公开(公告)号：US09949624B2

公开(公告)日：2018-04-24

申请号：US15177388

申请日：2016-06-09

Applicant: OLYMPUS CORPORATION

Inventor： Makoto Igarashi

IPC: A61B1/06 ,  A61B1/04 ,  A61B1/00 ,  G02B23/26 ,  G02B23/24 ,  A61B1/05 ,  A61B5/1455 ,  A61B5/1459

CPC classification number: A61B1/0638 ,  A61B1/00 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/04 ,  A61B1/05 ,  A61B1/0676 ,  A61B5/14551 ,  A61B5/1459 ,  G02B23/2484 ,  G02B23/26

Abstract: A living body observation system includes: an illuminating light generation section configured to generate first light and second light; an image pickup section; a computation section configured to calculate a difference degree indicating a degree of difference between a luminance value of a first image obtained by picking up an image of return light of the first light and a luminance value of a second image obtained by picking up an image of return light of the second light in a same pixel; an enhancement processing section configured to enhance a contrast of the pixel in which the difference degree exceeds a threshold relative to a pixel in which the difference degree does not exceed the threshold; and an observation image creation section configured to create an observation image by using the first image after the process by the enhancement processing section and the second image.