Patent ID: 9345392
Filing Date: 2016-05-24
CPC Classification: A61B

Claim Text:
1. An endoscope system comprising: a lighting section for sequentially and repeatedly applying a plurality of types of illumination light having different wavelength bands to an internal body portion; an image sensor for sequentially capturing reflected light from said internal body portion in each frame period in which said illumination light is applied, and producing a plurality of types of frame images corresponding to said types of illumination light; a video image processing unit for independently producing a plurality of modes of video images corresponding to said plurality of types of frame images, based on said plurality of types of frame images; a display section for displaying said plurality of modes of video images; a brightness detector for detecting brightness of a specific mode of video image out of said plurality of modes of video images; an exposure condition determiner having a memory for storing correlation in exposure conditions among said plurality of modes of video images, calculating said exposure condition of all of said plurality of modes of video images including said specific mode of video image based on said brightness detected by said brightness detector and said correlation, and determining exposure conditions of said plurality of modes of video images to said calculated conditions in a transition among said plurality of modes; and