area having gradation values larger than the threshold value set by the threshold-value setting unit and an area having gradation values smaller than the threshold value; and a display unit that displays the corrected fluorescence image whose contrast is increased by the image adjuster.