Patent ID: 8882658
Filing Date: 2014-11-11
Classification: A61B

Abstract:
1. An endoscope system, comprising: an endoscope that includes a light guiding member that guides an illuminating light that is emitted from a light source, an optical system that irradiates the illuminating light that is guided by the light guiding member onto an object, and a drive portion that rocks the light guiding member so that an irradiation position of the illuminating light that is irradiated onto the object through the optical system is an irradiation position along a predetermined scanning pattern; a coordinate information acquisition portion that acquires coordinate information that can identify an irradiation position of the illuminating light that is irradiated along the predetermined scanning pattern; a storage portion in which optical characteristics information is previously stored that, in a case where light of a predetermined wavelength band is set as a standard of chromatic aberration of magnification that is caused by the optical system, shows a correlation between an image height and an aberration amount of light of another wavelength band; a correction information acquisition portion that, upon detecting that the light of the predetermined wavelength band is irradiated onto a position corresponding to a predetermined image height based on the coordinate information, detects an aberration amount of the light of the other wavelength band at the predetermined image height based on the optical characteristics information that is stored in the storage portion, and outputs image correction information that corrects chromatic aberration of magnification of an image that is generated in accordance with return light of the light of the other wavelength band based on the aberration amount; and an image processing portion that performs image correction processing based on the image correction information.