ELECTRONIC ENDOSCOPE SYSTEM, AN ELECTRONIC ENDOSCOPE PROCESSOR, AND METHOD OF ACQUIRING BLOOD VESSEL INFORMATION

摘要

PROBLEM TO BE SOLVED: To provide a distribution image with improved robustness of blood vessel information.SOLUTION: The electronic endoscope system includes: an illuminating unit for illuminating with illumination light; an electronic endoscope including an imaging device for receiving reflected light of the illumination light to acquire an image of a subject tissue and outputting an imaging signal representing a luminance of the reflected light; a first image data producing means for outputting a plurality of first image data having different wavelength bands from the imaging signal; a blood vessel information producing means for producing blood vessel information from the first image data; a reference value region setting means for setting a given region in an image as reference value region; a reference value blood vessel information calculating means for calculating a reference value for the blood vessel information based on second image data within the reference value region to acquire a reference value blood vessel information; a relative value blood vessel information calculating means for calculating relative value blood vessel information from a difference between the blood vessel information and the reference value blood vessel information; an image producing means for producing a relative value blood vessel information image in simulated colors from the relative value blood vessel information; and an image displaying means for displaying a relative value blood vessel information image.